When to go · September
Hawaii in September
Excellent time to go
Best value shoulder month
Daytime high
31°C
88°F
Overnight low
23°C
73°F
Rainfall
20 mm
dry
Crowd levels
medium
manageable
Prices
medium
shoulder
What to expect in Hawaii in September
September brings hot weather to Hawaii, with daytime highs around 31°C (88°F) and overnight lows near 23°C (73°F). Skies are typically practically rain-free, with about 20 mm of rainfall on average. Best value shoulder month.
Crowds are manageable in September — busy in popular areas but not overwhelming. Prices sit in the shoulder-season range — not the cheapest, but well off peak. Peak season runs December–March, June–August, for context.
What’s happening in September
- 🎉Aloha Festivals · SepStatewide celebration of Hawaiian culture with parades and music.
Plan your trip
Live fares for Hawaii in September
Compare flights across 100+ booking sites. Hotels via Expedia.
Hawaii in other months
Where else is good to go in September
Japan in September
27°C high · medium crowds · good
Bali in September
30°C high · medium crowds · great
Italy in September
27°C high · medium crowds · great
France in September
22°C high · medium crowds · great
Spain in September
28°C high · medium crowds · great
Portugal in September
27°C high · medium crowds · great
Greece in September
29°C high · medium crowds · great
Turkey in September
27°C high · medium crowds · great