Weather in San Juan in May
San Juan, Peru averages a high of 28.7°C (83.7°F) and low of 23°C (73.4°F) in May, with 26 rain days and 8.4 hours of daily sunshine. Travel score: 63.7/100 (Good). The best time to visit San Juan is August.
High
29°C84°F
Low
23°C73°F
🌧️
26
rain days
☀️
8.4
hrs/day sunshine
💧
90%
humidity
64— Good
May in San Juan is hot and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in San Juan?
How much does it rain in San Juan in May?
San Juan receives an average of 270.3mm of rainfall across 26 rainy days in May. The annual total is 2646.7mm.
What should I pack for San Juan in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 29°C
🧥
Waterproof jacket
Frequent rain expected (26 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Peru 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