April Weather in Sao Tome, Sao Tome and Principe

Last updated: August 31, 2025

In April, the average temperature in Sao Tome, Sao Tome and Principe hovers around 27°C (81°F), providing a warm climate for visitors. Expect temperatures to range from a minimum of 25°C (77°F) to a maximum of 29°C (84°F). However, be prepared for some rain, as 158 mm (6.2 in) of precipitation may fall over approximately 17 days. With an average humidity of 74%, the air can feel quite muggy, so stay hydrated and enjoy your time!

April Temperature in Sao Tome

In April in Sao Tome, the average temperature is 27°C (81°F). Maximums can reach 29°C (84°F), while minimums can drop to 25°C (77°F). This mild and pleasant weather makes Sao Tome an ideal destination for travelers seeking warmth and comfort.

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

The chart illustrates April 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, April typically has an average temperature of 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 25°C (77°F).

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

April Precipitation in Sao Tome

In Sao Tome in April, the total precipitation amount is 158 mm (6.2 in), occurring over the course of 17 days.

April Precipitation Trends in Sao Tome

The chart displays monthly precipitation patterns in Sao Tome, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Sao Tome, April typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 17 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Sao Tome

In Sao Tome in April humidity is 74%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket, making traveling feel both sticky and draining, yet the heat invites you to seek out refreshing dips in pools or shady spots to relax.

April Average Humidity in Sao Tome

This chart illustrates the average monthly humidity levels in Sao Tome, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Sao Tome is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Sao Tome

In Sao Tome in April, 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 April

The chart shows the monthly maximum UV Index (UVI) for Sao Tome in April, 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 April, the maximum UV index in Sao Tome typically reaches 14, which falls under the extreme exposure category.

Data source: Sao Tome April 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 April 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 April’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 April’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