United Kingdom

Old Harry Rocks

5–20 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT+1)

Planning signal90/100

Waves

0.3 m

5.0 s

Swell

0.2 m

3.5 s

Current speed

1.8 km/h

flowing toward SW

Water temperature

17.3°C

Wind

7.6 km/h

→ W

Sea level

-0.7 m

rising

WavesCalm

SwellCalm

Current speedWatch

Planning window

23:00–00:00

Calmest model window

Forecast Overview

TodayWatch

Waves0.3–0.3 mCurrent speed1.8 km/h maxWater temperature17.3°C

TomorrowCalm

Waves0.2–0.4 mCurrent speed3.6 km/h maxWater temperature17.4°C

Mon, Sep 7Watch

Waves0.3–0.9 mCurrent speed3.9 km/h maxWater temperature17.7°C

Tue, Sep 8Watch

Waves0.8–0.9 mCurrent speed4.1 km/h maxWater temperature17.3°C

Next 72 hours

23:00

Waves: 0.3 m

Current speed: 1.8 km/h

Water temperature: 17.3°C

05:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 17.1°C

11:00

Waves: 0.4 m

Current speed: 1.9 km/h

Water temperature: 17.2°C

17:00

Waves: 0.4 m

Current speed: 0.9 km/h

Water temperature: 17.6°C

23:00

Waves: 0.4 m

Current speed: 3.2 km/h

Water temperature: 17.6°C

05:00

Waves: 0.5 m

Current speed: 1.9 km/h

Water temperature: 17.6°C

11:00

Waves: 0.6 m

Current speed: 3.3 km/h

Water temperature: 17.8°C

17:00

Waves: 0.9 m

Current speed: 2.8 km/h

Water temperature: 17.7°C

23:00

Waves: 0.9 m

Current speed: 3.9 km/h

Water temperature: 17.5°C

05:00

Waves: 0.9 m

Current speed: 3.0 km/h

Water temperature: 17.4°C

11:00

Waves: 0.8 m

Current speed: 2.9 km/h

Water temperature: 17.4°C

17:00

Waves: 0.9 m

Current speed: 3.8 km/h

Water temperature: 17.3°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-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: moderate

Typical visibility: 8 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

Loading…

Dive Types

reefsalt Waterintermediate Difficulty

Data source & current conditions

Profile facts were imported from DeepLog. ScubaProof adds nearby-center links and presents the recorded fields without treating missing data as confirmation. Conditions, access, permits, and site suitability can change; confirm them with a local operator before diving.

View the source profile →

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

Crimora papillata

DeepLog1

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

DeepLog + OBIS →