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Monthly climate in Casas Viejas, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Casas Viejas features a tropical monsoon climate (Am). Temperatures typically range between 22 °C (72 °F) and 29 °C (85 °F) through the year, but rarely can drop to 12 °C (53 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1585 mm (62.4 inches) and receives 176 rainy days on the 1 mm (0.04 inches) threshold annually. Casas Viejas enjoys an average of 3261 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 Casas Viejas, Mexico

The warmest months in Casas Viejas are April, May and June, with daily mean temperatures ranging from 28 to 29 °C (82 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 22 to 24 °C (72 - 75 °F) throughout the day. On average each year, Casas Viejas experiences 301 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 Casas Viejas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(95°F)		35°C
(95°F)		38°C
(101°F)		39°C
(103°F)		40°C
(104°F)		38°C
(101°F)		36°C
(97°F)		36°C
(97°F)		36°C
(97°F)		35°C
(95°F)		34°C
(93°F)		33°C
(92°F)
Mean maximum33°C
(92°F)		34°C
(94°F)		37°C
(99°F)		38°C
(101°F)		39°C
(102°F)		35°C
(96°F)		35°C
(95°F)		35°C
(95°F)		35°C
(95°F)		34°C
(94°F)		32°C
(90°F)		32°C
(90°F)
Average high26°C
(80°F)		29°C
(84°F)		31°C
(88°F)		34°C
(93°F)		35°C
(96°F)		33°C
(91°F)		32°C
(91°F)		32°C
(90°F)		32°C
(90°F)		30°C
(87°F)		28°C
(82°F)		27°C
(81°F)
Daily mean22°C
(72°F)		24°C
(75°F)		25°C
(78°F)		28°C
(82°F)		29°C
(85°F)		28°C
(82°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		24°C
(75°F)		22°C
(73°F)
Average low19°C
(66°F)		19°C
(67°F)		21°C
(70°F)		23°C
(73°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		20°C
(69°F)		19°C
(66°F)
Mean minimum14°C
(57°F)		14°C
(57°F)		16°C
(61°F)		19°C
(66°F)		22°C
(71°F)		22°C
(72°F)		22°C
(71°F)		22°C
(72°F)		22°C
(72°F)		20°C
(68°F)		16°C
(61°F)		13°C
(56°F)
Minimum12°C
(53°F)		12°C
(53°F)		13°C
(56°F)		16°C
(61°F)		18°C
(65°F)		21°C
(71°F)		21°C
(70°F)		22°C
(71°F)		21°C
(70°F)		17°C
(63°F)		14°C
(57°F)		12°C
(54°F)

Compare climate in Casas Viejas with other places

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

Monthly average precipitation in Casas Viejas, Mexico

Casas Viejas usually has the most precipitation in June, August and September, with an average of 24 rainy days and 272 mm (10.7 inches) of precipitation per month. The driest months in Casas Viejas are February, March and April. On average, 27 mm (1.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Casas Viejas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)40 (1.6)32 (1.3)21 (0.8)26 (1.0)51 (2.0)254 (10.0)229 (9.0)272 (10.7)291 (11.5)233 (9.2)99 (3.9)36 (1.4)
Average precipitation days (≥ 1 mm)10655102224262522138

Monthly sunshine hours in Casas Viejas, Mexico

The sunniest months in Casas Viejas are April, May and July, when the sun shines an average of 10 hours 11 minutes a day. Least sunny months in Casas Viejas: January, February and December receive an average of 7 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Casas Viejas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours176231292303325280308302281261252244
Mean daily daylight hours11h 10m11h 32m12h 2m12h 33m12h 58m13h 10m13h 4m12h 41m12h 12m11h 42m11h 16m11h 3m

Solar UV radiation in Casas Viejas, Mexico

Casas Viejas experiences the highest level of ultraviolet (UV) radiation in April, July and September, 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 Casas Viejas UV Index data.

Average daily maximum UV levels by month for Casas Viejas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911121313131413131198