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Monthly climate in San Carlos, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Carlos features a hot semi-arid climate (BSh). Temperatures typically range between 12 °C (54 °F) and 31 °C (88 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 513 mm (20.2 inches) and receives 60 rainy days on the 1 mm (0.04 inches) threshold annually. San Carlos enjoys an average of 3412 hours of sunshine throughout the year, and daylight varies from 10 hours 18 minutes to 13 hours 57 minutes per day.

Monthly average temperatures in San Carlos, Mexico

The warmest months in San Carlos are June, July and August, with daily mean temperatures ranging from 30 to 31 °C (86 - 88 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 14 °C (54 - 58 °F) throughout the day. On average each year, San Carlos experiences 221 days above 25 °C (77.0 °F) and 4 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 Carlos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		35°C
(95°F)		34°C
(94°F)		41°C
(106°F)		41°C
(106°F)		42°C
(108°F)		43°C
(110°F)		41°C
(107°F)		41°C
(106°F)		38°C
(101°F)		31°C
(88°F)		32°C
(90°F)
Mean maximum27°C
(81°F)		32°C
(89°F)		33°C
(92°F)		38°C
(101°F)		39°C
(102°F)		40°C
(104°F)		40°C
(105°F)		40°C
(104°F)		39°C
(102°F)		35°C
(95°F)		30°C
(86°F)		28°C
(84°F)
Average high19°C
(66°F)		21°C
(70°F)		26°C
(79°F)		30°C
(86°F)		33°C
(92°F)		35°C
(96°F)		36°C
(98°F)		37°C
(98°F)		33°C
(92°F)		28°C
(84°F)		23°C
(74°F)		20°C
(69°F)
Daily mean12°C
(54°F)		14°C
(58°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		28°C
(83°F)		23°C
(73°F)		17°C
(63°F)		14°C
(57°F)
Average low6°C
(44°F)		8°C
(47°F)		14°C
(57°F)		17°C
(63°F)		22°C
(71°F)		24°C
(76°F)		25°C
(78°F)		26°C
(79°F)		23°C
(74°F)		17°C
(64°F)		12°C
(53°F)		8°C
(47°F)
Mean minimum-2°C
(30°F)		-1°C
(31°F)		5°C
(42°F)		9°C
(49°F)		15°C
(60°F)		21°C
(71°F)		22°C
(72°F)		23°C
(74°F)		18°C
(64°F)		6°C
(43°F)		3°C
(38°F)		1°C
(34°F)
Minimum-5°C
(22°F)		-11°C
(13°F)		-0°C
(32°F)		8°C
(46°F)		11°C
(53°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		13°C
(56°F)		3°C
(37°F)		-2°C
(29°F)		-2°C
(28°F)

Compare climate in San Carlos with other places

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

Monthly average precipitation in San Carlos, Mexico

San Carlos usually has the most precipitation in May, September and October, with an average of 8 rainy days and 88 mm (3.5 inches) of precipitation per month. The driest months in San Carlos are January, November and December. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Carlos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)20 (0.8)25 (1.0)25 (1.0)36 (1.4)79 (3.1)45 (1.8)38 (1.5)27 (1.0)125 (4.9)60 (2.4)13 (0.5)21 (0.8)
Average precipitation days (≥ 1 mm)3544116538722

Monthly sunshine hours in San Carlos, Mexico

The sunniest months in San Carlos are June, July and August, when the sun shines an average of 11 hours 21 minutes a day. Least sunny months in San Carlos: January, February and December receive an average of 7 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Carlos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours196230272290320342359343291268249248
Mean daily daylight hours10h 30m11h 9m12h 0m12h 52m13h 36m13h 57m13h 45m13h 7m12h 17m11h 25m10h 40m10h 18m

Solar UV radiation in San Carlos, Mexico

San Carlos experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly San Carlos UV Index data.

Average daily maximum UV levels by month for San Carlos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)5810111212121211965