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Monthly climate in Comunas, Puerto Rico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Comunas features a tropical monsoon climate (Am). Temperatures typically range between 25 °C (76 °F) and 27 °C (82 °F) through the year, but rarely can drop to 21 °C (71 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 1319 mm (51.9 inches) and receives 282 rainy days on the 1 mm (0.04 inches) threshold annually. Comunas enjoys an average of 3928 hours of sunshine throughout the year, and daylight varies from 11 hours 3 minutes to 13 hours 11 minutes per day.

Monthly average temperatures in Comunas, Puerto Rico

The warmest months in Comunas are August, September and October, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 25 to 25 °C (76 - 77 °F) throughout the day. On average each year, Comunas experiences 317 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 Comunas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		27°C
(80°F)		27°C
(82°F)		27°C
(82°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		29°C
(84°F)		28°C
(83°F)
Mean maximum27°C
(80°F)		26°C
(80°F)		26°C
(80°F)		27°C
(81°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)		27°C
(82°F)
Average high26°C
(79°F)		25°C
(78°F)		26°C
(78°F)		26°C
(79°F)		27°C
(80°F)		27°C
(82°F)		28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		28°C
(83°F)		27°C
(82°F)		27°C
(80°F)
Daily mean25°C
(77°F)		25°C
(76°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(82°F)		27°C
(81°F)		26°C
(80°F)		26°C
(78°F)
Average low24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(79°F)		25°C
(78°F)		25°C
(77°F)
Mean minimum23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		23°C
(73°F)		24°C
(75°F)		25°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		23°C
(74°F)
Minimum22°C
(72°F)		21°C
(71°F)		22°C
(73°F)		22°C
(73°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)

Compare climate in Comunas with other places

Compare temperature, precipitation, sunshine, UV index in Comunas, Puerto Rico with other places around the world.

Monthly average precipitation in Comunas, Puerto Rico

Comunas usually has the most precipitation in August, September and October, with an average of 27 rainy days and 174 mm (6.9 inches) of precipitation per month. The driest months in Comunas are January, February and April. On average, 58 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Comunas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)52 (2.0)54 (2.1)70 (2.8)69 (2.7)101 (4.0)103 (4.1)145 (5.7)148 (5.8)195 (7.7)179 (7.1)129 (5.1)75 (2.9)
Average precipitation days (≥ 1 mm)171921202525272728262522

Monthly sunshine hours in Comunas, Puerto Rico

The sunniest months in Comunas are May, July and August, when the sun shines an average of 11 hours 26 minutes a day. Least sunny months in Comunas: January, February and November receive an average of 9 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Comunas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours259304347348359344355349319315304319
Mean daily daylight hours11h 10m11h 32m12h 2m12h 33m12h 58m13h 11m13h 4m12h 41m12h 12m11h 42m11h 15m11h 3m

Solar UV radiation in Comunas, Puerto Rico

Comunas 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 9. For more detailed information, check out our hourly Comunas UV Index data.

Average daily maximum UV levels by month for Comunas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911131313131213141299