nomadseason

Monthly climate in Santiago, San José, Costa Rica

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Santiago features a tropical monsoon climate (Am).Temperatures typically range between 21 °C (70 °F) and 22 °C (72 °F) through the year, but rarely can drop to 15 °C (60 °F) or can rise to as high as 28 °C (83 °F).The average annual precipitation amounts to about 5792 mm (228.0 inches) and receives 324 rainy days on the 1 mm (0.04 inches) threshold annually.Santiago enjoys an average of 2922 hours of sunshine throughout the year, and daylight varies from 11 hours 32 minutes to 12 hours 40 minutes per day.

Monthly average temperatures in Santiago, San José, Costa Rica §

The warmest months in Santiago are March, April and June, with daily mean temperatures ranging from 22 to 22 °C (72 - 72 °F) throughout the day. The coldest temperatures usually occur in January, October and November, when daily mean temperatures range from 21 to 21 °C (70 - 71 °F) throughout the day. On average each year, Santiago experiences 216 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 Santiago, San José, 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 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 28°C
(82°F)		 27°C
(82°F)		 27°C
(81°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(80°F)
Mean maximum 27°C
(80°F)		 27°C
(81°F)		 27°C
(82°F)		 27°C
(82°F)		 27°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(81°F)		 26°C
(80°F)		 26°C
(79°F)
Average high 25°C
(77°F)		 26°C
(79°F)		 26°C
(79°F)		 26°C
(79°F)		 25°C
(78°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)
Daily mean 21°C
(71°F)		 22°C
(71°F)		 22°C
(72°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
(70°F)		 21°C
(71°F)		 21°C
(71°F)
Average low 18°C
(65°F)		 18°C
(65°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(68°F)		 20°C
(68°F)		 20°C
(67°F)		 19°C
(67°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(66°F)		 19°C
(66°F)
Mean minimum 16°C
(62°F)		 16°C
(62°F)		 17°C
(63°F)		 17°C
(64°F)		 18°C
(65°F)		 18°C
(66°F)		 18°C
(65°F)		 18°C
(64°F)		 18°C
(64°F)		 18°C
(64°F)		 17°C
(63°F)		 17°C
(63°F)
Minimum 15°C
(60°F)		 15°C
(60°F)		 16°C
(61°F)		 17°C
(63°F)		 17°C
(64°F)		 18°C
(64°F)		 18°C
(64°F)		 18°C
(64°F)		 17°C
(63°F)		 17°C
(63°F)		 17°C
(62°F)		 16°C
(62°F)

Compare climate in Santiago with other places

Compare temperature, precipitation, sunshine, UV index in Santiago, San José, Costa Rica with other places around the world.

Monthly average precipitation in Santiago, San José, Costa Rica §

Santiago usually has the most precipitation in August, September and October, with an average of 30 rainy days and 830 mm (32.7 inches) of precipitation per month.The driest months in Santiago are January, February and March. On average, 85 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santiago, San José, 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) 116 (4.6) 65 (2.5) 74 (2.9) 253 (10.0) 706 (27.8) 651 (25.6) 682 (26.9) 762 (30.0) 853 (33.6) 873 (34.4) 503 (19.8) 253 (10.0)
Average precipitation days (≥ 1 mm) 19 18 17 29 31 30 31 31 30 30 30 28

Monthly sunshine hours in Santiago, San José, Costa Rica §

The sunniest months in Santiago are February, March and December, when the sun shines an average of 10 hours 10 minutes a day.Least sunny months in Santiago: August, September and October receive an average of 6 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santiago, San José, 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 253 298 329 294 220 214 203 194 201 186 227 297
Mean daily daylight hours 11h 36m 11h 48m 12h 3m 12h 20m 12h 33m 12h 40m 12h 36m 12h 24m 12h 9m 11h 53m 11h 39m 11h 32m

Solar UV radiation in Santiago, San José, Costa Rica §

Santiago 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 11. For more detailed information, check out our hourly Santiago UV Index data.

Average daily maximum UV levels by month for Santiago, San José, 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 15 14 14 13 13 13 11 10