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Monthly climate in San Clemente, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Clemente features a oceanic climate (Cfb). Temperatures typically range between 15 °C (59 °F) and 22 °C (73 °F) through the year, but rarely can drop to 1 °C (33 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1701 mm (67.0 inches) and receives 208 rainy days on the 1 mm (0.04 inches) threshold annually. San Clemente enjoys an average of 3273 hours of sunshine throughout the year, and daylight varies from 10 hours 54 minutes to 13 hours 20 minutes per day.

Monthly average temperatures in San Clemente, Mexico

The warmest months in San Clemente are May, June and August, with daily mean temperatures ranging from 22 to 22 °C (72 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 16 °C (59 - 62 °F) throughout the day. On average each year, San Clemente experiences 163 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 Clemente. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(85°F)		31°C
(89°F)		32°C
(90°F)		33°C
(92°F)		33°C
(91°F)		33°C
(91°F)		29°C
(85°F)		29°C
(84°F)		30°C
(86°F)		30°C
(85°F)		27°C
(82°F)		28°C
(82°F)
Mean maximum27°C
(81°F)		28°C
(83°F)		30°C
(87°F)		32°C
(89°F)		31°C
(88°F)		30°C
(87°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		27°C
(80°F)		26°C
(79°F)
Average high20°C
(68°F)		22°C
(72°F)		24°C
(75°F)		26°C
(79°F)		27°C
(81°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		22°C
(72°F)		21°C
(69°F)
Daily mean15°C
(59°F)		16°C
(62°F)		18°C
(65°F)		21°C
(69°F)		22°C
(73°F)		22°C
(72°F)		22°C
(71°F)		22°C
(72°F)		21°C
(71°F)		20°C
(68°F)		17°C
(63°F)		15°C
(60°F)
Average low11°C
(51°F)		12°C
(54°F)		14°C
(57°F)		16°C
(61°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		18°C
(65°F)		16°C
(62°F)		13°C
(56°F)		11°C
(51°F)
Mean minimum5°C
(41°F)		6°C
(43°F)		9°C
(49°F)		11°C
(52°F)		15°C
(59°F)		16°C
(61°F)		16°C
(61°F)		16°C
(61°F)		15°C
(59°F)		12°C
(54°F)		8°C
(46°F)		5°C
(41°F)
Minimum4°C
(39°F)		3°C
(38°F)		5°C
(42°F)		9°C
(49°F)		13°C
(56°F)		14°C
(58°F)		15°C
(59°F)		14°C
(57°F)		12°C
(55°F)		10°C
(51°F)		3°C
(37°F)		1°C
(33°F)

Compare climate in San Clemente with other places

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

Monthly average precipitation in San Clemente, Mexico

San Clemente usually has the most precipitation in June, September and October, with an average of 23 rainy days and 240 mm (9.5 inches) of precipitation per month. The driest months in San Clemente are January, February and December. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Clemente. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)68 (2.7)59 (2.3)83 (3.3)93 (3.7)160 (6.3)219 (8.6)158 (6.2)209 (8.2)235 (9.2)267 (10.5)102 (4.0)47 (1.9)
Average precipitation days (≥ 1 mm)11111212192526272520128

Monthly sunshine hours in San Clemente, Mexico

The sunniest months in San Clemente are May, July and August, when the sun shines an average of 9 hours 55 minutes a day. Least sunny months in San Clemente: January, February and November receive an average of 7 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Clemente. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours206246290297319283306297264253244263
Mean daily daylight hours11h 2m11h 28m12h 2m12h 36m13h 5m13h 20m13h 12m12h 46m12h 13m11h 38m11h 9m10h 54m

Solar UV radiation in San Clemente, Mexico

San Clemente experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the 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 Clemente UV Index data.

Average daily maximum UV levels by month for San Clemente. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)811131414141414131298