Portmarnock (Velvet Strand)

Co. Dublin · faces E · exposed ·

Blue Flagdogs allowedLifeguards: 11am to 7pm weekends only in June & full time July, August & first two weeks in SeptToiletsParkingWheelchair accessiblePublic transport: Bus RouteDogs on a lead

Offshore wind: smooth water near the shore, calm sea.

Scores are estimates from forecasts, not a safety rating. Before you go in

Tides (model): High 01:00 · Low 07:00 · High 14:00 · Low 20:00

Sunrise 07:48 · Sunset 16:29 · UV 1 (low)

Water quality

ExcellentLatest official EPA rating (2025 season) · 2024: Excellent · 2023: Excellent · 2022: Excellent

The EPA rates each bathing season after it ends, using the last four years of samples: the 2026 rating is usually published in spring 2027.

After heavy rain this beach can have short-term pollution. Check for alerts on beaches.ie before swimming, especially in summer.

Source: EPA bathing water data (Portmarnock, Velvet Strand Beach), CC BY 4.0. Water is tested from June to mid-September. Beach profile (PDF)

Hour by hour · Overall · Today

Wind in

Time	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21
Score	dark	4.3	4.5	4.6	5.0	5.6	5.9	6.0	5.8	5.3	5.1	dark	dark	dark	dark	dark
Wind kn	5	6	7	7	8	10	9	11	11	12	12	11	12	13	11	11
Direction	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Waves at beach m	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Swell offshore m · s	0.4 3s	0.4 3s	0.5 3s	0.5 3s	0.6 3s	0.6 4s	0.7 4s	0.8 4s	0.9 4s	1.0 4s	1.0 5s	1.1 5s	1.1 5s	1.1 5s	1.1 5s	1.2 5s
Tide
Water °C	11.5	11.5	11.5	11.5	11.5	11.5	11.5	11.5	11.5	11.4	11.4	11.4	11.4	11.4	11.4	11.4
Air °C	8	8	9	9	10	11	11	12	11	11	11	10	10	10	10	10
Rain chance %	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	4
Rain mm	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Cloud %	95	100	100	100	100	22	89	0	0	100	83	100	52	100	100	100

Highlighted columns: the best 3-hour window; grey columns are before sunrise or after sunset. Tides come from a global model and can be off by up to an hour: check local tide tables before swimming.