Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Costa Rica features a humid subtropical climate (Cfa).Temperatures typically range between 18 °C (64 °F) and 26 °C (79 °F) through the year, but rarely can drop to 0 °C (32 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 1352 mm (53.2 inches) and receives 119 rainy days on the 1 mm (0.04 inches) threshold annually.Costa Rica enjoys an average of 3459 hours of sunshine throughout the year, and daylight varies from 10 hours 42 minutes to 13 hours 32 minutes per day.
The warmest months in Costa Rica are January, February and December, with daily mean temperatures ranging from 25 to 26 °C (78 - 79 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 18 to 20 °C (64 - 68 °F) throughout the day. On average each year, Costa Rica experiences 266 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 37°C (99°F) | 37°C (98°F) | 36°C (97°F) | 33°C (93°F) | 33°C (92°F) | 32°C (89°F) | 33°C (91°F) | 37°C (98°F) | 39°C (102°F) | 40°C (104°F) | 37°C (98°F) | 37°C (99°F) |
Mean maximum | 35°C (95°F) | 35°C (95°F) | 35°C (96°F) | 33°C (91°F) | 32°C (89°F) | 28°C (83°F) | 31°C (88°F) | 35°C (95°F) | 38°C (100°F) | 37°C (99°F) | 36°C (97°F) | 36°C (96°F) |
Average high | 31°C (88°F) | 31°C (88°F) | 31°C (87°F) | 28°C (83°F) | 25°C (78°F) | 24°C (75°F) | 25°C (77°F) | 26°C (79°F) | 31°C (87°F) | 30°C (86°F) | 30°C (87°F) | 31°C (88°F) |
Daily mean | 26°C (79°F) | 25°C (78°F) | 25°C (77°F) | 23°C (73°F) | 20°C (68°F) | 18°C (65°F) | 18°C (64°F) | 20°C (68°F) | 24°C (75°F) | 24°C (76°F) | 25°C (77°F) | 26°C (78°F) |
Average low | 22°C (72°F) | 21°C (70°F) | 21°C (69°F) | 18°C (64°F) | 15°C (60°F) | 14°C (58°F) | 12°C (54°F) | 14°C (58°F) | 18°C (64°F) | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) |
Mean minimum | 19°C (66°F) | 17°C (62°F) | 16°C (61°F) | 11°C (53°F) | 8°C (46°F) | 7°C (45°F) | 2°C (36°F) | 5°C (41°F) | 11°C (52°F) | 12°C (54°F) | 16°C (61°F) | 16°C (61°F) |
Minimum | 16°C (61°F) | 14°C (58°F) | 14°C (58°F) | 7°C (45°F) | 5°C (42°F) | 0°C (33°F) | -0°C (32°F) | 3°C (37°F) | 8°C (46°F) | 9°C (48°F) | 14°C (57°F) | 14°C (58°F) |
Compare temperature, precipitation, sunshine, UV index in Costa Rica, Mato Grosso do Sul, Brazil with other places around the world.
Costa Rica usually has the most precipitation in January, October and December, with an average of 14 rainy days and 184 mm (7.2 inches) of precipitation per month.The driest months in Costa Rica are April, July and September. On average, 48 mm (1.9 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 160 (6.3) | 131 (5.1) | 146 (5.8) | 63 (2.5) | 98 (3.9) | 88 (3.5) | 23 (0.9) | 94 (3.7) | 57 (2.2) | 176 (6.9) | 100 (3.9) | 216 (8.5) |
Average precipitation days (≥ 1 mm) | 16 | 14 | 13 | 7 | 9 | 8 | 3 | 6 | 6 | 13 | 10 | 14 |
The sunniest months in Costa Rica are March, November and December, when the sun shines an average of 10 hours 25 minutes a day.Least sunny months in Costa Rica: January, May and June receive an average of 8 hours 9 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 253 | 303 | 312 | 290 | 264 | 232 | 292 | 277 | 292 | 293 | 320 | 325 |
Mean daily daylight hours | 13h 22m | 12h 51m | 12h 11m | 11h 30m | 10h 57m | 10h 42m | 10h 50m | 11h 19m | 11h 57m | 12h 38m | 13h 14m | 13h 32m |
Costa Rica experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 15 - 15, which corresponds to the Extreme category of sun exposure.May, June and July are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. For more detailed information, check out our hourly Costa Rica UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 15 | 15 | 13 | 11 | 8 | 6 | 7 | 9 | 11 | 14 | 15 | 15 |