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Monthly climate in San Rafael Petzal, Guatemala

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Rafael Petzal features a subtropical climate (Cwb). Temperatures typically range between 16 °C (61 °F) and 19 °C (67 °F) through the year, but rarely can drop to 6 °C (42 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1578 mm (62.1 inches) and receives 167 rainy days on the 1 mm (0.04 inches) threshold annually. San Rafael Petzal enjoys an average of 3586 hours of sunshine throughout the year, and daylight varies from 11 hours 12 minutes to 13 hours 0 minutes per day.

Monthly average temperatures in San Rafael Petzal, Guatemala

The warmest months in San Rafael Petzal are April, May and July, with daily mean temperatures ranging from 18 to 19 °C (65 - 67 °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 - 62 °F) throughout the day. On average each year, San Rafael Petzal experiences 129 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 Rafael Petzal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(82°F)		29°C
(85°F)		31°C
(88°F)		31°C
(88°F)		30°C
(87°F)		28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		26°C
(80°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)
Mean maximum26°C
(80°F)		27°C
(82°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		26°C
(78°F)		27°C
(80°F)		27°C
(80°F)		26°C
(79°F)		26°C
(79°F)		25°C
(78°F)		26°C
(78°F)
Average high23°C
(74°F)		25°C
(77°F)		26°C
(80°F)		27°C
(81°F)		26°C
(79°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)
Daily mean16°C
(61°F)		17°C
(63°F)		18°C
(65°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		18°C
(64°F)		17°C
(62°F)		16°C
(61°F)
Average low10°C
(50°F)		10°C
(51°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)		14°C
(58°F)		13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		13°C
(56°F)		12°C
(54°F)		10°C
(51°F)
Mean minimum7°C
(44°F)		7°C
(46°F)		7°C
(45°F)		9°C
(49°F)		12°C
(54°F)		12°C
(54°F)		10°C
(51°F)		11°C
(51°F)		11°C
(53°F)		11°C
(52°F)		9°C
(48°F)		7°C
(44°F)
Minimum6°C
(42°F)		6°C
(43°F)		6°C
(43°F)		8°C
(47°F)		10°C
(51°F)		11°C
(52°F)		9°C
(49°F)		10°C
(50°F)		10°C
(50°F)		10°C
(50°F)		7°C
(46°F)		6°C
(42°F)

Compare climate in San Rafael Petzal with other places

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

Monthly average precipitation in San Rafael Petzal, Guatemala

San Rafael Petzal usually has the most precipitation in June, September and October, with an average of 26 rainy days and 298 mm (11.7 inches) of precipitation per month. The driest months in San Rafael Petzal are January, February and March. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Rafael Petzal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)10 (0.4)6 (0.2)8 (0.3)35 (1.4)179 (7.0)341 (13.4)127 (5.0)245 (9.6)308 (12.1)246 (9.7)60 (2.4)14 (0.6)
Average precipitation days (≥ 1 mm)112722271925272493

Monthly sunshine hours in San Rafael Petzal, Guatemala

The sunniest months in San Rafael Petzal are March, July and August, when the sun shines an average of 10 hours 23 minutes a day. Least sunny months in San Rafael Petzal: January, February and June receive an average of 8 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Rafael Petzal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours247284321313308274325320294288297310
Mean daily daylight hours11h 18m11h 38m12h 2m12h 28m12h 50m13h 0m12h 55m12h 36m12h 11m11h 45m11h 23m11h 12m

Solar UV radiation in San Rafael Petzal, Guatemala

San Rafael Petzal experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 15 - 16, 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 San Rafael Petzal UV Index data.

Average daily maximum UV levels by month for San Rafael Petzal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111315161515151515131110