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Monthly climate in San Pedro, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Pedro features a hot semi-arid climate (BSh). Temperatures typically range between 18 °C (64 °F) and 30 °C (87 °F) through the year, but rarely can drop to 2 °C (36 °F) or can rise to as high as 42 °C (108 °F). The average annual precipitation amounts to about 511 mm (20.1 inches) and receives 64 rainy days on the 1 mm (0.04 inches) threshold annually. San Pedro enjoys an average of 3550 hours of sunshine throughout the year, and daylight varies from 10 hours 29 minutes to 13 hours 45 minutes per day.

Monthly average temperatures in San Pedro, Mexico

The warmest months in San Pedro are June, July and August, with daily mean temperatures ranging from 29 to 30 °C (85 - 87 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 19 °C (64 - 66 °F) throughout the day. On average each year, San Pedro experiences 306 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 Pedro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		34°C
(93°F)		37°C
(98°F)		39°C
(102°F)		41°C
(107°F)		42°C
(108°F)		40°C
(104°F)		41°C
(105°F)		38°C
(101°F)		41°C
(106°F)		38°C
(101°F)		32°C
(90°F)
Mean maximum31°C
(88°F)		33°C
(91°F)		35°C
(95°F)		38°C
(100°F)		39°C
(103°F)		40°C
(105°F)		39°C
(102°F)		38°C
(101°F)		37°C
(99°F)		38°C
(102°F)		36°C
(98°F)		31°C
(88°F)
Average high27°C
(80°F)		27°C
(81°F)		30°C
(87°F)		33°C
(92°F)		36°C
(97°F)		37°C
(100°F)		35°C
(95°F)		34°C
(94°F)		34°C
(93°F)		34°C
(94°F)		31°C
(89°F)		27°C
(81°F)
Daily mean18°C
(64°F)		19°C
(66°F)		21°C
(71°F)		25°C
(77°F)		28°C
(82°F)		30°C
(87°F)		29°C
(85°F)		29°C
(85°F)		28°C
(83°F)		27°C
(81°F)		23°C
(74°F)		19°C
(66°F)
Average low10°C
(51°F)		12°C
(53°F)		13°C
(56°F)		16°C
(61°F)		19°C
(67°F)		24°C
(75°F)		25°C
(78°F)		25°C
(77°F)		24°C
(76°F)		21°C
(71°F)		16°C
(61°F)		12°C
(54°F)
Mean minimum5°C
(41°F)		7°C
(45°F)		8°C
(48°F)		12°C
(53°F)		15°C
(60°F)		21°C
(69°F)		23°C
(74°F)		23°C
(73°F)		22°C
(71°F)		15°C
(60°F)		11°C
(52°F)		7°C
(45°F)
Minimum2°C
(36°F)		4°C
(39°F)		7°C
(46°F)		10°C
(51°F)		13°C
(56°F)		20°C
(68°F)		22°C
(72°F)		22°C
(72°F)		21°C
(70°F)		11°C
(52°F)		9°C
(48°F)		6°C
(42°F)

Compare climate in San Pedro with other places

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

Monthly average precipitation in San Pedro, Mexico

San Pedro usually has the most precipitation in July, August and September, with an average of 16 rainy days and 115 mm (4.5 inches) of precipitation per month. The driest months in San Pedro are March, April and May. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Pedro. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)16 (0.6)29 (1.2)11 (0.4)1 (0.0)0 (0.0)27 (1.1)117 (4.6)124 (4.9)103 (4.0)24 (0.9)39 (1.5)20 (0.8)
Average precipitation days (≥ 1 mm)231002191614322

Monthly sunshine hours in San Pedro, Mexico

The sunniest months in San Pedro are April, May and June, when the sun shines an average of 11 hours 22 minutes a day. Least sunny months in San Pedro: January, February and December receive an average of 8 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Pedro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours220252298323365346315304284302270266
Mean daily daylight hours10h 40m11h 15m12h 1m12h 47m13h 26m13h 45m13h 35m13h 0m12h 16m11h 29m10h 49m10h 29m

Solar UV radiation in San Pedro, Mexico

San Pedro experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly San Pedro UV Index data.

Average daily maximum UV levels by month for San Pedro. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)69101213121212121076