Chatham Island weather in September 2026

Expect daytime maximum temperatures of 11°C in Chatham Island, New Zealand in September based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 72 mm of rainfall in the month.

  • 11°C maximum daytime temperature in September in Chatham Island11
    11°C max day temperature
  • 4 hours of sunshine per day
  • 3 days with some rainfall in September in Chatham Island3
    3 days with some rainfall
  • 6°C minimum night-time temperature in September in Chatham Island6
    6°C min night temperature
  • 12 hours of daylight per day in September in Chatham Island12
    12 hours of daylight per day
  • No heat & humidity in September in Chatham Island0
    No heat & humidity
  • 72 mm monthly rainfall in September in Chatham Island72
    72 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Chatham Island3
    3 (Moderate) UV index
  • 11°C sea temperature in September in Chatham Island11
    11°C sea temperature

More about Chatham Island

Chatham Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for New Zealand

Hawaiian Airlines: Flash sale on one way flights

  • Book cheap one way flights with Hawaiian Airlines
  • Discover San Francisco, Honolulu, Ontario & beyond
  • Choose date & time of travel, type of seat & more
Go to Hawaiian Airlines deal >>

The September weather guide for New Zealand (Chatham Island) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

How warm is it in Chatham Island in September?

Daytime temperatures usually reach 13°C in Chatham Island in September, falling to 7°C at night.

How sunny is it in Chatham Island in September?

There are normally 5 hours of bright sunshine each day in Chatham Island in September - that's 42% of daylight hours.

How warm is the sea around Chatham Island in September?

The average sea temperature around Chatham Island in September is 12°C.

Does it rain in Chatham Island in September?

There are usually 15 days with some rain in Chatham Island in September and the average monthly rainfall is 104mm.

Chatham Island September sunrise & sunset times

Browse the sunrise and sunset times for Chatham Island in September 2026. Select a month to view Chatham Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 07:00 18:04
Tuesday, 15th September 2026 06:34 18:20
Wednesday, 30th September 2026 06:07 18:37

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^