United Kingdom

Swanage Valentine Tanks

5–12 mMax Depth

boatEntry

10Species

Conditions Summary

Model forecast · local time (GMT+1)

Model conditions signal91/100

Waves

0.6 m

3.5 s

Swell

0.1 m

6.8 s

Current speed

1.5 km/h

flowing toward NE

Water temperature

17.3°C

Wind

25.6 km/h

→ N

Sea level

-0.3 m

falling

WavesWatch

SwellCalm

Current speedCalm

Planning window

23:15–23:00

Calmest model window

Forecast Overview

Sat, Oct 17Watch

Waves0.6–0.6 mCurrent speed1.3 km/h maxWater temperature17.3°C

Sun, Oct 18Watch

Waves0.6–0.6 mCurrent speed3.3 km/h maxWater temperature17.2°C

Mon, Oct 19Watch

Waves0.5–0.9 mCurrent speed3.0 km/h maxWater temperature17.0°C

TodayWatch

Waves0.3–0.5 mCurrent speed3.0 km/h maxWater temperature16.8°C

Next 72 hours

23:00

Waves: 0.6 m

Current speed: 1.3 km/h

Water temperature: 17.3°C

05:00

Waves: 0.6 m

Current speed: 2.7 km/h

Water temperature: 17.2°C

11:00

Waves: 0.6 m

Current speed: 1.0 km/h

Water temperature: 17.2°C

17:00

Waves: 0.6 m

Current speed: 1.8 km/h

Water temperature: 17.1°C

23:00

Waves: 0.6 m

Current speed: 0.3 km/h

Water temperature: 17.1°C

05:00

Waves: 0.5 m

Current speed: 0.9 km/h

Water temperature: 17.0°C

11:00

Waves: 0.8 m

Current speed: 0.8 km/h

Water temperature: 17.0°C

17:00

Waves: 0.7 m

Current speed: 0.6 km/h

Water temperature: 16.9°C

23:00

Waves: 0.5 m

Current speed: 1.6 km/h

Water temperature: 16.9°C

05:00

Waves: 0.5 m

Current speed: 0.2 km/h

Water temperature: 16.8°C

11:00

Waves: 0.5 m

Current speed: 1.9 km/h

Water temperature: 16.8°C

17:00

Waves: 0.4 m

Current speed: 0.9 km/h

Water temperature: 16.8°C

Catalog depth5–12 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-Oct

Peak month

Aug 17.5°

Jan9.1°

Feb8.3°

Mar8.2°

Apr9.3°

May11.3°

Jun13.8°

Jul16.0°

Aug17.5°

Sep17.2°

Oct15.6°

Nov13.2°

Dec10.8°

Current: mild

Typical visibility: 6 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

wrecksalt 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

Northern red anemone

Urticina felina

DeepLog2

Common limpet

Patella vulgata

DeepLog1

Dead mans fingers

Alcyonium digitatum

DeepLog1

Long-snouted seahorse

Hippocampus guttulatus

DeepLog1

Native oyster

Ostrea edulis

DeepLog1

Plum anemone

Actinia equina

DeepLog1

Pouting

Trisopterus luscus

DeepLog1

Rhizostoma octopus

DeepLog1

Sepia

Sepia officinalis

DeepLog1

Spotted cowrie

Trivia monacha

DeepLog1

Callionymus lyra

Nearby OBIS observations9

Rhodophyta

Nearby OBIS observations8

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

DeepLog + OBIS →

Photos