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Monthly climate in Valle del Rio, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Valle del Rio features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (78 °F) and 27 °C (82 °F) through the year, but rarely can drop to 18 °C (64 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1571 mm (61.8 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually. Valle del Rio enjoys an average of 3337 hours of sunshine throughout the year, and daylight varies from 11 hours 6 minutes to 13 hours 7 minutes per day.

Monthly average temperatures in Valle del Rio, Mexico

The warmest months in Valle del Rio are May, July and August, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, Valle del Rio experiences 329 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 Valle del Rio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		33°C
(92°F)		34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		34°C
(93°F)		34°C
(93°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)
Mean maximum32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		34°C
(93°F)		34°C
(93°F)		32°C
(89°F)		33°C
(91°F)		32°C
(90°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		32°C
(89°F)
Average high30°C
(86°F)		30°C
(87°F)		31°C
(88°F)		31°C
(89°F)		31°C
(89°F)		30°C
(86°F)		31°C
(88°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)
Daily mean26°C
(78°F)		26°C
(79°F)		26°C
(80°F)		27°C
(81°F)		27°C
(82°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		27°C
(80°F)		26°C
(80°F)		26°C
(78°F)
Average low22°C
(72°F)		22°C
(72°F)		22°C
(73°F)		23°C
(74°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)
Mean minimum20°C
(68°F)		20°C
(68°F)		21°C
(70°F)		21°C
(70°F)		22°C
(72°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		21°C
(70°F)		20°C
(68°F)
Minimum19°C
(67°F)		18°C
(64°F)		20°C
(68°F)		20°C
(68°F)		21°C
(70°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		20°C
(69°F)		20°C
(67°F)

Compare climate in Valle del Rio with other places

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

Monthly average precipitation in Valle del Rio, Mexico

Valle del Rio usually has the most precipitation in June, August and September, with an average of 23 rainy days and 338 mm (13.3 inches) of precipitation per month. The driest months in Valle del Rio are February, March and April. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Valle del Rio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)5 (0.2)3 (0.1)2 (0.1)1 (0.0)28 (1.1)289 (11.4)172 (6.8)357 (14.1)368 (14.5)280 (11.0)54 (2.1)12 (0.5)
Average precipitation days (≥ 1 mm)10005212024252462

Monthly sunshine hours in Valle del Rio, Mexico

The sunniest months in Valle del Rio are March, April and May, when the sun shines an average of 10 hours 23 minutes a day. Least sunny months in Valle del Rio: January, June and September receive an average of 7 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Valle del Rio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours241279319321316245285252234257286296
Mean daily daylight hours11h 13m11h 34m12h 2m12h 31m12h 55m13h 7m13h 0m12h 39m12h 11m11h 43m11h 18m11h 6m

Solar UV radiation in Valle del Rio, Mexico

Valle del Rio experiences the highest level of ultraviolet (UV) radiation in May, June and September, when the maximum UV index can reach values of 14 - 14, 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 Valle del Rio UV Index data.

Average daily maximum UV levels by month for Valle del Rio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1011131314141313141298