Wellington weather in September 2025

Expect 13°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Wellington in September. Check more long-term weather averages for Wellington in September before you book your next holiday to New Zealand in 2025/2026.

  • 13°C maximum daytime temperature in September in Wellington13
    13°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in September in Wellington15
    15 days with some rainfall
  • 7°C minimum night-time temperature in September in Wellington7
    7°C min night temperature
  • 12 hours of daylight per day in September in Wellington12
    12 hours of daylight per day
  • No heat & humidity in September in Wellington0
    No heat & humidity
  • 104 mm monthly rainfall in September in Wellington104
    104 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Wellington4
    4 (Moderate) UV index
  • 12°C sea temperature in September in Wellington12
    12°C sea temperature

More about Wellington

Wellington by month

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

Recommended for New Zealand

Travelbag: Latest holiday sale offers worldwide

  • Explore latest sale offers on holidays in 2025/2026
  • Filter deals by continent, star rating & holiday type
  • Including Dubai, Caribbean, North America, Asia & Pacific
Go to Travelbag deal >>

View all Travelbag offers

TravelbagHoliday deal finder

The September weather guide for New Zealand (Wellington) 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 Wellington in September?

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

How sunny is it in Wellington in September?

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

How warm is the sea around Wellington in September?

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

Does it rain in Wellington in September?

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

Wellington September sunrise & sunset times

Browse the sunrise and sunset times for Wellington in September 2025. Select a month to view Wellington sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:46 17:56
Monday, 15th September 2025 06:23 18:10
Tuesday, 30th September 2025 05:57 18:26

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^