Northumberland weather in September 2026

Q: How warm is it in Northumberland in September?

Daytime temperatures usually reach 16°C in Berwick-on-Tweed, Northumberland in September, falling to 9°C at night.

Q: How sunny is it in Northumberland in September?

There are normally 4 hours of bright sunshine each day in Berwick-on-Tweed, Northumberland in September - that's 32% of daylight hours.

Q: How warm is the sea around Northumberland in September?

The average sea temperature around Berwick-on-Tweed, Northumberland in September is 13°C.

Q: Does it rain in Northumberland in September?

There are usually 16 days with some rain in Berwick-on-Tweed, Northumberland in September and the average monthly rainfall is 56mm.

Expect daytime maximum temperatures of 16°C in Northumberland, UK in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 56 mm of rainfall in the month.

16
16°C max day temperature
4
4 hours of sunshine per day
16
16 days with some rainfall
9
9°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
56
56 mm of monthly rainfall
3
3 (Moderate) UV index
13
13°C sea temperature

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The September weather guide for Northumberland (Berwick-on-Tweed) 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.

Northumberland temperatures in September

Below are average maximum temperatures at popular countries, regions and places in Northumberland in September. Select a holiday destination to see more weather parameters.

More about the UK

How warm is it in Northumberland in September?

Daytime temperatures usually reach 16°C in Berwick-on-Tweed, Northumberland in September, falling to 9°C at night.

How sunny is it in Northumberland in September?

There are normally 4 hours of bright sunshine each day in Berwick-on-Tweed, Northumberland in September - that's 32% of daylight hours.

How warm is the sea around Northumberland in September?

The average sea temperature around Berwick-on-Tweed, Northumberland in September is 13°C.

Does it rain in Northumberland in September?

There are usually 16 days with some rain in Berwick-on-Tweed, Northumberland in September and the average monthly rainfall is 56mm.

Northumberland September sunrise & sunset times

Browse the sunrise and sunset times for Northumberland in September 2026. Select a month to view Northumberland sunrise and sunset times for the next 12 months. The Northumberland sunrise and sunset times shown below are for Berwick-on-Tweed.

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