January Weather in Fortaleza, Brazil

Last updated: August 21, 2025

January in Fortaleza, Brazil showcases a tropical climate characterized by warm temperatures and significant humidity. With maximum temperatures reaching up to 32°C (89°F) and an average of 27°C (82°F), the month offers plenty of warmth for sun-seekers. However, visitors should be prepared for some rainy days, as an average of 83 mm (3.3 in) of precipitation is spread over 18 days, contributing to a humidity level of 84%. Despite the rain, the vibrant city remains a lively destination, blending sun, culture, and a touch of tropical magic.

January Temperature in Fortaleza

In Fortaleza, Brazil, January welcomes you with a warm embrace, featuring minimum temperatures around 24°C (75°F), a pleasant average of 27°C (82°F), and maximums soaring to 32°C (89°F). This consistency in warmth, with little fluctuation in temperatures throughout the year, reflects the region’s tropical climate. As the month transitions into February, the weather remains comparably steady, with only slight variations in minimum and maximum values. The trend continues from March to May, where the daily delights of warm sun remain constant, creating an inviting atmosphere reminiscent of a sun-kissed paradise. Even into the later months, from June onward, temperatures may dip slightly during the night, but the overall vibe maintains comfortable warmth, ensuring that January is just the beginning of Fortaleza’s inviting tropical tapestry.

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

The chart illustrates January temperature patterns in Fortaleza, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fortaleza, 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).
JanFebMarAprMayJunJulAugSepOctNovDec818181818181808081818282
Data source: Temperature data for Fortaleza 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 Fortaleza

January in Fortaleza, Brazil, marks the beginning of a transition into the wetter months, with precipitation reaching 83 mm (3.3 in) over approximately 18 days. This sets the stage for a significant uptick in rainfall that follows in February and March, with the latter months seeing over 200 mm of precipitation. As the rainy season intensifies through April, the city experiences its peak precipitation of 286 mm (11.2 in). Following this deluge, rainfall drastically decreases in the subsequent months, dropping to a mere 9 mm (0.4 in) by August, with only sporadic showers continuing throughout the rest of the year. Thus, January's moderate rain serves as a prelude, heralding a dramatic increase in precipitation that characterizes the early part of the year in Fortaleza.

January Precipitation Trends in Fortaleza

The chart displays monthly precipitation patterns in Fortaleza, 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 Fortaleza, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec83211213286161824496111748
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Fortaleza

In January, Fortaleza, Brazil, experiences a notably high humidity level of 84%, setting the tone for a summer that remains consistently moist. The humidity gently increases to 85% in February and peaks at 87% in March, creating a sultry atmosphere ideal for tropical enjoyment but potentially stifling for some. As the season progresses, a slight decline begins with April and May registering 86% and 85% respectively, hinting at the region's gradual shift as autumn approaches. By June, the humidity drops further to 81%, and the trend continues downward through the winter months, reaching a more comfortable 75% by July and August. This decrease persists into September and October, maintaining a steady level around 74% to 75%, before creeping back up toward year-end, with November at 77% and December at 81%. Overall, the data illustrates a clear seasonal pattern, with January initiating a humid cycle that eventually eases into cooler, drier months.

January Average Humidity in Fortaleza

This chart illustrates the average monthly humidity levels in Fortaleza, 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 Fortaleza is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%87%86%85%81%75%74%74%75%77%81%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Fortaleza

In January, Fortaleza, Brazil, experiences a notably high UV Index of 14, categorizing this month as having extreme sun exposure levels with a burn time of just 10 minutes. This trend of extreme UV levels continues into February, maintaining the same index; however, it peaks in March and April with an index of 15. Throughout the year, from May to August, the index remains in the extreme category, but gradually dips to an index of 11 by mid-year. The later months see a slight resurgence, with September through December holding steady at 13. This consistent pattern underscores the importance of sun protection for residents and visitors alike. For more detailed information, check out the Fortaleza UV Index.

Maximum UV Index Levels in Fortaleza for January

The chart shows the monthly maximum UV Index (UVI) for Fortaleza 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 Fortaleza typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415151311111213131313
Data source: Fortaleza 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 Fortaleza

In January, Fortaleza, Brazil, welcomes the new year with an impressive 268 hours of sunshine, setting the stage for a vibrant summer. As weeks pass, the sun's generosity increases, peaking in July with a remarkable 339 hours, making it the sunniest month. The golden rays continue to shine brightly through October, which boasts a brilliant 361 hours of sunlight. This delightful trend of abundant sunshine reaches its zenith in the heart of the year, while January serves as the ideal starting point for those seeking warmth and splendor. As the year progresses, the sun only seems to get more generous, inviting residents and visitors alike to bask in the glorious Brazilian sunshine.

Monthly Sunshine Duration in Fortaleza: January Highlighted

The January sunshine duration represents the total number of hours Fortaleza 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.
JanFebMarAprMayJunJulAugSepOctNovDec268h276h313h288h323h322h339h352h345h361h350h347h
Data source: Fortaleza January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fortaleza During January

In Fortaleza, Brazil, January offers a moderate 33% chance of sunny weather, making it a promising start to the year but not the sunniest month. As the season progresses, the likelihood of sunshine gradually increases, peaking with a 75% chance in September, signaling the height of the dry season. Interestingly, the sunny days trend upwards significantly from June onwards, reaching a peak in August, before tapering off again towards the end of the year. This pattern highlights Fortaleza's tropical climate, where sunshine becomes more prevalent in mid-year, inviting beachgoers to enjoy the vibrant outdoor lifestyle.

Percentage of Sunny Days in January in Fortaleza

The chart illustrates the percentage of sunny days in Fortaleza 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 Fortaleza experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec33%34%27%43%48%65%66%71%75%66%61%42%
Data source: Fortaleza January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fortaleza in January

In Fortaleza, Brazil, January ushers in a consistent rhythm of sunshine, featuring a generous 12 hours of daylight—this pattern carries on unabated through February, March, and April. However, as the year transitions into the latter part of spring and the onset of winter, daylight hours begin to taper off slightly, with May through August offering a steady 11 hours of light each day. As the year progresses toward September, an invigorating return to 12 hours of daylight re-establishes itself, remaining consistent through October, November, and December. This cyclical pattern showcases Fortaleza's delightful equatorial climate, where daylight remains predominantly abundant throughout the year, making it a splendid destination for sun-seekers.

Average Daylight Hours in Fortaleza for January

The chart illustrates the variation in daylight duration in Fortaleza throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 17m12h 12m12h 6m12h11h 55m11h 54m11h 54m11h 58m12h 4m12h 10m12h 16m12h 19m
Data source: Fortaleza daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Fortaleza

In Fortaleza, Brazil, the January winds set the tone for a breezy start to the year, with an average wind speed of 5.5 m/s (12 mph). This marks a gradual increase compared to the February winds, which gently decrease to 4.6 m/s (10 mph). As the months progress, a notable trend emerges: the winds gradually pick up, reaching their peak in August at 6.6 m/s (15 mph). The breezy conditions persist into September, only to decline slightly in October. As the year winds down, November and December bring back a moderate breeze at 5.7 m/s and 5.6 m/s, respectively. Overall, the wind patterns in Fortaleza reflect a dynamic ebb and flow, with January serving as a refreshing beginning to a season of varied breezy delights.

Average January Wind Speed in Fortaleza

The chart displays monthly wind speed patterns in Fortaleza, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.5 m/s4.63.84.24.24.85.66.66.56.25.75.6
Data source: Fortaleza January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Fortaleza Compares to Other Months

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

In comparing the weather between January and February, January enjoys slightly warmer temperatures, with a minimum of 24°C (75°F) and a maximum of 32°C (89°F), while February sees a minimum of 23°C (74°F) and a maximum of 31°C (88°F). However, February experiences significantly higher precipitation, totaling 211 mm (8.3 in) over 24 days compared to January's 83 mm (3.3 in) over 18 days. Additionally, both months have similar average temperatures and humidity levels, with February being slightly more humid at 85% compared to January's 84%. For a more detailed look at February’s weather, you can visit Fortaleza weather in February.

In January, the weather in Fortaleza features temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average temperature of 27°C (82°F). The month experiences 83 mm (3.3 in) of precipitation over 18 days, accompanied by a humidity level of 84%. In contrast, March showcases similar temperature averages, with a minimum of 24°C (75°F) and a maximum of 31°C (88°F), but sees a significant increase in precipitation, reaching 213 mm (8.4 in) and spanning 29 rainy days. The humidity also rises slightly to 87%. For more detailed insights into March's weather, you can visit Fortaleza weather in March.

In January, the weather features a warm temperature range with minimums at 24°C (75°F) and maximums reaching 32°C (89°F), accompanied by moderate humidity levels of 84%. However, the month also experiences 83 mm (3.3 in) of precipitation over 18 days. In contrast, April presents a similar temperature profile, with an average temperature of 27°C (81°F) and a slight decline in maximum temperature to 31°C (88°F). Notably, there is a significant increase in precipitation, totaling 286 mm (11.2 in) over 27 days, and humidity rises slightly to 86%. For a more detailed insight into April weather in Fortaleza, check out Fortaleza weather in April.

In January, temperatures in Fortaleza typically range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average temperature of 27°C (82°F). The month experiences moderate rainfall, totaling 83 mm (3.3 in), over about 18 days, and the humidity hovers around 84%. By contrast, May presents a similar temperature range, with minimums of 24°C (75°F) and maximums of 31°C (88°F), resulting in a slightly lower average of 27°C (81°F). However, May brings significantly more rain, with precipitation reaching 161 mm (6.3 in) across 21 days, alongside a marginally higher humidity level of 85%. For a closer look at the conditions in May, visit Fortaleza weather in May.

In January, the weather features a warm temperature range, with a minimum of 24°C (75°F), an average of 27°C (82°F), and a maximum of 32°C (89°F). This month also experiences higher humidity at 84% and sees about 83 mm (3.3 in) of precipitation over 18 days. In contrast, June brings similar temperatures with a minimum of 23°C (74°F), an average of 27°C (81°F), and a maximum of 32°C (89°F). However, June is slightly drier, with total rainfall at 82 mm (3.2 in) over just 13 days and a lower humidity level of 81%. For a detailed look at June weather, check Fortaleza weather in June.

In January, the weather in Fortaleza is notably warmer, with average temperatures reaching 27°C (82°F) and a maximum of 32°C (89°F). The month is characterized by high humidity levels of 84% and frequent rain, accumulating 83 mm over 18 days. In contrast, July sees similar temperatures, with a minimum of 22°C (73°F) and the same maximum of 32°C (89°F), but it benefits from lower humidity at 75% and significantly less rainfall, totaling just 44 mm across 9 days. For more detailed information about July weather in Fortaleza, you can check Fortaleza weather in July.

In comparing the weather of January and August, January typically experiences slightly higher humidity at 84%, while August sees a more comfortable level at 74%. The average temperatures are quite similar, with January averaging 27°C (82°F) and August also at 27°C (81°F). However, January is characterized by significantly more rainfall, accumulating 83 mm (3.3 in) over 18 days, compared to August's minimal precipitation of just 9 mm (0.4 in) over only 3 days. This notable difference in precipitation makes August a drier month ideal for enjoying outdoor activities. For further details, you can refer to Fortaleza weather in August.

In January, the weather in Fortaleza is characterized by higher humidity levels at 84%, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 32°C (89°F). This month also experiences significant precipitation, averaging 83 mm (3.3 in) over 18 days, making it noticeably wetter. In contrast, September offers a drier and more pleasant climate, with humidity dropping to 74%. The temperature range is similar, with a minimum of 24°C (75°F) and a maximum of 31°C (89°F), but it sees a drastic reduction in rainfall, accumulating only 6 mm (0.2 in) over just 1 day. For a closer look at the conditions, check out Fortaleza weather in September.

In January, Fortaleza experiences warm temperatures with a minimum of 24°C (75°F) and an average of 27°C (82°F), peaking at 32°C (89°F). The month is also quite rainy, featuring 83 mm (3.3 in) of precipitation over 18 days, which contributes to a high humidity level of 84%. In contrast, October has a similar temperature range, with a minimum of 24°C (76°F) and an average of 27°C (82°F), but the maximum temperature is slightly lower at 31°C (89°F). October enjoys significantly less rainfall, with only 11 mm (0.4 in) of precipitation across just 2 days, resulting in a lower humidity of 75%. For more detailed insights, check out Fortaleza weather in October.

In January, the weather is characterized by slightly lower temperatures, with a minimum of 24°C (75°F) and an average of 27°C (82°F), peaking at 32°C (89°F). This month also sees higher precipitation levels, with 83 mm (3.3 in) of rain over 18 days and higher humidity at 84%. In contrast, November experiences a mild increase in minimum and average temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), while maintaining a maximum of 32°C (90°F). Precipitation sharply decreases to just 17 mm (0.7 in) over 4 days, accompanied by lower humidity levels at 77%. For more details, visit Fortaleza weather in November.

In comparing the weather between January and December, both months feature tropical temperatures, but January tends to be slightly warmer. January has a minimum temperature of 24°C (75°F), with an average of 27°C (82°F) and reaching a maximum of 32°C (89°F), while December's temperatures range from a minimum of 24°C (76°F) to an average of 28°C (82°F) and a maximum of 31°C (89°F). Additionally, January experiences more rainfall, with 83 mm (3.3 in) over 18 days, compared to December's 48 mm (1.9 in) over 12 days. Humidity levels are similar, with January at 84% and December slightly lower at 81%. For more detailed insights on December weather, visit Fortaleza weather in December.

Compare Fortaleza's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Fortaleza

January in Fortaleza is characterized by warm temperatures and considerable humidity, making it a distinct month compared to the rest of the year. With maximum temperatures reaching around 32°C (89°F) and an average of 27°C (82°F), visitors can expect a balmy atmosphere. However, the month is also marked by frequent rainfall, with nearly 18 days of precipitation contributing to a total of 83 mm (3.3 in). This blend of heat and humidity, along with intermittent showers, sets January apart, adding a vibrant yet unpredictable element to the tropical climate. For a deeper understanding of weather variations throughout the year, check out Fortaleza Climate.