Weather in Guaynabo in May
Guaynabo, Puerto Rico averages a high of 30.2°C (86.4°F) and low of 22.9°C (73.2°F) in May, with 20 rain days and 11.9 hours of daily sunshine. Travel score: 69.5/100 (Good). The best time to visit Guaynabo is February.
High
30°C86°F
Low
23°C73°F
🌧️
20
rain days
☀️
11.9
hrs/day sunshine
💧
79%
humidity
70— Good
May in Guaynabo is hot and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Guaynabo?
How much does it rain in Guaynabo in May?
Guaynabo receives an average of 126.2mm of rainfall across 20 rainy days in May. The annual total is 1206mm.
What should I pack for Guaynabo in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 30°C
🧢
Sun hat or cap
Protection from intense sun
🧥
Waterproof jacket
Frequent rain expected (20 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Puerto Rico in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31