Weather & climate · San Juan
Best Time to Visit Puerto Rico
December to March
The best time to visit Puerto Rico is December to March, when daytime highs in San Juan are around 27–28°C. April to July and November are also a good time to go. August is the warmest month (30°C by day), February the coldest (23°C at night), and September the wettest with about 162 mm of rain.
30°C
Warmest: August
23°C
Coldest nights: February
1207 mm
Rain per year
162 mm
Wettest: September
Puerto Rico weather by month
- Jan27°C23°C51 mm
- Feb28°C23°C45 mm
- Mar28°C23°C61 mm
- Apr29°C24°C77 mm
- May29°C25°C129 mm
- Jun30°C26°C90 mm
- Jul30°C26°C100 mm
- Aug30°C26°C130 mm
- Sep30°C26°C162 mm
- Oct29°C26°C161 mm
- Nov28°C25°C137 mm
- Dec28°C24°C64 mm
Best time Good Less ideal
| Month | High | Low | Rain | Humidity | Cloud cover | Verdict |
|---|---|---|---|---|---|---|
| January | 27°C | 23°C | 51 mm | 77% | 63% | Best time |
| February | 28°C | 23°C | 45 mm | 75% | 61% | Best time |
| March | 28°C | 23°C | 61 mm | 73% | 63% | Best time |
| April | 29°C | 24°C | 77 mm | 74% | 64% | Good |
| May | 29°C | 25°C | 129 mm | 77% | 74% | Good |
| June | 30°C | 26°C | 90 mm | 79% | 72% | Good |
| July | 30°C | 26°C | 100 mm | 79% | 67% | Good |
| August | 30°C | 26°C | 130 mm | 79% | 66% | Fair |
| September | 30°C | 26°C | 162 mm | 79% | 68% | Rainy |
| October | 29°C | 26°C | 161 mm | 80% | 67% | Rainy |
| November | 28°C | 25°C | 137 mm | 80% | 65% | Good |
| December | 28°C | 24°C | 64 mm | 79% | 61% | Best time |
Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around San Juan (18.47, -66.12). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Puerto Rico have their own climate.
Frequently asked questions
When is the best time to visit Puerto Rico?
December to March. The best time to visit Puerto Rico is December to March, when daytime highs in San Juan are around 27–28°C. April to July and November are also a good time to go. August is the warmest month (30°C by day), February the coldest (23°C at night), and September the wettest with about 162 mm of rain.
What is the hottest month in Puerto Rico?
August, with average highs of 30°C in San Juan.
What is the coldest month in Puerto Rico?
February, when nights drop to about 23°C and days reach 28°C.
What is the rainiest month in Puerto Rico?
September with about 162 mm; February is the driest (45 mm).
When should I avoid visiting Puerto Rico?
September is the least comfortable month on average: 30°C by day and 162 mm of rain.