Swansea weather live forecast

Today's maximum temperature in Swansea is expected to be 12°C. Select a day from the live weather forecast for Swansea, Wales, UK for more weather parameters.

Monday
18th May
12

8

0

3
Tuesday
19th May
14

11

2

4
Wednesday
20th May
14

12

3

2
Thursday
21st May
18

11

4

6
Friday
22nd May
21

12

7

6

5-day weather forecast updated at 04:01 on Monday 18th May 2026 GMT

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The 5-day weather forecast for Wales (Swansea) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Swansea weather forecast by day

Below are the detailed weather forecasts for Swansea for the next 5 days.

Swansea weather for Monday 18th May 2026

Expect cloudy with some rain in Swansea, Wales with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 18 kph from the south-west.

12
°C maximum temperature
8
°C minimum temperature
cloudy with some rain
0
hours of sunshine
3
UV index (Moderate)
88
% chance of some rain
<20
mm of rainfall expected
12
°C wind chill
18
kph wind from SW

Swansea weather for Tuesday 19th May 2026

Expect cloudy with some rain in Swansea, Wales with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 24 kph from the south-west.

14
°C maximum temperature
11
°C minimum temperature
cloudy with some rain
2
hours of sunshine
4
UV index (Moderate)
92
% chance of some rain
<20
mm of rainfall expected
14
°C wind chill
24
kph wind from SW

Swansea weather for Wednesday 20th May 2026

Expect mostly cloudy with light rain in Swansea, Wales with a maximum temperature of 14°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 27 kph from the south-west.

14
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
41
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
27
kph wind from SW

Swansea weather for Thursday 21st May 2026

Expect mostly cloudy with light rain in Swansea, Wales with a maximum temperature of 18°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 21% chance of some rain and a gentle breeze of 15 kph from the south-west.

18
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
6
UV index (High)
21
% chance of some rain
<5
mm of rainfall expected
18
°C wind chill
15
kph wind from SW

Swansea weather for Friday 22nd May 2026

Expect sunshine and showers in Swansea, Wales with a maximum temperature of 21°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a light breeze of 12 kph from the south.