Letterkenny weather live forecast

Tomorrow's maximum temperature in Letterkenny is expected to be 20°C.

Wednesday
9th Jul

20

14

3
Thursday
10th Jul

23

14

8
Friday
11th Jul

25

14

8
Saturday
12th Jul

27

15

12
Sunday
13th Jul

30

16

16

5-day weather forecast updated at 04:03 on Wednesday 9th July 2025 GMT

More about Letterkenny

Letterkenny by month

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

Recommended for Ireland

Aer Lingus: Top deals on flights to Ireland & beyond

Sale

Save on flights to Ireland, USA, Canada & Barbados
Book top flight deals online with Aer Lingus
Fly to Dublin, Belfast, New York, Orlando, LA & more

Go to Aer Lingus deal >>

View all Aer Lingus offers

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 Wednesday 9th July 2025

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 20°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected and a moderate breeze of 20 kph from the west.

20
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
<2
mm of rainfall expected
0
no heat & humidity
20
kph wind from W

Letterkenny weather for Thursday 10th July 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

23
°C maximum temperature
14
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
23
°C wind chill
18
kph wind from SW

Letterkenny weather for Friday 11th July 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 25°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.

25
°C maximum temperature
14
°C minimum temperature
broken clouds
8
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
25
°C wind chill
22
kph wind from S

Letterkenny weather for Saturday 12th July 2025

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

27
°C maximum temperature
15
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
20
kph wind from S

Letterkenny weather for Sunday 13th July 2025

Expect clear skies in Letterkenny, Ireland with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-east.

30
°C maximum temperature
16
°C minimum temperature
clear skies
16
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from SE

Spabreaks.com: Last minute spa breaks & spa days

Sale

Save on spa breaks & spa days with last minute deals
Explore exclusive spa deals & offers ending soon
Book spas in London, Manchester, Cardiff & more

Go to Spabreaks.com deal >>

View all Spabreaks.com offers

Metric (°C / mm) | Imperial (°F / inches)

More about Ireland

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Ireland - quick facts
Flight time^✝	1 to 1.5 hours
Time difference	UK +0 hours
Language(s)	English
Currency	Euro
Electricity	G plug (230V)
Driving side	Left
Why visit?	Culture Nature
Tourist info	Tourism Ireland