Go / No-go calculator

Boston Whaler Ventura 16 — Nevern Estuary

Verdict

Perfect

Sea: Perfect Wind: Perfect

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Newport Boat Club — live wind + forecast

Local anemometer at the Parrog + 7-day Windguru forecast

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Webcam — see the estuary live

Newport Boat Club camera at the Parrog

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Sea conditions LIVE

Swell height (m)

0.2m

Flat0.4m0.8m1.5m

Swell period (seconds)

2s chop6s10s14s ground18s

Total wave height (m) swell + wind waves combined

0.3m

Flat0.5m1.0m1.5m2.0m

Swell direction

Wind LIVE

Wind speed (mph)

8 mph
7 kts

Calm8 / 7kts15 / 13kts20 / 17kts30 / 26kts

Wind gusts (mph)

12 mph
10 kts

None15 / 13kts25 / 22kts35 / 30kts50 / 43kts

Wind direction

Tide + visibility

Calculating tide state...

Visibility

7-day boating forecast

Shows the best windows to go out — conditions + tide combined

Trip planner — range + return time

See how far you can go and when you must leave to get back safely

Outward cruise speed (knots)

17 kts

6 slow101517 cruise25

Safe estuary window (hours from HW)

HW ±2hr

±1hr tight±1.5±2hr normal±2.5±3hr springs

Circles show straight-line range (sea routes follow the coast and may be longer) · Destination times use actual sea distances

Calculate return deadline for a specific destination:

Select a destination for return deadline

Tide chart — Fishguard

Accurate 14-day predictions from harmonic data. Powered by WorldTides.

WorldTides API key

You can update this key anytime. Credits remaining shown after each fetch.

Or enter today's Fishguard times manually:

1st High

1st Low

2nd High

2nd Low

Manual times from tidetimes.co.uk — Fishguard tide times shown directly

Green = safe window (HW ±2hrs) · Red line = now

14-day tide outlook

Enter API key above for accurate predictions, or uses manual estimate (~50 min shift/day)

Scroll sideways for full 14 days → · Green bands = HW ±2hr windows · Weekends marked *

Forecasts + live data

Quick reference

Perfect Swell 0-0.2m · Waves 0-0.3m · Any period · Wind 0-8mph (0-7kts)

Good Swell 0.2-0.4m · Waves 0.3-0.5m · Period <10s · Wind 8-12mph (7-10kts)

Caution Swell 0.4-0.6m · Waves 0.5-0.8m · Wind 12-15mph (10-13kts)

Stay in Swell 0.6-0.8m · Waves 0.8-1.0m · Or any swell 12s+ period · Wind 15-20mph

Dangerous Swell 0.8m+ · Waves 1.0m+ · Or any swell 15s+ period · Wind 20mph+

Northerly wind (N/NNE/NNW) bumps rating one category worse · VHF: Ch16 distress, Ch69 Newport local

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Newport Boat Club weather

Live wind + Windguru forecast combined

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Windguru forecast (7 day)

Newport NBC — wind, waves, tides, temp

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Swell forecast (12 day)

surf-forecast.com — Newport Pembs

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Met Office weather (7 day)

Newport Pembrokeshire — official forecast

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Tide times — Fishguard

Fishguard reference port for Nevern

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Live wind at club (real-time)

Windguru Station 624 — anemometer at Parrog

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Webcam — Newport Boat Club

See the estuary conditions live

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