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Kauai
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Kauai Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Kauai year round climate
- Spring (March-May): Average 22.7–24.3°C, 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 25.1–26.9°C, 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 25.8–24.8°C, 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 22.8–23.7°C, mild climate, moderate rainfall. Common activities: Whale watching (seasonal), hiking, exploring waterfalls. Suggested clothing: Light long-sleeved clothing, light jacket, comfortable walking shoes.
Kauai climatological average
Annual average temperature: approx. 24.7°C / Annual rainfall: approx. 830 mm / Summer humidity: 70%–80% / Rainiest month: April
Kauai monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
22.8°C
119
February
23°C
85.3
March
22.7°C
87
April
23.6°C
165.3
May
24.3°C
85.7
June
25.1°C
19.7
July
26.8°C
24.7
August
26.9°C
31.7
September
26.6°C
18.7
October
25.8°C
36.7
November
24.8°C
70.7
December
23.7°C
85.7
Kauai weather for the next seven days
12/17
Wednesday
Moderate rain
24.7°C/20.5°C
12/18
Thursday
Moderate rain
24.2°C/20.1°C
12/19
Friday
Patchy rain nearby
24.7°C/20.1°C
12/20
Saturday
Patchy rain nearby
25.2°C/20.7°C
12/21
Sunday
Patchy rain nearby
24.2°C/20.8°C
12/22
Monday
Patchy rain nearby
23.2°C/22°C
12/23
Tuesday
Patchy rain nearby
22.9°C/21.4°C
