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Monthly climate in Arenal, Honduras

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Arenal features a tropical monsoon climate (Am). Temperatures typically range between 21 °C (69 °F) and 25 °C (78 °F) through the year, but rarely can drop to 11 °C (51 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1106 mm (43.6 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually. Arenal enjoys an average of 3470 hours of sunshine throughout the year, and daylight varies from 11 hours 13 minutes to 13 hours 0 minutes per day.

Monthly average temperatures in Arenal, Honduras

The warmest months in Arenal are April, May and June, with daily mean temperatures ranging from 25 to 25 °C (77 - 78 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 21 to 22 °C (69 - 71 °F) throughout the day. On average each year, Arenal experiences 297 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 Arenal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		38°C
(100°F)		37°C
(99°F)		35°C
(96°F)		34°C
(94°F)		35°C
(96°F)		35°C
(95°F)		35°C
(94°F)		31°C
(89°F)		32°C
(89°F)
Mean maximum31°C
(88°F)		33°C
(91°F)		34°C
(93°F)		36°C
(97°F)		36°C
(96°F)		33°C
(92°F)		33°C
(92°F)		33°C
(92°F)		34°C
(93°F)		33°C
(91°F)		30°C
(86°F)		30°C
(86°F)
Average high26°C
(80°F)		28°C
(83°F)		30°C
(86°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		29°C
(85°F)		26°C
(80°F)		26°C
(79°F)
Daily mean21°C
(69°F)		22°C
(71°F)		23°C
(73°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		22°C
(71°F)		21°C
(69°F)
Average low16°C
(62°F)		16°C
(62°F)		17°C
(63°F)		19°C
(67°F)		20°C
(69°F)		20°C
(69°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		18°C
(65°F)		17°C
(62°F)
Mean minimum13°C
(55°F)		13°C
(56°F)		14°C
(58°F)		16°C
(62°F)		17°C
(64°F)		18°C
(65°F)		17°C
(63°F)		17°C
(63°F)		18°C
(64°F)		17°C
(62°F)		16°C
(60°F)		13°C
(56°F)
Minimum11°C
(51°F)		12°C
(54°F)		13°C
(56°F)		15°C
(60°F)		15°C
(60°F)		17°C
(63°F)		17°C
(62°F)		17°C
(62°F)		17°C
(63°F)		16°C
(60°F)		14°C
(57°F)		12°C
(54°F)

Compare climate in Arenal with other places

Compare temperature, precipitation, sunshine, UV index in Arenal, Honduras with other places around the world.

Monthly average precipitation in Arenal, Honduras

Arenal usually has the most precipitation in June, October and November, with an average of 18 rainy days and 154 mm (6.1 inches) of precipitation per month. The driest months in Arenal are February, March and April. On average, 28 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arenal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)37 (1.5)23 (0.9)25 (1.0)37 (1.4)126 (5.0)131 (5.2)99 (3.9)122 (4.8)125 (4.9)205 (8.1)127 (5.0)49 (1.9)
Average precipitation days (≥ 1 mm)115571718151918201612

Monthly sunshine hours in Arenal, Honduras

The sunniest months in Arenal are May, July and August, when the sun shines an average of 10 hours 9 minutes a day. Least sunny months in Arenal: January, November and December receive an average of 8 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arenal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours223276310308317298314312299276260273
Mean daily daylight hours11h 19m11h 38m12h 2m12h 28m12h 50m13h 0m12h 54m12h 35m12h 11m11h 45m11h 23m11h 13m

Solar UV radiation in Arenal, Honduras

Arenal 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 / 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 Arenal UV Index data.

Average daily maximum UV levels by month for Arenal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11121415141414141313109