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Monthly climate in Santo Antonio, Sao Tome and Principe

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Santo Antonio features a tropical rainforest climate (Af).Temperatures typically range between 25 °C (78 °F) and 28 °C (82 °F) through the year, but rarely can drop to 24 °C (76 °F) or can rise to as high as 30 °C (86 °F).The average annual precipitation amounts to about 2116 mm (83.3 inches) and receives 262 rainy days on the 1 mm (0.04 inches) threshold annually.Santo Antonio enjoys an average of 3178 hours of sunshine throughout the year, and daylight varies from 12 hours 1 minutes to 12 hours 12 minutes per day.

Monthly average temperatures in Santo Antonio, Sao Tome and Principe §

The warmest months in Santo Antonio are February, March and April, with daily mean temperatures ranging from 28 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 25 to 26 °C (78 - 78 °F) throughout the day. On average each year, Santo Antonio experiences 327 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Santo Antonio, Sao Tome and Principe.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(85°F)		 28°C
(83°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)
Mean maximum 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 28°C
(82°F)		 27°C
(80°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)
Average high 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(79°F)		 26°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(82°F)
Daily mean 27°C
(81°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(81°F)		 26°C
(80°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)		 26°C
(80°F)		 27°C
(80°F)
Average low 26°C
(79°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(79°F)
Mean minimum 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)
Minimum 25°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)

Compare climate in Santo Antonio with other places

Compare temperature, precipitation, sunshine, UV index in Santo Antonio, Sao Tome and Principe with other places around the world.

Monthly average precipitation in Santo Antonio, Sao Tome and Principe §

Santo Antonio usually has the most precipitation in September, October and November, with an average of 25 rainy days and 268 mm (10.6 inches) of precipitation per month.The driest months in Santo Antonio are January, February and August. On average, 102 mm (4.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santo Antonio, Sao Tome and Principe.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 101 (4.0) 96 (3.8) 159 (6.2) 194 (7.6) 212 (8.4) 156 (6.2) 111 (4.4) 111 (4.4) 259 (10.2) 286 (11.2) 261 (10.3) 172 (6.8)
Average precipitation days (≥ 1 mm) 20 18 21 20 24 20 16 18 24 28 25 28

Monthly sunshine hours in Santo Antonio, Sao Tome and Principe §

The sunniest months in Santo Antonio are July, August and December, when the sun shines an average of 9 hours 1 minutes a day.Least sunny months in Santo Antonio: January, May and June receive an average of 8 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santo Antonio, Sao Tome and Principe.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 252 262 268 259 255 250 268 280 267 265 258 289
Mean daily daylight hours 12h 1m 12h 3m 12h 5m 12h 8m 12h 10m 12h 12m 12h 11m 12h 9m 12h 6m 12h 3m 12h 1m 12h 1m

Solar UV radiation in Santo Antonio, Sao Tome and Principe §

Santo Antonio experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure.June, July and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Santo Antonio UV Index data.

Average daily maximum UV levels by month for Santo Antonio, Sao Tome and Principe.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 12 12 14 14 13 11 10 11 13 13 12 11