April Weather in Santo Antonio, Sao Tome and Principe

Last updated: August 31, 2025

In April, the average temperature in Santo Antonio, Sao Tome and Principe hovers around 28°C (82°F). Daily temperatures can range from a minimum of 25°C (78°F) to a pleasant maximum of 29°C (85°F). However, be prepared for some rain, as 194 mm (7.6 in) of precipitation falls over 20 days during the month, accompanied by an average humidity of 74%.

April Temperature in Santo Antonio

In April in Santo Antonio, the average temperature is 28°C (82°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 25°C (78°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather.

April Weather in Santo Antonio: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Santo Antonio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Antonio, April typically has an average temperature of 28°C (82°F), with highs reaching up to 29°C (85°F) and lows dropping to around 25°C (78°F).

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

April Precipitation in Santo Antonio

In Santo Antonio in April, the precipitation amount is 194 mm (7.6 in) over the course of 20 days.

April Precipitation Trends in Santo Antonio

The chart displays monthly precipitation patterns in Santo Antonio, 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 Santo Antonio, April typically receives around 194 mm (7.6 inches) of precipitation spread over approximately 20 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Santo Antonio

In Santo Antonio in April, humidity is 74%. With an average temperature of 28°C (82°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities feel more exhausting and requiring frequent breaks to stay hydrated.

April Average Humidity in Santo Antonio

This chart illustrates the average monthly humidity levels in Santo Antonio, 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 Santo Antonio 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 Santo Antonio

In Santo Antonio 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 Santo Antonio, you can check here.

Maximum UV Index Levels in Santo Antonio for April

The chart shows the monthly maximum UV Index (UVI) for Santo Antonio 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 Santo Antonio typically reaches 14, which falls under the extreme exposure category.

Data source: Santo Antonio 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 Santo Antonio Compares to Other Months

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

This table compares monthly weather conditions in Santo Antonio, 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 (81°F)	101 mm (4.0 inches)	75%	extreme
February Weather	28°C (82°F)	96 mm (3.8 inches)	75%	extreme
March Weather	28°C (82°F)	159 mm (6.2 inches)	73%	extreme
April Weather	28°C (82°F)	194 mm (7.6 inches)	74%	extreme
May Weather	27°C (81°F)	212 mm (8.4 inches)	75%	extreme
June Weather	26°C (80°F)	156 mm (6.2 inches)	76%	extreme
July Weather	25°C (78°F)	111 mm (4.4 inches)	76%	very high
August Weather	25°C (78°F)	111 mm (4.4 inches)	83%	extreme
September Weather	26°C (78°F)	259 mm (10.2 inches)	86%	extreme
October Weather	26°C (79°F)	286 mm (11.2 inches)	85%	extreme
November Weather	26°C (80°F)	261 mm (10.3 inches)	81%	extreme
December Weather	27°C (80°F)	172 mm (6.8 inches)	76%	extreme