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Monthly climate in El Rosario, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification El Rosario features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 14 °C (58 °F) and 23 °C (73 °F) through the year, but rarely can drop to 0 °C (32 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 960 mm (37.8 inches) and receives 102 rainy days on the 1 mm (0.04 inches) threshold annually. El Rosario enjoys an average of 3627 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 24 minutes per day.

Monthly average temperatures in El Rosario, Mexico

The warmest months in El Rosario are April, May and June, with daily mean temperatures ranging from 21 to 23 °C (70 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 14 to 16 °C (58 - 62 °F) throughout the day. On average each year, El Rosario experiences 208 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 El Rosario. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		30°C
(86°F)		33°C
(92°F)		33°C
(92°F)		35°C
(95°F)		35°C
(96°F)		32°C
(89°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		28°C
(82°F)
Mean maximum26°C
(79°F)		29°C
(84°F)		31°C
(88°F)		32°C
(90°F)		34°C
(93°F)		34°C
(93°F)		29°C
(85°F)		28°C
(83°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		26°C
(79°F)
Average high22°C
(72°F)		24°C
(76°F)		28°C
(82°F)		30°C
(85°F)		31°C
(88°F)		29°C
(85°F)		26°C
(79°F)		26°C
(79°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		22°C
(73°F)
Daily mean14°C
(58°F)		16°C
(62°F)		19°C
(67°F)		21°C
(70°F)		23°C
(73°F)		22°C
(72°F)		20°C
(68°F)		20°C
(68°F)		19°C
(67°F)		19°C
(66°F)		17°C
(62°F)		14°C
(58°F)
Average low7°C
(45°F)		9°C
(48°F)		10°C
(51°F)		12°C
(54°F)		14°C
(58°F)		16°C
(62°F)		15°C
(59°F)		15°C
(59°F)		15°C
(59°F)		13°C
(55°F)		10°C
(49°F)		7°C
(45°F)
Mean minimum3°C
(37°F)		5°C
(41°F)		7°C
(45°F)		8°C
(47°F)		10°C
(50°F)		14°C
(58°F)		14°C
(57°F)		13°C
(56°F)		12°C
(54°F)		9°C
(48°F)		6°C
(43°F)		2°C
(37°F)
Minimum1°C
(34°F)		3°C
(38°F)		6°C
(43°F)		6°C
(43°F)		8°C
(47°F)		13°C
(56°F)		13°C
(55°F)		12°C
(54°F)		10°C
(51°F)		7°C
(44°F)		4°C
(39°F)		-0°C
(32°F)

Compare climate in El Rosario with other places

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

Monthly average precipitation in El Rosario, Mexico

El Rosario usually has the most precipitation in July, August and September, with an average of 21 rainy days and 213 mm (8.4 inches) of precipitation per month. The driest months in El Rosario are March, April and December. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in El Rosario. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)11 (0.4)11 (0.4)5 (0.2)1 (0.0)26 (1.0)163 (6.4)264 (10.4)192 (7.6)184 (7.2)78 (3.1)17 (0.7)8 (0.3)
Average precipitation days (≥ 1 mm)21105152421201021

Monthly sunshine hours in El Rosario, Mexico

The sunniest months in El Rosario are April, May and July, when the sun shines an average of 10 hours 54 minutes a day. Least sunny months in El Rosario: January, February and November receive an average of 8 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in El Rosario. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours232269320329349319325325292294283284
Mean daily daylight hours10h 58m11h 26m12h 1m12h 38m13h 9m13h 24m13h 16m12h 49m12h 13m11h 37m11h 5m10h 50m

Solar UV radiation in El Rosario, Mexico

El Rosario experiences the highest level of ultraviolet (UV) radiation in April, May and August, 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 10. For more detailed information, check out our hourly El Rosario UV Index data.

Average daily maximum UV levels by month for El Rosario. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)9111415151414141312108