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Kauai
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Best time to visit Kauai
Data source：Meteostat
Last updated：2025-09
Weather in Kauai throughout the year
- Spring (March-May): Average 72–75°F, mild and comfortable climate, moderate rainfall, with more rain in April. Common activities: Hiking, whale watching (seasonal), exploring waterfalls. Suggested clothing: Light long-sleeved clothing, light jacket, comfortable walking shoes.
- Summer (June-August): Average 77–80°F, hot and humid climate, low rainfall. Common activities: Swimming, surfing, sunbathing, snorkeling, diving. Suggested clothing: Light and breathable clothing, swimwear, hat, sunscreen.
- Autumn (September-November): Average 78–76°F, mild and comfortable climate, moderate rainfall, with more rain in October. Common activities: Hiking, sightseeing, exploring beaches. Suggested clothing: Comfortable long or short-sleeved clothing, light jacket.
- Winter (December-February): Average 73–74°F, mild climate, moderate rainfall. Common activities: Whale watching (seasonal), hiking, exploring waterfalls. Suggested clothing: Light long-sleeved clothing, light jacket, comfortable walking shoes.
Weather in Kauai
Annual average temperature: approx. 76.5°F / Annual rainfall: approx. 830 mm / Summer humidity: 70%–80% / Rainiest month: April
Kauai weather by month
Month
Temperature (°F)
Rainfall (mm)
January
73°F
119
February
73.4°F
85.3
March
72.9°F
87
April
74.5°F
165.3
May
75.7°F
85.7
June
77.2°F
19.7
July
80.2°F
24.7
August
80.4°F
31.7
September
79.9°F
18.7
October
78.4°F
36.7
November
76.6°F
70.7
December
74.7°F
85.7
7-day weather forecast for Kauai
11/8
Sunday
Patchy rain nearby
78.8°F/67.9°F
11/9
Monday
Patchy rain nearby
79.3°F/66.5°F
11/10
Tuesday
Patchy rain nearby
79.1°F/66.1°F
11/11
Wednesday
Patchy rain nearby
77.3°F/66°F
11/12
Thursday
Patchy rain nearby
74.9°F/68.5°F
11/13
Friday
Patchy rain nearby
75.4°F/70.7°F
11/14
Saturday
Patchy rain nearby
75.6°F/70.9°F
