Weather in Kauai in May
Kauai, United States averages a high of 25.7°C (78.3°F) and low of 21.3°C (70.3°F) in May, with 16 rain days and 12.5 hours of daily sunshine. Travel score: 74.3/100 (Good). The best time to visit Kauai is January.
High
26°C78°F
Low
21°C70°F
🌧️
16
rain days
☀️
12.5
hrs/day sunshine
💧
78%
humidity
74— Good
May in Kauai is warm and rainy — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Kauai?
How much does it rain in Kauai in May?
Kauai receives an average of 74.9mm of rainfall across 16 rainy days in May. The annual total is 874.8mm.
What should I pack for Kauai in May?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 26°C
🧥
Waterproof jacket
Frequent rain expected (16 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
13 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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Data based on 1994–2024 averages · Last updated: 2024-12-31