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Monthly climate in Guayama, Puerto Rico

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Guayama features a tropical savanna climate (Aw).Temperatures typically range between 24 °C (76 °F) and 27 °C (81 °F) through the year, but rarely can drop to 21 °C (70 °F) or can rise to as high as 30 °C (86 °F).The average annual precipitation amounts to about 1233 mm (48.5 inches) and receives 275 rainy days on the 1 mm (0.04 inches) threshold annually.Guayama enjoys an average of 3924 hours of sunshine throughout the year, and daylight varies from 11 hours 3 minutes to 13 hours 10 minutes per day.

Monthly average temperatures in Guayama, Puerto Rico §

The warmest months in Guayama are July, August and September, with daily mean temperatures ranging from 27 to 27 °C (80 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 24 to 24 °C (76 - 76 °F) throughout the day. On average each year, Guayama experiences 312 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 Guayama, Puerto Rico.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 27°C
(81°F)		 27°C
(80°F)		 27°C
(81°F)		 28°C
(82°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(85°F)		 30°C
(86°F)		 29°C
(85°F)		 28°C
(83°F)		 28°C
(82°F)
Mean maximum 26°C
(80°F)		 26°C
(80°F)		 26°C
(80°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(85°F)		 30°C
(86°F)		 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)
Average high 26°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 27°C
(82°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(81°F)		 26°C
(80°F)
Daily mean 24°C
(76°F)		 24°C
(76°F)		 24°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
(80°F)		 26°C
(79°F)		 25°C
(77°F)
Average low 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(76°F)		 24°C
(75°F)
Mean minimum 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(73°F)
Minimum 21°C
(70°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(71°F)		 22°C
(73°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)

Compare climate in Guayama with other places

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

Monthly average precipitation in Guayama, Puerto Rico §

Guayama usually has the most precipitation in July, September and October, with an average of 26 rainy days and 165 mm (6.5 inches) of precipitation per month.The driest months in Guayama are January, February and March. On average, 55 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Guayama, Puerto Rico.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 48 (1.9) 51 (2.0) 64 (2.5) 67 (2.7) 97 (3.8) 92 (3.6) 139 (5.5) 134 (5.3) 190 (7.5) 165 (6.5) 119 (4.7) 67 (2.6)
Average precipitation days (≥ 1 mm) 17 19 20 21 24 24 26 25 27 26 23 23

Monthly sunshine hours in Guayama, Puerto Rico §

The sunniest months in Guayama are May, July and August, when the sun shines an average of 11 hours 26 minutes a day.Least sunny months in Guayama: January, February and November receive an average of 9 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Guayama, Puerto Rico.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 259 305 346 348 359 344 354 350 317 314 303 319
Mean daily daylight hours 11h 10m 11h 32m 12h 2m 12h 33m 12h 58m 13h 10m 13h 3m 12h 41m 12h 12m 11h 42m 11h 16m 11h 3m

Solar UV radiation in Guayama, Puerto Rico §

Guayama 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 Guayama UV Index data.

Average daily maximum UV levels by month for Guayama, Puerto Rico.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 11 13 13 13 13 13 13 14 12 9 9