January Weather in Sao Tome, Sao Tome and Principe

Last updated: August 31, 2025

In January, the average temperature in Sao Tome, Sao Tome and Principe hovers around a pleasant 27°C (80°F). Expect a minimum of 24°C (76°F) and a maximum of 28°C (83°F), making it a comfortable time to explore. However, be prepared for precipitation totaling 129 mm (5.1 in) over approximately 21 days, and a relative humidity of 75% adds a touch of tropical feel to your adventures!

January Temperature in Sao Tome

In January in Sao Tome, the average temperature is 27°C (80°F), with maximums reaching 28°C (83°F) and minimums dipping to 24°C (76°F). This mild climate makes it an ideal destination for travelers seeking warm and pleasant weather.

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 (80°F), with highs reaching up to 28°C (83°F) and lows dropping to around 24°C (76°F).

Data source: Temperature data for Sao Tome generated using information from the Copernicus Climate Change Service.

January Precipitation in Sao Tome

In Sao Tome in January, the total precipitation amount is 129 mm (5.1 in) over the course of 21 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 129 mm (5.1 inches) of precipitation spread over approximately 21 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Sao Tome

In Sao Tome in January humidity is 75%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as every step can leave you feeling sticky and in need of frequent hydration breaks.

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 75%, offering insight into how humid the weather typically is during this month.

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 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Sao Tome.

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 12, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	129 mm (5.1 inches)	75%	extreme
February Weather	27°C (81°F)	130 mm (5.1 inches)	75%	extreme
March Weather	27°C (81°F)	148 mm (5.8 inches)	73%	extreme
April Weather	27°C (81°F)	158 mm (6.2 inches)	74%	extreme
May Weather	27°C (80°F)	154 mm (6.1 inches)	75%	extreme
June Weather	25°C (78°F)	39 mm (1.5 inches)	76%	very high
July Weather	24°C (76°F)	17 mm (0.7 inches)	76%	very high
August Weather	24°C (76°F)	26 mm (1.0 inches)	83%	extreme
September Weather	25°C (77°F)	53 mm (2.1 inches)	86%	extreme
October Weather	26°C (79°F)	171 mm (6.7 inches)	85%	extreme
November Weather	26°C (79°F)	229 mm (9.0 inches)	81%	extreme
December Weather	26°C (80°F)	257 mm (10.1 inches)	76%	extreme