Castlebar weather live forecast

Today's maximum temperature in Castlebar is expected to be 16°C. Select a day from the live weather forecast for Castlebar, Ireland for more weather parameters.

Thursday
10th Sep
16

13

1

2
Friday
11th Sep
17

11

5

2
Saturday
12th Sep
18

14

2

1
Sunday
13th Sep
18

13

1

3
Monday
14th Sep
18

14

1

3

5-day weather forecast updated at 04:03 on Thursday 10th September 2026 GMT

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

Castlebar weather forecast by day

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

Castlebar weather for Thursday 10th September 2026

Expect mostly cloudy with light rain in Castlebar, Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 65% chance of some rain and a moderate breeze of 26 kph from the west.

16
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
65
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
26
kph wind from W

Castlebar weather for Friday 11th September 2026

Expect mostly cloudy with light rain in Castlebar, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 23 kph from the west.

17
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
2
UV index (Low)
54
% chance of some rain
<2
mm of rainfall expected
17
°C wind chill
23
kph wind from W

Castlebar weather for Saturday 12th September 2026

Expect mostly cloudy with rain in Castlebar, Ireland with a maximum temperature of 18°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 60% chance of some rain and a moderate breeze of 24 kph from the south-west.

18
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
1
UV index (Low)
60
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

Castlebar weather for Sunday 13th September 2026

Expect mostly cloudy with light rain in Castlebar, Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a gentle breeze of 15 kph from the south.

18
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
12
% chance of some rain
<2
mm of rainfall expected
18
°C wind chill
15
kph wind from S

Castlebar weather for Monday 14th September 2026

Expect mostly cloudy with light rain in Castlebar, Ireland 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 73% chance of some rain and a moderate breeze of 22 kph from the south-west.