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Monthly climate in San Gregorio, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Gregorio features a oceanic climate (Cfb). Temperatures typically range between 17 °C (63 °F) and 25 °C (78 °F) through the year, but rarely can drop to 4 °C (39 °F) or can rise to as high as 37 °C (98 °F). The average annual precipitation amounts to about 1816 mm (71.5 inches) and receives 199 rainy days on the 1 mm (0.04 inches) threshold annually. San Gregorio enjoys an average of 3211 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 Gregorio, Mexico

The warmest months in San Gregorio are May, June and August, with daily mean temperatures ranging from 25 to 25 °C (78 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 17 to 19 °C (63 - 66 °F) throughout the day. On average each year, San Gregorio experiences 232 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 Gregorio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum31°C
(89°F)		33°C
(92°F)		34°C
(93°F)		36°C
(96°F)		37°C
(98°F)		35°C
(96°F)		33°C
(91°F)		33°C
(92°F)		34°C
(93°F)		33°C
(92°F)		30°C
(87°F)		30°C
(87°F)
Mean maximum29°C
(84°F)		30°C
(86°F)		33°C
(91°F)		34°C
(94°F)		34°C
(93°F)		34°C
(93°F)		32°C
(89°F)		32°C
(89°F)		32°C
(90°F)		32°C
(90°F)		29°C
(84°F)		28°C
(83°F)
Average high22°C
(71°F)		24°C
(75°F)		26°C
(79°F)		29°C
(84°F)		30°C
(87°F)		30°C
(85°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		27°C
(81°F)		24°C
(76°F)		23°C
(73°F)
Daily mean17°C
(63°F)		19°C
(66°F)		21°C
(70°F)		23°C
(74°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		23°C
(74°F)		20°C
(68°F)		18°C
(64°F)
Average low14°C
(57°F)		15°C
(59°F)		17°C
(62°F)		19°C
(66°F)		21°C
(70°F)		22°C
(71°F)		21°C
(70°F)		21°C
(71°F)		21°C
(70°F)		19°C
(67°F)		16°C
(62°F)		14°C
(57°F)
Mean minimum7°C
(45°F)		9°C
(48°F)		12°C
(54°F)		14°C
(58°F)		18°C
(65°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)		15°C
(60°F)		10°C
(51°F)		8°C
(47°F)
Minimum6°C
(43°F)		6°C
(43°F)		8°C
(47°F)		12°C
(54°F)		16°C
(60°F)		18°C
(64°F)		18°C
(65°F)		18°C
(64°F)		16°C
(61°F)		14°C
(58°F)		5°C
(41°F)		4°C
(39°F)

Compare climate in San Gregorio with other places

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

Monthly average precipitation in San Gregorio, Mexico

San Gregorio usually has the most precipitation in June, September and October, with an average of 20 rainy days and 237 mm (9.3 inches) of precipitation per month. The driest months in San Gregorio are January, February and December. On average, 78 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Gregorio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)79 (3.1)112 (4.4)117 (4.6)185 (7.3)210 (8.3)141 (5.5)191 (7.5)212 (8.4)287 (11.3)127 (5.0)62 (2.4)
Average precipitation days (≥ 1 mm)14121412172323212217159

Monthly sunshine hours in San Gregorio, Mexico

The sunniest months in San Gregorio are May, July and August, when the sun shines an average of 9 hours 49 minutes a day. Least sunny months in San Gregorio: January, February and November receive an average of 7 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Gregorio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours196236278284307280307299267256240256
Mean daily daylight hours11h 2m11h 28m12h 2m12h 37m13h 6m13h 20m13h 12m12h 46m12h 13m11h 38m11h 8m10h 54m

Solar UV radiation in San Gregorio, Mexico

San Gregorio experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 13, 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 9. For more detailed information, check out our hourly San Gregorio UV Index data.

Average daily maximum UV levels by month for San Gregorio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)811121313131313131197