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 25°C, and approximately 14 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
Drier season: Jan–Dec Wetter season: Apr–Nov
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Air Quality
Hottest
Coldest
Driest Month
Windiest Month
23 km/h
July (gusts 42)
Sea Temp Range
27° – 30°C
Warmest water: August (30°C)
Best for swimming: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec (27°–30°C)
Forecast for your trip dates
Up to 14 days aheadWeather by Season
Spring
Mar–May
Summer
Jun–Aug
Autumn
Sep–Nov
Winter
Dec–Feb
Month-by-Month Weather Table
January
BestFebruary
BestMarch
BestApril
BestMay
June
July
August
September
October
November
December
Best| Month | High | Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition | View Details |
|---|---|---|---|---|---|---|---|---|---|
| January (best) | 28°C | 24°C | 11d (40mm) | 10.3h | 79% Humid | 6.6 High | | Excellent | View Details → |
| February (best) | 28°C | 23°C | 11d (48mm) | 10.6h | 78% Humid | 7.5 Very High | | Excellent | View Details → |
| March (best) | 28°C | 23°C | 11d (35mm) | 11h | 77% Humid | 8.7 Very High | | Excellent | View Details → |
| April (best) | 29°C | 24°C | 13d (81mm) | 11.4h | 78% Muggy | 9.2 Very High | | Excellent | View Details → |
| May | 30°C | 25°C | 12d (79mm) | 11.5h | 79% Muggy | 9.4 Very High | | Good | View Details → |
| June | 31°C | 26°C | 12d (58mm) | 12h | 78% Muggy | 9.5 Very High | | Good | View Details → |
| July | 31°C | 26°C | 15d (67mm) | 11.7h | 80% Very Muggy | 9.3 Very High | | Wet | View Details → |
| August | 31°C | 27°C | 16d (88mm) | 11.1h | 80% Very Muggy | 9.1 Very High | | Wet | View Details → |
| September | 31°C | 27°C | 22d (145mm) | 10.6h | 82% Very Muggy | 8.5 Very High | | Wet | View Details → |
| October | 31°C | 26°C | 20d (131mm) | 9.9h | 82% Very Muggy | 7.4 Very High | | Wet | View Details → |
| November | 29°C | 25°C | 17d (94mm) | 9.7h | 82% Very Muggy | 6.5 High | | Wet | View Details → |
| December (best) | 28°C | 24°C | 11d (42mm) | 10.1h | 80% Very Humid | 6.4 High | | 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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Frequently Asked Questions
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More San Juan Guides
Best Time to Visit
Coming soon
Things to Do
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Where to Stay
Best neighborhoods and hotel recommendations
Cost & Budget
Daily costs, money-saving tips, and budget breakdown
Itineraries
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Overview
Complete travel guide for San Juan: top things to do, itineraries, and typical costs.