Letterkenny weather live forecast

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

Friday
17th Apr
12

8

4

2
Saturday
18th Apr
10

4

7

2
Sunday
19th Apr
12

3

6

2
Monday
20th Apr
13

3

8

3
Tuesday
21st Apr
12

3

5

3

5-day weather forecast updated at 04:13 on Friday 17th April 2026 GMT

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

Letterkenny weather forecast by day

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

Letterkenny weather for Friday 17th April 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 12°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a fresh breeze of 36 kph from the south-west.

12
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
53
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
36
kph wind from SW

Letterkenny weather for Saturday 18th April 2026

Expect sunshine and showers in Letterkenny, Ireland with a maximum temperature of 10°C, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a moderate breeze of 23 kph from the north-west.

10
°C maximum temperature
4
°C minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
36
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
23
kph wind from NW

Letterkenny weather for Sunday 19th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 12°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

12
°C maximum temperature
3
°C minimum temperature
broken clouds
6
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from NE

Letterkenny weather for Monday 20th April 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-east.

13
°C maximum temperature
3
°C minimum temperature
scattered clouds
8
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
13
°C wind chill
5
kph wind from NE

Letterkenny weather for Tuesday 21st April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 12°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.