San José: Weather Guide & Climate
Complete month-by-month weather guide: San José. Best time to visit: December, January, February, March, April. Plan your trip with detailed climate data.
Climate Overview
San José has a warm climate with average yearly highs of 25°C, lows of 17°C, and approximately 20 rainy days per month.
The best time to visit San José is during December, January, February, March, April, when temperatures are comfortable and rainfall is moderate
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Air Quality
Best Time
Dec, Jan, Feb, Mar, Apr
Hottest
Coldest
Driest Month
Forecast for your trip dates
Up to 16 days ahead| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 25°C | 17°C | 9 | Excellent (best) |
| February | 26°C | 16°C | 2 | Excellent (best) |
| March | 27°C | 16°C | 2 | Excellent (best) |
| April | 28°C | 17°C | 18 | Excellent (best) |
| May | 26°C | 18°C | 27 | Wet |
| June | 25°C | 17°C | 28 | Wet |
| July | 25°C | 17°C | 20 | Wet |
| August | 25°C | 17°C | 27 | Wet |
| September | 25°C | 16°C | 30 | Wet |
| October | 24°C | 17°C | 29 | Wet |
| November | 23°C | 17°C | 28 | Wet |
| December | 24°C | 16°C | 14 | Excellent (best) |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
Weather by Season
Winter
Dec–Feb
High: 25°C
Low: 16°C
Rainy days: 8 days/month
Spring
Mar–May
High: 27°C
Low: 17°C
Rainy days: 16 days/month
Summer
Jun–Aug
High: 25°C
Low: 17°C
Rainy days: 25 days/month
Autumn
Sep–Nov
High: 24°C
Low: 17°C
Rainy days: 29 days/month
Month-by-Month Weather Table
January
BestFebruary
BestMarch
BestApril
BestMay
June
July
August
September
October
November
December
Best| Month | High | Low | Rainy days | Condition | View Details |
|---|---|---|---|---|---|
| January (best) | 25°C | 17°C | 9 | Excellent | View Details → |
| February (best) | 26°C | 16°C | 2 | Excellent | View Details → |
| March (best) | 27°C | 16°C | 2 | Excellent | View Details → |
| April (best) | 28°C | 17°C | 18 | Excellent | View Details → |
| May | 26°C | 18°C | 27 | Wet | View Details → |
| June | 25°C | 17°C | 28 | Wet | View Details → |
| July | 25°C | 17°C | 20 | Wet | View Details → |
| August | 25°C | 17°C | 27 | Wet | View Details → |
| September | 25°C | 16°C | 30 | Wet | View Details → |
| October | 24°C | 17°C | 29 | Wet | View Details → |
| November | 23°C | 17°C | 28 | Wet | View Details → |
| December (best) | 24°C | 16°C | 14 | Excellent | View Details → |
San José
Costa Rica gateway to rainforests, volcanoes, zip-lining, sloths, beaches, and pura vida lifestyle.
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Common Questions
What type of climate does San José have?
San José has a Warm climate with average yearly temperatures of 25°C (highs) and 17°C (lows).
When is the best time to visit San José?
The best time to visit San José is during December, January, February, March, April, when temperatures average around 25°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in San José?
The hottest month in San José is April with average highs of 28°C, while the coldest is February with average lows of 16°C.
When is the rainy season in San José?
San José sees the most rain in September (30 rainy days), while February is the driest month (2 rainy days).
More San José Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for San José: top things to do, itineraries, and typical costs.