Weather: San Juan — May
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
👍 Climate Overview
May is a good time to visit San Juan. Hot conditions with temperatures reaching 30°C—stay hydrated and seek shade. Rain is common, so pack an umbrella. Being off-peak, you'll find better deals and fewer crowds. Sea temperature of 28°C is perfect for swimming.
Based on weather comfort, crowds, prices, and activity options
30°C
25°C
12days
13h
Feels like 35°C / 29°C — humidity makes it feel warmer
79mm
11.5h/day
79%
Muggy9.4
Very High18 km/h (gusts 35)
28°C 🏊 Comfortable
Is May a good time to visit San Juan?
Conditions are pleasant for sightseeing, though you might encounter occasional showers.
Now
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Air Quality
Travel Context
- CrowdsModerate
- Travel Costs Shoulder Rates
Daylight
05:52
18:51
Visiting San Juan in May: Pros & Cons
Pros
- Abundant sunshine for beach and outdoor fun
- Fewer crowds and better hotel deals
- Warm sea perfect for swimming and snorkeling
Cons
- Very high UV — sunscreen and shade essential
Things to Do in May
Events & Festivals
Recommended for This Weather
San Juan Weather by Month
| Month | Avg High | Avg Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition |
|---|---|---|---|---|---|---|---|---|
| Jan | 28°C | 24°C | 11d (40mm) | 10.3h | 79% Humid | 6.6 High | | Excellent |
| Feb | 28°C | 23°C | 11d (48mm) | 10.6h | 78% Humid | 7.5 Very High | | Excellent |
| Mar | 28°C | 23°C | 11d (35mm) | 11h | 77% Humid | 8.7 Very High | | Excellent |
| Apr | 29°C | 24°C | 13d (81mm) | 11.4h | 78% Muggy | 9.2 Very High | | Excellent |
| May Current | 30°C | 25°C | 12d (79mm) | 11.5h | 79% Muggy | 9.4 Very High | | Good |
| Jun | 31°C | 26°C | 12d (58mm) | 12h | 78% Muggy | 9.5 Very High | | Good |
| Jul | 31°C | 26°C | 15d (67mm) | 11.7h | 80% Very Muggy | 9.3 Very High | | Wet |
| Aug | 31°C | 27°C | 16d (88mm) | 11.1h | 80% Very Muggy | 9.1 Very High | | Wet |
| Sep | 31°C | 27°C | 22d (145mm) | 10.6h | 82% Very Muggy | 8.5 Very High | | Wet |
| Oct | 31°C | 26°C | 20d (131mm) | 9.9h | 82% Very Muggy | 7.4 Very High | | Wet |
| Nov | 29°C | 25°C | 17d (94mm) | 9.7h | 82% Very Muggy | 6.5 High | | Wet |
| Dec | 28°C | 24°C | 11d (42mm) | 10.1h | 80% Very Humid | 6.4 High | | Excellent |
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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What to Pack for May
Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.
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Frequently Asked Questions
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More San Juan Guides
Best Time to Visit
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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.