San Juan: weather and best time to visit
San Juan (Puerto Rico) reaches its warmest daytime temperatures in August at around 31°C; the coolest month is January at around 28°C. The sea is warmest in September at about 29°C.
Best time to visit
- 🏖 Beach
- 🏛 City trip
- 🥾 Hiking
Things to do in San Juan
Tours, tickets and activities for your trip.
San Juan climate, month by month
| Month | Day °C | Night °C | Sea °C | Rain d | Sun h | Beach | City | Hiking |
|---|---|---|---|---|---|---|---|---|
| Jan | 28° | 21° | 27° | 16 | 11 | 78 | 61 | 45 |
| Feb | 28° | 21° | 26° | 18 | 11 | 78 | 60 | 44 |
| Mar | 29° | 21° | 26° | 17 | 11 | 78 | 57 | 41 |
| Apr | 29° | 22° | 27° | 22 | 12 | 78 | 55 | 39 |
| May | 30° | 23° | 27° | 25 | 12 | 79 | 52 | 36 |
| Jun | 31° | 24° | 28° | 21 | 12 | 78 | 48 | 32 |
| Jul | 31° | 25° | 28° | 26 | 12 | 78 | 48 | 32 |
| Aug | 31° | 25° | 29° | 23 | 12 | 78 | 48 | 32 |
| Sep | 31° | 25° | 29° | 25 | 11 | 79 | 49 | 33 |
| Oct | 30° | 24° | 29° | 28 | 10 | 79 | 52 | 36 |
| Nov | 29° | 23° | 28° | 24 | 10 | 79 | 57 | 41 |
| Dec | 28° | 22° | 27° | 20 | 11 | 78 | 60 | 44 |
Rain d = average rain days per month · Sun h = average sunshine hours per day · scores 0–100, higher is better.
Every month in detail
San Juan in January
Daytime highs around 28°C, nights near 21°C. January is the coldest month of the year. It is also the driest month of the year. Expect about 16 rain days and 11 hours of sunshine per day. The sea is properly warm at 27°C.
Beach: goodCity: goodHiking: mixedMore destinations for January →
San Juan in February
Daytime highs around 28°C, nights near 21°C. Expect about 18 rain days and 11 hours of sunshine per day. The sea is properly warm at 26°C.
Beach: goodCity: goodHiking: mixedMore destinations for February →
San Juan in March
Daytime highs around 29°C, nights near 21°C. Expect about 17 rain days and 11 hours of sunshine per day. The sea is properly warm at 26°C.
Beach: goodCity: mixedHiking: mixedMore destinations for March →
San Juan in April
Daytime highs around 29°C, nights near 22°C. Expect about 22 rain days and 12 hours of sunshine per day. The sea is properly warm at 27°C.
Beach: goodCity: mixedHiking: poorMore destinations for April →
San Juan in May
Daytime highs around 30°C, nights near 23°C. Expect about 25 rain days and 12 hours of sunshine per day. The sea is properly warm at 27°C.
Beach: goodCity: mixedHiking: poorMore destinations for May →
San Juan in June
Daytime highs around 31°C, nights near 24°C. No month gets more sunshine. Expect about 21 rain days and 12 hours of sunshine per day. The sea is properly warm at 28°C.
Beach: goodCity: mixedHiking: poorMore destinations for June →
San Juan in July
Daytime highs around 31°C, nights near 25°C. Expect about 26 rain days and 12 hours of sunshine per day. The sea is properly warm at 28°C.
Beach: goodCity: mixedHiking: poorMore destinations for July →
San Juan in August
Daytime highs around 31°C, nights near 25°C. August is the warmest month of the year. Expect about 23 rain days and 12 hours of sunshine per day. The sea is properly warm at 29°C.
Beach: goodCity: mixedHiking: poorMore destinations for August →
San Juan in September
Daytime highs around 31°C, nights near 25°C. The sea is at its warmest now. Expect about 25 rain days and 11 hours of sunshine per day. The sea is properly warm at 29°C.
Beach: goodCity: mixedHiking: poorMore destinations for September →
San Juan in October
Daytime highs around 30°C, nights near 24°C. It is the rainiest month of the year. Expect about 28 rain days and 10 hours of sunshine per day. The sea is properly warm at 29°C.
Beach: goodCity: mixedHiking: poorMore destinations for October →
San Juan in November
Daytime highs around 29°C, nights near 23°C. Expect about 24 rain days and 10 hours of sunshine per day. The sea is properly warm at 28°C.
Beach: goodCity: mixedHiking: mixedMore destinations for November →
San Juan in December
Daytime highs around 28°C, nights near 22°C. Expect about 20 rain days and 11 hours of sunshine per day. The sea is properly warm at 27°C.
Beach: goodCity: goodHiking: mixedMore destinations for December →
Related destinations
Similar climate: Le Gosier, Guadeloupe · Dickenson Bay, Antigua & Barbuda · Seven Mile Beach, Cayman Islands · Kralendijk, Caribbean Netherlands