Letterkenny weather live forecast

Tomorrow's maximum temperature in Letterkenny is expected to be 68°F.

Wednesday
9th Jul

68

57

3
Thursday
10th Jul

73

57

8
Friday
11th Jul

77

57

8
Saturday
12th Jul

81

59

12
Sunday
13th Jul

86

61

16

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

Expect mostly cloudy with light rain in Letterkenny, Ireland with a maximum temperature of 68°F, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected and a moderate breeze of 12 mph from the west.

68
°F maximum temperature
57
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
<2
mm of rainfall expected
0
no heat & humidity
12
mph wind from W

Letterkenny weather for Thursday 10th July 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 73°F, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south-west.

73
°F maximum temperature
57
°F minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
73
°F wind chill
11
mph wind from SW

Letterkenny weather for Friday 11th July 2025

Expect broken clouds in Letterkenny, Ireland with a maximum temperature of 77°F, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the south.

77
°F maximum temperature
57
°F minimum temperature
broken clouds
8
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
77
°F wind chill
14
mph wind from S

Letterkenny weather for Saturday 12th July 2025

Expect scattered clouds in Letterkenny, Ireland with a maximum temperature of 81°F, 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 12 mph from the south.

81
°F maximum temperature
59
°F minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
12
mph wind from S

Letterkenny weather for Sunday 13th July 2025

Expect clear skies in Letterkenny, Ireland with a maximum temperature of 86°F, 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 12 mph from the south-east.

86
°F maximum temperature
61
°F minimum temperature
clear skies
16
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
12
mph wind from SE

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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