Letterkenny weather live forecast

Today's maximum temperature in Letterkenny is expected to be 19°C. Select a day from the live weather forecast for Letterkenny, Ireland for more weather parameters.

Friday
10th Jul
19

13

1

3
Saturday
11th Jul
18

12

4

3
Sunday
12th Jul
25

14

10

6
Monday
13th Jul
25

14

16

6
Tuesday
14th Jul
23

13

8

6

5-day weather forecast updated at 04:03 on Friday 10th July 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 10th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 19°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.

19
°C maximum temperature
13
°C minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from N

Letterkenny weather for Saturday 11th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north.

18
°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
21
kph wind from N

Letterkenny weather for Sunday 12th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 25°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the east.

25
°C maximum temperature
14
°C minimum temperature
broken clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
22
kph wind from E

Letterkenny weather for Monday 13th July 2026

Expect clear skies in Letterkenny, Ireland with a maximum temperature of 25°C, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the east.

25
°C maximum temperature
14
°C minimum temperature
clear skies
16
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
25
°C wind chill
24
kph wind from E

Letterkenny weather for Tuesday 14th July 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 23°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.