July · United States
Best time to visit Kauai in July Weather, crowds & prices
Weather in Kauai in July
Average temperature 26°C, 15 mm of rain, about 31 days with 6+ hours of sunshine and 77% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
July score
9.8/10
Ranked #2 of 12 months
- Avg temp
- 26°C
- Rainfall
- 15 mm
- Humidity
- 77%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
July in Kauai scores 9.8/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 26°C, 15 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Kauai's Na Pali coast, Waimea canyon and rainforest waterfalls make it Hawaii's greenest island.
July ranks 2nd of 12 for Kauai — one of the best windows
July averages 26°C (78°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 15 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 13.2 daylight hours.
A 9.8/10 puts this among the year's best months in Kauai (2nd of 12); only June scores higher, at 9.8/10.
Pack light clothing, swimwear and real sun protection.
Figure on peak pricing, with this is one of the busiest months here. 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 July?
- In July, Kauai averages 26°C, 15 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.8/10.
- Is July a good time to visit Kauai?
- July 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 July?
- Expect about 15 mm of rain in July. Average humidity is 77% and there are about 31 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.