County Donegal Weather Forecast
County Donegal weather: 51°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for County Donegal
No snow is in the current forecast window for County Donegal.
0 of the next 16 nights are forecast to reach freezing.
Average monthly lows here stay above freezing all year, so lying snow is rare.
16-day forecast for County Donegal
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Aug 24 | ☁️ Overcast | 69° / 51° | 0% | 7 mph | 4 |
| Tue, Aug 25 | 🌦️ Light drizzle | 67° / 56° | 35% · 0,0 in | 10 mph | 3 |
| Wed, Aug 26 | 🌦️ Drizzle | 65° / 58° | 80% · 0,2 in | 13 mph | 3 |
| Thu, Aug 27 | 🌦️ Drizzle | 68° / 55° | 87% · 0,1 in | 8 mph | 3 |
| Fri, Aug 28 | 🌦️ Drizzle | 63° / 58° | 53% · 0,2 in | 11 mph | 4 |
| Sat, Aug 29 | 🌦️ Light drizzle | 61° / 55° | 55% · 0,0 in | 10 mph | 4 |
| Sun, Aug 30 | 🌦️ Light showers | 60° / 52° | 89% · 0,6 in | 11 mph | 3 |
| Mon, Aug 31 | 🌦️ Drizzle | 62° / 53° | 81% · 0,3 in | 11 mph | 4 |
| Tue, Sep 1 | 🌦️ Light showers | 60° / 53° | 60% · 0,5 in | 18 mph | 3 |
| Wed, Sep 2 | 🌦️ Light showers | 59° / 53° | 77% · 0,3 in | 18 mph | 2 |
| Thu, Sep 3 | 🌦️ Light drizzle | 62° / 52° | 78% · 0,1 in | 9 mph | 3 |
| Fri, Sep 4 | 🌧️ Heavy drizzle | 64° / 58° | 68% · 0,4 in | 14 mph | 4 |
| Sat, Sep 5 | 🌦️ Light showers | 60° / 54° | 77% · 0,5 in | 18 mph | 5 |
| Sun, Sep 6 | 🌦️ Light drizzle | 60° / 51° | 74% · 0,2 in | 15 mph | 3 |
| Mon, Sep 7 | ☀️ Clear sky | -- / -- | — | -- | 1 |
| Tue, Sep 8 | ☀️ Clear sky | -- / -- | — | -- | — |
Climate in County Donegal month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 44° | 36° | 5,4 in | ★★☆☆☆ |
| February | 46° | 39° | 7,0 in | ★★☆☆☆ |
| March | 50° | 39° | 5,3 in | ★★★☆☆ |
| April | 54° | 42° | 5,7 in | ★★★☆☆ |
| May | 60° | 47° | 4,1 in | ★★★★☆ |
| June | 60° | 50° | 7,2 in | ★★★☆☆ |
| July | 64° | 54° | 5,0 in | ★★★★☆ |
| August | 63° | 54° | 6,9 in | ★★★☆☆ |
| September | 60° | 50° | 6,6 in | ★★★☆☆ |
| October | 55° | 48° | 7,1 in | ★★★☆☆ |
| November | 49° | 42° | 6,5 in | ★★☆☆☆ |
| December | 47° | 40° | 8,4 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
What to pack, what to skip
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the County Donegal forecast by time range
County Donegal weather - more answers
Explore County Donegal
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Frequently asked questions
Where is County Donegal?
County Donegal is a county in Ireland. Its coordinates are 54.6538, -8.1096. It lies in Europe.
What is the weather like in County Donegal right now?
It is currently 51°F (11°C) with partly cloudy. Humidity is 88% and wind is 3 mph.
When is the best time to visit County Donegal?
May and July offer the most comfortable conditions in County Donegal, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Donegal in?
County Donegal observes Europe/Dublin (UTC+01:00). The local time is 10:37 AM.
How many people live in County Donegal?
County Donegal has a population of approximately 167.000.
What is the nearest airport to County Donegal?
The closest airports are Dublin Airport (DUB), 113 mi away.
What are the top things to do in County Donegal?
Popular options include Isle of Skye, Lake District National Park, Snowdonia National Park, Edinburgh Castle, Old and New Towns of Edinburgh and Loch Ness.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (ie-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 10:37 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
