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Monthly climate in San Juan Chamelco, Guatemala

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Juan Chamelco features a subtropical climate (Cwb). Temperatures typically range between 18 °C (64 °F) and 22 °C (73 °F) through the year, but rarely can drop to 8 °C (47 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 3027 mm (119.2 inches) and receives 264 rainy days on the 1 mm (0.04 inches) threshold annually. San Juan Chamelco enjoys an average of 3403 hours of sunshine throughout the year, and daylight varies from 11 hours 12 minutes to 13 hours 1 minutes per day.

Monthly average temperatures in San Juan Chamelco, Guatemala

The warmest months in San Juan Chamelco are April, May and June, with daily mean temperatures ranging from 22 to 22 °C (71 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 19 °C (64 - 66 °F) throughout the day. On average each year, San Juan Chamelco experiences 201 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 Chamelco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(82°F)		30°C
(86°F)		30°C
(86°F)		34°C
(94°F)		33°C
(92°F)		32°C
(89°F)		29°C
(84°F)		30°C
(86°F)		29°C
(85°F)		29°C
(85°F)		28°C
(83°F)		28°C
(83°F)
Mean maximum27°C
(81°F)		28°C
(83°F)		29°C
(84°F)		32°C
(89°F)		31°C
(89°F)		29°C
(85°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		27°C
(80°F)		27°C
(80°F)
Average high22°C
(72°F)		24°C
(75°F)		24°C
(76°F)		27°C
(81°F)		28°C
(83°F)		27°C
(81°F)		26°C
(80°F)		27°C
(81°F)		27°C
(81°F)		26°C
(78°F)		23°C
(74°F)		22°C
(73°F)
Daily mean18°C
(64°F)		19°C
(66°F)		19°C
(67°F)		22°C
(71°F)		22°C
(73°F)		22°C
(72°F)		21°C
(71°F)		22°C
(71°F)		22°C
(71°F)		21°C
(70°F)		19°C
(67°F)		18°C
(65°F)
Average low14°C
(58°F)		15°C
(59°F)		15°C
(60°F)		17°C
(63°F)		18°C
(65°F)		19°C
(66°F)		18°C
(64°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		16°C
(61°F)		15°C
(59°F)
Mean minimum10°C
(51°F)		11°C
(53°F)		12°C
(54°F)		13°C
(56°F)		16°C
(62°F)		17°C
(63°F)		16°C
(61°F)		16°C
(62°F)		17°C
(62°F)		16°C
(60°F)		13°C
(56°F)		10°C
(51°F)
Minimum8°C
(47°F)		8°C
(47°F)		10°C
(51°F)		11°C
(51°F)		16°C
(60°F)		16°C
(61°F)		16°C
(60°F)		15°C
(60°F)		16°C
(61°F)		14°C
(58°F)		12°C
(53°F)		9°C
(48°F)

Compare climate in San Juan Chamelco with other places

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

Monthly average precipitation in San Juan Chamelco, Guatemala

San Juan Chamelco usually has the most precipitation in June, September and October, with an average of 28 rainy days and 408 mm (16.0 inches) of precipitation per month. The driest months in San Juan Chamelco are February, March and April. On average, 104 mm (4.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Juan Chamelco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)165 (6.5)98 (3.9)112 (4.4)101 (4.0)252 (9.9)417 (16.4)255 (10.0)337 (13.3)378 (14.9)427 (16.8)333 (13.1)151 (5.9)
Average precipitation days (≥ 1 mm)161314142829262829282118

Monthly sunshine hours in San Juan Chamelco, Guatemala

The sunniest months in San Juan Chamelco are May, July and August, when the sun shines an average of 10 hours 6 minutes a day. Least sunny months in San Juan Chamelco: January, February and November receive an average of 8 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Juan Chamelco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours205260298305312281313314299281263266
Mean daily daylight hours11h 18m11h 37m12h 2m12h 28m12h 50m13h 1m12h 55m12h 36m12h 11m11h 45m11h 23m11h 12m

Solar UV radiation in San Juan Chamelco, Guatemala

San Juan Chamelco experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 14 - 15, 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 Chamelco UV Index data.

Average daily maximum UV levels by month for San Juan Chamelco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10121415141414141312109