Letter Lough
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
81
Grand · moderate breeze, dry
Wind
22 km/h
Moderate breeze, W, gusts 41
Daylight
07:41
Sunrise. Sunset 19:13. Air 13°C.
Best dip each day
Daylight hours, preferring high tideToday
18:00
Grand 81/100
moderate breeze, dry · 22 km/h
☀ 07:41–19:13
Sat, 3 Oct
11:00
Grand 100/100
light winds, dry, sunny · 11 km/h
☀ 07:42–19:11
Sun, 4 Oct
19:00
Grand 84/100
moderate breeze, dry · 21 km/h
☀ 07:44–19:09
Mon, 5 Oct
08:00
Grand 94/100
gentle breeze, dry · 15 km/h
☀ 07:46–19:06
Tue, 6 Oct
13:00
Grand 100/100
light winds, dry · 12 km/h
☀ 07:48–19:04
Wed, 7 Oct
10:00
Grand 91/100
gentle breeze, dry · 13 km/h
☀ 07:50–19:01
Thu, 8 Oct
13:00
Grand 97/100
light winds, dry · 10 km/h
☀ 07:52–18:59
Week at a glance
Tap or drag to pick an hour. Everything below follows.Fri 18:0081 · Grand
Fri, 2 Oct, 18:00
81 Grand- moderate breeze
- dry
Waves
–
Wind
22 km/h W · gusts 41
Tide
–
Air
13°C · dry
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 | ||||||||||
| 18:00 | 81 Grand | – | – | – | 22 km/h W | 41 | – | dry | 13° | moderate breeze, dry |
| 19:00 | 81 Grand | – | – | – | 20 km/h W | 36 | – | dry | 11° | moderate breeze, dry |
| 20:00 | 91 Grand | – | – | – | 14 km/h W | 29 | – | dry | 11° | gentle breeze, dry, sunny |
| 21:00 | 92 Grand | – | – | – | 12 km/h W | 26 | – | dry | 9° | light winds, dry, sunny |
| 22:00 | 92 Grand | – | – | – | 9 km/h W | 23 | – | dry | 8° | light winds, dry |
| 23:00 | 92 Grand | – | – | – | 8 km/h WNW | 19 | – | dry | 6° | light winds, dry, sunny |
| Saturday, 3 October | ||||||||||
| 00:00 | 86 Grand | – | – | – | 7 km/h W | 17 | – | dry | 5° | light winds, dry |
| 01:00 | 86 Grand | – | – | – | 5 km/h W | 17 | – | dry | 5° | light winds, dry |
| 02:00 | 92 Grand | – | – | – | 8 km/h WNW | 17 | – | dry | 6° | light winds, dry |
| 03:00 | 92 Grand | – | – | – | 5 km/h NW | 18 | – | dry | 8° | light winds, dry |
| 04:00 | 92 Grand | – | – | – | 8 km/h W | 19 | – | dry | 9° | light winds, dry |
| 05:00 | 97 Grand | – | – | – | 12 km/h W | 19 | – | dry | 10° | light winds, dry |
| 06:00 | 92 Grand | – | – | – | 7 km/h NW | 18 | – | dry | 9° | light winds, dry, sunny |
| 07:00 | 92 Grand | – | – | – | 5 km/h WNW | 16 | – | dry | 7° | light winds, dry, sunny |
| 08:00 | 92 Grand | – | – | – | 1 km/h SSE | 14 | – | dry | 7° | light winds, dry |
| 09:00 | 92 Grand | – | – | – | 4 km/h SE | 13 | – | dry | 8° | light winds, dry, sunny |
| 10:00 | 97 Grand | – | – | – | 1 km/h SW | 15 | – | dry | 11° | light winds, dry, sunny |
| 11:00 | 100 Grand | – | – | – | 11 km/h WSW | 24 | – | dry | 14° | light winds, dry, sunny |
| 12:00 | 94 Grand | – | – | – | 13 km/h WSW | 27 | – | dry | 15° | gentle breeze, dry, sunny |
| 13:00 | 100 Grand | – | – | – | 12 km/h WSW | 28 | – | dry | 15° | light winds, dry |
| 14:00 | 94 Grand | – | – | – | 12 km/h WSW | 30 | – | dry | 15° | gentle breeze, dry |
| 15:00 | 94 Grand | – | – | – | 13 km/h SW | 31 | – | dry | 16° | gentle breeze, dry |
| 16:00 | 94 Grand | – | – | – | 16 km/h SW | 32 | – | dry | 15° | gentle breeze, dry |
| 17:00 | 94 Grand | – | – | – | 14 km/h SSW | 33 | – | dry | 15° | gentle breeze, dry |
| 18:00 | 94 Grand | – | – | – | 13 km/h SSW | 32 | – | dry | 14° | gentle breeze, dry |
| 19:00 | 97 Grand | – | – | – | 8 km/h SSW | 29 | – | dry | 12° | light winds, dry |
| 20:00 | 97 Grand | – | – | – | 9 km/h SSW | 26 | – | dry | 11° | light winds, dry |
| 21:00 | 97 Grand | – | – | – | 7 km/h S | 26 | – | dry | 11° | light winds, dry |
| 22:00 | 97 Grand | – | – | – | 7 km/h S | 28 | – | dry | 11° | light winds, dry |
| 23:00 | 97 Grand | – | – | – | 8 km/h S | 31 | – | dry | 11° | light winds, dry |
| Sunday, 4 October | ||||||||||
| 00:00 | 97 Grand | – | – | – | 8 km/h S | 33 | – | 0.1 mm | 12° | light winds, dry |
| 01:00 | 97 Grand | – | – | – | 6 km/h SSW | 36 | – | 0.1 mm | 13° | light winds, dry |
| 02:00 | 94 Grand | – | – | – | 14 km/h SW | 39 | – | 0.1 mm | 14° | gentle breeze, dry |
| 03:00 | 94 Grand | – | – | – | 18 km/h SW | 42 | – | 0.1 mm | 14° | gentle breeze, dry |
| 04:00 | 84 Grand | – | – | – | 21 km/h SW | 44 | – | 0.1 mm | 15° | moderate breeze, dry |
| 05:00 | 76 Decent | – | – | – | 20 km/h SSW | 44 | – | 0.2 mm | 15° | moderate breeze, showers possible |
| 06:00 | 76 Decent | – | – | – | 22 km/h SW | 44 | – | 0.2 mm | 15° | moderate breeze, showers possible |
| 07:00 | 76 Decent | – | – | – | 25 km/h SW | 44 | – | 0.3 mm | 15° | moderate breeze, showers possible |
| 08:00 | 76 Decent | – | – | – | 22 km/h SW | 45 | – | 0.2 mm | 15° | moderate breeze, showers possible |
| 09:00 | 76 Decent | – | – | – | 22 km/h SW | 45 | – | 0.3 mm | 15° | moderate breeze, showers possible |
| 10:00 | 76 Decent | – | – | – | 23 km/h SW | 45 | – | 0.3 mm | 15° | moderate breeze, showers possible |
| 11:00 | 76 Decent | – | – | – | 22 km/h SW | 44 | – | 0.2 mm | 16° | moderate breeze, showers possible |
| 12:00 | 76 Decent | – | – | – | 22 km/h SW | 45 | – | 0.2 mm | 16° | moderate breeze, showers possible |
| 13:00 | 76 Decent | – | – | – | 23 km/h SW | 46 | – | 0.2 mm | 15° | moderate breeze, showers possible |
| 14:00 | 76 Decent | – | – | – | 22 km/h SW | 43 | – | 0.2 mm | 16° | moderate breeze, showers possible |
| 15:00 | 76 Decent | – | – | – | 23 km/h SW | 43 | – | 0.2 mm | 16° | moderate breeze, showers possible |
| 16:00 | 70 Decent | – | – | – | 23 km/h SW | 40 | – | 0.7 mm | 16° | moderate breeze, rain |
| 17:00 | 72 Decent | – | – | – | 23 km/h SW | 41 | – | 0.4 mm | 16° | moderate breeze, rain |
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 Wild Atlantic Sauna (Slainte Saunas) · Old Head Beach, Louisburgh · 23 km · fixed
Big Dipper Sauna · Carrowniskey Beach, BigStyle Atlantic Lodge, Louisburgh · 35 km · fixed
Put Letter Lough 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🌊 Letter Lough dip · GrandFri, 2 Oct 17:30–18:30 · moderate breeze, dry
🌊 Letter Lough dip · GrandSat, 3 Oct 10:30–11:30 · light winds, dry, sunny
🌊 Letter Lough dip · GrandSun, 4 Oct 18:30–19:30 · moderate breeze, dry
Nearby spots
Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.