Costa Rica weather by month

Check out Costa Rica weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °C
23°C maximum daytime temperature in January in San Jose23
24°C maximum daytime temperature in February in San Jose24
25°C maximum daytime temperature in March in San Jose25
25°C maximum daytime temperature in April in San Jose25
25°C maximum daytime temperature in May in San Jose25
25°C maximum daytime temperature in June in San Jose25
24°C maximum daytime temperature in July in San Jose24
24°C maximum daytime temperature in August in San Jose24
24°C maximum daytime temperature in September in San Jose24
24°C maximum daytime temperature in October in San Jose24
24°C maximum daytime temperature in November in San Jose24
23°C maximum daytime temperature in December in San Jose23
Hours of sunshine (daily)
Days with some rainfall
12 days with some rainfall in January in San Jose12
9 days with some rainfall in February in San Jose9
8 days with some rainfall in March in San Jose8
10 days with some rainfall in April in San Jose10
19 days with some rainfall in May in San Jose19
24 days with some rainfall in June in San Jose24
23 days with some rainfall in July in San Jose23
24 days with some rainfall in August in San Jose24
24 days with some rainfall in September in San Jose24
23 days with some rainfall in October in San Jose23
18 days with some rainfall in November in San Jose18
16 days with some rainfall in December in San Jose16

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Costa Rica by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Costa Rica (San Jose) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Costa Rica destinations

Below are average maximum temperatures at popular countries, regions and places in Costa Rica for next month - February. Select a destination to see the climate guide for all months of the year.

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Metric (°C / mm)  |  Imperial (°F / inches)

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Costa Rica climate overview

Costa Rica lies in Central America and has both Caribbean and Pacific coastlines. Spanish architecture and language is all that remains from its colonial past. Today, the economy relies on light industry and agricultural exports, with coffee and bananas the main cash crops.

Running down the spine of the country is a series of volcanic mountain chains forming a high-altitude plateau. A few hissing volcanoes are still active as well as boiling mud pools, craters, and sulphur springs. Fertile volcanic soils support several types of forest, with lush tropical rainforest dominating.

The climate on the plateau is tropical and very wet for most of the year, although a brief drier winter period runs from December to April. Due to the altitude, temperatures are comfortable in the winter and warm, rather than hot, in the summer.

Eastward from the central mountains, a lowland plain runs down to the Caribbean Sea. Costa Rica's east coast has beautiful white sandy beaches but also miles of mangroves. The tropical climate produces rainfall in all months, and as a result, the eastern half of the country is also fairly cloudy. A combination of hot summer temperatures and high coastal humidity, make for oppressive conditions at times.

Extensive savannahs dominate the Pacific coastal plain. A huge national park in the north is home to a vast area of tropical rainforest, along with deciduous and non-deciduous forests, while the coastline itself is rugged. A well-defined sunny and dry winter spell runs from December to April, followed by a wet, hot and humid summer season.

Costa Rica weather averages

Temperature in Costa Rica (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
23°C maximum daytime temperature in January in Costa Rica (San Jose)23
24°C maximum daytime temperature in February in Costa Rica (San Jose)24
25°C maximum daytime temperature in March in Costa Rica (San Jose)25
25°C maximum daytime temperature in April in Costa Rica (San Jose)25
25°C maximum daytime temperature in May in Costa Rica (San Jose)25
25°C maximum daytime temperature in June in Costa Rica (San Jose)25
24°C maximum daytime temperature in July in Costa Rica (San Jose)24
24°C maximum daytime temperature in August in Costa Rica (San Jose)24
24°C maximum daytime temperature in September in Costa Rica (San Jose)24
24°C maximum daytime temperature in October in Costa Rica (San Jose)24
24°C maximum daytime temperature in November in Costa Rica (San Jose)24
23°C maximum daytime temperature in December in Costa Rica (San Jose)23
Min temperature (night-time)
15°C minimum night-time temperature in January in Costa Rica (San Jose)15
15°C minimum night-time temperature in February in Costa Rica (San Jose)15
16°C minimum night-time temperature in March in Costa Rica (San Jose)16
16°C minimum night-time temperature in April in Costa Rica (San Jose)16
17°C minimum night-time temperature in May in Costa Rica (San Jose)17
17°C minimum night-time temperature in June in Costa Rica (San Jose)17
17°C minimum night-time temperature in July in Costa Rica (San Jose)17
17°C minimum night-time temperature in August in Costa Rica (San Jose)17
17°C minimum night-time temperature in September in Costa Rica (San Jose)17
17°C minimum night-time temperature in October in Costa Rica (San Jose)17
16°C minimum night-time temperature in November in Costa Rica (San Jose)16
16°C minimum night-time temperature in December in Costa Rica (San Jose)16
Heat & Humidity
No heat & humidity in January in Costa Rica (San Jose)0
Low heat & humidity in February in Costa Rica (San Jose)L
Low heat & humidity in March in Costa Rica (San Jose)L
Low heat & humidity in April in Costa Rica (San Jose)L
Low heat & humidity in May in Costa Rica (San Jose)L
Low heat & humidity in June in Costa Rica (San Jose)L
Low heat & humidity in July in Costa Rica (San Jose)L
Low heat & humidity in August in Costa Rica (San Jose)L
Low heat & humidity in September in Costa Rica (San Jose)L
Low heat & humidity in October in Costa Rica (San Jose)L
No heat & humidity in November in Costa Rica (San Jose)0
No heat & humidity in December in Costa Rica (San Jose)0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Costa Rica

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
12 hours of daylight per day in January in Costa Rica (San Jose)12
12 hours of daylight per day in February in Costa Rica (San Jose)12
12 hours of daylight per day in March in Costa Rica (San Jose)12
12 hours of daylight per day in April in Costa Rica (San Jose)12
13 hours of daylight per day in May in Costa Rica (San Jose)13
13 hours of daylight per day in June in Costa Rica (San Jose)13
13 hours of daylight per day in July in Costa Rica (San Jose)13
12 hours of daylight per day in August in Costa Rica (San Jose)12
12 hours of daylight per day in September in Costa Rica (San Jose)12
12 hours of daylight per day in October in Costa Rica (San Jose)12
12 hours of daylight per day in November in Costa Rica (San Jose)12
12 hours of daylight per day in December in Costa Rica (San Jose)12
UV Index (Maximum)
UV (maximum) index 11 (Extreme) in January in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in February in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in March in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in April in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in May in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in June in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in July in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in August in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in September in Costa Rica (San Jose)11
UV (maximum) index 11+ (Extreme) in October in Costa Rica (San Jose)11
UV (maximum) index 11 (Extreme) in November in Costa Rica (San Jose)11
UV (maximum) index 10 (Very High) in December in Costa Rica (San Jose)10

Rainfall in Costa Rica

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Costa Rica (San Jose)12
9 days with some rainfall in February in Costa Rica (San Jose)9
8 days with some rainfall in March in Costa Rica (San Jose)8
10 days with some rainfall in April in Costa Rica (San Jose)10
19 days with some rainfall in May in Costa Rica (San Jose)19
24 days with some rainfall in June in Costa Rica (San Jose)24
23 days with some rainfall in July in Costa Rica (San Jose)23
24 days with some rainfall in August in Costa Rica (San Jose)24
24 days with some rainfall in September in Costa Rica (San Jose)24
23 days with some rainfall in October in Costa Rica (San Jose)23
18 days with some rainfall in November in Costa Rica (San Jose)18
16 days with some rainfall in December in Costa Rica (San Jose)16
Average monthly rainfall (mm)
6 mm monthly rainfall in January in Costa Rica (San Jose)6
7 mm monthly rainfall in February in Costa Rica (San Jose)7
9 mm monthly rainfall in March in Costa Rica (San Jose)9
56 mm monthly rainfall in April in Costa Rica (San Jose)56
261 mm monthly rainfall in May in Costa Rica (San Jose)261
296 mm monthly rainfall in June in Costa Rica (San Jose)296
205 mm monthly rainfall in July in Costa Rica (San Jose)205
282 mm monthly rainfall in August in Costa Rica (San Jose)282
372 mm monthly rainfall in September in Costa Rica (San Jose)372
343 mm monthly rainfall in October in Costa Rica (San Jose)343
155 mm monthly rainfall in November in Costa Rica (San Jose)155
36 mm monthly rainfall in December in Costa Rica (San Jose)36

Tropical storm risk: Costa Rica hurricane season

% of month affected by tropical storms
0
0
0
0
0
0
0
0
0
0
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Costa Rica weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Costa Rica (San Jose) and the UK (London).

Maximum daytime temperature (°C)

Costa Rica (San Jose)
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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