Dipper › Co. Dublin

Half Moon

Excellent Quality 2025 faces E

Any tidePrefer highPrefer low
Surf score now
38
Blowy · waist-high 0.7 m, cross-shore wind
Waves
0.7 m
8 s period from SE · model cell 1.8 km out
Sea
15.2°
Grand. M2 buoy, Irish Sea east of Dublin, 51 km away.
Tide
3.7 m
High tide. Low at 21:50.
Wind
28 km/h
Moderate breeze, SSW, cross, gusts 48
Daylight
07:27
Sunrise. Sunset 19:00. Air 17°C.

Best surf each day

Daylight hours, preferring high tide
Today
19:00
Fresh 48/100
waist-high 0.7 m, offshore wind, low-ish tide · 0.7 m · 25 km/h
▲ 03:40 ▼ 09:15 ▲ 16:10 ▼ 21:50
Sat, 3 Oct
07:00
Grim 5/100
flat · 0.2 m · 10 km/h
▲ 04:45 ▼ 10:15 ▲ 17:15 ▼ 23:10
Sun, 4 Oct
08:00
Grim 5/100
flat · 0.1 m · 12 km/h
▲ 06:10 ▼ 11:45 ▲ 18:40
Mon, 5 Oct
08:00
Grim 5/100
flat · 0.2 m · 14 km/h
▼ 00:45 ▲ 07:45 ▼ 13:15 ▲ 20:00
Tue, 6 Oct
10:00
Grim 5/100
flat · 0.1 m · 12 km/h
▼ 02:10 ▲ 09:00 ▼ 14:30 ▲ 21:10
Wed, 7 Oct
10:00
Grim 5/100
flat · 0.1 m · 12 km/h
▼ 03:15 ▲ 10:00 ▼ 15:40 ▲ 22:05
Thu, 8 Oct
13:00
Grim 0/100
no wave data here · 15 km/h
▼ 04:05 ▲ 10:50 ▼ 16:20 ▲ 22:55

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 17:0037 · Blowywaist-high 0.7 m · cross-shore wind
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 15:00 · 37 BlowyFri 16:00 · 40 BlowyFri 17:00 · 37 BlowyFri 18:00 · 17 GrimFri 19:00 · 48 FreshFri 20:00 · 44 Blowy · nightFri 21:00 · 16 Grim · nightFri 22:00 · 13 Grim · nightFri 23:00 · 16 Grim · nightSat 00:00 · 19 Grim · nightSat 01:00 · 22 Grim · nightSat 02:00 · 25 Grim · nightSat 03:00 · 5 Grim · nightSat 04:00 · 5 Grim · nightSat 05:00 · 5 Grim · nightSat 06:00 · 5 Grim · nightSat 07:00 · 5 GrimSat 08:00 · 5 GrimSat 09:00 · 5 GrimSat 10:00 · 5 GrimSat 11:00 · 5 GrimSat 12:00 · 5 GrimSat 13:00 · 5 GrimSat 14:00 · 5 GrimSat 15:00 · 5 GrimSat 16:00 · 5 GrimSat 17:00 · 5 GrimSat 18:00 · 5 GrimSat 19:00 · 5 GrimSat 20:00 · 5 Grim · nightSat 21:00 · 5 Grim · nightSat 22:00 · 5 Grim · nightSat 23:00 · 5 Grim · nightSun 00:00 · 5 Grim · nightSun 01:00 · 5 Grim · nightSun 02:00 · 5 Grim · nightSun 03:00 · 5 Grim · nightSun 04:00 · 5 Grim · nightSun 05:00 · 5 Grim · nightSun 06:00 · 5 Grim · nightSun 07:00 · 5 Grim · nightSun 08:00 · 5 GrimSun 09:00 · 5 GrimSun 10:00 · 5 GrimSun 11:00 · 5 GrimSun 12:00 · 5 GrimSun 13:00 · 5 GrimSun 14:00 · 5 GrimSun 15:00 · 5 GrimSun 16:00 · 5 GrimSun 17:00 · 5 GrimSun 18:00 · 5 GrimSun 19:00 · 5 GrimSun 20:00 · 5 Grim · nightSun 21:00 · 5 Grim · nightSun 22:00 · 5 Grim · nightSun 23:00 · 5 Grim · nightMon 00:00 · 5 Grim · nightMon 01:00 · 5 Grim · nightMon 02:00 · 5 Grim · nightMon 03:00 · 5 Grim · nightMon 04:00 · 5 Grim · nightMon 05:00 · 5 Grim · nightMon 06:00 · 5 Grim · nightMon 07:00 · 5 Grim · nightMon 08:00 · 5 GrimMon 09:00 · 5 GrimMon 10:00 · 5 GrimMon 11:00 · 5 GrimMon 12:00 · 5 GrimMon 13:00 · 5 GrimMon 14:00 · 5 GrimMon 15:00 · 5 GrimMon 16:00 · 5 GrimMon 17:00 · 5 GrimMon 18:00 · 5 GrimMon 19:00 · 5 GrimMon 22:00 · 5 Grim · nightTue 01:00 · 5 Grim · nightTue 04:00 · 5 Grim · nightTue 07:00 · 5 Grim · nightTue 10:00 · 5 GrimTue 13:00 · 5 GrimTue 16:00 · 5 GrimTue 19:00 · 5 GrimTue 22:00 · 5 Grim · nightWed 01:00 · 5 Grim · nightWed 04:00 · 5 Grim · nightWed 07:00 · 5 Grim · nightWed 10:00 · 5 GrimWed 13:00 · 5 GrimWed 16:00 · 5 GrimWed 19:00 · 5 GrimWed 22:00 · 5 Grim · nightThu 01:00 · 5 Grim · nightThu 07:00 · 0 Grim · nightThu 13:00 · 0 GrimThu 19:00 · 0 Grim

Fri, 2 Oct, 17:00

37 Blowy
  • waist-high 0.7 m
  • cross-shore wind
  • high-ish tide
  • cross wind
NESWsunrisesunset0.7 m28 km/h
faces 100° E · wind cross
Waves
0.7 m @ 8 s from SE
Wind
28 km/h SSW · gusts 48
Tide
3.7 m · high
Air
17°C · 0.4 mm rain

Meteogram

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

Hour by hour

Next 48 hours
TimeSurfWavesPeriodFromWindGustTideRainAirWhy
Today
16:0040 Blowy0.7 m7 sSE29 km/h SSW503.8 m ▲0.1 mm17°waist-high 0.7 m, cross-shore wind, high-ish tide
17:0037 Blowy0.7 m8 sSE28 km/h SSW483.7 m ▲0.4 mm17°waist-high 0.7 m, cross-shore wind, high-ish tide
18:0017 Grim0.7 m8 sSE38 km/h SW463.3 m 1.1 mm17°waist-high 0.7 m, cross-shore wind, high-ish tide
19:0048 Fresh0.7 m8 sSE25 km/h WSW402.6 m 0.9 mm17°waist-high 0.7 m, offshore wind, low-ish tide
20:0044 Blowy0.6 m7 sSE27 km/h WSW371.9 m dry16°waist-high 0.6 m, offshore wind, low-ish tide
21:0016 Grim0.6 m7 sSE26 km/h W381.3 m ▼dry15°knee-high 0.6 m, offshore wind, low-ish tide
22:0013 Grim0.5 m7 sSE26 km/h W361.1 m ▼dry14°knee-high 0.5 m, offshore wind, low-ish tide
23:0016 Grim0.5 m7 sSE22 km/h W351.3 m ▼dry13°knee-high 0.5 m, offshore wind, low-ish tide
Saturday, 3 October
00:0019 Grim0.4 m7 sSE23 km/h W341.7 m dry12°knee-high 0.4 m, offshore wind, low-ish tide
01:0022 Grim0.3 m7 sSE28 km/h W342.3 m dry12°knee-high 0.4 m, offshore wind, low-ish tide
02:0025 Grim0.3 m7 sSE23 km/h W322.8 m dry11°knee-high 0.3 m, offshore wind, high-ish tide
03:005 Grim0.3 m7 sSE10 km/h W263.2 m dry10°flat
04:005 Grim0.2 m7 sSE9 km/h W203.5 m ▲dry10°flat
05:005 Grim0.2 m5 sSE11 km/h W183.6 m ▲dry10°flat
06:005 Grim0.2 m5 sSE9 km/h WSW173.5 m dry10°flat
07:005 Grim0.2 m5 sSE10 km/h WSW163.0 m dry11°flat
08:005 Grim0.2 m4 sSE9 km/h W162.3 m dry11°flat
09:005 Grim0.1 m4 sSE9 km/h WSW161.8 m dry12°flat
10:005 Grim0.1 m4 sSE9 km/h WSW181.4 m ▼dry13°flat
11:005 Grim0.1 m4 sSE10 km/h W191.4 m ▼dry14°flat
12:005 Grim0.1 m4 sSE10 km/h W201.7 m dry14°flat
13:005 Grim0.1 m4 sSE10 km/h WSW192.2 m dry15°flat
14:005 Grim0.1 m4 sSE9 km/h WSW192.7 m dry15°flat
15:005 Grim0.1 m4 sSE9 km/h SW213.1 m dry16°flat
16:005 Grim0.1 m4 sSE19 km/h SE223.4 m ▲dry15°flat
17:005 Grim0.1 m3 sSE19 km/h SSE233.6 m ▲dry15°flat
18:005 Grim0.1 m3 sSE18 km/h SSE213.6 m ▲dry15°flat
19:005 Grim0.1 m3 sSE12 km/h S183.3 m dry15°flat
20:005 Grim0.1 m3 sSE10 km/h SSE152.7 m dry15°flat
21:005 Grim0.1 m3 sSE10 km/h S172.1 m dry14°flat
22:005 Grim0.1 m3 sSE6 km/h SW181.6 m dry13°flat
23:005 Grim0.1 m3 sSE10 km/h WSW181.3 m ▼dry13°flat
Sunday, 4 October
00:005 Grim0.1 m3 sSE14 km/h W191.3 m ▼dry13°flat
01:005 Grim0.1 m3 sSE8 km/h WSW191.6 m dry13°flat
02:005 Grim0.1 m3 sSE6 km/h SW192.1 m dry13°flat
03:005 Grim0.1 m3 sSE6 km/h SE212.5 m dry13°flat
04:005 Grim0.1 m3 sSE5 km/h S222.9 m dry13°flat
05:005 Grim0.1 m3 sSE10 km/h SSE243.3 m ▲dry13°flat
06:005 Grim0.1 m3 sSE9 km/h SSE263.5 m ▲dry13°flat
07:005 Grim0.1 m3 sSE10 km/h SSE273.4 m ▲dry13°flat
08:005 Grim0.1 m3 sSE12 km/h SSE293.1 m dry14°flat
09:005 Grim0.2 m4 sSE6 km/h S312.6 m dry15°flat
10:005 Grim0.2 m4 sSE12 km/h WSW342.1 m dry16°flat
11:005 Grim0.2 m4 sSE14 km/h SW351.7 m ▼dry16°flat
12:005 Grim0.1 m4 sSE9 km/h SSW361.6 m ▼dry17°flat
13:005 Grim0.1 m4 sSE10 km/h SSE371.8 m ▼dry17°flat
14:005 Grim0.1 m4 sSE12 km/h SW352.1 m dry18°flat
15:005 Grim0.1 m4 sSE15 km/h WSW352.5 m dry18°flat

Where the energy comes from

Wave energy (H²·T) this week by direction, against the swell window

Swell arriving between NNE and SSE reaches this spot; anything else is blocked by land and counts for much less.

Tide today

Dublin Port, 4 km away · metres above chart datum
03:4009:1516:1021:50
High 03:40 · 3.9 mLow 09:15 · 1.1 mHigh 16:10 · 3.8 mLow 21:50 · 1.1 m

The spot

Faces
100° E
Swell window
NNE 20° → SSE 160°
Exposure
Bay · model cell 1.8 km out
Water
Excellent Quality

Facing and swell window are derived from the wave model's coastline around the spot, not surveyed. Know better? Tell us.

Water quality

Recent grades: 2024 Excellent. The EPA flags a short-term pollution risk here after heavy rain.

Beach profile (PDF) · beaches.ie

On the ground

No lifeguard listedNo toiletsParkingDogs on lead (Yes)

As listed by Dublin City Council. Open in Maps.

Sauna after?

Fad Saoil Saunas (Clontarf) · Clontarf seafront · 4 km · fixed

Fad Saoil Saunas (Blackrock) · Blackrock seafront · 4 km · fixed

Helios Sauna (Dun Laoghaire Floating Sauna) · Coal Harbour, Dun Laoghaire Harbour · 5 km · fixed

Saunos Sandycove · 49 Sandycove Road, Sandycove · 7 km · fixed

The Half Moon Bathing Water is located approximately half way along the Southside of Great South Wall. It is not a beach and access to the bathing water is via ladder or slipway from the Great South Wall. Access for pedestrians along the Great South Wall is permitted solely by foot or bicycle. Vehicle access (except for emergency vehicles) is limited at the beginning of the wall, where bicycle parking and car parking facilities are located. For additional parking, it is encouraged to use the nearby Shelley Banks car and bicycle parking facilities and refrain from parking along the roadway to prevent disturbance/damage to sand dunes. The bathing area is bounded by the Great South Wall to the North and the Irish Sea to the South thus flora and fauna have limited opportunity to grow. However, due to its position and coastal connection to Sean Moore Park and the Irishtown Nature Reserve, it is of international importance for migrating Light-bellied Brent Geese and of national importance for nine other waterfowl species. The Half Moon bathing location is located within the South Dublin Bay and River Tolka Estuary Special Protection Area (SPA), the South Dublin Bay Proposed Natural Heritage Areas and South Dublin Bay Special Area of Conservation (SAC). It is encouraged to check wind, weather and tidal forecasts before swimming. During times of adverse weather, Dublin Port Company (<a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.dublinport.ie%2Fpublic-notices%2F&amp;data=05%7C02%7C%7C87832797e7f04f86bcdc08dc297b7a20%7C03f164957710409d90cb9b3f403feeea%7C0%7C0%7C638430857721299040%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&amp;sdata=fNDpL7pcYw1LNii2yyrtaB0RYeXkdcLg8gfwjz3cxIQ%3D&amp;reserved=0">https://www.dublinport.ie/public-notices/</a>) and Dublin City Council will issue a public safety notice for the temporary closure of the Great South Wall.

Put Half Moon 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
🏄 Half Moon surf · Fresh · sea 15° · 0.7 mFri, 2 Oct 18:30–19:30 · waist-high 0.7 m, offshore wind, low-ish tide
🏄 Half Moon surf · Grim · sea 15° · 0.2 mSat, 3 Oct 06:30–07:30 · flat
🏄 Half Moon surf · Grim · sea 15° · 0.1 mSun, 4 Oct 07:30–08:30 · flat

Nearby spots

Score is Dipper's own blend. It rates comfort, not safety. Forecast: Met Éireann. Waves: Marine Institute Irish Shelf wave model.