Napier weather in September 2025

Expect daytime maximum temperatures of 16°C in Napier, New Zealand in September based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 64 mm of rainfall in the month.

  • 16°C maximum daytime temperature in September in Napier16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Napier12
    12 days with some rainfall
  • 6°C minimum night-time temperature in September in Napier6
    6°C min night temperature
  • 12 hours of daylight per day in September in Napier12
    12 hours of daylight per day
  • No heat & humidity in September in Napier0
    No heat & humidity
  • 64 mm monthly rainfall in September in Napier64
    64 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Napier4
    4 (Moderate) UV index
  • 13°C sea temperature in September in Napier13
    13°C sea temperature

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The September weather guide for New Zealand (Napier) 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)

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How warm is it in Napier in September?

Daytime temperatures usually reach 16°C in Napier in September, falling to 6°C at night.

How sunny is it in Napier in September?

There are normally 6 hours of bright sunshine each day in Napier in September - that's 47% of daylight hours.

How warm is the sea around Napier in September?

The average sea temperature around Napier in September is 13°C.

Does it rain in Napier in September?

There are usually 12 days with some rain in Napier in September and the average monthly rainfall is 64mm.

Napier September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:36 17:50
Monday, 15th September 2025 06:14 18:02
Tuesday, 30th September 2025 05:49 18:16

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