The weather in May in Sao Tome and Principe

It's hot in May in Sao Tome and Principe with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 25°C and 26°C.

Looking for sun? May isn’t a good month to be in Sao Tome and Principe. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Sao Tome and Principe. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 37°C in 2023, Sao Tome and Principe reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 26°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 28°C.

Rainfall amount

In May, there is an average of 142 mm of precipitation, spread over 17 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in May for Sao Tome and Principe

Click on any day in May to get detailed info about the usual weather on that day in Sao Tome and Principe. Check out the historical temperatures and precipitation over the past 10 years on this day.

May weather comparison

  Sao Tome and Principe New York
Average temperature 30°C 22°C
Max. temperature 31°C 28°C
Min. temperature 25°C -5°C
Total precipitation 142 mm 105 mm
Rainy days 17 days 14 days

Start of May

The month of May starts in Sao Tome and Principe with hot temps, averaging around 31°C during the day and nights around 26°C.

Mid May

By mid-May, daytime temps stay steady at around 31°C, with nights around 26°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of May

By the end of May, the average daytime temperature in Sao Tome and Principe is around 30°C, while nighttime temps are about 26°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Sao Tome and Principe for all months and discover the best travel time

The climate in Sao Tome and Principe is based on weather data from São Tomé. Other spots might have different weather. You can check out all destinations in Sao Tome and Principe to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in May in Sao Tome and Principe. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in May in Sao Tome and Principe

Temperature in May in Sao Tome and Principe over the years

Precipitation charts

These charts show the average amount of precipitation in May in Sao Tome and Principe. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in May in Sao Tome and Principe

Total precipitation in May in Sao Tome and Principe over the years

Daily UV index in May in Sao Tome and Principe

This chart shows the average daily UV index in May in Sao Tome and Principe, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in May in Sao Tome and Principe

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Average weather in Sao Tome and Principe by month

Click on a month below to see detailed weather info for Sao Tome and Principe. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.