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Monthly climate in San Andres, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Andres features a cold semi-arid climate (BSk). Temperatures typically range between 8 °C (47 °F) and 25 °C (77 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 399 mm (15.7 inches) and receives 60 rainy days on the 1 mm (0.04 inches) threshold annually. San Andres enjoys an average of 3625 hours of sunshine throughout the year, and daylight varies from 10 hours 20 minutes to 13 hours 55 minutes per day.

Monthly average temperatures in San Andres, Mexico

The warmest months in San Andres are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (47 - 51 °F) throughout the day. On average each year, San Andres experiences 159 days above 25 °C (77.0 °F) and 28 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 Andres. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum24°C
(76°F)		28°C
(83°F)		31°C
(87°F)		31°C
(88°F)		35°C
(95°F)		37°C
(98°F)		35°C
(95°F)		33°C
(92°F)		31°C
(87°F)		30°C
(86°F)		27°C
(81°F)		24°C
(75°F)
Mean maximum22°C
(73°F)		25°C
(76°F)		28°C
(83°F)		30°C
(86°F)		34°C
(93°F)		35°C
(96°F)		33°C
(92°F)		31°C
(89°F)		29°C
(85°F)		28°C
(83°F)		26°C
(79°F)		23°C
(73°F)
Average high17°C
(62°F)		19°C
(66°F)		23°C
(73°F)		26°C
(79°F)		30°C
(86°F)		32°C
(89°F)		29°C
(84°F)		28°C
(82°F)		26°C
(79°F)		24°C
(76°F)		21°C
(70°F)		17°C
(62°F)
Daily mean8°C
(47°F)		11°C
(51°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		25°C
(77°F)		23°C
(73°F)		22°C
(72°F)		20°C
(68°F)		17°C
(63°F)		13°C
(56°F)		9°C
(48°F)
Average low1°C
(34°F)		3°C
(38°F)		6°C
(44°F)		10°C
(50°F)		13°C
(56°F)		17°C
(63°F)		17°C
(63°F)		17°C
(62°F)		14°C
(58°F)		11°C
(52°F)		6°C
(43°F)		2°C
(36°F)
Mean minimum-5°C
(23°F)		-3°C
(27°F)		-1°C
(31°F)		4°C
(40°F)		8°C
(47°F)		13°C
(56°F)		15°C
(59°F)		13°C
(56°F)		10°C
(50°F)		2°C
(36°F)		-0°C
(31°F)		-5°C
(24°F)
Minimum-6°C
(21°F)		-7°C
(20°F)		-3°C
(26°F)		3°C
(37°F)		5°C
(40°F)		11°C
(52°F)		14°C
(57°F)		10°C
(50°F)		8°C
(47°F)		-2°C
(28°F)		-5°C
(23°F)		-7°C
(19°F)

Compare climate in San Andres with other places

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

Monthly average precipitation in San Andres, Mexico

San Andres usually has the most precipitation in July, August and September, with an average of 13 rainy days and 93 mm (3.6 inches) of precipitation per month. The driest months in San Andres are February, April and May. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Andres. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)8 (0.3)4 (0.2)6 (0.2)3 (0.1)5 (0.2)31 (1.2)107 (4.2)93 (3.7)78 (3.1)33 (1.3)16 (0.6)14 (0.6)
Average precipitation days (≥ 1 mm)212114141312622

Monthly sunshine hours in San Andres, Mexico

The sunniest months in San Andres are May, June and July, when the sun shines an average of 11 hours 34 minutes a day. Least sunny months in San Andres: January, February and November receive an average of 8 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Andres. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours221259303325365351348335294290263264
Mean daily daylight hours10h 32m11h 11m12h 0m12h 51m13h 34m13h 55m13h 43m13h 5m12h 17m11h 26m10h 42m10h 20m

Solar UV radiation in San Andres, Mexico

San Andres experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 13 - 14, 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 8. For more detailed information, check out our hourly San Andres UV Index data.

Average daily maximum UV levels by month for San Andres. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)69111314131313121086