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
31st May
16

11

3

5
Monday
1st Jun
17

12

1

2
Tuesday
2nd Jun
15

10

2

4
Wednesday
3rd Jun
15

10

3

3
Thursday
4th Jun
13

8

3

4

5-day weather forecast updated at 04:03 on Sunday 31st May 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 31st May 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 16°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a moderate breeze of 22 kph from the west.

16
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
5
UV index (Moderate)
15
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
22
kph wind from W

Letterkenny weather for Monday 1st June 2026

Expect cloudy with some rain in Letterkenny, Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 15 kph from the south.

17
°C maximum temperature
12
°C minimum temperature
cloudy with some rain
1
hour of sunshine
2
UV index (Low)
79
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
15
kph wind from S

Letterkenny weather for Tuesday 2nd June 2026

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 23 kph from the west.

15
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
53
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
23
kph wind from W

Letterkenny weather for Wednesday 3rd June 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 25 kph from the south-west.

15
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
3
UV index (Moderate)
98
% chance of some rain
<10
mm of rainfall expected
15
°C wind chill
25
kph wind from SW

Letterkenny weather for Thursday 4th June 2026

Expect mostly cloudy with rain in Letterkenny, Ireland with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 25 kph from the west.