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Monthly climate in Hercules, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hercules features a hot semi-arid climate (BSh). Temperatures typically range between 11 °C (53 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (21 °F) or can rise to as high as 40 °C (105 °F). The average annual precipitation amounts to about 168 mm (6.6 inches) and receives 33 rainy days on the 1 mm (0.04 inches) threshold annually. Hercules enjoys an average of 3661 hours of sunshine throughout the year, and daylight varies from 10 hours 22 minutes to 13 hours 52 minutes per day.

Monthly average temperatures in Hercules, Mexico

The warmest months in Hercules are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 15 °C (53 - 60 °F) throughout the day. On average each year, Hercules experiences 230 days above 25 °C (77.0 °F) and 11 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hercules. 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)		36°C
(96°F)		36°C
(96°F)		40°C
(104°F)		40°C
(105°F)		39°C
(103°F)		39°C
(103°F)		39°C
(102°F)		35°C
(95°F)		33°C
(91°F)		29°C
(84°F)
Mean maximum27°C
(80°F)		30°C
(87°F)		33°C
(92°F)		35°C
(95°F)		38°C
(101°F)		39°C
(103°F)		38°C
(101°F)		37°C
(99°F)		36°C
(96°F)		34°C
(94°F)		31°C
(87°F)		27°C
(80°F)
Average high19°C
(67°F)		23°C
(73°F)		27°C
(81°F)		30°C
(87°F)		34°C
(94°F)		35°C
(95°F)		34°C
(93°F)		33°C
(93°F)		31°C
(87°F)		28°C
(83°F)		24°C
(75°F)		20°C
(68°F)
Daily mean11°C
(53°F)		15°C
(60°F)		19°C
(67°F)		23°C
(74°F)		27°C
(80°F)		28°C
(83°F)		27°C
(82°F)		27°C
(81°F)		25°C
(77°F)		22°C
(71°F)		16°C
(62°F)		12°C
(54°F)
Average low4°C
(40°F)		8°C
(46°F)		11°C
(53°F)		15°C
(59°F)		18°C
(66°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		19°C
(66°F)		15°C
(59°F)		9°C
(49°F)		5°C
(42°F)
Mean minimum-3°C
(26°F)		-1°C
(31°F)		3°C
(38°F)		8°C
(46°F)		13°C
(55°F)		17°C
(63°F)		18°C
(64°F)		17°C
(64°F)		14°C
(58°F)		4°C
(39°F)		1°C
(35°F)		-3°C
(28°F)
Minimum-5°C
(24°F)		-7°C
(21°F)		-2°C
(29°F)		6°C
(42°F)		9°C
(49°F)		15°C
(59°F)		17°C
(63°F)		14°C
(57°F)		12°C
(54°F)		1°C
(35°F)		-5°C
(23°F)		-4°C
(25°F)

Compare climate in Hercules with other places

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

Monthly average precipitation in Hercules, Mexico

Hercules usually has the most precipitation in August, September and October, with an average of 5 rainy days and 26 mm (1.0 inches) of precipitation per month. The driest months in Hercules are January, February and March. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hercules. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)5 (0.2)4 (0.2)5 (0.2)6 (0.2)10 (0.4)18 (0.7)17 (0.7)23 (0.9)34 (1.4)21 (0.8)9 (0.4)18 (0.7)
Average precipitation days (≥ 1 mm)110234357322

Monthly sunshine hours in Hercules, Mexico

The sunniest months in Hercules are May, June and July, when the sun shines an average of 11 hours 42 minutes a day. Least sunny months in Hercules: January, February and December receive an average of 8 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hercules. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours219257303324360353361345305291270268
Mean daily daylight hours10h 34m11h 12m12h 0m12h 50m13h 32m13h 52m13h 41m13h 4m12h 16m11h 27m10h 44m10h 22m

Solar UV radiation in Hercules, Mexico

Hercules experiences the highest level of ultraviolet (UV) radiation in April, May and August, 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 exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Hercules UV Index data.

Average daily maximum UV levels by month for Hercules. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)69111313131313121076