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 63°F 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.

63
63°F max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
50
50°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
4
4 (Moderate) UV index
61
61°F 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) | Imperial (°F)

More about the UK

How warm is it in Merseyside in September?

Daytime temperatures usually reach 63°F in Liverpool, Merseyside in September, falling to 50°F 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 61°F.

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 2.8 inches.

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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