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Monthly climate in Tomas, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tomas features a ice cap climate ET). Temperatures typically range between 2 °C (35 °F) and 4 °C (39 °F) through the year, but rarely can drop to -8 °C (18 °F) or can rise to as high as 13 °C (55 °F). The average annual precipitation amounts to about 1615 mm (63.6 inches) and receives 271 rainy days on the 1 mm (0.04 inches) threshold annually. Tomas enjoys an average of 3492 hours of sunshine throughout the year, and daylight varies from 11 hours 24 minutes to 12 hours 49 minutes per day.

Monthly average temperatures in Tomas, Peru

The warmest months in Tomas are February, November and December, with daily mean temperatures ranging from 3 to 4 °C (39 - 39 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 2 to 2 °C (35 - 36 °F) throughout the day. On average each year, Tomas experiences 0 days above 25 °C (77.0 °F) and 225 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tomas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(55°F)		13°C
(55°F)		11°C
(52°F)		12°C
(53°F)		10°C
(51°F)		11°C
(51°F)		11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		12°C
(54°F)		11°C
(53°F)		11°C
(53°F)
Mean maximum11°C
(52°F)		11°C
(52°F)		11°C
(51°F)		10°C
(50°F)		10°C
(50°F)		9°C
(49°F)		10°C
(50°F)		10°C
(49°F)		10°C
(50°F)		11°C
(51°F)		11°C
(52°F)		11°C
(52°F)
Average high8°C
(47°F)		8°C
(47°F)		8°C
(47°F)		8°C
(47°F)		7°C
(46°F)		7°C
(45°F)		7°C
(45°F)		7°C
(46°F)		7°C
(45°F)		8°C
(46°F)		9°C
(48°F)		9°C
(48°F)
Daily mean3°C
(38°F)		3°C
(39°F)		3°C
(38°F)		3°C
(38°F)		2°C
(37°F)		2°C
(36°F)		2°C
(35°F)		2°C
(36°F)		2°C
(37°F)		3°C
(38°F)		4°C
(39°F)		4°C
(39°F)
Average low-0°C
(32°F)		-0°C
(32°F)		0°C
(33°F)		-1°C
(30°F)		-2°C
(28°F)		-3°C
(27°F)		-4°C
(26°F)		-3°C
(27°F)		-2°C
(29°F)		-1°C
(30°F)		-0°C
(32°F)		0°C
(32°F)
Mean minimum-4°C
(26°F)		-3°C
(27°F)		-3°C
(27°F)		-6°C
(22°F)		-7°C
(21°F)		-5°C
(23°F)		-7°C
(21°F)		-7°C
(20°F)		-5°C
(23°F)		-5°C
(24°F)		-4°C
(26°F)		-4°C
(26°F)
Minimum-7°C
(19°F)		-7°C
(19°F)		-6°C
(21°F)		-8°C
(18°F)		-7°C
(19°F)		-8°C
(18°F)		-8°C
(18°F)		-7°C
(19°F)		-6°C
(21°F)		-6°C
(21°F)		-6°C
(21°F)		-7°C
(21°F)

Compare climate in Tomas with other places

Compare temperature, precipitation, sunshine, UV index in Tomas, Peru with other places around the world.

Monthly average precipitation in Tomas, Peru

Tomas usually has the most precipitation in January, February and March, with an average of 27 rainy days and 224 mm (8.8 inches) of precipitation per month. The driest months in Tomas are June, July and August. On average, 42 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tomas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)199 (7.8)222 (8.7)253 (10.0)126 (5.0)92 (3.6)39 (1.5)35 (1.4)52 (2.0)105 (4.1)148 (5.8)156 (6.1)189 (7.5)
Average precipitation days (≥ 1 mm)252731252111101325272828

Monthly sunshine hours in Tomas, Peru

The sunniest months in Tomas are July, August and September, when the sun shines an average of 10 hours 45 minutes a day. Least sunny months in Tomas: January, February and March receive an average of 7 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tomas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours216237259295321310329336323313274273
Mean daily daylight hours12h 44m12h 28m12h 8m11h 48m11h 31m11h 24m11h 28m11h 42m12h 1m12h 21m12h 39m12h 49m

Solar UV radiation in Tomas, Peru

Tomas experiences the highest level of ultraviolet (UV) radiation in January, March and December, when the maximum UV index can reach values of 21 - 23, which corresponds to the Extreme category of sun exposure. May, June and July are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 15. For more detailed information, check out our hourly Tomas UV Index data.

Average daily maximum UV levels by month for Tomas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)232121181513141517202021