San Juan: Weather Guide & Climate
Complete month-by-month weather guide: San Juan. Best time to visit: December, January, February, March, April. Plan your trip with detailed climate data.
Climate Overview
San Juan has a tropical climate with average yearly highs of 30°C, lows of 24°C, and approximately 21 rainy days per month.
The best time to visit San Juan is during December, January, February, March, April, when humidity is lower and there are fewer rain showers
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Air Quality
Best Time
Dec, Jan, Feb, Mar, Apr
Hottest
Coldest
Driest Month
Forecast for your trip dates
Up to 16 days ahead| Month | High | Low | Rainy days | Condition |
|---|---|---|---|---|
| January | 27°C | 22°C | 26 | Excellent (best) |
| February | 28°C | 22°C | 15 | Excellent (best) |
| March | 27°C | 22°C | 25 | Excellent (best) |
| April | 30°C | 23°C | 18 | Excellent (best) |
| May | 33°C | 24°C | 12 | Good |
| June | 32°C | 25°C | 19 | Wet |
| July | 32°C | 25°C | 25 | Wet |
| August | 31°C | 25°C | 16 | Wet |
| September | 31°C | 25°C | 27 | Wet |
| October | 30°C | 24°C | 26 | Wet |
| November | 29°C | 23°C | 22 | Wet |
| December | 28°C | 22°C | 16 | Excellent (best) |
Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025
Weather by Season
Winter
Dec–Feb
High: 28°C
Low: 22°C
Rainy days: 19 days/month
Spring
Mar–May
High: 30°C
Low: 23°C
Rainy days: 18 days/month
Summer
Jun–Aug
High: 32°C
Low: 25°C
Rainy days: 20 days/month
Autumn
Sep–Nov
High: 30°C
Low: 24°C
Rainy days: 25 days/month
Month-by-Month Weather Table
January
BestFebruary
BestMarch
BestApril
BestMay
June
July
August
September
October
November
December
Best| Month | High | Low | Rainy days | Condition | View Details |
|---|---|---|---|---|---|
| January (best) | 27°C | 22°C | 26 | Excellent | View Details → |
| February (best) | 28°C | 22°C | 15 | Excellent | View Details → |
| March (best) | 27°C | 22°C | 25 | Excellent | View Details → |
| April (best) | 30°C | 23°C | 18 | Excellent | View Details → |
| May | 33°C | 24°C | 12 | Good | View Details → |
| June | 32°C | 25°C | 19 | Wet | View Details → |
| July | 32°C | 25°C | 25 | Wet | View Details → |
| August | 31°C | 25°C | 16 | Wet | View Details → |
| September | 31°C | 25°C | 27 | Wet | View Details → |
| October | 30°C | 24°C | 26 | Wet | View Details → |
| November | 29°C | 23°C | 22 | Wet | View Details → |
| December (best) | 28°C | 22°C | 16 | Excellent | View Details → |
San Juan
Caribbean capital with 500-year-old colonial Old San Juan, historic Spanish forts, vibrant beaches like Condado and Isla Verde, El Yunque rainforest, bioluminescent bays, and rich Puerto Rican culture blending Spanish, African, and Taíno influences.
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Get strategic travel tips, seasonal insights, and expert recommendations.
Common Questions
What type of climate does San Juan have?
San Juan has a Tropical climate with average yearly temperatures of 30°C (highs) and 24°C (lows).
When is the best time to visit San Juan?
The best time to visit San Juan is during December, January, February, March, April, when temperatures average around 27°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in San Juan?
The hottest month in San Juan is May with average highs of 33°C, while the coldest is January with average lows of 22°C.
When is the rainy season in San Juan?
San Juan sees the most rain in September (27 rainy days), while May is the driest month (12 rainy days).
More San Juan Guides
Best Time to Visit
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Things to Do
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Itineraries
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Overview
Complete travel guide for San Juan: top things to do, itineraries, and typical costs.