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Photo: Lough Allen Spencer Harbour 2003 09 11.jpg via Wikidata Q1366974 License
Lough Allen
Lake
Cool today
Lough Allen (Irish: Loch Aillionn) is a lake on the River Shannon in northeastern Connacht, Ireland. Most of the lake is in County Leitrim, with a smaller part in County Roscommon. The lake lies to the south of the River Shannon's source, near the Iron Mountains, and is the uppermost of the three main lakes on the river.
Interactive map not available
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Weather at Lough Allen
44°F, Mist · H 54° / L 42° · 85% chance of rain3-day forecast
H: 54° L: 42°
Mist
44°
|
Feels like 41°
Precipitation
85%
Humidity
96%
Wind
6 mph
UV Index
0
12 AM
42°
3 AM
42°
6 AM
45°
9 AM
45°
12 PM
51°
3 PM
53°
6 PM
50°
9 PM
48°
Frequently asked questions
- Where is Lough Allen?
- Lough Allen is a lake in Northern Ireland.
- Can you swim at Lough Allen?
- There is no fixed answer for Lough Allen: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Lough Allen in Northern Ireland. Check current water conditions before you go, and follow posted signs and local guidance.
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Location & Contact
Northern Ireland
🏞️ Best times & visiting tips
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
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