March · United States
Best time to visit Kauai in March Weather, crowds & prices
Weather in Kauai in March
Average temperature 24°C, 59 mm of rain, about 27 days with 6+ hours of sunshine and 76% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
March score
9.2/10
Ranked #8 of 12 months
- Avg temp
- 24°C
- Rainfall
- 59 mm
- Humidity
- 76%
- Days with 6h+ sun
- 27
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
March in Kauai scores 9.2/10 for beach and coastal travel - ranked #8 of 12. Expect around 24°C, 59 mm of rain, and roughly 27 days with 6+ hours of sunshine this month.
Kauai's Na Pali coast, Waimea canyon and rainforest waterfalls make it Hawaii's greenest island.
March in Kauai — one of the year's strongest windows (8th)
With 24°C (74°F) on average, March delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
Budget for roughly 59 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 11.8 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Kauai at 9.2/10 (8th of 12), just behind June at 9.8/10.
Pack light clothing, swimwear and real sun protection, a packable rain layer.
Expect mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Kauai in March?
- In March, Kauai averages 24°C, 59 mm of rain, and about 27 days with 6+ hours of sunshine. Its climate-comfort score is 9.2/10.
- Is March a good time to visit Kauai?
- March earns a 9.2/10 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 March?
- Expect about 59 mm of rain in March. Average humidity is 76% and there are about 27 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.