Dipper › Co. Mayo

Bertra Beach, Murrisk

Excellent Quality 2025 Blue Flag faces WNW

🌊 Dip🏄 Surf
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Dip score now
84
Grand · moderate breeze, dry
Waves
0.3 m
12 s period from WNW · model cell 1.7 km out
Sea
15.1°
Grand. M2 buoy, Irish Sea east of Dublin, 281 km away.
Tide
1.8 m
Rising. High at 09:40.
Wind
22 km/h
Moderate breeze, SSW, cross, gusts 36
Daylight
07:41
Sunrise. Sunset 19:14. Air 15°C.

Best dip each day

Daylight hours
Today
14:00
Decent 78/100
moderate breeze, onshore, choppy, dry · 0.2 m · 27 km/h
▼ 03:10 ▲ 09:40 ▼ 15:50 ▲ 22:20
Sat, 3 Oct
12:00
Grand 100/100
light winds, dry, calm sea · 0.2 m · 12 km/h
▼ 04:10 ▲ 10:45 ▼ 17:05 ▲ 23:45
Sun, 4 Oct
10:00
Grand 84/100
moderate breeze, dry, calm sea · 0.2 m · 23 km/h
▼ 05:30 ▲ 12:05 ▼ 19:00
Mon, 5 Oct
19:00
Grand 86/100
gentle breeze, showers possible, calm sea · 0.2 m · 16 km/h
▲ 01:15 ▼ 07:20 ▲ 13:40 ▼ 20:30
Tue, 6 Oct
16:00
Grand 94/100
gentle breeze, dry, calm sea · 0.2 m · 17 km/h
▲ 02:55 ▼ 08:50 ▲ 15:00 ▼ 21:30
Wed, 7 Oct
10:00
Grand 83/100
gentle breeze, showers possible, low tide · 16 km/h
▲ 03:50 ▼ 09:50 ▲ 15:55 ▼ 22:25
Thu, 8 Oct
13:00
Grand 86/100
gentle breeze, showers possible · 13 km/h
▲ 04:35 ▼ 10:30 ▲ 16:40 ▼ 23:05

Week at a glance

Tap or drag to pick an hour. Everything below follows.
Fri 05:0084 · Grandmoderate breeze · dry
Fri 2Sat 3Sun 4Mon 5Tue 6Wed 7Thu 80003060912151821Fri 01:00 · 84 Grand · nightFri 02:00 · 84 Grand · nightFri 03:00 · 84 Grand · nightFri 04:00 · 84 Grand · nightFri 05:00 · 84 Grand · nightFri 06:00 · 84 Grand · nightFri 07:00 · 76 Decent · nightFri 08:00 · 51 FreshFri 09:00 · 61 FreshFri 10:00 · 38 BlowyFri 11:00 · 51 FreshFri 12:00 · 60 FreshFri 13:00 · 76 DecentFri 14:00 · 78 DecentFri 15:00 · 78 DecentFri 16:00 · 78 DecentFri 17:00 · 62 DecentFri 18:00 · 62 DecentFri 19:00 · 75 DecentFri 20:00 · 75 Decent · nightFri 21:00 · 75 Decent · nightFri 22:00 · 91 Grand · nightFri 23:00 · 91 Grand · nightSat 00:00 · 91 Grand · nightSat 01:00 · 91 Grand · nightSat 02:00 · 91 Grand · nightSat 03:00 · 81 Grand · nightSat 04:00 · 91 Grand · nightSat 05:00 · 91 Grand · nightSat 06:00 · 91 Grand · nightSat 07:00 · 91 Grand · nightSat 08:00 · 91 GrandSat 09:00 · 91 GrandSat 10:00 · 94 GrandSat 11:00 · 94 GrandSat 12:00 · 100 GrandSat 13:00 · 94 GrandSat 14:00 · 94 GrandSat 15:00 · 94 GrandSat 16:00 · 84 GrandSat 17:00 · 84 GrandSat 18:00 · 84 GrandSat 19:00 · 84 GrandSat 20:00 · 84 Grand · nightSat 21:00 · 84 Grand · nightSat 22:00 · 84 Grand · nightSat 23:00 · 84 Grand · nightSun 00:00 · 68 Decent · nightSun 01:00 · 68 Decent · nightSun 02:00 · 84 Grand · nightSun 03:00 · 76 Decent · nightSun 04:00 · 76 Decent · nightSun 05:00 · 76 Decent · nightSun 06:00 · 76 Decent · nightSun 07:00 · 76 Decent · nightSun 08:00 · 76 DecentSun 09:00 · 76 DecentSun 10:00 · 84 GrandSun 11:00 · 84 GrandSun 12:00 · 84 GrandSun 13:00 · 76 DecentSun 14:00 · 84 GrandSun 15:00 · 84 GrandSun 16:00 · 84 GrandSun 17:00 · 84 GrandSun 18:00 · 84 GrandSun 19:00 · 84 GrandSun 20:00 · 84 Grand · nightSun 21:00 · 84 Grand · nightSun 22:00 · 84 Grand · nightSun 23:00 · 84 Grand · nightMon 00:00 · 84 Grand · nightMon 01:00 · 78 Decent · nightMon 02:00 · 94 Grand · nightMon 03:00 · 84 Grand · nightMon 04:00 · 84 Grand · nightMon 05:00 · 78 Decent · nightMon 06:00 · 78 Decent · nightMon 07:00 · 84 Grand · nightMon 10:00 · 70 DecentMon 13:00 · 76 DecentMon 16:00 · 76 DecentMon 19:00 · 86 GrandMon 22:00 · 86 Grand · nightTue 01:00 · 86 Grand · nightTue 04:00 · 86 Grand · nightTue 07:00 · 78 Decent · nightTue 10:00 · 83 GrandTue 13:00 · 86 GrandTue 16:00 · 94 GrandTue 19:00 · 91 GrandTue 22:00 · 97 Grand · nightWed 01:00 · 89 Grand · nightWed 04:00 · 89 Grand · nightWed 07:00 · 89 Grand · nightWed 10:00 · 83 GrandWed 13:00 · 67 DecentWed 19:00 · 83 GrandThu 01:00 · 83 Grand · nightThu 07:00 · 97 Grand · nightThu 13:00 · 86 GrandThu 19:00 · 60 Fresh

Fri, 2 Oct, 05:00

84 Grand
  • moderate breeze
  • dry
  • calm sea
  • cross wind
NESWsunrisesunset0.3 m22 km/h
faces 297° WNW · wind cross
Waves
0.3 m @ 12 s from WNW
Wind
22 km/h SSW · gusts 36
Tide
1.6 m · lower half
Air
15°C · dry

Meteogram

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

Hour by hour

Next 48 hours
TimeDipWavesPeriodFromWindGustTideRainAirWhy
Today
05:0084 Grand0.3 m (0.2 swell)12 sWNW22 km/h SSW361.6 m dry15°moderate breeze, dry, calm sea
06:0084 Grand0.3 m (0.2 swell)12 sWNW23 km/h SSW372.2 m 0.1 mm15°moderate breeze, dry, calm sea
07:0076 Decent0.3 m (0.2 swell)12 sWNW27 km/h SSW412.8 m 0.6 mm15°moderate breeze, showers possible, calm sea
08:0051 Fresh0.3 m12 sWNW29 km/h SSW463.4 m 1.1 mm15°fresh breeze, rain, calm sea
09:0061 Fresh0.3 m12 sWNW26 km/h SSW493.8 m ▲2.2 mm15°moderate breeze, rain, calm sea
10:0038 Blowy0.3 m12 sWNW31 km/h SSW533.9 m ▲3.6 mm15°fresh breeze, rain, calm sea
11:0051 Fresh0.3 m12 sWNW20 km/h SW543.7 m 3.3 mm13°moderate breeze, rain, calm sea
12:0060 Fresh0.3 m12 sWNW23 km/h SW473.1 m 2.3 mm13°moderate breeze, rain, calm sea
13:0076 Decent0.3 m12 sWNW27 km/h SSW422.5 m 0.5 mm14°moderate breeze, showers possible, calm sea
14:0078 Decent0.2 m11 sWNW27 km/h W411.9 m 0.1 mm15°moderate breeze, onshore, choppy, dry
15:0078 Decent0.2 m11 sWNW28 km/h W391.4 m ▼dry14°moderate breeze, onshore, choppy, dry
16:0078 Decent0.2 m11 sWNW27 km/h W401.3 m ▼dry14°moderate breeze, onshore, choppy, dry
17:0062 Decent0.3 m11 sWNW29 km/h W411.4 m ▼dry14°fresh breeze, onshore, choppy, dry
18:0062 Decent0.3 m11 sWNW29 km/h W401.8 m dry13°fresh breeze, onshore, choppy, dry
19:0075 Decent0.3 m11 sWNW27 km/h W372.3 m dry13°moderate breeze, onshore, choppy, dry
20:0075 Decent0.3 m11 sWNW25 km/h W332.8 m dry13°moderate breeze, onshore, choppy, dry
21:0075 Decent0.3 m11 sWNW22 km/h W303.3 m dry12°moderate breeze, onshore, choppy, dry
22:0091 Grand0.3 m11 sWNW18 km/h W273.6 m ▲dry12°gentle breeze, dry, calm sea
23:0091 Grand0.2 m11 sWNW16 km/h WSW243.6 m ▲dry12°gentle breeze, dry, calm sea
Saturday, 3 October
00:0091 Grand0.2 m11 sWNW16 km/h SW243.3 m dry11°gentle breeze, dry, calm sea
01:0091 Grand0.2 m11 sWNW17 km/h SW242.8 m dry11°gentle breeze, dry, calm sea
02:0091 Grand0.2 m11 sWNW16 km/h SW242.2 m dry12°gentle breeze, dry, calm sea
03:0081 Grand0.2 m11 sWNW20 km/h SW231.8 m dry12°moderate breeze, dry, calm sea
04:0091 Grand0.2 m10 sWNW19 km/h SW231.6 m ▼dry12°gentle breeze, dry, calm sea
05:0091 Grand0.2 m10 sWNW15 km/h SW221.6 m ▼dry12°gentle breeze, dry, calm sea
06:0091 Grand0.2 m10 sWNW13 km/h SW211.9 m dry12°gentle breeze, dry, calm sea
07:0091 Grand0.2 m10 sWNW13 km/h SSW192.3 m dry11°gentle breeze, dry, calm sea
08:0091 Grand0.2 m10 sWNW14 km/h SSW182.8 m dry11°gentle breeze, dry, calm sea
09:0091 Grand0.2 m10 sWNW15 km/h SW173.2 m dry12°gentle breeze, dry, calm sea
10:0094 Grand0.2 m10 sWNW13 km/h SW183.5 m ▲dry14°gentle breeze, dry, calm sea
11:0094 Grand0.2 m10 sWNW14 km/h SW213.6 m ▲dry14°gentle breeze, dry, calm sea
12:00100 Grand0.2 m10 sWNW12 km/h SW223.5 m dry15°light winds, dry, calm sea
13:0094 Grand0.2 m10 sWNW14 km/h SSW243.1 m dry16°gentle breeze, dry, calm sea
14:0094 Grand0.2 m10 sWNW16 km/h SSW272.6 m dry16°gentle breeze, dry, calm sea
15:0094 Grand0.2 m10 sWNW17 km/h SSW282.1 m dry16°gentle breeze, dry, calm sea
16:0084 Grand0.2 m10 sWNW20 km/h SSW301.7 m ▼dry15°moderate breeze, dry, calm sea
17:0084 Grand0.2 m10 sWNW22 km/h SSW301.5 m ▼dry15°moderate breeze, dry, calm sea
18:0084 Grand0.2 m10 sWNW26 km/h SSW301.6 m ▼dry15°moderate breeze, dry, calm sea
19:0084 Grand0.2 m10 sWNW28 km/h SSW301.8 m dry15°moderate breeze, dry, calm sea
20:0084 Grand0.2 m10 sWNW26 km/h SSW302.1 m dry15°moderate breeze, dry, calm sea
21:0084 Grand0.2 m10 sWNW27 km/h SSW312.6 m dry16°moderate breeze, dry, calm sea
22:0084 Grand0.2 m10 sWNW26 km/h SW343.0 m dry16°moderate breeze, dry, calm sea
23:0084 Grand0.2 m10 sWNW28 km/h SW373.3 m ▲dry16°moderate breeze, dry, calm sea
Sunday, 4 October
00:0068 Decent0.2 m10 sWNW32 km/h SSW393.3 m ▲dry16°fresh breeze, dry, calm sea
01:0068 Decent0.2 m10 sWNW34 km/h SW413.2 m dry16°fresh breeze, dry, calm sea
02:0084 Grand0.2 m10 sWNW23 km/h SW422.9 m 0.1 mm16°moderate breeze, dry, calm sea
03:0076 Decent0.2 m10 sWNW24 km/h SW422.5 m 0.1 mm16°moderate breeze, showers possible, calm sea
04:0076 Decent0.2 m10 sWNW24 km/h SW422.1 m 0.2 mm16°moderate breeze, showers possible, calm sea

Where the energy comes from

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

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

Tide today

Roonagh, 16 km away · metres above chart datum
03:1009:4015:5022:20
Low 03:10 · 1.2 mHigh 09:40 · 3.9 mLow 15:50 · 1.3 mHigh 22:20 · 3.6 m

The spot

Faces
297° WNW
Swell window
W 260° → N 350°
Exposure
Sheltered · model cell 1.7 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: YesDogs 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?

The Wild Atlantic Sauna (Slainte Saunas) · Old Head Beach, Louisburgh · 7 km · fixed

Big Dipper Sauna · Carrowniskey Beach, BigStyle Atlantic Lodge, Louisburgh · 18 km · fixed

Sweathouse (Renvyle) · Gurteen Pier, Renvyle, Connemara, Co. Galway · 29 km · fixed

Bertra beach consists of a sandy dune area with the centre of the designated bathing area enclosed by caged stone. Bertra Beach is an exposed beach and can be subject to rip tides/strong currents. The sand dunes consist of embryonic dunes and marrram dunes both of which are listed under Annex I of the EU Habitats Directive. Restoration work on the sand dunes due to erosion has taken place over the last decade and has reduced the extent of the erosion. Bertra Beach forms part of the Clew Bay Complex (SAC & SPA) Site Code 001482. In close proximity to Old Head Beach is Old Head SAC/pNHA (Site Code 000532). Bertra Beach lies at the foot of Croagh Patrick. Activities include swimming, surfing, canoeing and angling. The bathing water is approximately 1km2 in area. The medium and the maximum water depth within the designated bathing area is 0.5m and 5.0m respectively depending on the tides.

Put Bertra Beach, Murrisk 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
🌊 Bertra Beach, Murrisk dip · Decent · sea 15° · 0.2 mFri, 2 Oct 13:30–14:30 · moderate breeze, onshore, choppy, dry
🌊 Bertra Beach, Murrisk dip · Grand · sea 15° · 0.2 mSat, 3 Oct 11:30–12:30 · light winds, dry, calm sea
🌊 Bertra Beach, Murrisk dip · Grand · sea 15° · 0.2 mSun, 4 Oct 09:30–10:30 · moderate breeze, dry, calm sea

Nearby spots

Parkmore Lough

2 km · Co. Mayo · Not classified

Annagh Lough

4 km · Co. Mayo · Not classified

Killadangan Lough

5 km · Co. Mayo · Not classified

Prospect Lough

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.