Thorn Lough
Monitored, not designated
Not an EPA-monitored bathing water. This lake comes from OpenStreetMap. There is no water-quality testing, no bathing notices and no facilities information here; the score is weather and daylight only. Check locally for blue-green algae warnings before you swim.
Dip score now
92
Grand · light winds, dry
Wind
9 km/h
Light breeze, W, gusts 23
Daylight
07:36
Sunrise. Sunset 19:03. Air 7°C.
Best dip each day
Daylight hours, preferring high tideToday
18:00
Grand 100/100
light winds, dry · 10 km/h
☀ 07:36–19:03
Sun, 4 Oct
10:00
Grand 100/100
light winds, dry · 12 km/h
☀ 07:38–19:00
Mon, 5 Oct
08:00
Grand 94/100
gentle breeze, dry · 19 km/h
☀ 07:40–18:58
Tue, 6 Oct
19:00
Grand 92/100
light winds, dry · 10 km/h
☀ 07:41–18:55
Wed, 7 Oct
13:00
Decent 78/100
gentle breeze, rain · 19 km/h
☀ 07:43–18:53
Thu, 8 Oct
10:00
Grand 92/100
light winds, dry · 8 km/h
☀ 07:45–18:50
Fri, 9 Oct
19:00
Decent 69/100
gentle breeze, rain · 17 km/h
☀ 07:47–18:48
Week at a glance
Tap or drag to pick an hour. Everything below follows.Sat 00:0092 · Grand
Sat, 3 Oct, 00:00
92 Grand- light winds
- dry
Waves
–
Wind
9 km/h W · gusts 23
Tide
–
Air
7°C · dry
Meteogram
Score, waves, wind (green offshore, amber cross, red onshore), rain and air, tideHour by hour
Next 48 hours| Time | Dip | Waves | Period | From | Wind | Gust | Tide | Rain | Air | Why |
|---|---|---|---|---|---|---|---|---|---|---|
| Today | ||||||||||
| 00:00 | 92 Grand | – | – | – | 9 km/h W | 23 | – | dry | 7° | light winds, dry |
| 01:00 | 92 Grand | – | – | – | 9 km/h W | 21 | – | dry | 6° | light winds, dry |
| 02:00 | 86 Grand | – | – | – | 7 km/h W | 18 | – | dry | 6° | light winds, dry |
| 03:00 | 86 Grand | – | – | – | 6 km/h WNW | 17 | – | dry | 6° | light winds, dry |
| 04:00 | 86 Grand | – | – | – | 6 km/h NW | 15 | – | dry | 5° | light winds, dry |
| 05:00 | 86 Grand | – | – | – | 5 km/h NNW | 14 | – | dry | 6° | light winds, dry |
| 06:00 | 92 Grand | – | – | – | 7 km/h NW | 14 | – | dry | 6° | light winds, dry |
| 07:00 | 92 Grand | – | – | – | 6 km/h WNW | 15 | – | dry | 7° | light winds, dry |
| 08:00 | 92 Grand | – | – | – | 5 km/h WNW | 15 | – | dry | 8° | light winds, dry |
| 09:00 | 92 Grand | – | – | – | 4 km/h W | 16 | – | dry | 9° | light winds, dry |
| 10:00 | 97 Grand | – | – | – | 6 km/h SSW | 18 | – | dry | 10° | light winds, dry |
| 11:00 | 97 Grand | – | – | – | 8 km/h SW | 22 | – | dry | 11° | light winds, dry |
| 12:00 | 97 Grand | – | – | – | 12 km/h W | 24 | – | dry | 13° | light winds, dry |
| 13:00 | 94 Grand | – | – | – | 13 km/h WSW | 25 | – | dry | 14° | gentle breeze, dry, sunny |
| 14:00 | 94 Grand | – | – | – | 13 km/h WSW | 25 | – | dry | 14° | gentle breeze, dry |
| 15:00 | 94 Grand | – | – | – | 15 km/h WSW | 26 | – | dry | 15° | gentle breeze, dry |
| 16:00 | 94 Grand | – | – | – | 13 km/h SW | 26 | – | dry | 15° | gentle breeze, dry, sunny |
| 17:00 | 94 Grand | – | – | – | 14 km/h SW | 24 | – | dry | 15° | gentle breeze, dry, sunny |
| 18:00 | 100 Grand | – | – | – | 10 km/h SSW | 22 | – | dry | 14° | light winds, dry |
| 19:00 | 97 Grand | – | – | – | 6 km/h SSE | 17 | – | dry | 12° | light winds, dry |
| 20:00 | 92 Grand | – | – | – | 8 km/h SSE | 17 | – | dry | 10° | light winds, dry |
| 21:00 | 92 Grand | – | – | – | 7 km/h S | 19 | – | dry | 9° | light winds, dry |
| 22:00 | 92 Grand | – | – | – | 6 km/h S | 20 | – | dry | 9° | light winds, dry |
| 23:00 | 92 Grand | – | – | – | 8 km/h S | 22 | – | dry | 8° | light winds, dry |
| Sunday, 4 October | ||||||||||
| 00:00 | 92 Grand | – | – | – | 7 km/h SSE | 24 | – | dry | 8° | light winds, dry |
| 01:00 | 92 Grand | – | – | – | 7 km/h SSE | 26 | – | dry | 9° | light winds, dry |
| 02:00 | 92 Grand | – | – | – | 8 km/h SSE | 30 | – | dry | 10° | light winds, dry |
| 03:00 | 97 Grand | – | – | – | 8 km/h SSE | 32 | – | dry | 10° | light winds, dry |
| 04:00 | 97 Grand | – | – | – | 12 km/h S | 33 | – | dry | 11° | light winds, dry |
| 05:00 | 97 Grand | – | – | – | 10 km/h SSW | 33 | – | dry | 11° | light winds, dry |
| 06:00 | 97 Grand | – | – | – | 12 km/h SSW | 33 | – | dry | 12° | light winds, dry |
| 07:00 | 97 Grand | – | – | – | 11 km/h S | 33 | – | dry | 12° | light winds, dry |
| 08:00 | 97 Grand | – | – | – | 11 km/h SSW | 32 | – | dry | 12° | light winds, dry |
| 09:00 | 97 Grand | – | – | – | 10 km/h SSW | 32 | – | dry | 13° | light winds, dry |
| 10:00 | 100 Grand | – | – | – | 12 km/h SSW | 33 | – | dry | 14° | light winds, dry |
| 11:00 | 94 Grand | – | – | – | 15 km/h SSW | 34 | – | 0.1 mm | 15° | gentle breeze, dry |
| 12:00 | 94 Grand | – | – | – | 19 km/h SW | 35 | – | dry | 15° | gentle breeze, dry |
| 13:00 | 84 Grand | – | – | – | 20 km/h SW | 36 | – | 0.1 mm | 16° | moderate breeze, dry |
| 14:00 | 84 Grand | – | – | – | 21 km/h SW | 38 | – | 0.1 mm | 16° | moderate breeze, dry |
| 15:00 | 84 Grand | – | – | – | 21 km/h SW | 39 | – | dry | 16° | moderate breeze, dry |
| 16:00 | 84 Grand | – | – | – | 23 km/h SW | 39 | – | 0.1 mm | 16° | moderate breeze, dry |
| 17:00 | 84 Grand | – | – | – | 22 km/h SW | 39 | – | 0.1 mm | 16° | moderate breeze, dry |
| 18:00 | 84 Grand | – | – | – | 20 km/h SW | 39 | – | dry | 16° | moderate breeze, dry |
| 19:00 | 84 Grand | – | – | – | 20 km/h SW | 37 | – | dry | 16° | moderate breeze, dry |
| 20:00 | 94 Grand | – | – | – | 18 km/h SW | 37 | – | dry | 16° | gentle breeze, dry |
| 21:00 | 84 Grand | – | – | – | 21 km/h SW | 36 | – | dry | 16° | moderate breeze, dry |
| 22:00 | 84 Grand | – | – | – | 22 km/h WSW | 37 | – | dry | 16° | moderate breeze, dry |
| 23:00 | 84 Grand | – | – | – | 21 km/h WSW | 39 | – | dry | 16° | moderate breeze, dry |
The spot
Faces
Unknown (inland)
Swell window
None (sheltered)
Exposure
Lake
Water
Not classified
Lakes have no tide or swell; the score is wind, rain, air temperature and daylight. Know better? Tell us.
Getting there
Access, parking and swimming areas are not recorded for this lake. Respect private land.
Sauna after?
The Swilly Sauna · Main Beach car park, Rathmullan · 8 km · mobile
The Hot Barrel Sauna · Portsalon Pier (also Kerrykeel Pier) · 16 km · mobile
itSaunatrailer · The Wee Beach, Marble Hill, Dunfanaghy · 21 km · fixed
Cocoon Sauna · Portnablagh Pier, Dunfanaghy · 22 km · fixed
Put Thorn Lough in your calendar
Dipper Plus drops the best dip hour here into your phone every day, with waves, sea temperature, tide and a 45-minute nudge. Up to three spots.
Set up Dipper Plus🌊 Thorn Lough dip · GrandSat, 3 Oct 17:30–18:30 · light winds, dry
🌊 Thorn Lough dip · GrandSun, 4 Oct 09:30–10:30 · light winds, dry
🌊 Thorn Lough dip · GrandMon, 5 Oct 07:30–08:30 · gentle breeze, dry
Nearby spots
Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.