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Monthly climate in Guanaja, Honduras

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Guanaja features a tropical monsoon climate (Am). Temperatures typically range between 25 °C (78 °F) and 28 °C (83 °F) through the year, but rarely can drop to 22 °C (72 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 1253 mm (49.3 inches) and receives 181 rainy days on the 1 mm (0.04 inches) threshold annually. Guanaja enjoys an average of 3763 hours of sunshine throughout the year, and daylight varies from 11 hours 9 minutes to 13 hours 4 minutes per day.

Monthly average temperatures in Guanaja, Honduras

The warmest months in Guanaja are June, August and September, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, Guanaja experiences 323 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 Guanaja. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(83°F)		29°C
(84°F)		28°C
(83°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		29°C
(85°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		29°C
(84°F)		29°C
(84°F)
Mean maximum28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		28°C
(83°F)		28°C
(82°F)
Average high26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		27°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		28°C
(83°F)		27°C
(81°F)		27°C
(80°F)
Daily mean25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		27°C
(81°F)		28°C
(82°F)		28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		27°C
(82°F)		26°C
(80°F)		26°C
(79°F)
Average low25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		27°C
(81°F)		27°C
(82°F)		27°C
(80°F)		26°C
(79°F)		25°C
(77°F)
Mean minimum23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		25°C
(78°F)		25°C
(77°F)		24°C
(75°F)
Minimum23°C
(73°F)		23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		26°C
(78°F)		26°C
(79°F)		25°C
(78°F)		24°C
(75°F)		22°C
(72°F)

Compare climate in Guanaja with other places

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

Monthly average precipitation in Guanaja, Honduras

Guanaja usually has the most precipitation in October, November and December, with an average of 22 rainy days and 231 mm (9.1 inches) of precipitation per month. The driest months in Guanaja are March, April and May. On average, 36 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Guanaja. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)110 (4.3)56 (2.2)51 (2.0)29 (1.1)27 (1.1)52 (2.1)91 (3.6)80 (3.2)62 (2.5)275 (10.8)261 (10.3)157 (6.2)
Average precipitation days (≥ 1 mm)1614117711191713222321

Monthly sunshine hours in Guanaja, Honduras

The sunniest months in Guanaja are May, July and August, when the sun shines an average of 10 hours 56 minutes a day. Least sunny months in Guanaja: January, February and November receive an average of 9 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Guanaja. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours249292328329343325336337327303288301
Mean daily daylight hours11h 15m11h 36m12h 2m12h 30m12h 53m13h 4m12h 58m12h 38m12h 11m11h 44m11h 20m11h 9m

Solar UV radiation in Guanaja, Honduras

Guanaja experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 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 Guanaja UV Index data.

Average daily maximum UV levels by month for Guanaja. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10121314131313131312108