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Monthly climate in Sao Tome, Rio Grande do Norte, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sao Tome features a hot semi-arid climate (BSh).Temperatures typically range between 24 °C (76 °F) and 27 °C (82 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 489 mm (19.3 inches) and receives 89 rainy days on the 1 mm (0.04 inches) threshold annually.Sao Tome enjoys an average of 3870 hours of sunshine throughout the year, and daylight varies from 11 hours 46 minutes to 12 hours 26 minutes per day.

Monthly average temperatures in Sao Tome, Rio Grande do Norte, Brazil §

The warmest months in Sao Tome are January, November and December, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 24 to 25 °C (76 - 78 °F) throughout the day. On average each year, Sao Tome experiences 328 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 Sao Tome, Rio Grande do Norte, Brazil.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 37°C
(99°F)		 35°C
(96°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(92°F)		 33°C
(91°F)		 33°C
(92°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(95°F)		 35°C
(96°F)
Mean maximum 35°C
(96°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 33°C
(91°F)		 31°C
(89°F)		 32°C
(89°F)		 33°C
(91°F)		 33°C
(92°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(95°F)
Average high 33°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(88°F)		 30°C
(87°F)		 30°C
(86°F)		 29°C
(85°F)		 31°C
(87°F)		 32°C
(89°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(92°F)
Daily mean 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(80°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(76°F)		 25°C
(77°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(82°F)
Average low 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 23°C
(74°F)		 22°C
(73°F)		 21°C
(71°F)		 21°C
(69°F)		 21°C
(69°F)		 21°C
(70°F)		 22°C
(72°F)		 23°C
(74°F)		 23°C
(74°F)
Mean minimum 22°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(71°F)		 21°C
(70°F)		 20°C
(69°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(69°F)		 21°C
(71°F)		 22°C
(72°F)
Minimum 21°C
(70°F)		 20°C
(69°F)		 22°C
(72°F)		 21°C
(70°F)		 20°C
(68°F)		 19°C
(67°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(66°F)		 20°C
(68°F)		 20°C
(69°F)		 21°C
(70°F)

Compare climate in Sao Tome with other places

Compare temperature, precipitation, sunshine, UV index in Sao Tome, Rio Grande do Norte, Brazil with other places around the world.

Monthly average precipitation in Sao Tome, Rio Grande do Norte, Brazil §

Sao Tome usually has the most precipitation in February, March and April, with an average of 16 rainy days and 84 mm (3.3 inches) of precipitation per month.The driest months in Sao Tome are August, September and November. On average, 9 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sao Tome, Rio Grande do Norte, Brazil.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) 34 (1.3) 80 (3.1) 98 (3.9) 75 (2.9) 63 (2.5) 33 (1.3) 52 (2.1) 8 (0.3) 8 (0.3) 11 (0.4) 10 (0.4) 18 (0.7)
Average precipitation days (≥ 1 mm) 7 14 18 16 11 5 6 1 1 2 2 6

Monthly sunshine hours in Sao Tome, Rio Grande do Norte, Brazil §

The sunniest months in Sao Tome are October, November and December, when the sun shines an average of 11 hours 18 minutes a day.Least sunny months in Sao Tome: January, February and April receive an average of 9 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sao Tome, Rio Grande do Norte, Brazil.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 274 296 328 306 319 314 317 341 330 346 344 349
Mean daily daylight hours 12h 24m 12h 16m 12h 7m 11h 57m 11h 49m 11h 46m 11h 47m 11h 54m 12h 3m 12h 13m 12h 22m 12h 26m

Solar UV radiation in Sao Tome, Rio Grande do Norte, Brazil §

Sao Tome experiences the highest level of ultraviolet (UV) radiation in March, April and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Sao Tome UV Index data.

Average daily maximum UV levels by month for Sao Tome, Rio Grande do Norte, Brazil.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) 14 14 15 14 13 11 11 12 13 13 14 14