Rathbeale Reservoir
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
94
Grand · gentle breeze, dry
Wind
17 km/h
Gentle breeze, SSW, gusts 23
Daylight
07:27
Sunrise. Sunset 19:01. Air 13°C.
Best dip each day
Daylight hoursToday
07:00
Grand 100/100
light winds, dry · 11 km/h
☀ 07:27–19:01
Sat, 3 Oct
12:00
Grand 100/100
light winds, dry, sunny · 8 km/h
☀ 07:29–18:58
Sun, 4 Oct
08:00
Grand 94/100
gentle breeze, dry · 18 km/h
☀ 07:31–18:56
Mon, 5 Oct
19:00
Grand 100/100
light winds, dry · 9 km/h
☀ 07:33–18:53
Tue, 6 Oct
19:00
Grand 91/100
gentle breeze, dry · 13 km/h
☀ 07:34–18:51
Wed, 7 Oct
10:00
Grand 92/100
light winds, dry · 11 km/h
☀ 07:36–18:49
Thu, 8 Oct
13:00
Grand 91/100
gentle breeze, dry · 14 km/h
☀ 07:38–18:46
Week at a glance
Tap or drag to pick an hour. Everything below follows.Fri 06:0094 · Grand
Fri, 2 Oct, 06:00
94 Grand- gentle breeze
- dry
Waves
–
Wind
17 km/h SSW · gusts 23
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 | ||||||||||
| 06:00 | 94 Grand | – | – | – | 17 km/h SSW | 23 | – | dry | 13° | gentle breeze, dry |
| 07:00 | 100 Grand | – | – | – | 11 km/h SSW | 21 | – | dry | 13° | light winds, dry |
| 08:00 | 94 Grand | – | – | – | 15 km/h SSW | 22 | – | dry | 14° | gentle breeze, dry |
| 09:00 | 94 Grand | – | – | – | 17 km/h SSW | 26 | – | dry | 15° | gentle breeze, dry |
| 10:00 | 84 Grand | – | – | – | 22 km/h SSW | 36 | – | dry | 16° | moderate breeze, dry |
| 11:00 | 84 Grand | – | – | – | 24 km/h SSW | 42 | – | dry | 17° | moderate breeze, dry |
| 12:00 | 84 Grand | – | – | – | 27 km/h SSW | 46 | – | dry | 18° | moderate breeze, dry |
| 13:00 | 84 Grand | – | – | – | 28 km/h SSW | 49 | – | dry | 18° | moderate breeze, dry, warm air |
| 14:00 | 68 Decent | – | – | – | 31 km/h SSW | 51 | – | 0.1 mm | 19° | fresh breeze, dry, warm air |
| 15:00 | 60 Fresh | – | – | – | 30 km/h SSW | 53 | – | 0.2 mm | 17° | fresh breeze, showers possible |
| 16:00 | 71 Decent | – | – | – | 24 km/h SSW | 51 | – | 0.5 mm | 17° | moderate breeze, rain |
| 17:00 | 54 Fresh | – | – | – | 30 km/h SSW | 49 | – | 0.6 mm | 16° | fresh breeze, rain |
| 18:00 | 86 Grand | – | – | – | 12 km/h SW | 44 | – | 0.4 mm | 15° | gentle breeze, showers possible |
| 19:00 | 86 Grand | – | – | – | 18 km/h WSW | 33 | – | 0.3 mm | 14° | gentle breeze, showers possible |
| 20:00 | 91 Grand | – | – | – | 16 km/h WSW | 27 | – | dry | 13° | gentle breeze, dry |
| 21:00 | 91 Grand | – | – | – | 18 km/h WSW | 26 | – | dry | 13° | gentle breeze, dry |
| 22:00 | 91 Grand | – | – | – | 15 km/h WSW | 27 | – | dry | 12° | gentle breeze, dry, sunny |
| 23:00 | 91 Grand | – | – | – | 15 km/h WSW | 27 | – | dry | 11° | gentle breeze, dry, sunny |
| Saturday, 3 October | ||||||||||
| 00:00 | 86 Grand | – | – | – | 17 km/h WSW | 25 | – | dry | 9° | gentle breeze, dry |
| 01:00 | 86 Grand | – | – | – | 17 km/h W | 22 | – | dry | 9° | gentle breeze, dry |
| 02:00 | 86 Grand | – | – | – | 16 km/h W | 20 | – | dry | 8° | gentle breeze, dry |
| 03:00 | 92 Grand | – | – | – | 10 km/h WSW | 17 | – | dry | 7° | light winds, dry |
| 04:00 | 92 Grand | – | – | – | 10 km/h WSW | 15 | – | dry | 7° | light winds, dry |
| 05:00 | 92 Grand | – | – | – | 10 km/h SW | 13 | – | dry | 7° | light winds, dry |
| 06:00 | 92 Grand | – | – | – | 10 km/h WSW | 12 | – | dry | 8° | light winds, dry |
| 07:00 | 92 Grand | – | – | – | 11 km/h WSW | 13 | – | dry | 8° | light winds, dry |
| 08:00 | 92 Grand | – | – | – | 10 km/h SW | 13 | – | dry | 8° | light winds, dry |
| 09:00 | 92 Grand | – | – | – | 9 km/h WSW | 14 | – | dry | 9° | light winds, dry |
| 10:00 | 97 Grand | – | – | – | 9 km/h WSW | 15 | – | dry | 11° | light winds, dry, sunny |
| 11:00 | 97 Grand | – | – | – | 9 km/h WSW | 15 | – | dry | 13° | light winds, dry, sunny |
| 12:00 | 100 Grand | – | – | – | 8 km/h WSW | 17 | – | dry | 14° | light winds, dry, sunny |
| 13:00 | 100 Grand | – | – | – | 8 km/h SW | 19 | – | dry | 15° | light winds, dry |
| 14:00 | 100 Grand | – | – | – | 9 km/h SW | 20 | – | dry | 15° | light winds, dry |
| 15:00 | 100 Grand | – | – | – | 10 km/h S | 21 | – | dry | 15° | light winds, dry |
| 16:00 | 100 Grand | – | – | – | 12 km/h SSE | 22 | – | dry | 15° | light winds, dry, sunny |
| 17:00 | 100 Grand | – | – | – | 8 km/h SSE | 21 | – | dry | 15° | light winds, dry |
| 18:00 | 100 Grand | – | – | – | 9 km/h SW | 19 | – | dry | 15° | light winds, dry |
| 19:00 | 100 Grand | – | – | – | 9 km/h SSW | 16 | – | dry | 13° | light winds, dry |
| 20:00 | 97 Grand | – | – | – | 10 km/h SSW | 14 | – | dry | 12° | light winds, dry |
| 21:00 | 97 Grand | – | – | – | 8 km/h SSW | 14 | – | dry | 11° | light winds, dry |
| 22:00 | 97 Grand | – | – | – | 6 km/h SSW | 15 | – | dry | 10° | light winds, dry |
| 23:00 | 92 Grand | – | – | – | 6 km/h SW | 16 | – | dry | 10° | light winds, dry, sunny |
| Sunday, 4 October | ||||||||||
| 00:00 | 91 Grand | – | – | – | 13 km/h SW | 18 | – | dry | 11° | gentle breeze, dry, sunny |
| 01:00 | 91 Grand | – | – | – | 15 km/h SW | 21 | – | dry | 12° | gentle breeze, dry |
| 02:00 | 97 Grand | – | – | – | 12 km/h SSW | 30 | – | dry | 11° | light winds, dry |
| 03:00 | 91 Grand | – | – | – | 12 km/h SSW | 31 | – | dry | 12° | gentle breeze, dry |
| 04:00 | 91 Grand | – | – | – | 14 km/h SW | 32 | – | dry | 13° | gentle breeze, dry |
| 05:00 | 94 Grand | – | – | – | 16 km/h SW | 32 | – | dry | 13° | gentle 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?
Restore Sauna Portmarnock · White Sands Hotel, Coast Road, Portmarnock · 9 km · fixed
Mercury Sauna · Portmarnock Beach north car park · 10 km · fixed
The Sea Sauna · Tower Bay Beach, Portrane · 10 km · fixed
Fad Saoil Saunas (Clontarf) · Clontarf seafront · 12 km · fixed
Put Rathbeale Reservoir 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🌊 Rathbeale Reservoir dip · GrandFri, 2 Oct 06:30–07:30 · light winds, dry
🌊 Rathbeale Reservoir dip · GrandSat, 3 Oct 11:30–12:30 · light winds, dry, sunny
🌊 Rathbeale Reservoir dip · GrandSun, 4 Oct 07:30–08:30 · gentle breeze, dry
Nearby spots
Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Lake data: © OpenStreetMap contributors.