Letterkenny weather live forecast

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

Sunday
26th Apr
16

9

3

2
Monday
27th Apr
14

7

5

2
Tuesday
28th Apr
18

6

9

3
Wednesday
29th Apr
18

8

11

5
Thursday
30th Apr
19

7

10

4

5-day weather forecast updated at 04:03 on Saturday 25th April 2026 GMT

More about Letterkenny

Letterkenny by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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 Sunday 26th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

16
°C maximum temperature
9
°C minimum temperature
broken clouds
3
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
16
°C wind chill
10
kph wind from W

Letterkenny weather for Monday 27th April 2026

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 14°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north.

14
°C maximum temperature
7
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
14
°C wind chill
15
kph wind from N

Letterkenny weather for Tuesday 28th April 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-east.

18
°C maximum temperature
6
°C minimum temperature
scattered clouds
9
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

Letterkenny weather for Wednesday 29th April 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-east.

18
°C maximum temperature
8
°C minimum temperature
scattered clouds
11
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from SE

Letterkenny weather for Thursday 30th April 2026

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.