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Monthly climate in Santo Domingo del Rio, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santo Domingo del Rio features a humid subtropical climate (Cfa). Temperatures typically range between 19 °C (67 °F) and 26 °C (78 °F) through the year, but rarely can drop to 9 °C (48 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 2424 mm (95.4 inches) and receives 211 rainy days on the 1 mm (0.04 inches) threshold annually. Santo Domingo del Rio enjoys an average of 3396 hours of sunshine throughout the year, and daylight varies from 11 hours 3 minutes to 13 hours 10 minutes per day.

Monthly average temperatures in Santo Domingo del Rio, Mexico

The warmest months in Santo Domingo del Rio are May, June and August, with daily mean temperatures ranging from 25 to 26 °C (77 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 21 °C (67 - 69 °F) throughout the day. On average each year, Santo Domingo del Rio experiences 231 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 Santo Domingo del Rio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum31°C
(88°F)		34°C
(94°F)		35°C
(95°F)		37°C
(99°F)		36°C
(97°F)		33°C
(92°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		31°C
(88°F)		31°C
(88°F)
Mean maximum29°C
(85°F)		30°C
(87°F)		33°C
(91°F)		35°C
(95°F)		33°C
(93°F)		31°C
(89°F)		30°C
(87°F)		31°C
(87°F)		31°C
(88°F)		31°C
(88°F)		28°C
(84°F)		29°C
(84°F)
Average high23°C
(73°F)		24°C
(76°F)		26°C
(79°F)		28°C
(83°F)		29°C
(85°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		27°C
(81°F)		24°C
(76°F)		23°C
(74°F)
Daily mean19°C
(67°F)		21°C
(69°F)		22°C
(72°F)		24°C
(76°F)		26°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)		21°C
(70°F)		20°C
(68°F)
Average low16°C
(62°F)		17°C
(63°F)		19°C
(66°F)		21°C
(70°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		18°C
(65°F)		17°C
(62°F)
Mean minimum13°C
(55°F)		12°C
(54°F)		15°C
(59°F)		17°C
(63°F)		19°C
(67°F)		20°C
(69°F)		20°C
(68°F)		20°C
(69°F)		20°C
(69°F)		18°C
(65°F)		15°C
(58°F)		13°C
(55°F)
Minimum11°C
(52°F)		9°C
(48°F)		12°C
(55°F)		15°C
(60°F)		17°C
(64°F)		20°C
(68°F)		19°C
(67°F)		20°C
(68°F)		20°C
(68°F)		17°C
(63°F)		11°C
(51°F)		10°C
(51°F)

Compare climate in Santo Domingo del Rio with other places

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

Monthly average precipitation in Santo Domingo del Rio, Mexico

Santo Domingo del Rio usually has the most precipitation in June, September and October, with an average of 24 rainy days and 367 mm (14.4 inches) of precipitation per month. The driest months in Santo Domingo del Rio are March, April and December. On average, 103 mm (4.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santo Domingo del Rio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)119 (4.7)113 (4.5)105 (4.1)101 (4.0)131 (5.2)368 (14.5)171 (6.7)261 (10.3)386 (15.2)346 (13.6)219 (8.6)104 (4.1)
Average precipitation days (≥ 1 mm)141210121926222325211512

Monthly sunshine hours in Santo Domingo del Rio, Mexico

The sunniest months in Santo Domingo del Rio are April, May and July, when the sun shines an average of 10 hours 18 minutes a day. Least sunny months in Santo Domingo del Rio: January, February and November receive an average of 7 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santo Domingo del Rio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours199253301307320287320306282281263271
Mean daily daylight hours11h 10m11h 32m12h 2m12h 33m12h 58m13h 10m13h 4m12h 41m12h 12m11h 42m11h 15m11h 3m

Solar UV radiation in Santo Domingo del Rio, Mexico

Santo Domingo del Rio experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 13 - 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 9. For more detailed information, check out our hourly Santo Domingo del Rio UV Index data.

Average daily maximum UV levels by month for Santo Domingo del Rio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911121313141413131298