Dipper › Co. Dublin

Half Moon

Excellent Quality 2025 faces E

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Dip score now
88
Grand · gentle breeze, dry
Waves
0.4 m
5 s period from SE · model cell 1.8 km out
Sea
15.1°
Grand. M2 buoy, Irish Sea east of Dublin, 51 km away.
Tide
1.1 m
Low tide. Low at 09:15.
Wind
13 km/h
Gentle breeze, S, cross, gusts 28
Daylight
07:27
Sunrise. Sunset 19:00. Air 16°C.

Best dip each day

Daylight hours
Today
09:00
Grand 88/100
gentle breeze, dry, small waves 0.4 m · 0.4 m · 13 km/h
▲ 03:40 ▼ 09:15 ▲ 16:10 ▼ 21:50
Sat, 3 Oct
11:00
Grand 100/100
light winds, dry, calm sea · 0.1 m · 10 km/h
▲ 04:45 ▼ 10:15 ▲ 17:15 ▼ 23:10
Sun, 4 Oct
16:00
Grand 100/100
light winds, dry, calm sea · 0.2 m · 12 km/h
▲ 06:10 ▼ 11:45 ▲ 18:40
Mon, 5 Oct
19:00
Grand 100/100
light winds, dry, calm sea · 0.2 m · 12 km/h
▼ 00:45 ▲ 07:45 ▼ 13:15 ▲ 20:00
Tue, 6 Oct
16:00
Grand 100/100
light winds, dry, calm sea · 0.2 m · 11 km/h
▼ 02:10 ▲ 09:00 ▼ 14:30 ▲ 21:10
Wed, 7 Oct
13:00
Grand 94/100
gentle breeze, dry · 15 km/h
▼ 03:15 ▲ 10:00 ▼ 15:40 ▲ 22:05
Thu, 8 Oct
19:00
Grand 97/100
light winds, dry · 10 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 09:0088 · Grandgentle breeze · dry
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 08:00 · 88 GrandFri 09:00 · 88 GrandFri 10:00 · 88 GrandFri 11:00 · 78 DecentFri 12:00 · 78 DecentFri 13:00 · 78 DecentFri 14:00 · 78 DecentFri 15:00 · 70 DecentFri 16:00 · 66 DecentFri 17:00 · 65 DecentFri 18:00 · 54 FreshFri 19:00 · 60 FreshFri 20:00 · 68 Decent · nightFri 21:00 · 68 Decent · nightFri 22:00 · 84 Grand · nightFri 23:00 · 81 Grand · nightSat 00:00 · 87 Grand · nightSat 01:00 · 71 Decent · nightSat 02:00 · 87 Grand · nightSat 03:00 · 91 Grand · nightSat 04:00 · 97 Grand · nightSat 05:00 · 97 Grand · nightSat 06:00 · 97 Grand · nightSat 07:00 · 97 GrandSat 08:00 · 97 GrandSat 09:00 · 97 GrandSat 10:00 · 97 GrandSat 11:00 · 100 GrandSat 12:00 · 100 GrandSat 13:00 · 100 GrandSat 14:00 · 94 GrandSat 15:00 · 78 DecentSat 16:00 · 78 DecentSat 17:00 · 94 GrandSat 18:00 · 94 GrandSat 19:00 · 100 GrandSat 20:00 · 94 Grand · nightSat 21:00 · 100 Grand · nightSat 22:00 · 100 Grand · nightSat 23:00 · 100 Grand · nightSun 00:00 · 100 Grand · nightSun 01:00 · 100 Grand · nightSun 02:00 · 100 Grand · nightSun 03:00 · 100 Grand · nightSun 04:00 · 100 Grand · nightSun 05:00 · 100 Grand · nightSun 06:00 · 100 Grand · nightSun 07:00 · 100 Grand · nightSun 08:00 · 94 GrandSun 09:00 · 94 GrandSun 10:00 · 94 GrandSun 11:00 · 94 GrandSun 12:00 · 94 GrandSun 13:00 · 94 GrandSun 14:00 · 94 GrandSun 15:00 · 94 GrandSun 16:00 · 100 GrandSun 17:00 · 100 GrandSun 18:00 · 94 GrandSun 19:00 · 94 GrandSun 20:00 · 94 Grand · nightSun 21:00 · 94 Grand · nightSun 22:00 · 94 Grand · nightSun 23:00 · 94 Grand · nightMon 00:00 · 94 Grand · nightMon 01:00 · 94 Grand · nightMon 02:00 · 94 Grand · nightMon 03:00 · 94 Grand · nightMon 04:00 · 94 Grand · nightMon 05:00 · 94 Grand · nightMon 06:00 · 94 Grand · nightMon 07:00 · 94 Grand · nightMon 10:00 · 90 GrandMon 13:00 · 94 GrandMon 16:00 · 94 GrandMon 19:00 · 100 GrandMon 22:00 · 100 Grand · nightTue 01:00 · 100 Grand · nightTue 04:00 · 100 Grand · nightTue 07:00 · 100 Grand · nightTue 10:00 · 92 GrandTue 13:00 · 86 GrandTue 16:00 · 100 GrandTue 19:00 · 94 GrandTue 22:00 · 91 Grand · nightWed 01:00 · 91 Grand · nightWed 04:00 · 86 Grand · nightWed 07:00 · 86 Grand · nightWed 10:00 · 91 GrandWed 13:00 · 94 GrandWed 19:00 · 91 GrandThu 01:00 · 86 Grand · nightThu 07:00 · 86 Grand · nightThu 13:00 · 91 GrandThu 19:00 · 97 Grand

Fri, 2 Oct, 09:00

88 Grand
  • gentle breeze
  • dry
  • small waves 0.4 m
  • low tide
  • cross wind
NESWsunrisesunset0.4 m13 km/h
faces 100° E · wind cross
Waves
0.4 m @ 5 s from SE
Wind
13 km/h S · gusts 28
Tide
1.1 m · low
Air
16°C · dry

Meteogram

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

Hour by hour

Next 48 hours
TimeDipWavesPeriodFromWindGustTideRainAirWhy
Today
09:0088 Grand0.4 m5 sSE13 km/h S281.1 m ▼dry16°gentle breeze, dry, small waves 0.4 m
10:0088 Grand0.4 m5 sSE19 km/h SSW361.1 m ▼dry17°gentle breeze, dry, small waves 0.4 m
11:0078 Decent0.5 m5 sSE21 km/h SSW401.6 m dry17°moderate breeze, dry, small waves 0.5 m
12:0078 Decent0.5 m5 sSE25 km/h SSW442.2 m dry18°moderate breeze, dry, small waves 0.5 m
13:0078 Decent0.5 m6 sSE26 km/h S472.8 m dry17°moderate breeze, dry, small waves 0.5 m
14:0078 Decent0.6 m7 sSE28 km/h SSW493.2 m 0.1 mm17°moderate breeze, dry, small waves 0.6 m
15:0070 Decent0.7 m8 sSE26 km/h SSW483.6 m ▲0.2 mm17°moderate breeze, showers possible, small waves 0.7 m
16:0066 Decent0.7 m8 sSE25 km/h S473.8 m ▲0.4 mm17°moderate breeze, rain, small waves 0.7 m
17:0065 Decent0.7 m8 sSE26 km/h S473.7 m ▲0.5 mm17°moderate breeze, rain, small waves 0.7 m
18:0054 Fresh0.7 m8 sSE35 km/h SW453.3 m 0.7 mm17°fresh breeze, showers possible, small waves 0.7 m
19:0060 Fresh0.7 m8 sSE37 km/h WSW392.6 m 0.4 mm17°fresh breeze, offshore, flatter inshore, showers possible
20:0068 Decent0.6 m8 sSE31 km/h W351.9 m dry15°fresh breeze, offshore, flatter inshore, dry
21:0068 Decent0.5 m8 sSE29 km/h W361.3 m ▼dry14°fresh breeze, offshore, flatter inshore, dry
22:0084 Grand0.5 m8 sSE24 km/h W361.1 m ▼dry14°moderate breeze, offshore, flatter inshore, dry
23:0081 Grand0.4 m8 sSE26 km/h W351.3 m ▼dry13°moderate breeze, offshore, flatter inshore, dry
Saturday, 3 October
00:0087 Grand0.4 m8 sSE24 km/h W331.7 m dry12°moderate breeze, offshore, flatter inshore, dry
01:0071 Decent0.3 m6 sSE31 km/h W332.3 m dry11°fresh breeze, offshore, flatter inshore, dry
02:0087 Grand0.3 m6 sSE27 km/h W312.8 m dry11°moderate breeze, offshore, flatter inshore, dry
03:0091 Grand0.3 m6 sSE19 km/h W253.2 m dry11°gentle breeze, dry, calm sea
04:0097 Grand0.3 m5 sSE11 km/h W193.5 m ▲dry11°light winds, dry, calm sea
05:0097 Grand0.2 m5 sSE8 km/h WSW173.6 m ▲dry11°light winds, dry, calm sea
06:0097 Grand0.2 m5 sSE7 km/h WSW173.5 m dry11°light winds, dry, calm sea
07:0097 Grand0.2 m5 sSE10 km/h W173.0 m dry11°light winds, dry, calm sea
08:0097 Grand0.2 m4 sSE10 km/h WSW172.3 m dry12°light winds, dry, calm sea
09:0097 Grand0.2 m4 sSE9 km/h WSW171.8 m dry12°light winds, dry, calm sea
10:0097 Grand0.1 m4 sSE9 km/h W161.4 m ▼dry13°light winds, dry, calm sea
11:00100 Grand0.1 m4 sSE10 km/h W161.4 m ▼dry14°light winds, dry, calm sea
12:00100 Grand0.1 m4 sSE10 km/h W161.7 m dry14°light winds, dry, calm sea
13:00100 Grand0.1 m4 sSE8 km/h SW182.2 m dry15°light winds, dry, calm sea
14:0094 Grand0.1 m4 sSE12 km/h SE202.7 m dry15°gentle breeze, dry, calm sea
15:0078 Decent0.1 m4 sSE23 km/h SE243.1 m dry15°moderate breeze, onshore, choppy, dry
16:0078 Decent0.1 m4 sSE20 km/h SSE253.4 m ▲dry15°moderate breeze, onshore, choppy, dry
17:0094 Grand0.1 m3 sSE13 km/h WSW253.6 m ▲dry17°gentle breeze, dry, calm sea
18:0094 Grand0.1 m3 sSE15 km/h WSW243.6 m ▲dry16°gentle breeze, dry, calm sea
19:00100 Grand0.1 m3 sSE8 km/h SW213.3 m dry16°light winds, dry, calm sea
20:0094 Grand0.1 m3 sSE12 km/h S202.7 m dry15°gentle breeze, dry, calm sea
21:00100 Grand0.1 m3 sSE10 km/h S202.1 m dry14°light winds, dry, calm sea
22:00100 Grand0.1 m3 sSE7 km/h WSW191.6 m dry14°light winds, dry, calm sea
23:00100 Grand0.1 m3 sSE10 km/h W191.3 m ▼dry14°light winds, dry, calm sea
Sunday, 4 October
00:00100 Grand0.1 m3 sSE9 km/h WSW201.3 m ▼dry14°light winds, dry, calm sea
01:00100 Grand0.1 m3 sSE5 km/h S221.6 m dry14°light winds, dry, calm sea
02:00100 Grand0.1 m3 sSE7 km/h SSE232.1 m dry14°light winds, dry, calm sea
03:00100 Grand0.2 m4 sSE10 km/h SSE252.5 m dry14°light winds, dry, calm sea
04:00100 Grand0.2 m4 sSE5 km/h SSE272.9 m dry14°light winds, dry, calm sea
05:00100 Grand0.2 m4 sSE12 km/h SW303.3 m ▲dry14°light winds, dry, calm sea
06:00100 Grand0.2 m4 sSE11 km/h SW323.5 m ▲dry15°light winds, dry, calm sea
07:00100 Grand0.2 m4 sSE10 km/h SW333.4 m ▲dry15°light winds, dry, calm sea
08:0094 Grand0.2 m4 sSE13 km/h SW323.1 m dry15°gentle breeze, dry, calm sea

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 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
🌊 Half Moon dip · Grand · sea 15° · 0.4 mFri, 2 Oct 08:30–09:30 · gentle breeze, dry, small waves 0.4 m
🌊 Half Moon dip · Grand · sea 15° · 0.1 mSat, 3 Oct 10:30–11:30 · light winds, dry, calm sea
🌊 Half Moon dip · Grand · sea 15° · 0.2 mSun, 4 Oct 15:30–16:30 · light winds, dry, calm sea

Nearby spots

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