Dipper › Co. Mayo

Keem Beach, Achill Island

Excellent Quality 2025 Blue Flag faces WSW

🌊 Dip🏄 Surf
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Dip score now
35
Blowy · moderate breeze, onshore, choppy
Waves
1.6 m
11 s period from WSW · model cell 1.3 km out
Sea
15.4°
Grand. M3 buoy, south-west of Mizen Head, 307 km away.
Tide
3.6 m
High tide. Low at 04:30.
Wind
21 km/h
Moderate breeze, W, onshore, gusts 39
Daylight
07:43
Sunrise. Sunset 19:16. Air 9°C.

Best dip each day

Daylight hours
Today
Daylight's done for today.
▼ 03:35 ▲ 09:45 ▼ 16:05 ▲ 22:30
Sat, 3 Oct
09:00
Decent 73/100
gentle breeze, dry, waves 1.4 m · 1.4 m · 16 km/h
▼ 04:30 ▲ 10:55 ▼ 17:25 ▲ 23:40
Sun, 4 Oct
18:00
Fresh 57/100
moderate breeze, onshore, choppy, dry · 1.4 m · 28 km/h
▼ 05:40 ▲ 12:10 ▼ 18:50
Mon, 5 Oct
10:00
Blowy 41/100
fresh breeze, onshore, choppy, dry · 1.5 m · 31 km/h
▲ 01:15 ▼ 07:15 ▲ 13:40 ▼ 20:25
Tue, 6 Oct
16:00
Decent 68/100
gentle breeze, dry, waves 1.0 m · 1.0 m · 18 km/h
▲ 02:50 ▼ 08:50 ▲ 14:55 ▼ 21:30
Wed, 7 Oct
10:00
Fresh 58/100
moderate breeze, dry, waves 0.8 m · 0.8 m · 26 km/h
▲ 03:55 ▼ 09:50 ▲ 16:00 ▼ 22:25
Thu, 8 Oct
13:00
Decent 73/100
moderate breeze, showers possible · 21 km/h
▲ 04:40 ▼ 10:40 ▲ 16:45 ▼ 23:10

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 23:0035 · Blowymoderate breeze · onshore, choppy
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 18:00 · 19 GrimFri 19:00 · 19 GrimFri 20:00 · 19 Grim · nightFri 21:00 · 35 Blowy · nightFri 22:00 · 35 Blowy · nightFri 23:00 · 35 Blowy · nightSat 00:00 · 35 Blowy · nightSat 01:00 · 35 Blowy · nightSat 02:00 · 35 Blowy · nightSat 03:00 · 35 Blowy · nightSat 04:00 · 35 Blowy · nightSat 05:00 · 35 Blowy · nightSat 06:00 · 52 Fresh · nightSat 07:00 · 57 Fresh · nightSat 08:00 · 68 DecentSat 09:00 · 73 DecentSat 10:00 · 73 DecentSat 11:00 · 73 DecentSat 12:00 · 73 DecentSat 13:00 · 73 DecentSat 14:00 · 57 FreshSat 15:00 · 63 DecentSat 16:00 · 57 FreshSat 17:00 · 63 DecentSat 18:00 · 47 FreshSat 19:00 · 47 FreshSat 20:00 · 47 Fresh · nightSat 21:00 · 41 Blowy · nightSat 22:00 · 30 Blowy · nightSat 23:00 · 22 Grim · nightSun 00:00 · 22 Grim · nightSun 01:00 · 22 Grim · nightSun 02:00 · 22 Grim · nightSun 03:00 · 16 Grim · nightSun 04:00 · 16 Grim · nightSun 05:00 · 16 Grim · nightSun 06:00 · 41 Blowy · nightSun 07:00 · 41 Blowy · nightSun 08:00 · 41 BlowySun 09:00 · 41 BlowySun 10:00 · 41 BlowySun 11:00 · 41 BlowySun 12:00 · 41 BlowySun 13:00 · 41 BlowySun 14:00 · 41 BlowySun 15:00 · 41 BlowySun 16:00 · 41 BlowySun 17:00 · 41 BlowySun 18:00 · 57 FreshSun 19:00 · 41 BlowySun 20:00 · 41 Blowy · nightSun 21:00 · 41 Blowy · nightSun 22:00 · 41 Blowy · nightSun 23:00 · 29 Blowy · nightMon 00:00 · 25 Grim · nightMon 01:00 · 8 Grim · nightMon 02:00 · 33 Blowy · nightMon 03:00 · 8 Grim · nightMon 04:00 · 8 Grim · nightMon 05:00 · 24 Grim · nightMon 06:00 · 24 Grim · nightMon 07:00 · 40 Blowy · nightMon 08:00 · 24 GrimMon 09:00 · 24 GrimMon 10:00 · 41 BlowyMon 11:00 · 41 BlowyMon 12:00 · 41 BlowyMon 13:00 · 41 BlowyMon 14:00 · 41 BlowyMon 15:00 · 41 BlowyMon 16:00 · 41 BlowyMon 17:00 · 41 BlowyMon 18:00 · 41 BlowyMon 19:00 · 41 BlowyMon 22:00 · 45 Fresh · nightTue 01:00 · 60 Fresh · nightTue 04:00 · 49 Fresh · nightTue 07:00 · 50 Fresh · nightTue 10:00 · 50 FreshTue 13:00 · 58 FreshTue 16:00 · 68 DecentTue 19:00 · 68 DecentTue 22:00 · 68 Decent · nightWed 01:00 · 58 Fresh · nightWed 04:00 · 70 Decent · nightWed 07:00 · 70 Decent · nightWed 10:00 · 58 FreshWed 13:00 · 52 FreshWed 16:00 · 36 BlowyWed 19:00 · 36 BlowyWed 22:00 · 36 Blowy · nightThu 01:00 · 42 Blowy · nightThu 07:00 · 73 Decent · nightThu 13:00 · 73 DecentThu 19:00 · 41 Blowy

Fri, 2 Oct, 23:00

35 Blowy
  • moderate breeze
  • onshore, choppy
  • dry
  • big sea 1.6 m
  • high tide
  • onshore wind
NESWsunrisesunset1.6 m21 km/h
faces 250° WSW · wind onshore
Waves
1.6 m @ 11 s from WSW
Wind
21 km/h W · gusts 39
Tide
3.6 m · high
Air
9°C · dry

Meteogram

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

Hour by hour

Next 48 hours
TimeDipWavesPeriodFromWindGustTideRainAirWhy
Today
22:0035 Blowy1.6 m (0.8 swell)11 sWSW22 km/h W433.6 m ▲dry9°moderate breeze, onshore, choppy, dry
23:0035 Blowy1.6 m (0.8 swell)11 sWSW21 km/h W393.6 m ▲dry9°moderate breeze, onshore, choppy, dry
Saturday, 3 October
00:0035 Blowy1.6 m (0.8 swell)11 sWSW22 km/h W363.3 m dry9°moderate breeze, onshore, choppy, dry
01:0035 Blowy1.6 m (0.8 swell)10 sWSW22 km/h WSW352.8 m dry9°moderate breeze, onshore, choppy, dry
02:0035 Blowy1.6 m (0.8 swell)10 sWSW22 km/h WSW352.3 m dry9°moderate breeze, onshore, choppy, dry
03:0035 Blowy1.5 m (0.8 swell)10 sWSW21 km/h WSW351.8 m dry10°moderate breeze, onshore, choppy, dry
04:0035 Blowy1.5 m (0.8 swell)10 sWSW24 km/h WSW351.4 m ▼dry10°moderate breeze, onshore, choppy, dry
05:0035 Blowy1.5 m (0.8 swell)10 sWSW22 km/h WSW361.4 m ▼dry10°moderate breeze, onshore, choppy, dry
06:0052 Fresh1.5 m (0.8 swell)10 sWSW22 km/h WSW351.6 m dry10°moderate breeze, onshore, choppy, dry
07:0057 Fresh1.5 m (0.8 swell)10 sWSW23 km/h W322.1 m dry10°moderate breeze, onshore, choppy, dry
08:0068 Decent1.5 m (0.8 swell)10 sWSW17 km/h WSW302.7 m dry10°gentle breeze, dry, waves 1.5 m
09:0073 Decent1.4 m (0.8 swell)10 sWSW16 km/h WSW273.2 m dry10°gentle breeze, dry, waves 1.4 m
10:0073 Decent1.4 m (0.8 swell)10 sWSW16 km/h WSW273.6 m ▲dry11°gentle breeze, dry, waves 1.4 m
11:0073 Decent1.4 m (0.7 swell)10 sWSW16 km/h SW273.7 m ▲dry11°gentle breeze, dry, waves 1.4 m
12:0073 Decent1.4 m (0.8 swell)10 sWSW17 km/h SW303.6 m ▲dry11°gentle breeze, dry, waves 1.4 m
13:0073 Decent1.4 m (0.8 swell)10 sWSW19 km/h SSW323.2 m dry11°gentle breeze, dry, waves 1.4 m
14:0057 Fresh1.4 m (0.8 swell)10 sWSW21 km/h SSW352.6 m dry11°moderate breeze, onshore, choppy, dry
15:0063 Decent1.4 m (0.8 swell)10 sWSW23 km/h SSW382.0 m dry11°moderate breeze, dry, waves 1.4 m
16:0057 Fresh1.4 m (0.8 swell)10 sWSW27 km/h SSW421.6 m dry11°moderate breeze, onshore, choppy, dry
17:0063 Decent1.4 m (0.8 swell)10 sWSW28 km/h SSW451.3 m ▼dry11°moderate breeze, dry, waves 1.4 m
18:0047 Fresh1.4 m (0.8 swell)10 sWSW30 km/h SSW481.3 m ▼dry11°fresh breeze, dry, waves 1.4 m
19:0047 Fresh1.5 m (0.8 swell)10 sWSW30 km/h SSW491.6 m dry11°fresh breeze, dry, waves 1.5 m
20:0047 Fresh1.5 m (0.8 swell)10 sWSW29 km/h SSW492.0 m dry11°fresh breeze, dry, waves 1.5 m
21:0041 Blowy1.5 m (0.8 swell)10 sWSW31 km/h SSW502.5 m dry11°fresh breeze, onshore, choppy, dry
22:0030 Blowy1.5 m (0.8 swell)10 sWSW32 km/h SSW523.0 m dry11°fresh breeze, dry, big sea 1.5 m
23:0022 Grim1.5 m (0.8 swell)10 sWSW34 km/h SSW553.3 m ▲dry11°fresh breeze, dry, big sea 1.5 m
Sunday, 4 October
00:0022 Grim1.5 m (0.8 swell)10 sWSW36 km/h SSW573.4 m ▲dry11°fresh breeze, dry, big sea 1.5 m
01:0022 Grim1.5 m (0.8 swell)10 sWSW36 km/h SSW583.2 m dry12°fresh breeze, dry, big sea 1.5 m
02:0022 Grim1.5 m (0.8 swell)11 sWSW33 km/h SSW572.9 m 0.1 mm12°fresh breeze, dry, big sea 1.5 m
03:0016 Grim1.5 m (0.8 swell)11 sWSW34 km/h SSW572.4 m 0.1 mm12°fresh breeze, onshore, choppy, dry
04:0016 Grim1.5 m (0.8 swell)11 sWSW32 km/h SSW562.0 m 0.1 mm12°fresh breeze, onshore, choppy, dry
05:0016 Grim1.5 m (0.8 swell)11 sWSW33 km/h SSW551.7 m ▼0.1 mm12°fresh breeze, onshore, choppy, dry
06:0041 Blowy1.5 m (0.8 swell)11 sWSW33 km/h SW541.6 m ▼0.1 mm12°fresh breeze, onshore, choppy, dry
07:0041 Blowy1.5 m (0.8 swell)11 sWSW34 km/h SW521.8 m 0.1 mm12°fresh breeze, onshore, choppy, dry
08:0041 Blowy1.5 m (0.8 swell)11 sWSW33 km/h SW512.1 m 0.1 mm12°fresh breeze, onshore, choppy, dry
09:0041 Blowy1.5 m (0.8 swell)10 sWSW32 km/h SW512.6 m 0.1 mm12°fresh breeze, onshore, choppy, dry
10:0041 Blowy1.5 m (0.7 swell)10 sWSW31 km/h SW503.0 m 0.1 mm12°fresh breeze, onshore, choppy, dry
11:0041 Blowy1.5 m (0.7 swell)10 sWSW32 km/h SW493.4 m ▲dry12°fresh breeze, onshore, choppy, dry
12:0041 Blowy1.5 m (0.7 swell)10 sWSW33 km/h SSW483.5 m ▲0.1 mm12°fresh breeze, onshore, choppy, dry
13:0041 Blowy1.5 m (0.7 swell)10 sWSW34 km/h SW493.5 m ▲0.1 mm12°fresh breeze, onshore, choppy, dry
14:0041 Blowy1.5 m (0.7 swell)10 sWSW33 km/h SW493.2 m dry12°fresh breeze, onshore, choppy, dry
15:0041 Blowy1.4 m (0.7 swell)10 sWSW32 km/h SW502.8 m dry12°fresh breeze, onshore, choppy, dry
16:0041 Blowy1.4 m (0.7 swell)10 sWSW32 km/h SW492.3 m dry12°fresh breeze, onshore, choppy, dry
17:0041 Blowy1.4 m (0.6 swell)10 sWSW31 km/h SW491.8 m dry12°fresh breeze, onshore, choppy, dry
18:0057 Fresh1.4 m (0.6 swell)10 sWSW28 km/h SW491.5 m ▼dry12°moderate breeze, onshore, choppy, dry
19:0041 Blowy1.4 m (0.6 swell)10 sWSW35 km/h SW491.4 m ▼dry12°fresh breeze, onshore, choppy, dry
20:0041 Blowy1.4 m (0.7 swell)10 sWSW35 km/h SW441.5 m ▼dry12°fresh breeze, onshore, choppy, dry
21:0041 Blowy1.4 m (0.7 swell)10 sWSW37 km/h WSW441.8 m dry12°fresh breeze, onshore, choppy, dry

Where the energy comes from

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

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

Tide today

Achill Island (modelled), 6 km away · metres above chart datum
03:3509:4516:0522:30
Low 03:35 · 1.1 mHigh 09:45 · 4.0 mLow 16:05 · 1.1 mHigh 22:30 · 3.6 m

The spot

Faces
250° WSW
Swell window
ESE 110° → ENE 60°
Exposure
Open coast · model cell 1.3 km out
Water
Excellent Quality · Blue Flag

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, 2023 Excellent, 2022 Excellent. The EPA flags a short-term pollution risk here after heavy rain.

Beach profile (PDF) · beaches.ie

On the ground

Lifeguard: YesToiletsParkingAccessible: Ramp leading to the beachDogs on lead (Dogs only allowed before 12pm and after 6.30pm during the bathing season (1st June to 15th September) otherwise allowed at all times onto beach.)

As listed by Mayo County Council. Open in Maps.

Sauna after?

Sabhna Saunas (Keel) · Keel Beach, Achill Island · 8 km · fixed

Sabhna Saunas (Dugort) · Dugort Blue Flag Beach, Achill Island · 12 km · fixed

Keem Beach is a sheltered sandy beach facing southeast with a steep gradient. Two freshwater streams flow into the sea from the surrounding land at Keem beach. Keem Beach has a variety of habitats including large shallow bays and inlets, reefs and mudflats and sandflats which support a variety of plant, animal and bird species. Keem Beach forms part of the Croaghan/Slievemore SAC and pNHA (Site Code 001955) and Achill Head SAC (Site Code 002268). Activities include swimming, surfing, sailing, canoeing, water skiing, jet skies, scuba-diving / snorkelling and fishing. The designated bathing area is approximately 300m in length and approximately 0.14km2 in area. The medium and maximum water depth within the designated bathing water is 0.5m and 5.0m respectively depending on tides.

Put Keem Beach, Achill Island 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
🌊 Keem Beach, Achill Island dip · Decent · sea 15° · 1.4 mSat, 3 Oct 08:30–09:30 · gentle breeze, dry, waves 1.4 m
🌊 Keem Beach, Achill Island dip · Fresh · sea 15° · 1.4 mSun, 4 Oct 17:30–18:30 · moderate breeze, onshore, choppy, dry

Nearby spots

Lough Acorrymore

2 km · Co. Mayo · Not classified

Lough Corryntravy

3 km · Co. Mayo · Not classified

Lough Nakearoge

5 km · Co. Mayo · Not classified

Loch Mhullach a' Bhaile

5 km · Co. Mayo · Not classified

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