Maui (Kahului) in September
In September, Maui (Kahului) averages 27°C (80°F) during the day and 20°C (68°F) at night, with frequent rain — about 23 days of the month see precipitation (73 mm total).
Off-peakConditions are warm and beach-friendly. Expect daily rain or showers, often in heavy bursts.
It's peak hurricane season in Maui (Kahului) during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Maui (Kahului)
September is one of the warmest months in Maui (Kahului) (3rd of 12) and moderately rainy compared to the rest of the year (7th of 12). Daytime temperature runs 2°C above the annual average (24°C). September runs roughly the same as August (27°C) and cools 1°C in October (26°C).
September sunrise & sunset in Maui (Kahului)
Times shown for Maui (Kahului) local time (Pacific/Honolulu), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Maui (Kahului) — September
Golden-hour and blue-hour windows for the 15th of September, in Maui (Kahului)'s local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Maui (Kahului) in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Off-peak) and Maui (Kahului)'s popularity.
Crowds & pricing — September in Maui (Kahului)
This is off-peak for Maui (Kahului) — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.
Why this tier: peak hazard season (2 active)
Sun & mosquito risk — September in Maui (Kahului)
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Maui (Kahului) — September
Across the year Maui (Kahului)'s sea swings from 24.7°C (February) to 27.3°C (September) — September sits at 27.3°C.
Maui (Kahului) in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 23°C / 73°F | 17°C / 62°F | 84 mm | 19 | — |
| February | 22°C / 72°F | 16°C / 62°F | 170 mm | 23 | — |
| March | 23°C / 73°F | 17°C / 62°F | 111 mm | 25 | — |
| April | 23°C / 73°F | 17°C / 63°F | 152 mm | 25 | — |
| May | 24°C / 75°F | 18°C / 65°F | 88 mm | 25 | — |
| June | 25°C / 78°F | 19°C / 66°F | 50 mm | 22 | — |
| July | 27°C / 80°F | 20°C / 68°F | 59 mm | 22 | — |
| August | 27°C / 80°F | 20°C / 69°F | 108 mm | 23 | — |
| September | 27°C / 80°F | 20°C / 68°F | 73 mm | 23 | — |
| October | 26°C / 78°F | 20°C / 67°F | 115 mm | 25 | — |
| November | 24°C / 75°F | 19°C / 65°F | 97 mm | 23 | — |
| December | 23°C / 73°F | 17°C / 63°F | 135 mm | 22 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Maui (Kahului) in September →
Frequently asked questions
How hot is Maui (Kahului) in September?
In September, Maui (Kahului) averages a high of 27°C (80°F) and a low of 20°C (68°F) — generally warm.
Does it rain a lot in Maui (Kahului) in September?
September is quite rainy in Maui (Kahului), with about 23 rainy days on average.
Is September a good time to visit Maui (Kahului)?
September is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Maui (Kahului) in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Maui (Kahului) for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.