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January Weather in Sao Tome, Brazil

Last updated: August 22, 2025

The average temperature in Sao Tome, Brazil during January is a warm 27°C (81°F). Expect minimum temperatures around 21°C (70°F) and soaring maximums of 37°C (99°F). During this month, you can anticipate precipitation totaling 34 mm (1.3 in) over approximately 7 days. The air is quite humid, with an average humidity level of 86%.

January Temperature in Sao Tome

In January in Sao Tome, the average temperature is 27°C (81°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 21°C (70°F). This climate makes Sao Tome an ideal destination for travelers seeking warm weather and sunny days.

January Weather in Sao Tome: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sao Tome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Tome, January typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (99°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec818180797977767778808181
Data source: Temperature data for Sao Tome 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 Sao Tome

In Sao Tome in January, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

January Precipitation Trends in Sao Tome

The chart displays monthly precipitation patterns in Sao Tome, 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 Sao Tome, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec3480987563335288111118
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Sao Tome

In Sao Tome in January, humidity is 86%. With an average temperature of 27°C (81°F), this humidity feels like walking through a steamy blanket, making traveling feel heavy and exhausting as each step absorbs the warm, moist air.

January Average Humidity in Sao Tome

This chart illustrates the average monthly humidity levels in Sao Tome, 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 Sao Tome is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%90%89%90%86%80%77%72%68%66%70%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Sao Tome

In Sao Tome in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Sao Tome, you can check here.

Maximum UV Index Levels in Sao Tome for January

The chart shows the monthly maximum UV Index (UVI) for Sao Tome 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 Sao Tome typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141311111213131414
Data source: Sao Tome 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.

How January Weather in Sao Tome Compares to Other Months

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

This table compares monthly weather conditions in Sao Tome, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)34 mm (1.3 inches)86%extreme
February Weather27°C (81°F)80 mm (3.1 inches)89%extreme
March Weather27°C (80°F)98 mm (3.9 inches)89%extreme
April Weather26°C (80°F)75 mm (2.9 inches)89%extreme
May Weather26°C (79°F)63 mm (2.5 inches)90%extreme
June Weather25°C (78°F)33 mm (1.3 inches)86%extreme
July Weather24°C (76°F)52 mm (2.1 inches)80%extreme
August Weather25°C (77°F)8 mm (0.3 inches)77%extreme
September Weather26°C (79°F)8 mm (0.3 inches)72%extreme
October Weather27°C (80°F)11 mm (0.4 inches)68%extreme
November Weather27°C (81°F)10 mm (0.4 inches)66%extreme
December Weather27°C (82°F)18 mm (0.7 inches)70%extreme

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