Dipper › Co. Cavan

Derrylahan Lough

Monitored, not designated

🌊 Dip🏄 Surf
Any tidePrefer highPrefer low
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
27 km/h
Moderate breeze, S, gusts 48
Daylight
07:35
Sunrise. Sunset 19:07. Air 13°C.

Best surf each day

Daylight hours, preferring low tide
Today
10:00
Grim 0/100
no wave data here · 27 km/h
☀ 07:35–19:07
Sat, 3 Oct
08:00
Grim 0/100
no wave data here · 7 km/h
☀ 07:36–19:05
Sun, 4 Oct
08:00
Grim 0/100
no wave data here · 18 km/h
☀ 07:38–19:02
Mon, 5 Oct
10:00
Grim 0/100
no wave data here · 19 km/h
☀ 07:40–19:00
Tue, 6 Oct
10:00
Grim 0/100
no wave data here · 14 km/h
☀ 07:42–18:57
Wed, 7 Oct
10:00
Grim 0/100
no wave data here · 13 km/h
☀ 07:44–18:55
Thu, 8 Oct
13:00
Grim 0/100
no wave data here · 12 km/h
☀ 07:46–18:52

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 10:000 · Grimno wave data here
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 09:00 · 0 GrimFri 10:00 · 0 GrimFri 11:00 · 0 GrimFri 12:00 · 0 GrimFri 13:00 · 0 GrimFri 14:00 · 0 GrimFri 15:00 · 0 GrimFri 16:00 · 0 GrimFri 17:00 · 0 GrimFri 18:00 · 0 GrimFri 19:00 · 0 GrimFri 20:00 · 0 Grim · nightFri 21:00 · 0 Grim · nightFri 22:00 · 0 Grim · nightFri 23:00 · 0 Grim · nightSat 00:00 · 0 Grim · nightSat 01:00 · 0 Grim · nightSat 02:00 · 0 Grim · nightSat 03:00 · 0 Grim · nightSat 04:00 · 0 Grim · nightSat 05:00 · 0 Grim · nightSat 06:00 · 0 Grim · nightSat 07:00 · 0 Grim · nightSat 08:00 · 0 GrimSat 09:00 · 0 GrimSat 10:00 · 0 GrimSat 11:00 · 0 GrimSat 12:00 · 0 GrimSat 13:00 · 0 GrimSat 14:00 · 0 GrimSat 15:00 · 0 GrimSat 16:00 · 0 GrimSat 17:00 · 0 GrimSat 18:00 · 0 GrimSat 19:00 · 0 GrimSat 20:00 · 0 Grim · nightSat 21:00 · 0 Grim · nightSat 22:00 · 0 Grim · nightSat 23:00 · 0 Grim · nightSun 00:00 · 0 Grim · nightSun 01:00 · 0 Grim · nightSun 02:00 · 0 Grim · nightSun 03:00 · 0 Grim · nightSun 04:00 · 0 Grim · nightSun 05:00 · 0 Grim · nightSun 06:00 · 0 Grim · nightSun 07:00 · 0 Grim · nightSun 08:00 · 0 GrimSun 09:00 · 0 GrimSun 10:00 · 0 GrimSun 11:00 · 0 GrimSun 12:00 · 0 GrimSun 13:00 · 0 GrimSun 14:00 · 0 GrimSun 15:00 · 0 GrimSun 16:00 · 0 GrimSun 17:00 · 0 GrimSun 18:00 · 0 GrimSun 19:00 · 0 GrimSun 20:00 · 0 Grim · nightSun 21:00 · 0 Grim · nightSun 22:00 · 0 Grim · nightSun 23:00 · 0 Grim · nightMon 00:00 · 0 Grim · nightMon 01:00 · 0 Grim · nightMon 02:00 · 0 Grim · nightMon 03:00 · 0 Grim · nightMon 04:00 · 0 Grim · nightMon 05:00 · 0 Grim · nightMon 06:00 · 0 Grim · nightMon 07:00 · 0 Grim · nightMon 10:00 · 0 GrimMon 13:00 · 0 GrimMon 16:00 · 0 GrimMon 19:00 · 0 GrimMon 22:00 · 0 Grim · nightTue 01:00 · 0 Grim · nightTue 04:00 · 0 Grim · nightTue 07:00 · 0 Grim · nightTue 10:00 · 0 GrimTue 13:00 · 0 GrimTue 16:00 · 0 GrimTue 19:00 · 0 GrimTue 22:00 · 0 Grim · nightWed 01:00 · 0 Grim · nightWed 04:00 · 0 Grim · nightWed 07:00 · 0 Grim · nightWed 10:00 · 0 GrimWed 13:00 · 0 GrimWed 19:00 · 0 GrimThu 01:00 · 0 Grim · nightThu 07:00 · 0 Grim · nightThu 13:00 · 0 GrimThu 19:00 · 0 Grim

Fri, 2 Oct, 10:00

0 Grim
  • no wave data here
NESWsunrisesunset27 km/h
facing unknown
Waves
–
Wind
27 km/h S · gusts 48
Tide
–
Air
13°C · dry

Meteogram

Score, waves, wind (green offshore, amber cross, red onshore), rain and air, tide

Hour by hour

Next 48 hours
TimeSurfWavesPeriodFromWindGustTideRainAirWhy
Today
10:000 Grim–––27 km/h S48–dry13°no wave data here
11:000 Grim–––27 km/h S52–0.4 mm13°no wave data here
12:000 Grim–––33 km/h S55–1.9 mm14°no wave data here
13:000 Grim–––36 km/h S59–4.1 mm14°no wave data here
14:000 Grim–––30 km/h SSW58–3.8 mm14°no wave data here
15:000 Grim–––18 km/h SW48–1.1 mm13°no wave data here
16:000 Grim–––19 km/h SW42–0.1 mm15°no wave data here
17:000 Grim–––19 km/h W39–dry14°no wave data here
18:000 Grim–––18 km/h WNW37–dry13°no wave data here
19:000 Grim–––11 km/h W36–dry12°no wave data here
20:000 Grim–––14 km/h WSW27–dry11°no wave data here
21:000 Grim–––9 km/h SW23–dry9°no wave data here
22:000 Grim–––10 km/h WSW22–dry8°no wave data here
23:000 Grim–––11 km/h WSW21–dry8°no wave data here
Saturday, 3 October
00:000 Grim–––9 km/h WSW20–dry7°no wave data here
01:000 Grim–––8 km/h SSW18–dry6°no wave data here
02:000 Grim–––7 km/h S17–dry5°no wave data here
03:000 Grim–––7 km/h S16–dry5°no wave data here
04:000 Grim–––7 km/h S16–dry7°no wave data here
05:000 Grim–––7 km/h SSE17–dry7°no wave data here
06:000 Grim–––8 km/h S17–dry6°no wave data here
07:000 Grim–––6 km/h SSE17–dry6°no wave data here
08:000 Grim–––7 km/h S17–dry6°no wave data here
09:000 Grim–––6 km/h SSW17–dry8°no wave data here
10:000 Grim–––8 km/h SSW18–dry10°no wave data here
11:000 Grim–––9 km/h SSW21–dry12°no wave data here
12:000 Grim–––12 km/h SSW23–dry13°no wave data here
13:000 Grim–––13 km/h SSW25–dry14°no wave data here
14:000 Grim–––14 km/h SSW28–dry15°no wave data here
15:000 Grim–––17 km/h SSW31–dry15°no wave data here
16:000 Grim–––17 km/h SSW32–dry15°no wave data here
17:000 Grim–––20 km/h SSW33–dry15°no wave data here
18:000 Grim–––17 km/h SSW31–dry14°no wave data here
19:000 Grim–––15 km/h SSW28–dry13°no wave data here
20:000 Grim–––15 km/h SSW28–dry13°no wave data here
21:000 Grim–––16 km/h SSW31–dry12°no wave data here
22:000 Grim–––18 km/h SSW35–dry12°no wave data here
23:000 Grim–––18 km/h SSW37–dry13°no wave data here
Sunday, 4 October
00:000 Grim–––19 km/h SSW39–dry12°no wave data here
01:000 Grim–––20 km/h SSW40–dry12°no wave data here
02:000 Grim–––20 km/h SSW40–dry12°no wave data here
03:000 Grim–––19 km/h SSW40–0.1 mm12°no wave data here
04:000 Grim–––17 km/h SSW41–0.1 mm13°no wave data here
05:000 Grim–––20 km/h SSW41–0.1 mm13°no wave data here
06:000 Grim–––19 km/h SSW41–0.1 mm14°no wave data here
07:000 Grim–––18 km/h SSW41–0.1 mm14°no wave data here
08:000 Grim–––18 km/h SW36–0.1 mm14°no wave data here
09:000 Grim–––18 km/h SW36–0.1 mm14°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

Open in Maps · OpenStreetMap

Access, parking and swimming areas are not recorded for this lake. Respect private land.

Sauna after?

Lough Allen Adventure Sauna · Lough Allen Adventure Centre, Ballinaglera, Co. Leitrim · 15 km · fixed

Salt and Ember Sauna · Bundoran (also Creevy Pier, Rossnowlagh Beach), Co. Donegal · 36 km · mobile

Put Derrylahan Lough 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
🏄 Derrylahan Lough surf · GrimFri, 2 Oct 09:30–10:30 · no wave data here
🏄 Derrylahan Lough surf · GrimSat, 3 Oct 07:30–08:30 · no wave data here
🏄 Derrylahan Lough surf · GrimSun, 4 Oct 07:30–08:30 · no wave data here

Nearby spots

Lough Aglaur

1 km · Co. Cavan · Not classified

Lattone Lough

1 km · Co. Cavan · Not classified

Carricknacrannoge Lough

1 km · Co. Cavan · Not classified

Drumhurrin Lough

1 km · Co. Cavan · Not classified

Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.