Letterkenny Weather History Donegal, Ireland

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Sun 07 Sep, 2025 Weather in Letterkenny

Sunrise: 06:49 AM Sunset: 08:08 PM	Moonrise: 08:05 PM Moonset: 06:07 AM	Max: 16.6 °c	Min: 7.1 °c	Avg: 13.9 °c	Precip: 3.30 mm	Max Wind: 31.3 kph

	Sun 07 0:00 am	Sun 07 3:00 am	Sun 07 6:00 am	Sun 07 9:00 am	Sun 07 12:00 pm	Sun 07 3:00 pm	Sun 07 6:00 pm	Sun 07 9:00 pm
Icon
Temp	14.2°c	15.3°c	15.7°c	16.6°c	13.7°c	15.4°c	13.4°c	8.9°c
Wind	26.6 kmph	27.0 kmph	30.6 kmph	27.4 kmph	8.6 kmph	13.3 kmph	14.4 kmph	7.6 kmph
Precip	0.00 mm	0.00 mm	0.10 mm	0.00 mm	0.20 mm	0.20 mm	0.00 mm	0.00 mm
Cloud	54%	65%	100%	100%	89%	70%	48%	37%
Humidity	84%	84%	91%	87%	96%	83%	81%	89%
Pressure	1000 mb	997 mb	996 mb	996 mb	999 mb	1000 mb	1002 mb	1005 mb

Letterkenny Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	7°C / 44°F	2°C / 35°F	4°C / 39°F	60 hours	87.26 mm / 3.44 In	11 days	1010 mb / 30 In
February	8°C / 46°F	2°C / 36°F	5°C / 40°F	55 hours	90.47 mm / 3.56 In	11 days	1010 mb / 30 In
March	9°C / 49°F	2°C / 36°F	6°C / 42°F	64 hours	82.66 mm / 3.25 In	11 days	1012 mb / 30 In
April	12°C / 53°F	4°C / 39°F	8°C / 46°F	82 hours	78.45 mm / 3.09 In	9 days	1015 mb / 30 In
May	14°C / 58°F	6°C / 44°F	10°C / 51°F	79 hours	99.25 mm / 3.91 In	11 days	1015 mb / 30 In
June	17°C / 62°F	9°C / 48°F	13°C / 55°F	62 hours	98.34 mm / 3.87 In	11 days	1015 mb / 30 In
July	18°C / 64°F	11°C / 51°F	14°C / 58°F	49 hours	116.60 mm / 4.59 In	11 days	1013 mb / 30 In
August	17°C / 63°F	10°C / 51°F	14°C / 57°F	45 hours	120.51 mm / 4.74 In	12 days	1012 mb / 30 In
September	16°C / 60°F	9°C / 48°F	12°C / 54°F	63 hours	85.35 mm / 3.36 In	10 days	1014 mb / 30 In
October	13°C / 55°F	7°C / 44°F	10°C / 50°F	53 hours	98.79 mm / 3.89 In	11 days	1010 mb / 30 In
November	9°C / 49°F	4°C / 39°F	7°C / 44°F	57 hours	98.19 mm / 3.87 In	11 days	1008 mb / 30 In
December	7°C / 45°F	3°C / 37°F	5°C / 41°F	66 hours	99.31 mm / 3.91 In	12 days	1008 mb / 30 In

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