January Weather in Goias, Brazil

Last updated: August 21, 2025

January in Goiás, Brazil presents a vibrant blend of warmth and moisture, with maximum temperatures reaching up to 35°C (96°F) and a comfortable average of 25°C (78°F). This month experiences considerable rainfall, totaling 153 mm (6.0 in) over approximately 16 days, contributing to an average humidity of 87%, which creates a lush and tropical atmosphere. Whether you’re exploring the lush landscapes or enjoying local festivals, January's weather offers a captivating experience filled with the essence of a Brazilian summer.

January Temperature in Goias

In January, Goiás, Brazil experiences a warm and inviting climate, with temperatures ranging from a comfortable 20°C (68°F) at night to a sweltering 35°C (96°F) during the day, resulting in an average of 25°C (78°F). This month sets the tone for the summer, as the region gradually warms up; February mirrors January with similar temperatures but adds a slight increase in daytime heat, peaking at 36°C (97°F). As the months progress into autumn, the min and max temperatures start to dip, particularly in May and July, where nighttime lows drop to the cooler 9°C (48°F). Conversely, September and October showcase further climbs in temperatures, introducing the region’s highest peaks at 40°C (104°F) and 41°C (106°F). Thus, the trend reveals a hot tropical feel in January that transitions into milder temperatures as the year unfolds but often returns to oppressive heat, particularly in the late months.

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

The chart illustrates January temperature patterns in Goias, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Goias, 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).
JanFebMarAprMayJunJulAugSepOctNovDec787777777575747984827877
Data source: Temperature data for Goias generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Goias

In January, Goiás, Brazil experiences considerable rainfall, with a total precipitation of 153 mm (6.0 in) spread over 16 days. This sets the stage for a wet season, as precipitation gradually peaks in the following months. February sees a notable increase to 223 mm (8.8 in), followed by March at 176 mm (6.9 in), showcasing a trend of high rainfall during the early part of the year. As the months progress, however, rainfall significantly diminishes, dropping to a mere 10 mm (0.4 in) in May and completely ceasing from June to August. The contrast is stark, with the dry season giving way to a resurgence in precipitation come November, where 190 mm (7.5 in) falls, culminating in December's hefty total of 254 mm (10.0 in). This pattern highlights the dynamic climate of Goiás, where early wetness is succeeded by distinctive dry spells before the cycle of abundant rain returns.

January Precipitation Trends in Goias

The chart displays monthly precipitation patterns in Goias, 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 Goias, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec15322317692100016104190254
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Goias

In January, the humidity in Goiás, Brazil reaches a notable 87%, setting the stage for a month characterized by a tropical and moist atmosphere. As the year progresses into February and March, humidity levels climb slightly to 89%, maintaining a consistently humid environment that softens the transition into the drier months. By April, humidity decreases to 83%, heralding the start of a gradual decline that continues through the year. The dry season peaks in the mid-summer months, with July and August witnessing the lowest humidity levels at 53% and 43%, respectively. As the year turns toward the end, the humidity begins to rise again, peaking in November at 61% before closing the year with December returning to a lush 84%. This annual cycle illustrates an intriguing trend: Goiás experiences its highest humidity during the early months and late rainy season, while the middle of the year boasts significant dryness.

January Average Humidity in Goias

This chart illustrates the average monthly humidity levels in Goias, 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 Goias is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%89%89%83%68%60%53%43%33%29%61%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Goias

In January, Goiás, Brazil, experiences an intense UV Index of 15, signaling an extreme exposure category with a recommended burn time of just 10 minutes. This high level of UV radiation persists into February, where the index peaks at 16, remaining in the extreme category. As the months progress, the UV levels slightly decline in March and April, though still categorized as extreme. From May to July, the UV index settles between 9 and 10, shifting to a very high exposure category, allowing for a slightly longer burn time of 15 minutes. However, as the year winds down, the intensity surges again in late summer, with November and December both registering an extreme index of 15 and 16, respectively. These trends underline the importance of sun protection in Goiás throughout the year. For more detailed information, visit the Goias UV Index.

Maximum UV Index Levels in Goias for January

The chart shows the monthly maximum UV Index (UVI) for Goias 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 Goias typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1516141210991112141516
Data source: Goias 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 Goias

In January, Goiás, Brazil, basks in approximately 247 hours of sunshine, marking the start of the year with a warm, inviting glow. As the months roll on, the sun's embrace intensifies, peaking in July and August with an impressive 332 hours of radiant daylight. This trend of increasing sunshine continues through May and June, where 326 and 315 hours respectively create a vibrant summer atmosphere. Interestingly, as winter approaches, the sunshine gradually tapers off, with November and December recording 278 and 284 hours, respectively. Overall, Goiás experiences a delightful spectrum of sunlight throughout the year, ensuring ample opportunities for both relaxation and exploration under the Brazilian sun.

Monthly Sunshine Duration in Goias: January Highlighted

The January sunshine duration represents the total number of hours Goias 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.
JanFebMarAprMayJunJulAugSepOctNovDec247h256h295h308h326h315h332h332h328h325h278h284h
Data source: Goias January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Goias During January

In Goias, Brazil, the likelihood of experiencing sunny weather in January is relatively low, sitting at just 17%. This trend of limited sunshine continues into February, where the probability rises slightly to 21%. However, as the seasons shift, there is a noticeable upward trajectory in sunny days, with March bringing a 26% chance. The months that follow showcase a significant improvement, with April and May soaring to 45% and 55% respectively, indicating a transition to more favorable conditions. By June, the likelihood of sun reaches 64%, setting the stage for the peak of sunshine in July at an impressive 95%. This sunny trend then gradually tapers off into late summer and autumn, evidenced by August and September at 67% and 73%, before plummeting again in the final months of the year. Overall, January may not boast much sunlight, but the increase in the subsequent months promises brighter days ahead.

Percentage of Sunny Days in January in Goias

The chart illustrates the percentage of sunny days in Goias 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 Goias experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%21%26%45%55%64%95%67%73%30%9%23%
Data source: Goias January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Goias in January

In Goias, Brazil, January marks the peak of daylight with a generous 12 hours of sunshine, a trend that continues through February and March, providing ample time for outdoor exploration. As the months progress into April, the daylight begins to wane slightly, settling at 11 hours until August. This drop hints at the region's transition into a cooler season. However, come September, daylight makes a resurgence, returning to 12 hours, and maintaining that glow through October and November. Interestingly, December surprises residents with an increase to 13 hours, casting a warm light on the holiday season. Overall, the data reflects a rhythmic pattern of daylight that complements the region's distinct seasonal changes, fostering a dynamic environment for both locals and visitors alike.

Average Daylight Hours in Goias for January

The chart illustrates the variation in daylight duration in Goias throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 56m12h 35m12h 9m11h 42m11h 21m11h 10m11h 16m11h 35m12h12h 27m12h 50m13h 2m
Data source: Goias daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Goias

In January, Goiás, Brazil experiences a gentle breeze with an average wind speed of 1.6 m/s (4 mph), setting a tranquil tone for the beginning of the year. This steady wind characterizes the early months, with February and March maintaining the same mild conditions. As the year progresses into April, a slight increase to 1.9 m/s (4 mph) hints at the approaching change of seasons. The winds pick up further during the mid-year months, peaking in July and August at 2.6 m/s (6 mph), which adds a refreshing lift to the warm Brazilian sun. However, as summer wanes towards November and December, wind speeds return to their initial calm, showcasing a yearly rhythm that beautifully balances tranquil moments with invigorating breezes.

Average January Wind Speed in Goias

The chart displays monthly wind speed patterns in Goias, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.6 m/s1.61.61.92.22.42.62.62.22.11.61.7
Data source: Goias January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Goias Compares to Other Months

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

In January, the weather features temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). During this month, there is a notable amount of precipitation, totaling 153 mm (6.0 in) over 16 days, contributing to a high humidity level of 87%. In contrast, February experiences slightly warmer conditions, with temperatures reaching a maximum of 36°C (97°F), while maintaining the same minimum and average temperatures as January. Precipitation also increases significantly in February, amounting to 223 mm (8.8 in) over 23 days, leading to an even higher humidity of 89%. For more detailed insights into February weather, check out Goias weather in February.

In January, the weather typically features a minimum temperature of 20°C (68°F) and an average of 25°C (78°F), with highs reaching up to 35°C (96°F). This month sees significant rainfall, with 153 mm (6.0 in) spread over 16 days and high humidity levels of 87%. Conversely, March experiences slightly cooler minimum temperatures at 18°C (64°F), while maintaining the same average of 25°C (78°F) and similar maximums at 35°C (94°F). Rainfall increases to 176 mm (6.9 in), occurring over 23 days, and humidity rises marginally to 89%. For a more detailed look at conditions during this month, check out Goias weather in March.

January's weather is characterized by warmer temperatures, with a minimum of 20°C and a maximum reaching up to 35°C, while April sees slightly cooler conditions with a minimum of 15°C. Both months share a similar average temperature of 25°C. Precipitation is notably higher in January, with 153 mm over 16 days compared to April's 92 mm over 14 days, contributing to a more humid environment in January at 87% humidity versus April's 83%. For more detailed insights on April's climate, you can check Goias weather in April.

In January, the weather is characterized by warm temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (96°F), with an average temperature of 25°C (78°F). This month sees significant rainfall, with 153 mm (6.0 in) over approximately 16 days and high humidity at 87%. In contrast, May offers a much cooler climate, with temperatures dropping to a minimum of 9°C (48°F) and peaking at 33°C (92°F), maintaining an average of 24°C (76°F). Rainfall is significantly reduced in May, totaling only 10 mm (0.4 in) across just 2 days, and humidity levels also drop to a more comfortable 68%. For more detailed insights on the weather in May, visit Goias weather in May.

In January, the weather is characterized by warm temperatures, with a minimum of 20°C (68°F) and an average of 25°C (78°F), peaking at a maximum of 35°C (96°F). The month is also marked by significant precipitation, totaling 153 mm (6.0 in) over 16 rainy days, accompanied by high humidity levels at 87%. In contrast, June experiences cooler conditions, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 33°C (92°F) and an average temperature of 24°C (75°F). Notably, June sees no rainfall, with zero days of precipitation and a more comfortable humidity level of 60%. For more details, you can check Goias weather in June.

In January, the weather is significantly warmer, with temperatures ranging from a minimum of 20°C (68°F) to a sweltering maximum of 35°C (96°F) and an average of 25°C (78°F). This month also experiences high humidity at 87% and sees considerable precipitation of 153 mm (6.0 in) over 16 days. In contrast, July features much cooler temperatures, with a minimum of 9°C (49°F), an average of 23°C (74°F), and a max of 33°C (91°F). Remarkably, July is dry, receiving no precipitation at all and featuring only 53% humidity. For more detailed insights, check Goias weather in July.

In January, temperatures in Goias range from a minimum of 20°C (68°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). The month is characterized by high humidity at 87%, and significant rainfall is common, totaling 153 mm (6.0 in) over approximately 16 days. Conversely, August experiences slightly cooler temperatures, with a minimum of 16°C (61°F) and a maximum reaching 37°C (99°F), while the average stands at 26°C (79°F). The weather is markedly drier in August, with barely any rainfall (1 mm or 0.0 in) and humidity dropping to 43%. For more detailed weather information, you can check Goias weather in August.

In January, the weather is characterized by warm temperatures, with a minimum of 20°C (68°F) and an average of 25°C (78°F), reaching a maximum of 35°C (96°F). During this month, the region experiences significant rainfall, totaling 153 mm (6.0 in) over 16 days, contributing to a high humidity level of 87%. In contrast, September sees much hotter temperatures, with a minimum of 17°C (62°F) and an average rising to 29°C (84°F), peaking at a sweltering 40°C (104°F). Remarkably, September is much drier, recording only 6 mm (0.2 in) of precipitation over just 1 day, which leads to a dramatic drop in humidity to 33%. For more information about the weather patterns in this month, you can check Goias weather in September.

In January, the weather features a minimum temperature of 20°C (68°F) and an average of 25°C (78°F), with highs reaching up to 35°C (96°F). The month is characterized by significant rainfall, receiving 153 mm (6.0 in) across 16 days, and high humidity levels at 87%. In contrast, October experiences slightly cooler mornings with a minimum of 18°C (64°F) and an increased average temperature of 28°C (82°F), soaring up to a high of 41°C (106°F). October sees less precipitation, totaling 104 mm (4.1 in) over 13 days, and a much lower humidity level at 28%. For more detailed information, you can view Goias weather in October.

January and November share similar average temperatures, both hovering around 25°C (78°F). However, January typically experiences slightly higher maximum temperatures, reaching up to 35°C (96°F), compared to November's peak of 36°C (96°F). In terms of precipitation, January averages 153 mm (6.0 in) over 16 days, while November sees an increase in rainfall to 190 mm (7.5 in) spread over 23 days, making it a wetter month overall. Additionally, January is marked by higher humidity levels at 87%, contrasted with November's relatively lower humidity of 61%. For more details, you can check Goias weather in November.

In January, the weather remains quite warm, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 35°C (96°F), mirroring December’s averages. However, January experiences significantly less precipitation, totaling 153 mm (6.0 in) over 16 rainy days, compared to December’s 254 mm (10.0 in) and 23 days of rain. While January sees a slight increase in minimum temperature and humidity (87% compared to December's 84%), overall, both months maintain similar warmth but differ notably in rainfall. For a more detailed look at December conditions, you can visit Goias weather in December.

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Conclusion: What to Expect From January Weather in Goias

In January, Goias embraces a warm and humid atmosphere, marked by higher temperatures and notable rainfall compared to other months. While maximum daytime heat can soar, the average warmth offers a comfortable respite. This month sees frequent precipitation, contributing to lush landscapes but also creating an undeniably humid environment that can feel intense. Fans of green scenery and vibrant ecosystems will find this weather transition refreshing. For a deeper dive into what to expect throughout the year, check out Goias Climate.