Costa Rica benefits from a perfect tropical, never-ending-spring climate. The average temperature is 70°F (around 21°C) in the highlands. Lowland temperatures range from the high 70’s to the low 90’s (21 to 28°C). The rainy season goes from May to November, whilst the dry season lasts from December to April.

However, consider that even during the rainy season mornings are, more often than not, bright and sunny; expect as well occasional showers during the dry season.

Temperatures vary little between seasons; the main influence on temperature is altitude. Pack rain gear with you, as well as light sweaters or jackets for mountainous sites such as Monteverde or the Savegre Valley. Also do not forget humidity (in some regions, like in the Caribbean or in Sarapiquí, it can reach 90%). Hydration is important in the area, since you will surely sweat!

National Meteorological Institute: www.imn.ac.cr

san jose costa rica weather
san-jose-costa-rica-sun-rain-sunshine-rainfall
san jose costa rica temperature

Sunny Season in the different regions of Costa Rica

North Pacific Coast:

December to April

Nicoya Peninsula

December to April

Central Pacific Coast

December to April

Central Valley

December to April

Arenal Volcano & Northern Lowlands

May to November
(September & October best to see volcano)

Monteverde (Area)

January to May
November (windy)
December (windy)

Caribbean North (w/ Tortuguero)

February, March, September & October
Caribbean South (w/ Puerto Viejo)

February, March, September & October

Osa Pennisula & Drake Bay

December to April

San Jose Highlands

December to April

San Jose Metro (w/ Airport Area)

December to April

Southern Costa Rica (w/ Golfito)

December to April

Rincon de la Vieja Area

December to April
.

Caribbean Coast and North Area

Caribbean Coast and Plains, Northern Area and Arenal Volcano Region

Monthly Rainfall Average

January 650mm
February 625mm
March 350mm
April 370mm
May 500mm
June 550mm
July 950mm
August 750mm
September 400mm
October 550mm
November 800mm
December 1250mm
mm

North Pacific Coast

Guanacaste, Nicoya Peninsula and Central Pacific, up to Carara

Monthly Rainfall Average

January 150mm
February 0mm
March 0mm
April 0mm
May 500mm
June 550mm
July 600mm
August 750mm
September 800mm
October 950mm
November 400mm
December 200mm
mm

Guanacaste Mountains

Rincon de la Vieja, Monteverde, Miravalles Volcano

Monthly Rainfall Average

January 350mm
February 225mm
March 100mm
April 50mm
May 250mm
June 500mm
July 650mm
August 750mm
September 800mm
October 850mm
November 500mm
December 350mm
mm

Central and South Pacific Coast

Manuel Antonio, Corcovado, Jimenez and Golfo Dulce

Monthly Rainfall Average

January 50mm
February 0mm
March 0mm
April 0mm
May 500mm
June 550mm
July 600mm
August 750mm
September 800mm
October 950mm
November 400mm
December 200mm
mm