- Browse latest holiday offers & last minute deals
- Book holidays departing soon & school holidays
- Plus find holidays based on preferred budget
Hanalei, Kauai weather in September 2020
- 2929°C max day temperature
- 1515 days with some rainfall
- 2323°C min night temperature
- 1212 hours of daylight per day
- HHigh heat & humidity
- 144144 mm of monthly rainfall
- 1111 (Extreme) UV index
- 2727°C sea temperature
The September weather guide for Hanalei, Kauai, Hawaii shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in Hanalei, Kauai in September?
Daytime temperatures usually reach 29°C in Hanalei, Kauai in September with high heat and humidity, falling to 23°C at night.
How sunny is it in Hanalei, Kauai in September?
There are normally 8 hours of bright sunshine each day in Hanalei, Kauai in September - that's 66% of daylight hours.
How warm is the sea around Hanalei, Kauai in September?
The average sea temperature around Hanalei, Kauai in September is 27°C.
Does it rain in Hanalei, Kauai in September?
There are usually 15 days with some rain in Hanalei, Kauai in September and the average monthly rainfall is 144mm.
Hanalei, Kauai sunrise & sunset times for September 2020
Browse the sunrise & sunset times for Hanalei, Kauai in September 2020. Select a month to view Hanalei, Kauai sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Tuesday, 1st September 2020||06:21||18:54|
|Tuesday, 15th September 2020||06:25||18:40|
|Wednesday, 30th September 2020||06:29||18:26|
- Save up to 60% on hotels with Priceline Express Deals
- Search for cheap hotel deals by city or airport
- Filter deals by star rating, price, amenities & hotel area
Metric (°C / mm) | Imperial (°F / inches)
Discover more about the USA
Where's hot in Hawaii in September?
Below are average maximum temperatures at popular destinations in Hawaii in September. Select a destination to see more weather parameters.
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.