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Monthly climate in Santa Maria Huatulco, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Santa Maria Huatulco features a tropical savanna climate (Aw). Temperatures typically range between 25 °C (77 °F) and 27 °C (80 °F) through the year, but rarely can drop to 18 °C (65 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 2106 mm (82.9 inches) and receives 180 rainy days on the 1 mm (0.04 inches) threshold annually. Santa Maria Huatulco enjoys an average of 3591 hours of sunshine throughout the year, and daylight varies from 11 hours 11 minutes to 13 hours 2 minutes per day.

Monthly average temperatures in Santa Maria Huatulco, Mexico

The warmest months in Santa Maria Huatulco are May, July and August, with daily mean temperatures ranging from 27 to 27 °C (80 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 25 to 25 °C (77 - 77 °F) throughout the day. On average each year, Santa Maria Huatulco experiences 328 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 Santa Maria Huatulco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(87°F)		31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		31°C
(88°F)		32°C
(89°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		29°C
(85°F)
Mean maximum30°C
(86°F)		30°C
(87°F)		31°C
(88°F)		31°C
(88°F)		31°C
(87°F)		30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		29°C
(84°F)
Average high28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)
Daily mean25°C
(77°F)		25°C
(77°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(78°F)		25°C
(77°F)
Average low22°C
(72°F)		22°C
(73°F)		23°C
(74°F)		24°C
(75°F)		25°C
(77°F)		25°C
(76°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		22°C
(72°F)
Mean minimum20°C
(69°F)		21°C
(69°F)		22°C
(71°F)		22°C
(72°F)		23°C
(74°F)		23°C
(75°F)		24°C
(75°F)		23°C
(74°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		20°C
(69°F)
Minimum18°C
(65°F)		18°C
(65°F)		20°C
(69°F)		21°C
(70°F)		22°C
(73°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		20°C
(69°F)		19°C
(67°F)

Compare climate in Santa Maria Huatulco with other places

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

Monthly average precipitation in Santa Maria Huatulco, Mexico

Santa Maria Huatulco usually has the most precipitation in June, September and October, with an average of 25 rainy days and 439 mm (17.3 inches) of precipitation per month. The driest months in Santa Maria Huatulco are February, March and December. On average, 16 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santa Maria Huatulco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)21 (0.8)12 (0.5)16 (0.6)25 (1.0)141 (5.5)519 (20.4)170 (6.7)310 (12.2)358 (14.1)440 (17.3)75 (2.9)20 (0.8)
Average precipitation days (≥ 1 mm)5445172425252626154

Monthly sunshine hours in Santa Maria Huatulco, Mexico

The sunniest months in Santa Maria Huatulco are March, May and July, when the sun shines an average of 10 hours 28 minutes a day. Least sunny months in Santa Maria Huatulco: January, June and September receive an average of 8 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santa Maria Huatulco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours247282322319326274325299281296307308
Mean daily daylight hours11h 17m11h 37m12h 2m12h 29m12h 51m13h 2m12h 56m12h 36m12h 11m11h 45m11h 22m11h 11m

Solar UV radiation in Santa Maria Huatulco, Mexico

Santa Maria Huatulco experiences the highest level of ultraviolet (UV) radiation in April, May and June, when the maximum UV index can reach values of 14 - 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 10. For more detailed information, check out our hourly Santa Maria Huatulco UV Index data.

Average daily maximum UV levels by month for Santa Maria Huatulco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10111314141413131312109