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Monthly climate in Santo Tomas de Arriba, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santo Tomas de Arriba features a hot semi-arid climate (BSh). Temperatures typically range between 18 °C (64 °F) and 23 °C (74 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 965 mm (38.0 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually. Santo Tomas de Arriba enjoys an average of 3528 hours of sunshine throughout the year, and daylight varies from 11 hours 8 minutes to 13 hours 5 minutes per day.

Monthly average temperatures in Santo Tomas de Arriba, Mexico

The warmest months in Santo Tomas de Arriba are April, May and June, with daily mean temperatures ranging from 21 to 23 °C (70 - 74 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 18 to 18 °C (64 - 66 °F) throughout the day. On average each year, Santo Tomas de Arriba experiences 275 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 Tomas de Arriba. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		36°C
(96°F)		35°C
(96°F)		37°C
(99°F)		36°C
(98°F)		34°C
(94°F)		32°C
(90°F)		31°C
(88°F)		31°C
(88°F)		32°C
(89°F)		32°C
(90°F)		31°C
(89°F)
Mean maximum31°C
(88°F)		33°C
(92°F)		34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)
Average high26°C
(79°F)		28°C
(83°F)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)
Daily mean18°C
(64°F)		19°C
(67°F)		21°C
(69°F)		22°C
(73°F)		23°C
(74°F)		21°C
(70°F)		21°C
(70°F)		21°C
(69°F)		21°C
(69°F)		20°C
(68°F)		18°C
(66°F)		18°C
(64°F)
Average low11°C
(52°F)		11°C
(53°F)		13°C
(55°F)		15°C
(58°F)		16°C
(61°F)		16°C
(61°F)		15°C
(60°F)		15°C
(60°F)		16°C
(61°F)		15°C
(59°F)		12°C
(54°F)		10°C
(51°F)
Mean minimum6°C
(43°F)		6°C
(44°F)		8°C
(47°F)		10°C
(51°F)		13°C
(55°F)		14°C
(57°F)		12°C
(55°F)		13°C
(56°F)		13°C
(56°F)		11°C
(52°F)		8°C
(47°F)		5°C
(42°F)
Minimum5°C
(41°F)		3°C
(39°F)		7°C
(44°F)		8°C
(47°F)		10°C
(50°F)		12°C
(54°F)		11°C
(53°F)		12°C
(55°F)		12°C
(54°F)		8°C
(47°F)		7°C
(44°F)		3°C
(38°F)

Compare climate in Santo Tomas de Arriba with other places

Compare temperature, precipitation, sunshine, UV index in Santo Tomas de Arriba, Mexico with other places around the world.

Monthly average precipitation in Santo Tomas de Arriba, Mexico

Santo Tomas de Arriba usually has the most precipitation in June, August and September, with an average of 22 rainy days and 203 mm (8.0 inches) of precipitation per month. The driest months in Santo Tomas de Arriba are January, February and March. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santo Tomas de Arriba. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)3 (0.1)3 (0.1)4 (0.2)19 (0.8)61 (2.4)225 (8.9)106 (4.2)176 (6.9)207 (8.2)140 (5.5)15 (0.6)4 (0.2)
Average precipitation days (≥ 1 mm)001412202024231520

Monthly sunshine hours in Santo Tomas de Arriba, Mexico

The sunniest months in Santo Tomas de Arriba are March, May and July, when the sun shines an average of 10 hours 16 minutes a day. Least sunny months in Santo Tomas de Arriba: January, June and September receive an average of 8 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santo Tomas de Arriba. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours243279319317317267318299278288298301
Mean daily daylight hours11h 14m11h 35m12h 2m12h 30m12h 54m13h 5m12h 59m12h 38m12h 11m11h 43m11h 20m11h 8m

Solar UV radiation in Santo Tomas de Arriba, Mexico

Santo Tomas de Arriba experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Santo Tomas de Arriba UV Index data.

Average daily maximum UV levels by month for Santo Tomas de Arriba. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10131415151415141413119