Dipper › Co. Donegal

Lough Herwainan

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.
Dip score now
83
Grand · gentle breeze, showers possible
Wind
17 km/h
Gentle breeze, WSW, gusts 46
Daylight
07:36
Sunrise. Sunset 19:07. Air 13°C.

Best dip each day

Daylight hours
Today
17:00
Grand 91/100
gentle breeze, dry · 17 km/h
☀ 07:36–19:07
Sat, 3 Oct
10:00
Grand 94/100
gentle breeze, dry · 17 km/h
☀ 07:38–19:05
Sun, 4 Oct
15:00
Grand 84/100
moderate breeze, dry · 28 km/h
☀ 07:40–19:02
Mon, 5 Oct
16:00
Decent 70/100
moderate breeze, rain · 28 km/h
☀ 07:42–19:00
Tue, 6 Oct
10:00
Grand 83/100
gentle breeze, showers possible · 12 km/h
☀ 07:44–18:57
Wed, 7 Oct
10:00
Decent 79/100
gentle breeze, rain · 19 km/h
☀ 07:45–18:55
Thu, 8 Oct
13:00
Grand 83/100
gentle breeze, showers possible · 17 km/h
☀ 07:47–18:52

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 16:0083 · Grandgentle breeze · showers possible
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 08:00 · 81 GrandFri 09:00 · 76 DecentFri 10:00 · 54 FreshFri 11:00 · 52 FreshFri 12:00 · 50 FreshFri 13:00 · 36 BlowyFri 14:00 · 64 DecentFri 15:00 · 76 DecentFri 16:00 · 83 GrandFri 17:00 · 91 GrandFri 18:00 · 91 GrandFri 19:00 · 81 GrandFri 20:00 · 91 Grand · nightFri 21:00 · 81 Grand · nightFri 22:00 · 91 Grand · nightFri 23:00 · 81 Grand · nightSat 00:00 · 91 Grand · nightSat 01:00 · 91 Grand · nightSat 02:00 · 91 Grand · nightSat 03:00 · 91 Grand · nightSat 04:00 · 91 Grand · nightSat 05:00 · 81 Grand · nightSat 06:00 · 91 Grand · nightSat 07:00 · 91 Grand · nightSat 08:00 · 91 GrandSat 09:00 · 91 GrandSat 10:00 · 94 GrandSat 11:00 · 94 GrandSat 12:00 · 94 GrandSat 13:00 · 84 GrandSat 14:00 · 84 GrandSat 15:00 · 94 GrandSat 16:00 · 94 GrandSat 17:00 · 84 GrandSat 18:00 · 94 GrandSat 19:00 · 94 GrandSat 20:00 · 84 Grand · nightSat 21:00 · 68 Decent · nightSat 22:00 · 68 Decent · nightSat 23:00 · 68 Decent · nightSun 00:00 · 60 Fresh · nightSun 01:00 · 60 Fresh · nightSun 02:00 · 60 Fresh · nightSun 03:00 · 60 Fresh · nightSun 04:00 · 52 Fresh · nightSun 05:00 · 52 Fresh · nightSun 06:00 · 52 Fresh · nightSun 07:00 · 52 Fresh · nightSun 08:00 · 60 FreshSun 09:00 · 60 FreshSun 10:00 · 76 DecentSun 11:00 · 76 DecentSun 12:00 · 60 FreshSun 13:00 · 60 FreshSun 14:00 · 60 FreshSun 15:00 · 84 GrandSun 16:00 · 68 DecentSun 17:00 · 68 DecentSun 18:00 · 68 DecentSun 19:00 · 60 FreshSun 20:00 · 60 Fresh · nightSun 21:00 · 68 Decent · nightSun 22:00 · 68 Decent · nightSun 23:00 · 68 Decent · nightMon 00:00 · 68 Decent · nightMon 01:00 · 68 Decent · nightMon 02:00 · 68 Decent · nightMon 03:00 · 68 Decent · nightMon 04:00 · 68 Decent · nightMon 05:00 · 68 Decent · nightMon 06:00 · 60 Fresh · nightMon 07:00 · 60 Fresh · nightMon 10:00 · 56 FreshMon 13:00 · 55 FreshMon 16:00 · 70 DecentMon 19:00 · 70 DecentMon 22:00 · 69 Decent · nightTue 01:00 · 79 Decent · nightTue 04:00 · 66 Decent · nightTue 07:00 · 78 Decent · nightTue 10:00 · 83 GrandTue 13:00 · 83 GrandTue 16:00 · 83 GrandTue 19:00 · 83 GrandTue 22:00 · 89 Grand · nightWed 01:00 · 89 Grand · nightWed 04:00 · 83 Grand · nightWed 07:00 · 79 Decent · nightWed 10:00 · 79 DecentWed 13:00 · 69 DecentWed 19:00 · 66 DecentThu 01:00 · 69 Decent · nightThu 07:00 · 79 Decent · nightThu 13:00 · 83 GrandThu 19:00 · 73 Decent

Fri, 2 Oct, 16:00

83 Grand
  • gentle breeze
  • showers possible
NESWsunrisesunset17 km/h
facing unknown
Waves
–
Wind
17 km/h WSW · gusts 46
Tide
–
Air
13°C · 0.2 mm rain

Meteogram

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

Hour by hour

Next 48 hours
TimeDipWavesPeriodFromWindGustTideRainAirWhy
Today
15:0076 Decent–––26 km/h SSW50–0.4 mm13°moderate breeze, showers possible
16:0083 Grand–––17 km/h WSW46–0.2 mm13°gentle breeze, showers possible
17:0091 Grand–––17 km/h WSW45–dry13°gentle breeze, dry
18:0091 Grand–––18 km/h WSW47–dry12°gentle breeze, dry
19:0081 Grand–––25 km/h W44–dry11°moderate breeze, dry
20:0091 Grand–––17 km/h W39–dry11°gentle breeze, dry
21:0081 Grand–––21 km/h WSW37–dry11°moderate breeze, dry
22:0091 Grand–––14 km/h WSW37–dry11°gentle breeze, dry
23:0081 Grand–––20 km/h W35–dry11°moderate breeze, dry
Saturday, 3 October
00:0091 Grand–––17 km/h W33–dry11°gentle breeze, dry
01:0091 Grand–––14 km/h WSW31–dry10°gentle breeze, dry
02:0091 Grand–––13 km/h WSW30–dry10°gentle breeze, dry
03:0091 Grand–––14 km/h WSW30–dry10°gentle breeze, dry
04:0091 Grand–––15 km/h WSW31–dry11°gentle breeze, dry
05:0081 Grand–––20 km/h WSW33–dry12°moderate breeze, dry
06:0091 Grand–––16 km/h WSW34–0.1 mm12°gentle breeze, dry
07:0091 Grand–––19 km/h WSW34–0.1 mm12°gentle breeze, dry
08:0091 Grand–––14 km/h WSW32–dry11°gentle breeze, dry
09:0091 Grand–––13 km/h SW30–dry12°gentle breeze, dry
10:0094 Grand–––17 km/h WSW30–dry13°gentle breeze, dry
11:0094 Grand–––18 km/h WSW32–dry14°gentle breeze, dry
12:0094 Grand–––19 km/h SW34–dry14°gentle breeze, dry
13:0084 Grand–––21 km/h SW36–dry15°moderate breeze, dry, sunny
14:0084 Grand–––21 km/h SW36–dry15°moderate breeze, dry, sunny
15:0094 Grand–––19 km/h SW37–dry15°gentle breeze, dry
16:0094 Grand–––19 km/h SW38–dry15°gentle breeze, dry
17:0084 Grand–––20 km/h SSW39–dry15°moderate breeze, dry
18:0094 Grand–––16 km/h SSW38–dry14°gentle breeze, dry
19:0094 Grand–––13 km/h SSW38–dry14°gentle breeze, dry
20:0084 Grand–––22 km/h SSW41–dry14°moderate breeze, dry
21:0068 Decent–––29 km/h SSW47–dry14°fresh breeze, dry
22:0068 Decent–––31 km/h SSW50–dry14°fresh breeze, dry
23:0068 Decent–––33 km/h SSW53–dry14°fresh breeze, dry
Sunday, 4 October
00:0060 Fresh–––33 km/h SSW54–dry14°fresh breeze, dry
01:0060 Fresh–––34 km/h SSW55–0.1 mm14°fresh breeze, dry
02:0060 Fresh–––36 km/h SSW56–0.1 mm14°fresh breeze, dry
03:0060 Fresh–––36 km/h SSW57–0.1 mm14°fresh breeze, dry
04:0052 Fresh–––34 km/h SSW57–0.2 mm14°fresh breeze, showers possible
05:0052 Fresh–––35 km/h SSW57–0.2 mm14°fresh breeze, showers possible
06:0052 Fresh–––33 km/h SSW57–0.2 mm15°fresh breeze, showers possible
07:0052 Fresh–––29 km/h SW57–0.2 mm15°fresh breeze, showers possible
08:0060 Fresh–––31 km/h SW48–0.1 mm15°fresh breeze, showers possible
09:0060 Fresh–––31 km/h SW47–0.1 mm15°fresh breeze, showers possible
10:0076 Decent–––28 km/h SW47–0.1 mm15°moderate breeze, showers possible
11:0076 Decent–––28 km/h SW48–0.1 mm15°moderate breeze, showers possible
12:0060 Fresh–––30 km/h SW48–0.1 mm16°fresh breeze, showers possible
13:0060 Fresh–––32 km/h SW49–0.1 mm16°fresh breeze, showers possible
14:0060 Fresh–––31 km/h SW50–0.1 mm16°fresh breeze, showers possible

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?

Cocoon Sauna · Portnablagh Pier, Dunfanaghy · 16 km · fixed

itSaunatrailer · The Wee Beach, Marble Hill, Dunfanaghy · 17 km · fixed

Put Lough Herwainan 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 Herwainan dip · GrandFri, 2 Oct 16:30–17:30 · gentle breeze, dry
🌊 Lough Herwainan dip · GrandSat, 3 Oct 09:30–10:30 · gentle breeze, dry
🌊 Lough Herwainan dip · GrandSun, 4 Oct 14:30–15:30 · moderate breeze, dry

Nearby spots

Rocktown Lough

1 km · Co. Donegal · Not classified

Magheraroarty

3 km · Co. Donegal · Excellent Quality

Lough Lagha

3 km · Co. Donegal · Not classified

Mac Alea's Lough

4 km · Co. Donegal · Not classified

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