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Monthly climate in San Francisco, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Francisco features a tropical savanna climate (As). Temperatures typically range between 23 °C (74 °F) and 29 °C (84 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 32 °C (89 °F). The average annual precipitation amounts to about 969 mm (38.1 inches) and receives 95 rainy days on the 1 mm (0.04 inches) threshold annually. San Francisco enjoys an average of 3489 hours of sunshine throughout the year, and daylight varies from 10 hours 52 minutes to 13 hours 22 minutes per day.

Monthly average temperatures in San Francisco, Mexico

The warmest months in San Francisco are July, August and September, with daily mean temperatures ranging from 28 to 29 °C (83 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 23 to 24 °C (74 - 75 °F) throughout the day. On average each year, San Francisco experiences 218 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 San Francisco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)		27°C
(81°F)		26°C
(78°F)		26°C
(79°F)		28°C
(82°F)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		31°C
(88°F)		32°C
(89°F)		31°C
(88°F)		29°C
(85°F)
Mean maximum26°C
(79°F)		25°C
(78°F)		25°C
(77°F)		26°C
(79°F)		27°C
(81°F)		29°C
(84°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		31°C
(88°F)		30°C
(86°F)		28°C
(82°F)
Average high24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		25°C
(76°F)		26°C
(79°F)		28°C
(82°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		29°C
(85°F)		28°C
(82°F)		26°C
(78°F)
Daily mean24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		24°C
(76°F)		25°C
(78°F)		27°C
(81°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		27°C
(81°F)		25°C
(77°F)
Average low23°C
(73°F)		22°C
(73°F)		23°C
(73°F)		23°C
(75°F)		25°C
(77°F)		26°C
(80°F)		28°C
(82°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		24°C
(76°F)
Mean minimum20°C
(69°F)		21°C
(69°F)		21°C
(71°F)		22°C
(71°F)		23°C
(74°F)		25°C
(77°F)		26°C
(78°F)		26°C
(78°F)		26°C
(79°F)		26°C
(78°F)		24°C
(75°F)		21°C
(71°F)
Minimum18°C
(65°F)		19°C
(67°F)		21°C
(70°F)		21°C
(69°F)		22°C
(72°F)		24°C
(75°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		21°C
(71°F)		18°C
(66°F)

Compare climate in San Francisco with other places

Compare temperature, precipitation, sunshine, UV index in San Francisco, Mexico with other places around the world.

Monthly average precipitation in San Francisco, Mexico

San Francisco usually has the most precipitation in August, September and October, with an average of 21 rainy days and 229 mm (9.0 inches) of precipitation per month. The driest months in San Francisco are March, April and May. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Francisco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)23 (0.9)22 (0.9)0 (0.0)0 (0.0)3 (0.1)67 (2.6)130 (5.1)225 (8.9)266 (10.5)197 (7.7)19 (0.8)15 (0.6)
Average precipitation days (≥ 1 mm)1200091622231822

Monthly sunshine hours in San Francisco, Mexico

The sunniest months in San Francisco are April, May and July, when the sun shines an average of 10 hours 49 minutes a day. Least sunny months in San Francisco: January, February and September receive an average of 8 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Francisco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours222260317326349317318277263274283276
Mean daily daylight hours11h 0m11h 27m12h 2m12h 37m13h 7m13h 22m13h 14m12h 47m12h 13m11h 37m11h 7m10h 52m

Solar UV radiation in San Francisco, Mexico

San Francisco experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly San Francisco UV Index data.

Average daily maximum UV levels by month for San Francisco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)810121313131213121197