January Weather in Florianopolis, Brazil

Last updated: August 21, 2025

In January, Florianopolis, Brazil, boasts a vibrant tropical climate, where maximum temperatures can soar to a sweltering 36°C (96°F), contrasting with a pleasant average of 25°C (78°F). While the heat is significant, visitors should be prepared for frequent rain, as 178 mm (7.0 in) of precipitation falls over the course of approximately 17 days, leading to a humidity level of 86%. This combination of warmth and moisture creates an invigorating atmosphere, making January an ideal time for both beach lovers and outdoor adventurers seeking to experience the island's lush beauty and dynamic weather.

January Temperature in Florianopolis

In January, Florianopolis enjoys its peak summer fervor, with temperatures soaring to an impressive max of 36°C (96°F), while the average rests comfortably at 25°C (78°F). Nights remain warm with a minimum of 20°C (68°F), inviting evening strolls along the beach or vibrant meals outdoors. As February approaches, the weather remains similarly warm, with slightly lower highs of 35°C (95°F), indicating that the summer heat continues to embrace the island. A cooling trend begins in March, where temperatures drop to a maximum of 32°C (91°F), transitioning into more temperate conditions. This gradual decline marks a shift towards autumn, with average temperatures settling around 24°C (76°F) by the end of March. The contrast from the blistering January highs to the milder temperatures of early autumn showcases the beautiful seasonal variation that defines the climate of Florianopolis, making it a year-round destination for sun-seekers and nature lovers alike.

January Weather in Florianopolis: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Florianopolis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Florianopolis, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec787776726865626367697175
Data source: Temperature data for Florianopolis generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Florianopolis

In January, Florianópolis experiences its peak precipitation, with an average of 178 mm (7.0 in) spread over 17 days, marking it as the wettest month of the year. This trend of abundant rainfall continues into February, where precipitation decreases to 144 mm (5.7 in) over 16 days, before tapering off further in March with 133 mm (5.2 in) across 21 days. As the year progresses, the rain becomes less frequent and less intense, with April and May seeing 79 mm (3.1 in) and 107 mm (4.2 in) respectively. By mid-year, July notably drops to just 46 mm (1.8 in) over only 6 days, reflecting a significant dry spell. The trend of diminishing rainfall continues through August and September, with precipitation gradually rising again in the latter months, culminating in December with 140 mm (5.5 in). Overall, January stands out not just for its high rainfall total but also signifies the onset of a wetter season that slowly transitions into drier months.

January Precipitation Trends in Florianopolis

The chart displays monthly precipitation patterns in Florianopolis, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Florianopolis, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec17814413379108118466388130101140
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Florianopolis

January in Florianopolis, Brazil, sets the stage with a notable humidity level of 86%, making it one of the year's most humid months. This high moisture content lingers somewhat consistently through February and March, where humidity remains above 83%. As the seasons transition, April and May continue with similar levels around 85-86%, hinting at the tropical climate's persistent warmth. The humidity dips slightly during the winter months of June and July, reaching a low of 80% in July, but quickly rebounds with a notable increase in August. The trend towards higher humidity returns as November and December approach, culminating in a peak of 88% in December. Overall, January serves as a pivotal month, where the warmth and humidity reflect the vibrant tropical character of this coastal paradise.

January Average Humidity in Florianopolis

This chart illustrates the average monthly humidity levels in Florianopolis, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Florianopolis is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%83%85%85%86%85%80%79%82%82%86%88%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Florianopolis

In January, Florianopolis experiences an extreme UV Index of 15, making sun protection essential with a rapid burn time of just 10 minutes. This trend of high UV levels continues through February, with only a slight drop to 14, maintaining the same urgent need for sun safety. March sees a slight decline to an Index of 12 but remains in the extreme category, reinforcing the necessity for caution during this sun-soaked summer. As autumn arrives in April, the UV Index drops to 10, transitioning into the very high category, and extending the burn time to 15 minutes. Throughout the subsequent months, UV levels fluctuate, with May and June offering slightly milder conditions, but caution remains paramount, especially as the UV Index rises once more from the moderate levels of June to the very high readings in September. For those planning to soak up the sun year-round, staying informed about the UV Index is key. For more details, check out the comprehensive guide here: Florianopolis UV Index.

Maximum UV Index Levels in Florianopolis for January

The chart shows the monthly maximum UV Index (UVI) for Florianopolis in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Florianopolis typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15141210755710121415
Data source: Florianopolis January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Florianopolis

January in Florianopolis bathes visitors in a warm embrace of 249 hours of sunshine, setting the stage for a vibrant summer atmosphere. As the year progresses, the sun shines even brighter, peaking in November with an impressive 313 hours, creating a paradise for beachgoers and outdoor enthusiasts alike. The sun-kissed days seem to linger through the end of the year, culminating in a radiant 342 hours in December. This upward trend in sunshine hours from April through December consistently enhances the allure of this picturesque destination, inviting travelers to bask in its beauty during the sunniest months. While the summer months boast the highest sunshine, even the cooler seasons maintain a delightful glow, ensuring that Florianopolis shines brightly regardless of the calendar.

Monthly Sunshine Duration in Florianopolis: January Highlighted

The January sunshine duration represents the total number of hours Florianopolis experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec249h300h307h284h252h229h262h264h244h260h313h342h
Data source: Florianopolis January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Florianopolis During January

In January, Florianopolis experiences a low likelihood of sunny weather, with only a 19% chance of sunshine. This marks the beginning of the year with relatively dreary skies, but the trend swiftly improves as February rolls in, boasting a 49% chance of sun. Following this peak, the likelihood of clear days continues to fluctuate, with March and April maintaining similar chances at 32% and 49%, respectively. As the months progress into mid-year, the probability of sunshine rises once more, peaking in July at 57%. In contrast, the latter months of the year, particularly October and November, see a decline again, reminding us that sunny days can be quite elusive in January. Overall, while the start of the year may seem cloudy, warmer and sunnier days are just around the corner for those willing to wait.

Percentage of Sunny Days in January in Florianopolis

The chart illustrates the percentage of sunny days in Florianopolis throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Florianopolis experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%49%33%49%54%37%57%33%26%18%28%38%
Data source: Florianopolis January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Florianopolis in January

In Florianopolis, Brazil, January shines with an impressive 13 hours of daylight, setting the tone for a summer filled with sun-soaked adventures. This extended period of illumination continues into February, maintaining that same count of daylight, before gradually tapering off to 12 hours in March. As the seasons shift, daylight diminishes, with April and May offering just 11 and 10 hours, respectively, as winter approaches. Interestingly, from June to July, daylight remains stable at 10 hours, providing a consistent but shorter daylight experience. Come late winter, August marks a slight resurgence, climbing back to 11 hours before edging up to 12 hours in October. The return of November and December ushers in longer days once more, returning to the seasonal high of 13 hours, giving residents and visitors alike plenty of time to enjoy the vibrant beauty of this coastal paradise.

Average Daylight Hours in Florianopolis for January

The chart illustrates the variation in daylight duration in Florianopolis throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 38m13h12h 12m11h 23m10h 43m10h 24m10h 34m11h 9m11h 56m12h 45m13h 28m13h 50m
Data source: Florianopolis daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Florianopolis

In January, Florianopolis greets visitors with a moderate average wind speed of 3.6 m/s (8 mph), setting the perfect stage for beach activities and outdoor adventures. As the summer season unfolds, the winds tend to lighten, dipping to 2.7 m/s (6 mph) in February before gradually picking up again in the following months. The breeze remains relatively consistent from March to September, hovering around the mid-range speeds of 3.0 to 3.6 m/s (7 to 8 mph), providing a refreshing contrast to the warm, tropical air. Interestingly, October sees the peak wind speed at 4.0 m/s (9 mph), which could entice kitesurfers and windsurfers eager for exhilarating conditions. As the year winds down, the months of November and December return to stable gusts at a comfortable 3.7 to 3.8 m/s (8 mph). This rhythmic pattern of winds not only enhances the scenic beauty of the island but also plays a significant role in shaping the vibrant atmosphere of Florianopolis throughout the year.

Average January Wind Speed in Florianopolis

The chart displays monthly wind speed patterns in Florianopolis, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.6 m/s2.73.03.53.13.42.83.33.64.03.83.7
Data source: Florianopolis January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Florianopolis Compares to Other Months

Weather in Florianopolis varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Florianopolis, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing January and February weather, January experiences slightly higher temperatures with a minimum of 20°C (68°F) and a maximum of 36°C (96°F), while February has a slightly lower minimum of 18°C (64°F) and a maximum of 35°C (95°F). Both months have an average temperature of 25°C (77°F), indicating a relatively stable climate. Precipitation levels in January are higher, totaling 178 mm (7.0 in) over 17 days, compared to February's 144 mm (5.7 in) across 16 days. Additionally, humidity levels are slightly elevated in January at 86%, while February sees a decrease to 83%. For more detailed insights, check out Florianopolis weather in February.

January and March in Florianopolis exhibit distinct weather patterns. January typically experiences higher temperatures, with a minimum of 20°C (68°F) and a maximum reaching up to 36°C (96°F), while March sees slightly cooler conditions, with minimum temperatures around 19°C (66°F) and a peak of 32°C (91°F). Precipitation is more abundant in January, totaling 178 mm (7.0 in) over 17 days, as compared to March's 133 mm (5.2 in) spread out over 21 days. Humidity levels remain fairly close, with January at 86% and March at 85%, contributing to a warm and muggy climate during both months. For more detailed weather insights, check out Florianopolis weather in March.

January and April in Florianópolis showcase distinct climatic differences. January typically experiences warmer temperatures, with minimums around 20°C (68°F) and maximums reaching 36°C (96°F), while April sees cooler conditions, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 31°C (87°F). Additionally, January is much wetter, receiving about 178 mm (7.0 in) of precipitation over 17 days, compared to April's 79 mm (3.1 in) spread across 14 days. Despite the slight difference in humidity, with January at 86% and April at 85%, the overall feel of January is decidedly more humid and tropical compared to the milder April weather. For more detailed information about April weather, check out Florianopolis weather in April.

In January, the weather is significantly warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 36°C (96°F), compared to May's cooler range of 10°C (51°F) to 30°C (86°F). While January experiences higher precipitation levels at 178 mm (7.0 in) over 17 days, May sees a decrease in rainfall to 107 mm (4.2 in) across 14 days. Despite the difference in temperature and precipitation, both months maintain a consistent humidity level of 86%. For a closer look at what to expect, you can check out the details here: Florianopolis weather in May.

In January, the weather is significantly warmer, with minimum temperatures around 20°C (68°F) and maximums reaching up to 36°C (96°F), accompanied by high humidity levels of 86%. This month also sees substantial rainfall, with an average of 178 mm (7.0 in) over 17 days. In contrast, June offers a much cooler climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 28°C (83°F). Rainfall is also less in June, totaling 118 mm (4.6 in) over 11 days, while humidity remains slightly lower at 85%. For more details on the weather in June, visit Florianopolis weather in June.

January and July exhibit stark contrasts in weather, reflecting the seasonal differences. In January, temperatures soar, with minimums around 20°C (68°F) and highs reaching up to 36°C (96°F), coupled with high humidity at 86% and significant rainfall of 178 mm over 17 days. In contrast, July experiences much cooler temperatures, ranging from a minimum of 6°C (43°F) to a comfortable average of 17°C (62°F) and a maximum of 27°C (82°F). This month also enjoys a drier climate with only 46 mm of precipitation over 6 days and slightly lower humidity at 80%. For a detailed look at the weather conditions in July, visit Florianopolis weather in July.

The weather in January is notably warmer and more humid compared to August. In January, temperatures range from a minimum of 20°C (68°F) to a scorching maximum of 36°C (96°F), accompanied by high humidity levels at 86%. It experiences significant rainfall with an average precipitation of 178 mm (7.0 in) over 17 days. In contrast, August sees a much cooler climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 27°C (80°F) and a lower average of 17°C (63°F). The precipitation in August is considerably reduced to 63 mm (2.5 in) over just 9 days, and humidity levels are also lower at 79%. For more detailed information, you can explore Florianopolis weather in August.

January and September in Florianopolis present contrasting weather conditions. In January, temperatures are significantly warmer, with a minimum of 20°C (68°F) and a maximum of 36°C (96°F), while September experiences cooler temperatures, ranging from a low of 12°C (54°F) to a high of 28°C (82°F). The humidity remains high in January at 86%, compared to September's lower humidity level of 82%. Additionally, January sees more precipitation, with 178 mm (7.0 in) spread over 17 days, while September has much less rainfall at 88 mm (3.5 in) over 12 days. For a closer look at weather specifics, you can visit Florianopolis weather in September.

January and October present notably different weather characteristics. In January, temperatures range from a minimum of 20°C (68°F) to a maximum of 36°C (96°F), with an average of 25°C (78°F). The month experiences higher precipitation levels, totaling 178 mm (7.0 in) over 17 days, accompanied by high humidity at 86%. In contrast, October offers milder conditions, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 31°C (88°F) and an average of 21°C (69°F). Precipitation is less frequent in October, totaling 130 mm (5.1 in) over 16 days, and humidity is slightly lower at 82%. For more detailed information, you can check Florianopolis weather in October.

In January, the weather is notably warmer than in November, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 36°C (96°F), averaging around 25°C (78°F). In contrast, November features milder temperatures, with a minimum of 14°C (57°F) and a maximum of 32°C (90°F), averaging 22°C (72°F). Additionally, January experiences higher precipitation levels, totaling 178 mm (7.0 in) over 17 days, compared to November's 101 mm (4.0 in) over 16 days. Interestingly, both months maintain a constant humidity level of 86%. For more details, you can check Florianopolis weather in November.

When comparing the weather in January and December, January tends to be warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 36°C (96°F), while December experiences slightly cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 33°C (92°F). January also sees higher precipitation levels, with 178 mm (7.0 in) over 17 days, compared to December’s 140 mm (5.5 in) over 16 days. Additionally, humidity remains high in both months, with January at 86% and December slightly higher at 88%. For more detailed information on December weather, check out Florianopolis weather in December.

Compare Florianopolis's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Florianopolis

January in Florianopolis stands out for its hot and humid climate, where temperatures soar, often reaching their peak for the year. With an average of 25°C (78°F), this month embraces the essence of summer, inviting both locals and tourists to explore the vibrant beaches. However, be prepared for frequent rain, as 17 days of precipitation can disrupt outdoor plans, bringing a mix of excitement and challenge to your beach getaway. The humidity levels remain high, typically around 86%, adding to the tropical feel of the island. Unlike the cooler and drier months that follow, January is best experienced with ample hydration and sunscreen, making it a truly memorable time to enjoy everything Florianopolis has to offer. For more insights into the weather patterns throughout the year, check out Florianopolis Climate.