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May Weather in Sao Tome, Brazil

Last updated: August 22, 2025

In Sao Tome, Brazil, the average temperature in May typically hovers around 26°C (79°F). This pleasant climate can see minimums of 20°C (68°F) and occasional peaks at 34°C (94°F). Be prepared for some rain, as the area experiences about 63 mm (2.5 in) of precipitation over 11 days. With an average humidity level of 90%, it's the perfect time to enjoy the warmth while staying hydrated!

May Temperature in Sao Tome

In May in Sao Tome, the average temperature is 26°C (79°F), with maximums reaching 34°C (94°F) and minimums dipping as low as 20°C (68°F). This pleasant climate makes Sao Tome an ideal destination for travelers looking to escape to warm and comfortable weather.

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

The chart illustrates May 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, May typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 20°C (68°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.

May Precipitation in Sao Tome

In Sao Tome in May, the precipitation amount is 63 mm (2.5 in) during a total of 11 days.

May Precipitation Trends in Sao Tome

The chart displays monthly precipitation patterns in Sao Tome, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Sao Tome, May typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec3480987563335288111118
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sao Tome

In Sao Tome in May, humidity is 90%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket wrapping around you, making travel feel sticky and draining, while every step requires extra effort in the sweltering embrace of the moist air.

May Average Humidity in Sao Tome

This chart illustrates the average monthly humidity levels in Sao Tome, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Sao Tome is approximately 90%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Sao Tome

In Sao Tome in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Sao Tome.

Maximum UV Index Levels in Sao Tome for May

The chart shows the monthly maximum UV Index (UVI) for Sao Tome in May, 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 May, the maximum UV index in Sao Tome typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141415141311111213131414
Data source: Sao Tome May 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 May 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 May’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 May’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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