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Monthly climate in Oaxaca, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Oaxaca features a subtropical climate (Cwb). Temperatures typically range between 16 °C (61 °F) and 20 °C (69 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 951 mm (37.4 inches) and receives 102 rainy days on the 1 mm (0.04 inches) threshold annually. Oaxaca enjoys an average of 3380 hours of sunshine throughout the year, and daylight varies from 11 hours 7 minutes to 13 hours 6 minutes per day.

Monthly average temperatures in Oaxaca, Mexico

The warmest months in Oaxaca are April, May and June, with daily mean temperatures ranging from 19 to 20 °C (66 - 69 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 16 to 17 °C (61 - 63 °F) throughout the day. On average each year, Oaxaca experiences 195 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 Oaxaca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(86°F)		31°C
(88°F)		32°C
(90°F)		33°C
(92°F)		34°C
(94°F)		30°C
(86°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)
Mean maximum28°C
(83°F)		30°C
(86°F)		31°C
(88°F)		32°C
(89°F)		31°C
(89°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)
Average high24°C
(76°F)		26°C
(79°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)
Daily mean16°C
(61°F)		18°C
(64°F)		19°C
(66°F)		20°C
(68°F)		20°C
(69°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		17°C
(63°F)		16°C
(61°F)
Average low10°C
(50°F)		10°C
(51°F)		12°C
(53°F)		13°C
(55°F)		14°C
(58°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		14°C
(57°F)		11°C
(53°F)		10°C
(49°F)
Mean minimum4°C
(40°F)		5°C
(41°F)		7°C
(45°F)		9°C
(48°F)		10°C
(51°F)		12°C
(54°F)		11°C
(52°F)		12°C
(54°F)		11°C
(53°F)		10°C
(50°F)		7°C
(45°F)		5°C
(40°F)
Minimum1°C
(35°F)		1°C
(34°F)		6°C
(43°F)		6°C
(43°F)		9°C
(49°F)		11°C
(51°F)		11°C
(51°F)		11°C
(52°F)		10°C
(50°F)		5°C
(41°F)		6°C
(43°F)		2°C
(36°F)

Compare climate in Oaxaca with other places

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

Monthly average precipitation in Oaxaca, Mexico

Oaxaca usually has the most precipitation in June, August and September, with an average of 19 rainy days and 205 mm (8.1 inches) of precipitation per month. The driest months in Oaxaca are January, February and December. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oaxaca. 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)11 (0.4)29 (1.2)60 (2.4)215 (8.5)102 (4.0)174 (6.9)227 (8.9)109 (4.3)12 (0.5)6 (0.2)
Average precipitation days (≥ 1 mm)00149191420201221

Monthly sunshine hours in Oaxaca, Mexico

The sunniest months in Oaxaca are March, April and May, when the sun shines an average of 10 hours 11 minutes a day. Least sunny months in Oaxaca: January, June and September receive an average of 8 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oaxaca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours230273313312310258304280256266281292
Mean daily daylight hours11h 14m11h 35m12h 2m12h 31m12h 55m13h 6m13h 0m12h 39m12h 11m11h 43m11h 19m11h 7m

Solar UV radiation in Oaxaca, Mexico

Oaxaca experiences the highest level of ultraviolet (UV) radiation in March, April and May, 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 Oaxaca UV Index data.

Average daily maximum UV levels by month for Oaxaca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10131515151515141413119