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Monthly climate in San Rafael, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Rafael features a hot semi-arid climate (BSh). Temperatures typically range between 13 °C (55 °F) and 21 °C (70 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 801 mm (31.5 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually. San Rafael enjoys an average of 3549 hours of sunshine throughout the year, and daylight varies from 10 hours 51 minutes to 13 hours 23 minutes per day.

Monthly average temperatures in San Rafael, Mexico

The warmest months in San Rafael are April, May and June, with daily mean temperatures ranging from 20 to 21 °C (68 - 70 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 13 to 14 °C (55 - 58 °F) throughout the day. On average each year, San Rafael experiences 136 days above 25 °C (77.0 °F) and 1 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 Rafael. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(83°F)		32°C
(90°F)		32°C
(91°F)		33°C
(91°F)		34°C
(93°F)		33°C
(91°F)		30°C
(86°F)		30°C
(87°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		27°C
(81°F)
Mean maximum26°C
(80°F)		29°C
(84°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		31°C
(87°F)		27°C
(82°F)		28°C
(83°F)		27°C
(81°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)
Average high21°C
(69°F)		23°C
(75°F)		26°C
(79°F)		28°C
(83°F)		29°C
(84°F)		26°C
(78°F)		24°C
(76°F)		25°C
(77°F)		23°C
(74°F)		22°C
(72°F)		21°C
(70°F)		21°C
(70°F)
Daily mean13°C
(55°F)		15°C
(60°F)		17°C
(64°F)		20°C
(68°F)		21°C
(70°F)		20°C
(68°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		17°C
(62°F)		14°C
(58°F)		13°C
(56°F)
Average low7°C
(45°F)		9°C
(48°F)		11°C
(52°F)		13°C
(56°F)		15°C
(59°F)		15°C
(59°F)		15°C
(58°F)		15°C
(59°F)		14°C
(58°F)		12°C
(55°F)		9°C
(49°F)		7°C
(45°F)
Mean minimum2°C
(36°F)		3°C
(37°F)		6°C
(43°F)		8°C
(48°F)		11°C
(52°F)		13°C
(55°F)		13°C
(55°F)		13°C
(55°F)		11°C
(52°F)		8°C
(46°F)		3°C
(38°F)		1°C
(34°F)
Minimum-0°C
(32°F)		0°C
(33°F)		2°C
(35°F)		7°C
(46°F)		9°C
(48°F)		10°C
(49°F)		12°C
(54°F)		12°C
(53°F)		8°C
(47°F)		4°C
(39°F)		-1°C
(31°F)		-2°C
(29°F)

Compare climate in San Rafael with other places

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

Monthly average precipitation in San Rafael, Mexico

San Rafael usually has the most precipitation in June, July and September, with an average of 18 rainy days and 148 mm (5.8 inches) of precipitation per month. The driest months in San Rafael are January, February and December. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Rafael. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)10 (0.4)12 (0.5)23 (0.9)21 (0.8)51 (2.0)157 (6.2)130 (5.1)107 (4.2)155 (6.1)94 (3.7)30 (1.2)9 (0.4)
Average precipitation days (≥ 1 mm)245612171817201451

Monthly sunshine hours in San Rafael, Mexico

The sunniest months in San Rafael are May, July and August, when the sun shines an average of 10 hours 37 minutes a day. Least sunny months in San Rafael: January, February and November receive an average of 8 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Rafael. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours226263312319337316327323287279272282
Mean daily daylight hours10h 59m11h 26m12h 2m12h 38m13h 8m13h 23m13h 15m12h 48m12h 13m11h 37m11h 6m10h 51m

Solar UV radiation in San Rafael, Mexico

San Rafael experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 14 - 15, 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 Rafael UV Index data.

Average daily maximum UV levels by month for San Rafael. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911141515141414141298