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Monthly climate in Tilaran, Guanacaste, Costa Rica

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Tilaran features a tropical savanna climate (Aw).Temperatures typically range between 23 °C (74 °F) and 25 °C (77 °F) through the year, but rarely can drop to 15 °C (60 °F) or can rise to as high as 33 °C (92 °F).The average annual precipitation amounts to about 1954 mm (76.9 inches) and receives 219 rainy days on the 1 mm (0.04 inches) threshold annually.Tilaran enjoys an average of 3397 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 Tilaran, Guanacaste, Costa Rica §

The warmest months in Tilaran are April, May and June, with daily mean temperatures ranging from 25 to 25 °C (76 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 23 to 24 °C (74 - 75 °F) throughout the day. On average each year, Tilaran experiences 319 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 Tilaran, Guanacaste, 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 30°C
(86°F)		 33°C
(91°F)		 32°C
(90°F)		 33°C
(92°F)		 33°C
(91°F)		 31°C
(88°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(89°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(86°F)
Mean maximum 29°C
(84°F)		 30°C
(87°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(87°F)		 30°C
(86°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)
Average high 27°C
(80°F)		 28°C
(82°F)		 28°C
(83°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(82°F)		 28°C
(83°F)		 29°C
(84°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(80°F)
Daily mean 23°C
(74°F)		 24°C
(75°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)
Average low 20°C
(69°F)		 20°C
(69°F)		 21°C
(69°F)		 21°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(71°F)		 21°C
(71°F)		 21°C
(71°F)		 21°C
(70°F)
Mean minimum 18°C
(65°F)		 18°C
(65°F)		 19°C
(66°F)		 20°C
(67°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(70°F)		 21°C
(69°F)		 21°C
(70°F)		 20°C
(69°F)		 20°C
(68°F)		 19°C
(66°F)
Minimum 15°C
(60°F)		 18°C
(64°F)		 18°C
(64°F)		 18°C
(65°F)		 20°C
(69°F)		 20°C
(69°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)

Compare climate in Tilaran with other places

Compare temperature, precipitation, sunshine, UV index in Tilaran, Guanacaste, Costa Rica with other places around the world.

Monthly average precipitation in Tilaran, Guanacaste, Costa Rica §

Tilaran usually has the most precipitation in June, August and October, with an average of 27 rainy days and 317 mm (12.5 inches) of precipitation per month.The driest months in Tilaran are January, February and March. On average, 15 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tilaran, Guanacaste, 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) 27 (1.1) 8 (0.3) 9 (0.4) 54 (2.1) 264 (10.4) 290 (11.4) 159 (6.3) 275 (10.8) 265 (10.4) 385 (15.2) 159 (6.2) 57 (2.2)
Average precipitation days (≥ 1 mm) 6 1 2 11 25 28 25 26 29 29 23 14

Monthly sunshine hours in Tilaran, Guanacaste, Costa Rica §

The sunniest months in Tilaran are March, April and December, when the sun shines an average of 10 hours 31 minutes a day.Least sunny months in Tilaran: January, September and October receive an average of 8 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tilaran, Guanacaste, 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 256 299 333 319 266 267 296 264 257 235 286 315
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 Tilaran, Guanacaste, Costa Rica §

Tilaran experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 14, 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 Tilaran UV Index data.

Average daily maximum UV levels by month for Tilaran, Guanacaste, 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) 11 13 14 14 14 14 14 13 13 13 11 10