United Kingdom

Martins Haven

5–20 mMax Depth

shoreEntry

14Species

Conditions Summary

Model forecast · local time (GMT+1)

Model conditions signal71/100

Waves

2.0 m

6.3 s

Swell

0.7 m

6.5 s

Current speed

2.4 km/h

flowing toward N

Water temperature

15.5°C

Wind

32.0 km/h

→ SW

Sea level

0.6 m

falling

WavesChallenging

SwellCalm

Current speedWatch

Forecast Overview

TodayChallenging

Waves1.9–3.4 mCurrent speed3.5 km/h maxWater temperature15.3°C

TomorrowChallenging

Waves1.8–2.5 mCurrent speed4.8 km/h maxWater temperature15.1°C

Fri, Oct 23Challenging

Waves2.0–3.8 mCurrent speed5.3 km/h maxWater temperature15.0°C

Sat, Oct 24Challenging

Waves2.5–2.6 mCurrent speed5.3 km/h maxWater temperature14.8°C

Next 72 hours

02:00

Waves: 1.9 m

Current speed: 2.2 km/h

Water temperature: 15.5°C

08:00

Waves: 3.3 m

Current speed: 2.7 km/h

Water temperature: 15.4°C

14:00

Waves: 3.1 m

Current speed: 0.8 km/h

Water temperature: 15.3°C

20:00

Waves: 2.5 m

Current speed: 2.2 km/h

Water temperature: 15.2°C

02:00

Waves: 2.4 m

Current speed: 0.6 km/h

Water temperature: 15.2°C

08:00

Waves: 2.2 m

Current speed: 0.8 km/h

Water temperature: 15.1°C

14:00

Waves: 1.9 m

Current speed: 1.0 km/h

Water temperature: 15.1°C

20:00

Waves: 1.9 m

Current speed: 1.5 km/h

Water temperature: 15.1°C

02:00

Waves: 2.0 m

Current speed: 0.4 km/h

Water temperature: 15.1°C

08:00

Waves: 3.1 m

Current speed: 0.4 km/h

Water temperature: 15.1°C

14:00

Waves: 3.3 m

Current speed: 2.8 km/h

Water temperature: 15.0°C

20:00

Waves: 2.8 m

Current speed: 0.4 km/h

Water temperature: 14.9°C

Catalog depth5–20 m

Data sources & field guideOpen-Meteo Marine + Weather APIs

Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

May-Sep

Peak month

Aug 16.5°

Jan9.3°

Feb8.5°

Mar8.3°

Apr9.3°

May11.1°

Jun13.4°

Jul15.5°

Aug16.5°

Sep16.1°

Oct14.8°

Nov13.0°

Dec11.0°

Current: moderate

Typical visibility: 10 m

Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.

Explore nearby centers on the map

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Dive Types

reefshoresalt Waterintermediate Difficulty

Questions to ask a local operator

What are today's current, visibility, entry, and exit conditions?
Does the planned route stay within my certification and recent experience?
Are there local permits, conservation rules, or equipment requirements?

Common Species

12 km · nearby observations

Spiny starfish

Marthasterias glacialis

DeepLog2

Ballan wrasse

Labrus bergylta

DeepLog1

Crimora papillata

DeepLog1

Cuckoo wrasse

Labrus mixtus

DeepLog1

European edible sea urchin

Echinus esculentus

DeepLog1

Goldsinny-wrasse

Ctenolabrus rupestris

DeepLog1

Lined polycera sea slug

Polycera quadrilineata

DeepLog1

Orange-clubbed nudibranch

Limacia clavigera

DeepLog1

Peacock worm

Sabella pavonina

DeepLog1

Polycera kernowensis

DeepLog1

Pouting

Trisopterus luscus

DeepLog1

Prickly cockle

Acanthocardia echinata

DeepLog1

These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.

DeepLog + OBIS →

Photos