Tide times & coastal conditions

Know the water before you go.

Tidepool reads the tide for the places you swim, surf, and walk — today's curve, the next seven days, and an alert before the water turns.

Tracking 4,200+ stations across the North Atlantic and Irish Sea.
Dún Laoghaire Harbour53.29°N · 6.13°W
Local time—:—
Now—m
Next high—
Next low—
Water11.4°C
Swell0.6m · 8s
Spring–neap cycle: neap, building Coefficient: 54 Sunrise 05:11 · Sunset 21:44 Moon: waxing gibbous Updated just now

What you get

Three things, done properly.

No dashboards to learn. Open it, see the water, plan your morning.

Daily tide tables

Highs and lows to the minute, with heights in metres and the curve for the whole day at a glance.

Seven-day outlook

Spring and neap days marked clearly, so you can pick the right tide for a swim, a surf, or a low-water walk.

Shoreline alerts

Pick a height and a window. We tell you the evening before — only when it matters, never a feed to scroll.

Where the numbers come from

Harmonic predictions, checked against real gauges.

Every station is built from published harmonic constituents and reconciled nightly against live tide-gauge readings. When a gauge and the prediction disagree, the gauge wins — and you see both. The same predictions power our read-only API.

# GET /v1/stations/dun-laoghaire/today { "station": "dun-laoghaire", "datum": "LAT", "extrema": [ { "type": "high", "t": "04:52", "h": 4.1 }, { "type": "low", "t": "11:08", "h": 0.7 }, { "type": "high", "t": "17:19", "h": 4.0 }, { "type": "low", "t": "23:31", "h": 0.9 } ] }

Pricing

Free for one coast. A little more for all of them.

Shoreline
Free
  • One saved location
  • Today plus three-day outlook
  • Daily tide tables
Start watching
Tidepool+
€4/month
  • Unlimited saved locations
  • Full seven-day outlook
  • Shoreline alerts by email and push
  • API access, 10k calls/month
Go to Tidepool+