Lough Nasmullan
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
73
Decent · gentle breeze, rain
Wind
19 km/h
Gentle breeze, SSW, gusts 44
Daylight
07:34
Sunrise. Sunset 19:06. Air 12°C.
Best dip each day
Daylight hours, preferring low tideToday
17:00
Grand 91/100
gentle breeze, dry · 18 km/h
☀ 07:34–19:06
Sat, 3 Oct
11:00
Grand 94/100
gentle breeze, dry · 19 km/h
☀ 07:36–19:03
Sun, 4 Oct
08:00
Grand 84/100
moderate breeze, dry · 23 km/h
☀ 07:38–19:01
Mon, 5 Oct
10:00
Grand 86/100
gentle breeze, showers possible · 19 km/h
☀ 07:40–18:58
Tue, 6 Oct
10:00
Grand 89/100
light winds, showers possible · 11 km/h
☀ 07:42–18:56
Wed, 7 Oct
10:00
Grand 83/100
gentle breeze, showers possible · 14 km/h
☀ 07:44–18:53
Thu, 8 Oct
13:00
Grand 89/100
light winds, showers possible · 12 km/h
☀ 07:46–18:51
Week at a glance
Tap or drag to pick an hour. Everything below follows.Fri 14:0073 · Decent
Fri, 2 Oct, 14:00
73 Decent- gentle breeze
- rain
Waves
–
Wind
19 km/h SSW · gusts 44
Tide
–
Air
12°C · 1.3 mm rain
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 | ||||||||||
| 14:00 | 73 Decent | – | – | – | 19 km/h SSW | 44 | – | 1.3 mm | 12° | gentle breeze, rain |
| 15:00 | 83 Grand | – | – | – | 19 km/h SSW | 40 | – | 0.6 mm | 12° | gentle breeze, showers possible |
| 16:00 | 84 Grand | – | – | – | 26 km/h WSW | 41 | – | dry | 13° | moderate breeze, dry |
| 17:00 | 91 Grand | – | – | – | 18 km/h WSW | 39 | – | dry | 12° | gentle breeze, dry |
| 18:00 | 81 Grand | – | – | – | 21 km/h WSW | 40 | – | dry | 12° | moderate breeze, dry |
| 19:00 | 91 Grand | – | – | – | 15 km/h WSW | 36 | – | dry | 11° | gentle breeze, dry, sunny |
| 20:00 | 86 Grand | – | – | – | 17 km/h WSW | 28 | – | dry | 10° | gentle breeze, dry, sunny |
| 21:00 | 86 Grand | – | – | – | 18 km/h WSW | 26 | – | dry | 9° | gentle breeze, dry |
| 22:00 | 86 Grand | – | – | – | 14 km/h WSW | 24 | – | dry | 9° | gentle breeze, dry |
| 23:00 | 86 Grand | – | – | – | 18 km/h WSW | 24 | – | dry | 9° | gentle breeze, dry |
| Saturday, 3 October | ||||||||||
| 00:00 | 86 Grand | – | – | – | 15 km/h W | 22 | – | dry | 9° | gentle breeze, dry |
| 01:00 | 86 Grand | – | – | – | 15 km/h WSW | 21 | – | dry | 8° | gentle breeze, dry |
| 02:00 | 86 Grand | – | – | – | 16 km/h SW | 19 | – | dry | 7° | gentle breeze, dry |
| 03:00 | 86 Grand | – | – | – | 14 km/h SW | 18 | – | dry | 8° | gentle breeze, dry |
| 04:00 | 86 Grand | – | – | – | 16 km/h SW | 18 | – | dry | 9° | gentle breeze, dry |
| 05:00 | 86 Grand | – | – | – | 15 km/h SW | 18 | – | dry | 9° | gentle breeze, dry |
| 06:00 | 86 Grand | – | – | – | 14 km/h SW | 19 | – | dry | 9° | gentle breeze, dry |
| 07:00 | 86 Grand | – | – | – | 15 km/h WSW | 21 | – | dry | 10° | gentle breeze, dry |
| 08:00 | 91 Grand | – | – | – | 17 km/h WSW | 20 | – | dry | 10° | gentle breeze, dry |
| 09:00 | 91 Grand | – | – | – | 18 km/h WSW | 20 | – | dry | 11° | gentle breeze, dry |
| 10:00 | 91 Grand | – | – | – | 19 km/h WSW | 22 | – | dry | 12° | gentle breeze, dry, sunny |
| 11:00 | 94 Grand | – | – | – | 19 km/h WSW | 25 | – | dry | 13° | gentle breeze, dry |
| 12:00 | 94 Grand | – | – | – | 18 km/h WSW | 27 | – | dry | 14° | gentle breeze, dry |
| 13:00 | 94 Grand | – | – | – | 18 km/h SW | 28 | – | dry | 14° | gentle breeze, dry, sunny |
| 14:00 | 94 Grand | – | – | – | 18 km/h SW | 30 | – | dry | 15° | gentle breeze, dry, sunny |
| 15:00 | 94 Grand | – | – | – | 17 km/h SW | 31 | – | dry | 15° | gentle breeze, dry |
| 16:00 | 94 Grand | – | – | – | 18 km/h SSW | 32 | – | dry | 15° | gentle breeze, dry |
| 17:00 | 94 Grand | – | – | – | 18 km/h SSW | 32 | – | dry | 14° | gentle breeze, dry |
| 18:00 | 94 Grand | – | – | – | 14 km/h SSW | 31 | – | dry | 14° | gentle breeze, dry |
| 19:00 | 94 Grand | – | – | – | 17 km/h SSW | 29 | – | dry | 13° | gentle breeze, dry |
| 20:00 | 94 Grand | – | – | – | 18 km/h SSW | 31 | – | dry | 13° | gentle breeze, dry |
| 21:00 | 84 Grand | – | – | – | 25 km/h SSW | 34 | – | dry | 13° | moderate breeze, dry |
| 22:00 | 68 Decent | – | – | – | 31 km/h SSW | 37 | – | dry | 13° | fresh breeze, dry |
| 23:00 | 68 Decent | – | – | – | 31 km/h SSW | 39 | – | dry | 13° | fresh breeze, dry |
| Sunday, 4 October | ||||||||||
| 00:00 | 68 Decent | – | – | – | 30 km/h SSW | 40 | – | dry | 13° | fresh breeze, dry |
| 01:00 | 68 Decent | – | – | – | 31 km/h SSW | 41 | – | dry | 13° | fresh breeze, dry |
| 02:00 | 68 Decent | – | – | – | 30 km/h SSW | 42 | – | dry | 13° | fresh breeze, dry |
| 03:00 | 68 Decent | – | – | – | 29 km/h SSW | 42 | – | dry | 14° | fresh breeze, dry |
| 04:00 | 84 Grand | – | – | – | 27 km/h SSW | 42 | – | 0.1 mm | 14° | moderate breeze, dry |
| 05:00 | 68 Decent | – | – | – | 29 km/h SSW | 43 | – | 0.1 mm | 15° | fresh breeze, dry |
| 06:00 | 68 Decent | – | – | – | 30 km/h SW | 44 | – | 0.1 mm | 15° | fresh breeze, dry |
| 07:00 | 84 Grand | – | – | – | 27 km/h SW | 42 | – | 0.1 mm | 15° | moderate breeze, dry |
| 08:00 | 84 Grand | – | – | – | 23 km/h SW | 45 | – | 0.1 mm | 14° | moderate breeze, dry |
| 09:00 | 84 Grand | – | – | – | 23 km/h SW | 45 | – | dry | 14° | moderate breeze, dry |
| 10:00 | 84 Grand | – | – | – | 22 km/h SW | 45 | – | 0.1 mm | 15° | moderate breeze, dry |
| 11:00 | 84 Grand | – | – | – | 23 km/h SW | 45 | – | 0.1 mm | 15° | moderate breeze, dry |
| 12:00 | 84 Grand | – | – | – | 23 km/h SW | 46 | – | dry | 15° | moderate breeze, dry |
| 13:00 | 84 Grand | – | – | – | 22 km/h SW | 47 | – | 0.1 mm | 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?
itSaunatrailer · The Wee Beach, Marble Hill, Dunfanaghy · 10 km · fixed
The Hot Barrel Sauna · Portsalon Pier (also Kerrykeel Pier) · 11 km · mobile
Cocoon Sauna · Portnablagh Pier, Dunfanaghy · 12 km · fixed
The Swilly Sauna · Main Beach car park, Rathmullan · 15 km · mobile
Put Lough Nasmullan 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🌊 Lough Nasmullan dip · GrandFri, 2 Oct 16:30–17:30 · gentle breeze, dry
🌊 Lough Nasmullan dip · GrandSat, 3 Oct 10:30–11:30 · gentle breeze, dry
🌊 Lough Nasmullan dip · GrandSun, 4 Oct 07:30–08:30 · moderate breeze, dry
Nearby spots
Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.