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Monthly climate in Sao Luis, Brazil

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sao Luis features a tropical savanna climate (Aw).Temperatures typically range between 26 °C (80 °F) and 28 °C (82 °F) through the year, but rarely can drop to 23 °C (74 °F) or can rise to as high as 31 °C (89 °F).The average annual precipitation amounts to about 2439 mm (96.0 inches) and receives 245 rainy days on the 1 mm (0.04 inches) threshold annually.Sao Luis enjoys an average of 3618 hours of sunshine throughout the year, and daylight varies from 11 hours 58 minutes to 12 hours 15 minutes per day.

Monthly average temperatures in Sao Luis, Brazil §

The warmest months in Sao Luis are August, October and November, with daily mean temperatures ranging from 27 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in February, March and April, when daily mean temperatures range from 26 to 27 °C (80 - 80 °F) throughout the day. On average each year, Sao Luis experiences 329 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 Luis, 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 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(87°F)		 31°C
(89°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(87°F)
Mean maximum 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(87°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(86°F)		 29°C
(85°F)		 30°C
(86°F)
Average high 28°C
(82°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)		 29°C
(84°F)
Daily mean 27°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(82°F)		 27°C
(82°F)		 27°C
(82°F)		 28°C
(82°F)		 27°C
(82°F)
Average low 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(80°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(80°F)
Mean minimum 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(76°F)		 25°C
(76°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(77°F)		 25°C
(77°F)
Minimum 24°C
(75°F)		 23°C
(74°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(75°F)

Compare climate in Sao Luis with other places

Compare temperature, precipitation, sunshine, UV index in Sao Luis, Brazil with other places around the world.

Monthly average precipitation in Sao Luis, Brazil §

Sao Luis usually has the most precipitation in February, March and April, with an average of 28 rainy days and 459 mm (18.1 inches) of precipitation per month.The driest months in Sao Luis are August, September and October. On average, 29 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sao Luis, 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) 217 (8.5) 427 (16.8) 483 (19.0) 469 (18.5) 298 (11.7) 161 (6.4) 107 (4.2) 37 (1.5) 21 (0.8) 29 (1.1) 73 (2.9) 117 (4.6)
Average precipitation days (≥ 1 mm) 25 27 30 29 27 26 22 11 5 8 12 23

Monthly sunshine hours in Sao Luis, Brazil §

The sunniest months in Sao Luis are July, August and October, when the sun shines an average of 11 hours 12 minutes a day.Least sunny months in Sao Luis: January, February and April receive an average of 8 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sao Luis, 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 237 237 258 247 292 319 342 348 337 350 329 317
Mean daily daylight hours 12h 14m 12h 10m 12h 6m 12h 2m 11h 59m 11h 58m 11h 58m 12h 1m 12h 4m 12h 9m 12h 13m 12h 15m

Solar UV radiation in Sao Luis, Brazil §

Sao Luis experiences the highest level of ultraviolet (UV) radiation in January, March and April, when the maximum UV index can reach values of 14 - 16, which corresponds to the Extreme category of sun exposure.June, July and October are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Sao Luis UV Index data.

Average daily maximum UV levels by month for Sao Luis, 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 16 15 13 12 11 13 13 13 13 13