Monthly climate in Santos, São Paulo, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Santos features a humid subtropical climate (Cfa). Temperatures typically range between 19 °C (67 °F) and 26 °C (79 °F) through the year, but rarely can drop to 11 °C (53 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1848 mm (72.8 inches) and receives 187 rainy days on the 1 mm (0.04 inches) threshold annually. Santos enjoys an average of 3300 hours of sunshine throughout the year, and daylight varies from 10 hours 39 minutes to 13 hours 34 minutes per day.

Monthly average temperatures in Santos, São Paulo, Brazil §

The warmest months in Santos are January, February and March, with daily mean temperatures ranging from 25 to 26 °C (77 - 79 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 19 to 21 °C (67 - 70 °F) throughout the day. On average each year, Santos experiences 121 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 Santos, São Paulo, 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 32°C
(90°F)
33°C
(91°F)
32°C
(90°F)
31°C
(89°F)
29°C
(84°F)
30°C
(86°F)
30°C
(86°F)
30°C
(87°F)
33°C
(92°F)
34°C
(93°F)
31°C
(87°F)
30°C
(87°F)
Mean maximum 31°C
(88°F)
30°C
(86°F)
30°C
(86°F)
29°C
(84°F)
27°C
(82°F)
27°C
(80°F)
29°C
(84°F)
27°C
(81°F)
31°C
(88°F)
29°C
(84°F)
28°C
(82°F)
29°C
(85°F)
Average high 27°C
(81°F)
26°C
(80°F)
26°C
(80°F)
24°C
(76°F)
23°C
(74°F)
23°C
(73°F)
22°C
(71°F)
21°C
(70°F)
22°C
(73°F)
23°C
(74°F)
23°C
(74°F)
25°C
(77°F)
Daily mean 26°C
(79°F)
25°C
(78°F)
25°C
(77°F)
23°C
(74°F)
22°C
(71°F)
21°C
(70°F)
20°C
(67°F)
19°C
(67°F)
21°C
(70°F)
22°C
(72°F)
22°C
(72°F)
24°C
(75°F)
Average low 25°C
(76°F)
24°C
(75°F)
24°C
(75°F)
22°C
(72°F)
20°C
(68°F)
19°C
(67°F)
18°C
(64°F)
18°C
(64°F)
19°C
(67°F)
21°C
(69°F)
21°C
(70°F)
23°C
(73°F)
Mean minimum 22°C
(72°F)
22°C
(72°F)
22°C
(71°F)
19°C
(67°F)
17°C
(63°F)
17°C
(63°F)
14°C
(57°F)
15°C
(59°F)
17°C
(63°F)
18°C
(65°F)
18°C
(65°F)
20°C
(68°F)
Minimum 21°C
(69°F)
21°C
(69°F)
21°C
(69°F)
19°C
(66°F)
15°C
(59°F)
15°C
(60°F)
11°C
(53°F)
14°C
(57°F)
15°C
(60°F)
17°C
(62°F)
17°C
(63°F)
19°C
(66°F)

Compare climate in Santos with other places

Compare temperature, precipitation, sunshine, UV index in Santos, São Paulo, Brazil with other places around the world.

Monthly average precipitation in Santos, São Paulo, Brazil §

Santos usually has the most precipitation in January, February and March, with an average of 19 rainy days and 221 mm (8.7 inches) of precipitation per month. The driest months in Santos are June, July and September. On average, 100 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santos, São Paulo, 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) 184 (7.2) 249 (9.8) 229 (9.0) 139 (5.5) 130 (5.1) 117 (4.6) 81 (3.2) 133 (5.3) 102 (4.0) 183 (7.2) 147 (5.8) 153 (6.0)
Average precipitation days (≥ 1 mm) 18 19 20 15 13 12 8 13 13 19 18 19

Monthly sunshine hours in Santos, São Paulo, Brazil §

The sunniest months in Santos are March, November and December, when the sun shines an average of 9 hours 53 minutes a day. Least sunny months in Santos: January, June and August receive an average of 8 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santos, São Paulo, 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 256 265 297 291 274 243 275 249 274 261 294 317
Mean daily daylight hours 13h 24m 12h 52m 12h 11m 11h 29m 10h 56m 10h 39m 10h 48m 11h 18m 11h 57m 12h 39m 13h 15m 13h 34m

Solar UV radiation in Santos, São Paulo, Brazil §

Santos experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure. May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Santos UV Index data.

Average daily maximum UV levels by month for Santos, São Paulo, 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) 15 14 12 11 8 6 6 9 11 13 14 15

Detailed Monthly Weather Insights for Santos, São Paulo, Brazil

Discover in-depth weather details for every month in Santos. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Santos's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.