Dipper › Co. Donegal

Lough Altan

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
48
Fresh · fresh breeze, rain
Wind
31 km/h
Fresh breeze, S, gusts 52
Daylight
07:36
Sunrise. Sunset 19:07. Air 13°C.

Best dip each day

Daylight hours, preferring low tide
Today
17:00
Grand 91/100
gentle breeze, dry · 19 km/h
☀ 07:36–19:07
Sat, 3 Oct
08:00
Grand 91/100
gentle breeze, dry · 17 km/h
☀ 07:37–19:05
Sun, 4 Oct
08:00
Decent 76/100
moderate breeze, showers possible · 25 km/h
☀ 07:39–19:02
Mon, 5 Oct
10:00
Decent 71/100
moderate breeze, rain · 24 km/h
☀ 07:41–19:00
Tue, 6 Oct
10:00
Grand 89/100
light winds, showers possible · 12 km/h
☀ 07:43–18:57
Wed, 7 Oct
10:00
Decent 74/100
gentle breeze, rain · 16 km/h
☀ 07:45–18:54
Thu, 8 Oct
13:00
Grand 83/100
gentle breeze, showers possible · 15 km/h
☀ 07:47–18:52

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 11:0048 · Freshfresh breeze · rain
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 09:00 · 73 DecentFri 10:00 · 51 FreshFri 11:00 · 48 FreshFri 12:00 · 28 BlowyFri 13:00 · 46 FreshFri 14:00 · 62 DecentFri 15:00 · 73 DecentFri 16:00 · 73 DecentFri 17:00 · 91 GrandFri 18:00 · 81 GrandFri 19:00 · 81 GrandFri 20:00 · 86 Grand · nightFri 21:00 · 76 Decent · nightFri 22:00 · 86 Grand · nightFri 23:00 · 76 Decent · nightSat 00:00 · 86 Grand · nightSat 01:00 · 86 Grand · nightSat 02:00 · 86 Grand · nightSat 03:00 · 86 Grand · nightSat 04:00 · 86 Grand · nightSat 05:00 · 76 Decent · nightSat 06:00 · 86 Grand · nightSat 07:00 · 73 Decent · nightSat 08:00 · 91 GrandSat 09:00 · 91 GrandSat 10:00 · 91 GrandSat 11:00 · 91 GrandSat 12:00 · 91 GrandSat 13:00 · 84 GrandSat 14:00 · 84 GrandSat 15:00 · 84 GrandSat 16:00 · 84 GrandSat 17:00 · 84 GrandSat 18:00 · 91 GrandSat 19:00 · 81 GrandSat 20:00 · 81 Grand · nightSat 21:00 · 81 Grand · nightSat 22:00 · 65 Decent · nightSat 23:00 · 65 Decent · nightSun 00:00 · 65 Decent · nightSun 01:00 · 65 Decent · nightSun 02:00 · 57 Fresh · nightSun 03:00 · 49 Fresh · nightSun 04:00 · 52 Fresh · nightSun 05:00 · 52 Fresh · nightSun 06:00 · 52 Fresh · nightSun 07:00 · 52 Fresh · nightSun 08:00 · 76 DecentSun 09:00 · 76 DecentSun 10:00 · 76 DecentSun 11:00 · 76 DecentSun 12:00 · 76 DecentSun 13:00 · 76 DecentSun 14:00 · 76 DecentSun 15:00 · 76 DecentSun 16:00 · 60 FreshSun 17:00 · 76 DecentSun 18:00 · 60 FreshSun 19:00 · 60 FreshSun 20:00 · 76 Decent · nightSun 21:00 · 84 Grand · nightSun 22:00 · 84 Grand · nightSun 23:00 · 60 Fresh · nightMon 00:00 · 68 Decent · nightMon 01:00 · 68 Decent · nightMon 02:00 · 68 Decent · nightMon 03:00 · 68 Decent · nightMon 04:00 · 60 Fresh · nightMon 05:00 · 60 Fresh · nightMon 06:00 · 60 Fresh · nightMon 07:00 · 76 Decent · nightMon 10:00 · 71 DecentMon 13:00 · 70 DecentMon 16:00 · 69 DecentMon 19:00 · 69 DecentMon 22:00 · 79 Decent · nightTue 01:00 · 76 Decent · nightTue 04:00 · 76 Decent · nightTue 07:00 · 84 Grand · nightTue 10:00 · 89 GrandTue 13:00 · 83 GrandTue 16:00 · 83 GrandTue 19:00 · 84 GrandTue 22:00 · 84 Grand · nightWed 01:00 · 84 Grand · nightWed 04:00 · 84 Grand · nightWed 07:00 · 84 Grand · nightWed 10:00 · 74 DecentWed 13:00 · 69 DecentWed 19:00 · 71 DecentThu 01:00 · 64 Decent · nightThu 07:00 · 84 Grand · nightThu 13:00 · 83 GrandThu 19:00 · 73 Decent

Fri, 2 Oct, 11:00

48 Fresh
  • fresh breeze
  • rain
NESWsunrisesunset31 km/h
facing unknown
Waves
–
Wind
31 km/h S · gusts 52
Tide
–
Air
13°C · 1.1 mm rain

Meteogram

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

Hour by hour

Next 48 hours
TimeDipWavesPeriodFromWindGustTideRainAirWhy
Today
10:0051 Fresh–––32 km/h SSE49–0.6 mm12°fresh breeze, rain
11:0048 Fresh–––31 km/h S52–1.1 mm13°fresh breeze, rain
12:0028 Blowy–––30 km/h S55–3.1 mm13°fresh breeze, rain
13:0046 Fresh–––28 km/h SSW56–2.8 mm13°moderate breeze, rain
14:0062 Decent–––24 km/h SSW54–1.5 mm12°moderate breeze, rain
15:0073 Decent–––26 km/h SSW51–0.4 mm12°moderate breeze, showers possible
16:0073 Decent–––21 km/h WSW47–0.2 mm12°moderate breeze, showers possible
17:0091 Grand–––19 km/h WSW45–dry11°gentle breeze, dry
18:0081 Grand–––20 km/h WSW45–dry11°moderate breeze, dry
19:0081 Grand–––28 km/h W40–dry10°moderate breeze, dry
20:0086 Grand–––18 km/h W33–dry10°gentle breeze, dry
21:0076 Decent–––20 km/h W31–dry10°moderate breeze, dry
22:0086 Grand–––17 km/h W30–dry10°gentle breeze, dry
23:0076 Decent–––23 km/h W29–dry10°moderate breeze, dry
Saturday, 3 October
00:0086 Grand–––19 km/h W27–dry9°gentle breeze, dry
01:0086 Grand–––15 km/h WSW25–dry8°gentle breeze, dry
02:0086 Grand–––15 km/h WSW24–dry8°gentle breeze, dry
03:0086 Grand–––16 km/h WSW25–dry9°gentle breeze, dry
04:0086 Grand–––18 km/h WSW27–dry9°gentle breeze, dry
05:0076 Decent–––20 km/h WSW29–dry10°moderate breeze, dry
06:0086 Grand–––17 km/h WSW30–0.1 mm10°gentle breeze, dry
07:0073 Decent–––21 km/h WSW30–0.2 mm10°moderate breeze, showers possible
08:0091 Grand–––17 km/h WSW28–dry10°gentle breeze, dry
09:0091 Grand–––14 km/h WSW26–dry10°gentle breeze, dry
10:0091 Grand–––18 km/h WSW28–dry12°gentle breeze, dry
11:0091 Grand–––19 km/h WSW31–dry12°gentle breeze, dry
12:0091 Grand–––19 km/h WSW33–dry13°gentle breeze, dry
13:0084 Grand–––21 km/h SW35–dry13°moderate breeze, dry, sunny
14:0084 Grand–––21 km/h SW36–dry13°moderate breeze, dry, sunny
15:0084 Grand–––20 km/h SW37–dry14°moderate breeze, dry
16:0084 Grand–––22 km/h SW39–dry14°moderate breeze, dry
17:0084 Grand–––22 km/h SSW40–dry13°moderate breeze, dry
18:0091 Grand–––18 km/h SSW40–dry13°gentle breeze, dry
19:0081 Grand–––24 km/h SSW40–dry13°moderate breeze, dry
20:0081 Grand–––25 km/h SSW42–dry12°moderate breeze, dry
21:0081 Grand–––27 km/h SSW45–dry12°moderate breeze, dry
22:0065 Decent–––30 km/h SSW48–dry12°fresh breeze, dry
23:0065 Decent–––31 km/h SSW50–dry12°fresh breeze, dry
Sunday, 4 October
00:0065 Decent–––31 km/h SSW52–dry13°fresh breeze, dry
01:0065 Decent–––33 km/h SSW54–0.1 mm13°fresh breeze, dry
02:0057 Fresh–––36 km/h SSW55–0.1 mm13°fresh breeze, dry
03:0049 Fresh–––36 km/h SSW55–0.2 mm13°fresh breeze, showers possible
04:0052 Fresh–––35 km/h SW55–0.3 mm13°fresh breeze, showers possible
05:0052 Fresh–––38 km/h SSW56–0.3 mm13°fresh breeze, showers possible
06:0052 Fresh–––36 km/h SW56–0.3 mm14°fresh breeze, showers possible
07:0052 Fresh–––32 km/h SW55–0.3 mm14°fresh breeze, showers possible
08:0076 Decent–––25 km/h SW46–0.2 mm14°moderate breeze, showers possible
09:0076 Decent–––26 km/h SW45–0.2 mm14°moderate 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 · 17 km · fixed

itSaunatrailer · The Wee Beach, Marble Hill, Dunfanaghy · 18 km · fixed

Wild Atlantic Sea Sauna Dooey Beach · Dooey Beach, Lettermacaward · 28 km · fixed

Put Lough Altan 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 Altan dip · GrandFri, 2 Oct 16:30–17:30 · gentle breeze, dry
🌊 Lough Altan dip · GrandSat, 3 Oct 07:30–08:30 · gentle breeze, dry
🌊 Lough Altan dip · DecentSun, 4 Oct 07:30–08:30 · moderate breeze, showers possible

Nearby spots

Lough Feane

1 km · Co. Donegal · Not classified

Procklis Lough

2 km · Co. Donegal · Not classified

Lough Agannive

2 km · Co. Donegal · Not classified

Lough Muilt

3 km · Co. Donegal · Not classified

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