Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 9°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
19th Dec
9

6

2

0
Saturday
20th Dec
9

6

2

0
Sunday
21st Dec
7

3

0

0
Monday
22nd Dec
6

2

1

0
Tuesday
23rd Dec
6

3

0

0

5-day weather forecast updated at 04:04 on Friday 19th December 2025 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 19th December 2025

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 22% chance of some rain and a fresh breeze of 36 kph from the south-west.

9
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
22
% chance of some rain
<5
mm of rainfall expected
4
°C wind chill
36
kph wind from SW

Letterkenny weather for Saturday 20th December 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south-east.

9
°C maximum temperature
6
°C minimum temperature
broken clouds
2
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
5
°C wind chill
29
kph wind from SE

Letterkenny weather for Sunday 21st December 2025

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 7°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a gentle breeze of 16 kph from the east.

7
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
50
% chance of some rain
<2
mm of rainfall expected
4
°C wind chill
16
kph wind from E

Letterkenny weather for Monday 22nd December 2025

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 6°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a gentle breeze of 13 kph from the south.

6
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
59
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
13
kph wind from S

Letterkenny weather for Tuesday 23rd December 2025

Expect fog in low lying areas in Letterkenny, Ireland with a maximum temperature of 6°C and no hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south.