Weather in Big Island in May
Big Island, United States averages a high of 24.5°C (76.1°F) and low of 20.1°C (68.2°F) in May, with 24 rain days and 12.1 hours of daily sunshine. Travel score: 67/100 (Good). The best time to visit Big Island is February.
High
25°C76°F
Low
20°C68°F
🌧️
24
rain days
☀️
12.1
hrs/day sunshine
💧
85%
humidity
67— Good
May in Big Island is warm and very rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Big Island?
How much does it rain in Big Island in May?
Big Island receives an average of 265.4mm of rainfall across 24 rainy days in May. The annual total is 2648.5mm.
What should I pack for Big Island in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 25°C
🧥
Waterproof jacket
Frequent rain expected (24 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 United States in May?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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What is the weather like in other months in Big Island?
Data based on 1994–2024 averages · Last updated: 2024-12-31