Newcastle weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Newcastle in September. Check more long-term weather averages for Newcastle in September before you book your next holiday to England in 2025/2026.

  • 16°C maximum daytime temperature in September in Newcastle16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in September in Newcastle14
    14 days with some rainfall
  • 9°C minimum night-time temperature in September in Newcastle9
    9°C min night temperature
  • 13 hours of daylight per day in September in Newcastle13
    13 hours of daylight per day
  • No heat & humidity in September in Newcastle0
    No heat & humidity
  • 55 mm monthly rainfall in September in Newcastle55
    55 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Newcastle3
    3 (Moderate) UV index
  • 13°C sea temperature in September in Newcastle13
    13°C sea temperature

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The September weather guide for England (Newcastle) 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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More about England

How warm is it in Newcastle in September?

Daytime temperatures usually reach 16°C in Newcastle in September, falling to 9°C at night.

How sunny is it in Newcastle in September?

There are normally 4 hours of bright sunshine each day in Newcastle in September - that's 32% of daylight hours.

How warm is the sea around Newcastle in September?

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

Does it rain in Newcastle in September?

There are usually 14 days with some rain in Newcastle in September and the average monthly rainfall is 55mm.

Newcastle September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:13 18:58
Monday, 15th September 2025 05:39 18:23
Tuesday, 30th September 2025 06:07 17:44

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