25 to 29°C
temperature
2677 hours
sunshine per day
1122 mm
rain
137 days
dry
228 days
rain
0 days
snow

Climate of São Tomé

São Tomé has a tropical savanna climate. It is warm every month with both a wet and dry season. The average annual temperature for São Tomé is 27° degrees and there is about 1120 mm of rain in a year. It is dry for 86 days a year with an average humidity of 80% and an UV-index of 7.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 25°C and 29°C
  • Night:the average nighttime temperature is between 24°C and 28°C
  • Sea temperature: the sea temperature is between 26°C and 30°C
  • Rain: it rains 228 days and there is a total of approximately 1122 mm rainfall
  • Sun hours: throughout the year there are 2677 sun hours
Maximum temperature: between 25°C and 29°C
Warmest month: 29°C in March
Coldest month: 25°C in July
Night temperature: between 24°C and 28°C
Sea temperature: between 26°C and 30°C
Dry days: 137 days
Days with rain: 228 days
Days with snow: 0 days
Total rain sum: 1122 mm
Hours of sunshine: 2677 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for São Tomé.

Precipitation graph

This graph shows the average amount of rainfall per month for São Tomé.

Climate table of São Tomé

In this climate table you can see at a glance what the average weather per month is for São Tomé. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for São Tomé might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 28 28 29 29 28 26 25 25 26 26 27 27
Night temp. (°C) 27 28 28 28 27 25 24 24 25 26 26 27
Water temp. (°C) 29 30 29 30 29 27 26 26 27 28 29 29
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 125 96 107 78 84 19 8 16 28 204 214 143
Days with rain 27 23 24 21 19 6 6 10 14 24 26 28
Dry days 4 5 7 9 12 24 25 21 16 7 4 3
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 9 9 9 9 8 6 6 5 5 7 7 8
Wind force (Bft) 2 3 3 2 3 3 3 3 3 3 3 2
UV-index 7 7 7 7 7 6 6 6 7 7 7 7

Best time to visit São Tomé

The best time to visit São Tomé in Sao Tome and Principe is from February and April through September. In this period you have a warm temperature and little precipitation. The highest average temperature in São Tomé is 29°C in March and the lowest is 25°C in July. The highest water temperature is 30°C and it does not get colder than 26°C.

Climate of São Tomé by month

What is the average climate in a given month for São Tomé? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

São Tomé weather experiences

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