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Monthly climate in La Fortuna, Alajuela, Costa Rica

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification La Fortuna features a tropical savanna climate (Aw).Temperatures typically range between 22 °C (72 °F) and 24 °C (76 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 32 °C (91 °F).The average annual precipitation amounts to about 2505 mm (98.6 inches) and receives 256 rainy days on the 1 mm (0.04 inches) threshold annually.La Fortuna enjoys an average of 3272 hours of sunshine throughout the year, and daylight varies from 11 hours 30 minutes to 12 hours 42 minutes per day.

Monthly average temperatures in La Fortuna, Alajuela, Costa Rica §

The warmest months in La Fortuna are April, May and June, with daily mean temperatures ranging from 24 to 24 °C (76 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 22 to 23 °C (72 - 73 °F) throughout the day. On average each year, La Fortuna experiences 303 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 La Fortuna, Alajuela, Costa Rica.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 29°C
(84°F)		 31°C
(88°F)		 30°C
(87°F)		 32°C
(90°F)		 32°C
(91°F)		 31°C
(88°F)		 30°C
(87°F)		 31°C
(89°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(84°F)		 29°C
(84°F)
Mean maximum 28°C
(82°F)		 29°C
(84°F)		 30°C
(85°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(85°F)		 30°C
(87°F)		 30°C
(87°F)		 30°C
(85°F)		 28°C
(84°F)		 28°C
(82°F)
Average high 26°C
(78°F)		 27°C
(80°F)		 27°C
(81°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(81°F)		 28°C
(82°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(80°F)		 26°C
(79°F)
Daily mean 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(73°F)
Average low 19°C
(67°F)		 19°C
(67°F)		 20°C
(68°F)		 21°C
(70°F)		 22°C
(71°F)		 22°C
(71°F)		 21°C
(71°F)		 21°C
(71°F)		 21°C
(71°F)		 21°C
(70°F)		 21°C
(70°F)		 20°C
(68°F)
Mean minimum 17°C
(63°F)		 17°C
(63°F)		 18°C
(65°F)		 19°C
(66°F)		 21°C
(69°F)		 21°C
(70°F)		 20°C
(69°F)		 20°C
(69°F)		 20°C
(69°F)		 20°C
(68°F)		 19°C
(67°F)		 18°C
(65°F)
Minimum 16°C
(61°F)		 16°C
(62°F)		 17°C
(63°F)		 17°C
(64°F)		 19°C
(67°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(67°F)		 19°C
(66°F)		 17°C
(63°F)

Compare climate in La Fortuna with other places

Compare temperature, precipitation, sunshine, UV index in La Fortuna, Alajuela, Costa Rica with other places around the world.

Monthly average precipitation in La Fortuna, Alajuela, Costa Rica §

La Fortuna usually has the most precipitation in May, June and October, with an average of 28 rainy days and 340 mm (13.4 inches) of precipitation per month.The driest months in La Fortuna are February, March and April. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in La Fortuna, Alajuela, Costa Rica.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) 99 (3.9) 23 (0.9) 28 (1.1) 72 (2.8) 308 (12.1) 312 (12.3) 253 (10.0) 295 (11.6) 277 (10.9) 398 (15.7) 259 (10.2) 180 (7.1)
Average precipitation days (≥ 1 mm) 13 5 6 13 26 29 28 29 29 29 27 22

Monthly sunshine hours in La Fortuna, Alajuela, Costa Rica §

The sunniest months in La Fortuna are March, April and December, when the sun shines an average of 10 hours 16 minutes a day.Least sunny months in La Fortuna: August, September and October receive an average of 7 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in La Fortuna, Alajuela, Costa Rica.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 251 297 330 311 256 254 267 249 249 232 269 303
Mean daily daylight hours 11h 34m 11h 47m 12h 3m 12h 21m 12h 35m 12h 42m 12h 38m 12h 26m 12h 9m 11h 52m 11h 37m 11h 30m

Solar UV radiation in La Fortuna, Alajuela, Costa Rica §

La Fortuna experiences the highest level of ultraviolet (UV) radiation in March, April and May, 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 12. For more detailed information, check out our hourly La Fortuna UV Index data.

Average daily maximum UV levels by month for La Fortuna, Alajuela, Costa Rica.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) 12 13 15 15 14 14 14 13 13 14 11 10