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Monthly climate in Barillas, Guatemala

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Barillas features a subtropical climate (Cwb). Temperatures typically range between 16 °C (60 °F) and 20 °C (69 °F) through the year, but rarely can drop to 5 °C (42 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 2291 mm (90.2 inches) and receives 234 rainy days on the 1 mm (0.04 inches) threshold annually. Barillas enjoys an average of 3528 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 Barillas, Guatemala

The warmest months in Barillas are May, June and September, with daily mean temperatures ranging from 19 to 20 °C (67 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 16 to 17 °C (60 - 62 °F) throughout the day. On average each year, Barillas experiences 64 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 Barillas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum25°C
(78°F)		27°C
(82°F)		27°C
(81°F)		30°C
(86°F)		30°C
(86°F)		28°C
(83°F)		26°C
(79°F)		27°C
(82°F)		26°C
(79°F)		27°C
(81°F)		25°C
(77°F)		25°C
(77°F)
Mean maximum24°C
(76°F)		25°C
(77°F)		26°C
(79°F)		28°C
(82°F)		28°C
(83°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		24°C
(76°F)		24°C
(75°F)
Average high20°C
(69°F)		22°C
(71°F)		23°C
(73°F)		25°C
(77°F)		25°C
(78°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		23°C
(75°F)		22°C
(71°F)		21°C
(70°F)
Daily mean16°C
(60°F)		17°C
(62°F)		17°C
(63°F)		19°C
(67°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		17°C
(63°F)		16°C
(61°F)
Average low11°C
(52°F)		12°C
(53°F)		12°C
(54°F)		14°C
(57°F)		16°C
(60°F)		16°C
(61°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		15°C
(60°F)		14°C
(57°F)		12°C
(53°F)
Mean minimum7°C
(45°F)		8°C
(46°F)		8°C
(47°F)		10°C
(51°F)		13°C
(55°F)		14°C
(57°F)		12°C
(54°F)		12°C
(54°F)		13°C
(56°F)		12°C
(54°F)		9°C
(49°F)		8°C
(46°F)
Minimum5°C
(42°F)		5°C
(42°F)		7°C
(45°F)		8°C
(48°F)		11°C
(53°F)		12°C
(54°F)		11°C
(53°F)		11°C
(52°F)		12°C
(55°F)		11°C
(51°F)		9°C
(48°F)		6°C
(44°F)

Compare climate in Barillas with other places

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

Monthly average precipitation in Barillas, Guatemala

Barillas usually has the most precipitation in June, September and October, with an average of 26 rainy days and 386 mm (15.2 inches) of precipitation per month. The driest months in Barillas are February, March and December. On average, 63 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Barillas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)101 (4.0)57 (2.3)44 (1.7)98 (3.9)228 (9.0)579 (22.8)127 (5.0)222 (8.7)278 (10.9)300 (11.8)168 (6.6)89 (3.5)
Average precipitation days (≥ 1 mm)13128162728222625251814

Monthly sunshine hours in Barillas, Guatemala

The sunniest months in Barillas are March, July and August, when the sun shines an average of 10 hours 19 minutes a day. Least sunny months in Barillas: January, February and June receive an average of 8 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Barillas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours228274312311308278325321301289284291
Mean daily daylight hours11h 17m11h 37m12h 2m12h 29m12h 51m13h 2m12h 56m12h 36m12h 11m11h 45m11h 22m11h 11m

Solar UV radiation in Barillas, Guatemala

Barillas 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 Barillas UV Index data.

Average daily maximum UV levels by month for Barillas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111315151515151414131110