Best Time to Visit San Juan
Puerto Rico · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit San Juan are January, February and March, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
San Juan sees its warmest weather in September, when daytime highs average around 32°C, and its coolest in January (around 29°C).
Annual precipitation totals roughly 1521mm — November is typically the wettest month (~187mm) and March the driest (~55mm).
A distinctly wetter period runs from April to December — 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 36 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 29° / 22°C | 103mm | 👍 Good |
| February | 29° / 22°C | 66mm | 👍 Good |
| March | 29° / 22°C | 55mm | 👍 Good |
| April | 30° / 23°C | 117mm | 🤔 Fair |
| May | 31° / 24°C | 141mm | 🤔 Fair |
| June | 32° / 25°C | 118mm | 🤔 Fair |
| July | 32° / 25°C | 153mm | 🤔 Fair |
| August | 32° / 25°C | 160mm | 🤔 Fair |
| September | 32° / 25°C | 165mm | ⚠️ Challenging |
| October | 32° / 25°C | 132mm | 🤔 Fair |
| November | 30° / 24°C | 187mm | 🤔 Fair |
| December | 29° / 23°C | 123mm | 👍 Good |
FAQ
- What is the best time to visit San Juan?
- Based on 30 years of climate data, the most comfortable months to visit San Juan are January, February and March, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in San Juan?
- September is typically the hottest month in San Juan, with average daytime highs around 32°C.
- What is the rainiest month in San Juan?
- November is usually the wettest month, with around 187mm of precipitation.