Should you sail in Plymouth Sound?
CAUTION — Sail only if you are experienced and prepared. Sailing score 65/100 · United Kingdom. Strong wind — experienced crew only. Marine data unavailable. Better window tomorrow around 12:00 AM.
About sailing in Plymouth Sound
Plymouth Sound is a vast natural anchorage on England's south coast — historic departure point and active naval port.
Best time to sail
April through October; summer offers the best chance of fair-weather sailing in the Western Approaches.
Sailing notes
Naval restricted areas and strong tides at the breakwater; fog can reduce visibility quickly.
Wind and local conditions
Southwesterly winds prevail; local funneling around the breakwater can amplify gusts.
What SailCall covers
Wind, seas, rain, visibility, and pressure for today's coastal day sail, using WeatherAPI.com forecast and marine data. Wave outlook is included; tide times are not yet — check a local tide table before harbor entry. Not a chart plotter or passage planner.
Should I go sailing today?
Plymouth Sound
CAUTION
Sail only if you are experienced and prepared
65
Sailing score
Next 24 hours
Hourly sailing comfort at the harbor — today and tomorrow are local to the marina.
Best intervals: Tomorrow 8:00 AM – 12:00 PM
Boat type
Showing Keelboat wind thresholds
Hover or tap an hour for details · Next 24 hours
At harbor: Sun, Jul 5, 12:00 AM (British Summer Time)
The call
Marginal conditions near Plymouth Sound today — strong wind — experienced crew only. A better window may be tomorrow morning.
Location
Plymouth Sound, United Kingdom
Today's seas
No marine wave data for this point. Try searching closer to open water or a coastal waypoint. Offshore forecasts need a sea position, not an inland pin.
Conditions at a glance
What stood out in the forecast
Wind
Fair11 kt · BF 4
Sustained to 11 kt · gusts to 22 kt · BF 6
Beaufort 6 — manageable for experienced crews but not relaxing. Reef before open water, plan a route with lee shore options, and expect harder docking and mooring picks.
Rain
Good0%
0.0 mm total · 0% peak chance · 0 wet hour(s)
Little rain expected — one less factor stealing visibility and grip on deck. Still pack a light jacket; conditions change faster on the water than ashore.
Air temperature
Good23°C
Air 16–23°C · feels like 15–23°C
Comfortable air temperatures for deck work, but water temperature may still be much colder — a dip without proper gear can shock even on a warm day.
Visibility
Good6.4 nm
Lowest 6.4 nm · best 17 nm today
Generally clear sightlines (about 11.8–17 nm). Good for spotting traffic and shoreline references — still verify charted marks; glare and spray can fool you even on “clear” days.
Barometric pressure
Good1026 hPa
1026 hPa → steady
Pressure is steady — no strong synoptic system pushing through on this snapshot. Local wind, sea breeze, and geography still dominate near shore.
UV / sun
GoodUV 5.9
Moderate index — standard protection recommended. · peak near 13:00
Lower UV today, but reflection off water still adds exposure. Sunglasses and SPF remain cheap insurance on the water.
Why we said CAUTION
What pushed the score — how we score
Strong wind — experienced crew only
HighWinds up to 11 kt, gusts to 22 kt. Reef early and avoid exposed passages.
Marine data unavailable
HighWave forecast could not be loaded for this point. Try a location closer to open water.
How we decided
We score sailing conditions with fixed thresholds, so you can see why we picked go, caution, or no-go. Official charts, tide books, and your own judgment still run the show.
- GO — sailing score ≥70 with no critical blockers
- CAUTION — score 45–69, or manageable risks
- NO-GO — score <45 or dangerous wind/seas/storms
Engine v1.1.19 · open_meteo marine + forecast · Evaluated Sat, Jul 4, 12:59 PM (British Summer Time) · limited marine data
What should I do?
What to do next
Better window tomorrow around 12:00 AM
Conditions should improve around Tomorrow 12:00 AM (British Summer Time) — consider delaying departure until then.
At harbor: Sun, Jul 5, 12:00 AM (British Summer Time)
Reef early and wear PFDs
Reduce sail area before leaving the harbor and keep crew in life jackets.
Consider a sheltered route
Stay inside the bay or in the lee of the land if you go out.
Day outlook
2-day · °C, kt, m, nm, mm
Today
Poor
23°C / 16°C
No rain
Not ideal: breezy conditions (remaining hours).
Tomorrow
Poor
23°C / 15°C
No rain
Not ideal: breezy conditions.
Forecast data from third-party providers.