Kauai weather in June
June in Kauai: warm, a little rain, with clean air — an excellent time to visit.
#5 of 12 months in Kauai · #147 of 604 destinations to visit in June · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Kauai climate normals — June
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 20°C / 68°F | |
| Feels like (high) | 27°C / 81°F | |
| Rainfall | 67 mm / 2.6 in | 🌦 some rain |
| Rainy days | 15 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 17°C / 63°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 13.5 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Kauai?
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Kauai in June — FAQ
- Is June a good time to visit Kauai?
- June in Kauai: warm, a little rain, with clean air — an excellent time to visit. It ranks #5 of 12 months for Kauai on SeasonMap's comfort score (88/100).
- What is the weather like in Kauai in June?
- In June, Kauai averages a daily high of 25°C and a low of 20.1°C, with about 67 mm of rain over roughly 14.6 rainy days.
- What is the air quality in Kauai in June?
- Kauai has a mean US Air Quality Index of about 26 in June.