Achill Island weather live forecast

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

Thursday
17th Sep
12

10

5

3
Friday
18th Sep
15

11

1

2
Saturday
19th Sep
14

12

4

3
Sunday
20th Sep
15

11

0

2
Monday
21st Sep
16

12

0

3

5-day weather forecast updated at 04:03 on Wednesday 16th September 2026 GMT

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

Achill Island weather forecast by day

Below are the detailed weather forecasts for Achill Island for the next 5 days.

Achill Island weather for Thursday 17th September 2026

Expect sunshine and showers in Achill Island, Ireland with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a strong breeze of 40 kph from the west.

12
°C maximum temperature
10
°C minimum temperature
sunshine and showers
5
hours of sunshine
3
UV index (Moderate)
53
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
40
kph wind from W

Achill Island weather for Friday 18th September 2026

Expect mostly cloudy with rain in Achill Island, Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 88% chance of some rain and a fresh breeze of 38 kph from the south-west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
2
UV index (Low)
88
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
38
kph wind from SW

Achill Island weather for Saturday 19th September 2026

Expect broken clouds in Achill Island, Ireland with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 35 kph from the west.

14
°C maximum temperature
12
°C minimum temperature
broken clouds
4
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
35
kph wind from W

Achill Island weather for Sunday 20th September 2026

Expect mostly cloudy with light rain in Achill Island, Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a moderate breeze of 26 kph from the south-west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
39
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
26
kph wind from SW

Achill Island weather for Monday 21st September 2026

Expect mostly cloudy with light rain in Achill Island, Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a fresh breeze of 36 kph from the south-west.