Best Time to Visit San Jose
Costa Rica · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit San Jose are January, February and December, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
San Jose sees its warmest weather in April, when daytime highs average around 32°C, and its coolest in November (around 29°C).
Annual precipitation totals roughly 1668mm — September is typically the wettest month (~296mm) and January the driest (~11mm).
A distinctly wetter period runs from May to November — worth planning around if you prefer dry days.
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 37 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 29° / 16°C | 11mm | 🌟 Great |
| February | 30° / 16°C | 14mm | 👍 Good |
| March | 31° / 16°C | 13mm | 👍 Good |
| April | 32° / 17°C | 69mm | 👍 Good |
| May | 31° / 17°C | 244mm | ⚠️ Challenging |
| June | 30° / 17°C | 221mm | ⚠️ Challenging |
| July | 30° / 17°C | 150mm | 🤔 Fair |
| August | 30° / 17°C | 201mm | 🤔 Fair |
| September | 30° / 17°C | 296mm | 🤔 Fair |
| October | 29° / 16°C | 290mm | 🤔 Fair |
| November | 29° / 16°C | 135mm | 🤔 Fair |
| December | 29° / 16°C | 25mm | 🌟 Great |
FAQ
- What is the best time to visit San Jose?
- Based on 30 years of climate data, the most comfortable months to visit San Jose are January, February and December, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in San Jose?
- April is typically the hottest month in San Jose, with average daytime highs around 32°C.
- What is the rainiest month in San Jose?
- September is usually the wettest month, with around 296mm of precipitation.