Lough Nastachan
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.
Surf score now
0
Grim · no wave data here
Wind
26 km/h
Moderate breeze, S, gusts 41
Daylight
07:32
Sunrise. Sunset 19:03. Air 12°C.
Best surf each day
Daylight hoursToday
08:00
Grim 0/100
no wave data here · 23 km/h
☀ 07:32–19:03
Sat, 3 Oct
08:00
Grim 0/100
no wave data here · 15 km/h
☀ 07:34–19:00
Sun, 4 Oct
08:00
Grim 0/100
no wave data here · 25 km/h
☀ 07:36–18:58
Mon, 5 Oct
10:00
Grim 0/100
no wave data here · 21 km/h
☀ 07:37–18:55
Tue, 6 Oct
10:00
Grim 0/100
no wave data here · 14 km/h
☀ 07:39–18:53
Wed, 7 Oct
10:00
Grim 0/100
no wave data here · 14 km/h
☀ 07:41–18:50
Thu, 8 Oct
13:00
Grim 0/100
no wave data here · 13 km/h
☀ 07:43–18:48
Week at a glance
Tap or drag to pick an hour. Everything below follows.Fri 07:000 · Grim
Fri, 2 Oct, 07:00
0 Grim- no wave data here
Waves
–
Wind
26 km/h S · gusts 41
Tide
–
Air
12°C · dry
Meteogram
Score, waves, wind (green offshore, amber cross, red onshore), rain and air, tideHour by hour
Next 48 hours| Time | Surf | Waves | Period | From | Wind | Gust | Tide | Rain | Air | Why |
|---|---|---|---|---|---|---|---|---|---|---|
| Today | ||||||||||
| 07:00 | 0 Grim | – | – | – | 26 km/h S | 41 | – | dry | 12° | no wave data here |
| 08:00 | 0 Grim | – | – | – | 23 km/h S | 40 | – | dry | 12° | no wave data here |
| 09:00 | 0 Grim | – | – | – | 26 km/h S | 41 | – | dry | 13° | no wave data here |
| 10:00 | 0 Grim | – | – | – | 27 km/h S | 44 | – | dry | 13° | no wave data here |
| 11:00 | 0 Grim | – | – | – | 27 km/h S | 47 | – | dry | 14° | no wave data here |
| 12:00 | 0 Grim | – | – | – | 26 km/h S | 48 | – | 0.4 mm | 14° | no wave data here |
| 13:00 | 0 Grim | – | – | – | 23 km/h S | 48 | – | 1.8 mm | 14° | no wave data here |
| 14:00 | 0 Grim | – | – | – | 28 km/h S | 49 | – | 2.4 mm | 14° | no wave data here |
| 15:00 | 0 Grim | – | – | – | 19 km/h SW | 51 | – | 1.8 mm | 12° | no wave data here |
| 16:00 | 0 Grim | – | – | – | 22 km/h SW | 46 | – | 0.5 mm | 13° | no wave data here |
| 17:00 | 0 Grim | – | – | – | 18 km/h WSW | 42 | – | dry | 14° | no wave data here |
| 18:00 | 0 Grim | – | – | – | 17 km/h WSW | 39 | – | dry | 13° | no wave data here |
| 19:00 | 0 Grim | – | – | – | 15 km/h WSW | 35 | – | dry | 11° | no wave data here |
| 20:00 | 0 Grim | – | – | – | 15 km/h SW | 28 | – | dry | 10° | no wave data here |
| 21:00 | 0 Grim | – | – | – | 17 km/h WSW | 27 | – | dry | 11° | no wave data here |
| 22:00 | 0 Grim | – | – | – | 18 km/h WSW | 28 | – | dry | 9° | no wave data here |
| 23:00 | 0 Grim | – | – | – | 17 km/h WSW | 28 | – | dry | 10° | no wave data here |
| Saturday, 3 October | ||||||||||
| 00:00 | 0 Grim | – | – | – | 15 km/h WSW | 27 | – | dry | 9° | no wave data here |
| 01:00 | 0 Grim | – | – | – | 14 km/h W | 26 | – | dry | 9° | no wave data here |
| 02:00 | 0 Grim | – | – | – | 13 km/h SW | 25 | – | dry | 8° | no wave data here |
| 03:00 | 0 Grim | – | – | – | 14 km/h SW | 23 | – | dry | 8° | no wave data here |
| 04:00 | 0 Grim | – | – | – | 15 km/h SW | 24 | – | dry | 8° | no wave data here |
| 05:00 | 0 Grim | – | – | – | 14 km/h SSW | 24 | – | dry | 9° | no wave data here |
| 06:00 | 0 Grim | – | – | – | 12 km/h SSW | 24 | – | dry | 9° | no wave data here |
| 07:00 | 0 Grim | – | – | – | 12 km/h SSW | 25 | – | dry | 9° | no wave data here |
| 08:00 | 0 Grim | – | – | – | 15 km/h SW | 26 | – | dry | 9° | no wave data here |
| 09:00 | 0 Grim | – | – | – | 14 km/h SW | 25 | – | dry | 10° | no wave data here |
| 10:00 | 0 Grim | – | – | – | 12 km/h SW | 27 | – | dry | 12° | no wave data here |
| 11:00 | 0 Grim | – | – | – | 13 km/h WSW | 27 | – | dry | 13° | no wave data here |
| 12:00 | 0 Grim | – | – | – | 12 km/h WSW | 28 | – | dry | 14° | no wave data here |
| 13:00 | 0 Grim | – | – | – | 15 km/h SW | 29 | – | dry | 14° | no wave data here |
| 14:00 | 0 Grim | – | – | – | 15 km/h SW | 30 | – | dry | 15° | no wave data here |
| 15:00 | 0 Grim | – | – | – | 16 km/h SW | 31 | – | dry | 15° | no wave data here |
| 16:00 | 0 Grim | – | – | – | 16 km/h SSW | 32 | – | dry | 15° | no wave data here |
| 17:00 | 0 Grim | – | – | – | 17 km/h SSW | 32 | – | dry | 15° | no wave data here |
| 18:00 | 0 Grim | – | – | – | 16 km/h S | 31 | – | dry | 14° | no wave data here |
| 19:00 | 0 Grim | – | – | – | 18 km/h S | 30 | – | dry | 13° | no wave data here |
| 20:00 | 0 Grim | – | – | – | 19 km/h S | 33 | – | dry | 13° | no wave data here |
| 21:00 | 0 Grim | – | – | – | 23 km/h S | 37 | – | dry | 13° | no wave data here |
| 22:00 | 0 Grim | – | – | – | 28 km/h S | 40 | – | dry | 13° | no wave data here |
| 23:00 | 0 Grim | – | – | – | 29 km/h S | 43 | – | dry | 13° | no wave data here |
| Sunday, 4 October | ||||||||||
| 00:00 | 0 Grim | – | – | – | 30 km/h S | 45 | – | dry | 13° | no wave data here |
| 01:00 | 0 Grim | – | – | – | 31 km/h S | 46 | – | dry | 13° | no wave data here |
| 02:00 | 0 Grim | – | – | – | 30 km/h SSW | 47 | – | dry | 13° | no wave data here |
| 03:00 | 0 Grim | – | – | – | 30 km/h SSW | 47 | – | dry | 13° | no wave data here |
| 04:00 | 0 Grim | – | – | – | 28 km/h SSW | 46 | – | dry | 13° | no wave data here |
| 05:00 | 0 Grim | – | – | – | 28 km/h SSW | 46 | – | 0.1 mm | 13° | no wave data here |
| 06:00 | 0 Grim | – | – | – | 26 km/h SSW | 45 | – | dry | 13° | no wave data here |
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 Sea View Sauna (Culdaff) · Culdaff Beach car park · 7 km · fixed
The Sea View Sauna (Shroove) · Shroove Beach, Greencastle, Inishowen · 10 km · fixed
HotBox Sea Sauna (Benone) · Benone Strand, Magilligan, Co. Londonderry (NI) · 16 km · fixed
Sauna & Sea · Portstewart Strand (National Trust), Co. Londonderry (NI) · 24 km · fixed
Put Lough Nastachan in your calendar
Dipper Plus drops the best surf 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🏄 Lough Nastachan surf · GrimFri, 2 Oct 07:30–08:30 · no wave data here
🏄 Lough Nastachan surf · GrimSat, 3 Oct 07:30–08:30 · no wave data here
🏄 Lough Nastachan surf · GrimSun, 4 Oct 07:30–08:30 · no wave data here
Nearby spots
Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.