Which is the hottest month in Swansea?

The hottest time of year in Swansea is normally July. Expect maximum daytime temperatures to reach 20°C.

Which month has the most rain in Swansea?

In terms of rainfall, December is usually the wettest month in Swansea with 140mm on average. There are normally 20 days in December with some rain.

When is it sunniest in Swansea?

The sunniest time of year in Swansea is normally May with bright sunshine on average for 41% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Swansea?

The sea is usually at its warmest in Swansea in August when the water temperature reaches 18°C.

Best time to visit Swansea

Q: When is the best time to visit Swansea?

The best time to visit Swansea is July and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Swansea by month

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

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When is the best time to visit Swansea?

The best time to visit Swansea is July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0.5
Mar
1.5
Apr
1.5
May
2.5
Jun
3
Jul
3
Aug
1
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

7
Jan
7
Feb
9
Mar
12
Apr
15
May
18
Jun
20
Jul
20
Aug
17
Sep
14
Oct
11
Nov
8
Dec

Hours of Sunshine (daily)

2
Jan
3
Feb
4
Mar
6
Apr
7
May
7
Jun
6
Jul
6
Aug
5
Sep
3
Oct
2
Nov
2
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Wales (Swansea) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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