Merseyside weather in September 2025

Q: How warm is it in Merseyside in September?

Daytime temperatures usually reach 17°C in Liverpool, Merseyside in September, falling to 10°C at night.

Q: How sunny is it in Merseyside in September?

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

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

The average sea temperature around Liverpool, Merseyside in September is 16°C.

Q: Does it rain in Merseyside in September?

There are usually 15 days with some rain in Liverpool, Merseyside in September and the average monthly rainfall is 72mm.

Expect daytime maximum temperatures of 17°C in Merseyside in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 72 mm of rainfall in the month.

17
17°C max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
10
10°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
72
72 mm of monthly rainfall
4
4 (Moderate) UV index
16
16°C sea temperature

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The September weather guide for Merseyside (Liverpool) 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.

Top Merseyside destinations

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

How warm is it in Merseyside in September?

Daytime temperatures usually reach 17°C in Liverpool, Merseyside in September, falling to 10°C at night.

How sunny is it in Merseyside in September?

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

How warm is the sea around Merseyside in September?

The average sea temperature around Liverpool, Merseyside in September is 16°C.

Does it rain in Merseyside in September?

There are usually 15 days with some rain in Liverpool, Merseyside in September and the average monthly rainfall is 72mm.

Merseyside September sunrise & sunset times

Browse the sunrise and sunset times for Merseyside in September 2025. Select a month to view Merseyside sunrise and sunset times for the next 12 months. The Merseyside sunrise and sunset times shown below are for Liverpool.

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