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 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Merseyside in September. Check more long-term weather averages for Merseyside in September before you book your next holiday to Merseyside in 2025/2026.

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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