Barmouth weather live forecast

Today's maximum temperature in Barmouth is expected to be 14°C. Select a day from the live weather forecast for Barmouth, Wales, UK for more weather parameters.

Wednesday
20th May
14

11

3

UV4
Thursday
21st May
18

11

1

UV3
Friday
22nd May
19

14

3

UV3
Saturday
23rd May
19

12

4

UV3
Sunday
24th May
19

11

12

UV6

5-day weather forecast updated at 04:03 on Wednesday 20th May 2026 GMT

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

Barmouth weather forecast by day

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

Barmouth weather for Wednesday 20th May 2026

Expect mostly cloudy with light rain in Barmouth, Wales with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and a fresh breeze of 36 kph from the south-west.

14
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
UV4
UV index (Moderate)
35
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
36
kph wind from SW

Barmouth weather for Thursday 21st May 2026

Expect mostly cloudy with light rain in Barmouth, Wales with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 21% chance of some rain and a moderate breeze of 23 kph from the south.

18
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
UV3
UV index (Moderate)
21
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
23
kph wind from S

Barmouth weather for Friday 22nd May 2026

Expect broken clouds in Barmouth, Wales with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

19
°C maximum temperature
14
°C minimum temperature
broken clouds
3
hours of sunshine
UV3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from SW

Barmouth weather for Saturday 23rd May 2026

Expect mostly cloudy with light rain in Barmouth, Wales with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a gentle breeze of 13 kph from the south-west.

19
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
UV3
UV index (Moderate)
21
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
13
kph wind from SW

Barmouth weather for Sunday 24th May 2026

Expect scattered clouds in Barmouth, Wales with a maximum temperature of 19°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.