Alnwick weather in September 2025

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

  • 16°C maximum daytime temperature in September in Alnwick16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 15 days with some rainfall in September in Alnwick15
    15 days with some rainfall
  • 9°C minimum night-time temperature in September in Alnwick9
    9°C min night temperature
  • 13 hours of daylight per day in September in Alnwick13
    13 hours of daylight per day
  • No heat & humidity in September in Alnwick0
    No heat & humidity
  • 62 mm monthly rainfall in September in Alnwick62
    62 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Alnwick3
    3 (Moderate) UV index

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The September weather guide for England (Alnwick) 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 Alnwick in September?

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

How sunny is it in Alnwick in September?

There are normally 4 hours of bright sunshine each day in Alnwick in September - that's 31% of daylight hours.

Does it rain in Alnwick in September?

There are usually 15 days with some rain in Alnwick in September and the average monthly rainfall is 62mm.

Alnwick September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:13 19:00
Monday, 15th September 2025 05:39 18:24
Tuesday, 30th September 2025 06:08 17:45

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