June · United States
Best time to visit Kauai in June Weather, crowds & prices
Weather in Kauai in June
Average temperature 25°C, 13 mm of rain, about 30 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
June score
9.8/10
Ranked #1 of 12 months
- Avg temp
- 25°C
- Rainfall
- 13 mm
- Humidity
- 77%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
June in Kauai scores 9.8/10 for beach and coastal travel - the single best month of the year. Expect around 25°C, 13 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Kauai's Na Pali coast, Waimea canyon and rainforest waterfalls make it Hawaii's greenest island.
June in Kauai — the year's strongest window
June averages 25°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 13 mm for the month, with about 30 days with 6+ hours of sunshine and 13.3 hours of daylight to work with.
On our climate-comfort scale this is the top-ranked month of the year for Kauai at 9.8/10 — the reference point every other month on this page is measured against.
Pack light clothing, swimwear and real sun protection.
Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Kauai in June?
- In June, Kauai averages 25°C, 13 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.8/10.
- Is June a good time to visit Kauai?
- June earns a 9.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kauai in June?
- Expect about 13 mm of rain in June. Average humidity is 77% and there are about 30 days with 6+ hours of sunshine.
Curated in Kauai
Tickets & experiences
Things to do in Kauai
Kauai, United States. Live activities and tours from GetYourGuide, matched to this destination.