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Monthly climate in San Juan Petlapa, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Juan Petlapa features a tropical savanna climate (Aw). Temperatures typically range between 19 °C (66 °F) and 26 °C (79 °F) through the year, but rarely can drop to 8 °C (48 °F) or can rise to as high as 39 °C (102 °F). The average annual precipitation amounts to about 2646 mm (104.2 inches) and receives 218 rainy days on the 1 mm (0.04 inches) threshold annually. San Juan Petlapa enjoys an average of 3344 hours of sunshine throughout the year, and daylight varies from 11 hours 5 minutes to 13 hours 8 minutes per day.

Monthly average temperatures in San Juan Petlapa, Mexico

The warmest months in San Juan Petlapa are April, May and June, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 20 °C (66 - 69 °F) throughout the day. On average each year, San Juan Petlapa experiences 242 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 San Juan Petlapa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(89°F)		35°C
(95°F)		35°C
(95°F)		39°C
(102°F)		38°C
(101°F)		35°C
(95°F)		33°C
(91°F)		32°C
(89°F)		34°C
(93°F)		33°C
(92°F)		31°C
(88°F)		31°C
(89°F)
Mean maximum30°C
(86°F)		31°C
(88°F)		34°C
(93°F)		36°C
(97°F)		35°C
(96°F)		32°C
(89°F)		31°C
(88°F)		31°C
(88°F)		31°C
(89°F)		31°C
(89°F)		29°C
(84°F)		29°C
(85°F)
Average high23°C
(74°F)		25°C
(77°F)		27°C
(80°F)		29°C
(85°F)		30°C
(87°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		27°C
(81°F)		25°C
(77°F)		24°C
(75°F)
Daily mean19°C
(66°F)		20°C
(69°F)		22°C
(72°F)		24°C
(76°F)		26°C
(79°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		21°C
(70°F)		19°C
(67°F)
Average low15°C
(59°F)		16°C
(61°F)		17°C
(63°F)		19°C
(66°F)		21°C
(70°F)		21°C
(70°F)		20°C
(69°F)		20°C
(69°F)		21°C
(69°F)		20°C
(68°F)		17°C
(63°F)		15°C
(59°F)
Mean minimum11°C
(51°F)		11°C
(52°F)		13°C
(55°F)		15°C
(59°F)		18°C
(65°F)		19°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(66°F)		16°C
(62°F)		13°C
(56°F)		10°C
(50°F)
Minimum8°C
(48°F)		9°C
(48°F)		11°C
(52°F)		13°C
(55°F)		16°C
(61°F)		17°C
(64°F)		17°C
(63°F)		18°C
(65°F)		18°C
(64°F)		15°C
(59°F)		10°C
(50°F)		9°C
(48°F)

Compare climate in San Juan Petlapa with other places

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

Monthly average precipitation in San Juan Petlapa, Mexico

San Juan Petlapa usually has the most precipitation in June, September and October, with an average of 25 rainy days and 421 mm (16.6 inches) of precipitation per month. The driest months in San Juan Petlapa are March, April and December. On average, 83 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Juan Petlapa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)104 (4.1)105 (4.2)75 (3.0)75 (3.0)141 (5.6)417 (16.4)208 (8.2)358 (14.1)474 (18.7)370 (14.6)219 (8.6)99 (3.9)
Average precipitation days (≥ 1 mm)13119101727282826231511

Monthly sunshine hours in San Juan Petlapa, Mexico

The sunniest months in San Juan Petlapa are April, May and July, when the sun shines an average of 10 hours 15 minutes a day. Least sunny months in San Juan Petlapa: January, February and November receive an average of 7 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Juan Petlapa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours194248299305320278318305281271257264
Mean daily daylight hours11h 11m11h 33m12h 3m12h 32m12h 56m13h 8m13h 2m12h 40m12h 12m11h 42m11h 17m11h 5m

Solar UV radiation in San Juan Petlapa, Mexico

San Juan Petlapa experiences the highest level of ultraviolet (UV) radiation in May, June and July, 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 San Juan Petlapa UV Index data.

Average daily maximum UV levels by month for San Juan Petlapa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)9121313141414131312108