September · United States
Best time to visit Maui in September Weather, crowds & prices
Weather in Maui in September
Average temperature 25°C, 15 mm of rain, about 30 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.7/10
Ranked #4 of 12 months
- Avg temp
- 25°C
- Rainfall
- 15 mm
- Humidity
- 78%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Maui scores 9.7/10 for beach and coastal travel - an above-average month (#4 of 12). Expect around 25°C, 15 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Maui packs the Road to Hana, Haleakalā's crater and whale-filled channels into one Hawaiian island.
September is one of the strongest months in Maui (4th)
September averages 25°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 30 days with 6+ hours of sunshine and 12.1 daylight hours.
A 9.7/10 puts this among the year's best months in Maui (4th of 12); only June scores higher, at 9.8/10.
Pack light clothing, swimwear and real sun protection.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Maui in September?
- In September, Maui averages 25°C, 15 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.7/10.
- Is September a good time to visit Maui?
- September earns a 9.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Maui in September?
- Expect about 15 mm of rain in September. Average humidity is 78% and there are about 30 days with 6+ hours of sunshine.
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