Southwold weather in September 2025

Expect 18°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Southwold in September. Check more long-term weather averages for Southwold in September before you book your next holiday to England in 2025/2026.

18
18°C max day temperature
5
5 hours of sunshine per day
15
15 days with some rainfall
11
11°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
53
53 mm of monthly rainfall
4
4 (Moderate) UV index
17
17°C sea temperature

More about Southwold

Southwold by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for England

Blackpool Tower: Pick 'n' Mix pass on multi-attractions

Sale

Save on multiple attractions in Blackpool with Pick 'n' Mix pass
Build passes around preferred attractions & number of days
Including Circus, Eye, SEA LIFE, Dungeon & Madam Tussauds

Go to Blackpool Tower deal >>

View all Blackpool Tower offers

The September weather guide for England (Southwold) 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)

More about England

How hot is it in Southwold in September?

Daytime temperatures usually reach 18°C in Southwold in September, falling to 11°C at night.

How sunny is it in Southwold in September?

There are normally 5 hours of bright sunshine each day in Southwold in September - that's 39% of daylight hours.

How warm is the sea around Southwold in September?

The average sea temperature around Southwold in September is 17°C.

Does it rain in Southwold in September?

There are usually 15 days with some rain in Southwold in September and the average monthly rainfall is 53mm.

Southwold September sunrise & sunset times

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st September 2025	05:05	18:41
Monday, 15th September 2025	05:28	18:08
Tuesday, 30th September 2025	05:53	17:32

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

England - quick facts
Time difference	UK +0 hours
Language(s)	English
Currency	Pound Sterling
Electricity	G plug (230V)
Driving side	Left
Tourist info	Visit England