Costa Rica weather live forecast

Today's maximum temperature in Costa Rica is expected to be 27°C. Select a day from the live weather forecast for Costa Rica (San Jose) for more weather parameters.

Monday
17th Aug
27

18

5

5
Tuesday
18th Aug
23

19

3

7
Wednesday
19th Aug
22

19

4

6
Thursday
20th Aug
24

20

6

7
Friday
21st Aug
25

20

6

9

5-day weather forecast updated at 04:00 on Tuesday 18th August 2026 GMT

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Destination

The 5-day weather forecast for Costa Rica (San Jose) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

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Below are temperatures expected today at popular countries, regions and places in Costa Rica. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

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Costa Rica weather forecast by day

Below are the detailed weather forecasts for Costa Rica for the next 5 days. The forecasts shown are for San Jose and may not represent the whole of Costa Rica. Browse more destinations in Costa Rica to view more weather forecasts.

Costa Rica weather for Monday 17th August 2026

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 100% chance of some rain and a gentle breeze of 18 kph from the east.

27
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
5
UV index (Moderate)
100
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
18
kph wind from E

Costa Rica weather for Tuesday 18th August 2026

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 23°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 30-40 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 18 kph from the east.

23
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
97
% chance of some rain
<40
mm of rainfall expected
23
°C wind chill
18
kph wind from E

Costa Rica weather for Wednesday 19th August 2026

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 22°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 91% chance of some rain and a gentle breeze of 18 kph from the east.

22
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
91
% chance of some rain
<30
mm of rainfall expected
0
no heat & humidity
18
kph wind from E

Costa Rica weather for Thursday 20th August 2026

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 24°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a moderate breeze of 20 kph from the east.

24
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
79
% chance of some rain
<10
mm of rainfall expected
24
°C wind chill
20
kph wind from E

Costa Rica weather for Friday 21st August 2026

Expect isolated thunderstorms in Costa Rica with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 19 kph from the east.