San Jose, Costa Rica Weather
San Jose hourly forecast: next 24 hours
Today's high of 75°F (24°C) is right in line with the typical August high of 77°F (25°C).
Current conditions in detail
San Jose weather tomorrow (Friday, August 7)
Tomorrow in San Jose looks mist, with a high of 78° and an overnight low of 60°. There is a 76% chance of rain - plan accordingly. Winds top out near 5 mph, and the UV index reaches 10 (very high).
San Jose 14-day forecast
About the weather in San Jose
Located in Costa Rica, San Jose experiences a tropical wet-and-dry climate with year-round warmth split between a rainy season and a pronounced dry season. Afternoon temperatures peak near 80°F (27°C) in April and dip to about 75°F (24°C) in October, with around 120.3 inches (3055 mm) of precipitation falling across the year.
San Jose weather: quick facts
- Hottest month: April - highs near 80°F (27°C)
- Coldest month: October - highs near 75°F (24°C)
- Record high: 88°F (31°C) · Record low: 53°F (12°C) (2015–2024)
- Wettest month: October (29 rainy days) · Sunniest: February (11.3 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on April. Highs average 80°F (27°C) and overnight lows stay near 63°F (17°C). The coolest month is October, with typical highs of 75°F (24°C) and lows around 62°F (16°C). Based on 2015–2024 weather data, temperatures have reached as high as 88°F (31°C) and dropped as low as 53°F (12°C).
Rain, sun and snow
October is usually the wettest month. It brings about 21.1 inches (535 mm) of rain over 29 days, while March is the driest. February brings the most sunshine, averaging 11.3 hours of sun a day.
Season by season
March through May
March through May in San Jose is pleasantly warm, with daytime highs averaging 80°F (26°C) and nights around 62°F (17°C); expect showers on roughly 52 days across the season.
June through August
June through August in San Jose is mild and warm, with daytime highs averaging 76°F (25°C) and nights around 63°F (17°C); expect showers on roughly 79 days across the season.
September through November
September through November in San Jose is pleasantly warm, with daytime highs averaging 76°F (24°C) and nights around 62°F (17°C); expect showers on roughly 83 days across the season.
December through February
December through February in San Jose brings comfortable warmth, with daytime highs averaging 77°F (25°C) and nights around 61°F (16°C); expect showers on roughly 27 days across the season.
Average temperatures in San Jose by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 77° | 61° | 8 | 1.9 in | 10.7 h/day | 73% |
| February | 79° | 61° | 6 | 1.4 in | 11.3 h/day | 68% |
| March | 80° | 62° | 8 | 1.3 in | 11.2 h/day | 68% |
| April | 80° | 63° | 17 | 4.5 in | 10.4 h/day | 74% |
| May | 78° | 63° | 27 | 15.0 in | 8.5 h/day | 85% |
| June | 76° | 63° | 28 | 14.3 in | 8.1 h/day | 88% |
| July | 76° | 63° | 24 | 12.1 in | 8.3 h/day | 84% |
| August | 77° | 63° | 27 | 15.0 in | 8.5 h/day | 86% |
| September | 77° | 62° | 29 | 16.6 in | 8.2 h/day | 89% |
| October | 75° | 62° | 29 | 21.1 in | 7.8 h/day | 90% |
| November | 75° | 62° | 25 | 13.5 in | 8.1 h/day | 87% |
| December | 76° | 62° | 13 | 3.5 in | 10.1 h/day | 78% |