Nelson weather in September 2026

Expect daytime maximum temperatures of 57°F in Nelson, New Zealand in September based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 57°F maximum daytime temperature in September in Nelson57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in September in Nelson13
    13 days with some rainfall
  • 41°F minimum night-time temperature in September in Nelson41
    41°F min night temperature
  • 12 hours of daylight per day in September in Nelson12
    12 hours of daylight per day
  • No heat & humidity in September in Nelson0
    No heat & humidity
  • 4.3 inches monthly rainfall in September in Nelson4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Nelson4
    4 (Moderate) UV index
  • 54°F sea temperature in September in Nelson54
    54°F sea temperature

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The September weather guide for New Zealand (Nelson) 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)  |  Imperial (°F)

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How warm is it in Nelson in September?

Daytime temperatures usually reach 55°F in Nelson in September, falling to 45°F at night.

How sunny is it in Nelson in September?

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

How warm is the sea around Nelson in September?

The average sea temperature around Nelson in September is 54°F.

Does it rain in Nelson in September?

There are usually 15 days with some rain in Nelson in September and the average monthly rainfall is 4.1 inches.

Nelson September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2026 06:52 18:02
Tuesday, 15th September 2026 06:29 18:16
Wednesday, 30th September 2026 06:03 18:31

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