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Monthly climate in Tilaran, Costa Rica

Last updated: July 31, 2025

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, 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. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°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 maximum29°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 high27°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 mean23°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 low20°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 minimum18°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)
Minimum15°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, Costa Rica with other places around the world.

Monthly average precipitation in Tilaran, 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. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
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)612112528252629292314

Monthly sunshine hours in Tilaran, 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. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours256299333319266267296264257235286315
Mean daily daylight hours11h 34m11h 47m12h 3m12h 21m12h 35m12h 42m12h 38m12h 26m12h 9m11h 52m11h 37m11h 30m

Solar UV radiation in Tilaran, 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. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111314141414141313131110