Thumb Rock

Ireland

Thumb Rock

5–30 mMax Depth
boatEntry
34Species

Conditions Summary

Model forecast · local time (GMT+1)

Planning signal71/100
Waves
1.1 m
6.6 s
Swell
0.9 m
6.9 s
Current speed
0.5 km/h
flowing toward NE
Water temperature
16.4°C
Wind
18.0 km/h
→ S
Sea level
0.2 m
falling
WavesChallenging
SwellWatch
Current speedCalm

Forecast Overview

TodayChallenging
Waves1.1–1.4 mCurrent speed0.8 km/h maxWater temperature16.5°C
TomorrowChallenging
Waves1.5–2.9 mCurrent speed1.0 km/h maxWater temperature16.4°C
Tue, Sep 8Challenging
Waves2.3–3.4 mCurrent speed1.0 km/h maxWater temperature16.1°C
Wed, Sep 9Challenging
Waves2.2–2.2 mCurrent speed0.3 km/h maxWater temperature16.0°C
Next 72 hours
02:00
Waves: 1.1 m
Current speed: 0.5 km/h
Water temperature: 16.4°C
08:00
Waves: 1.2 m
Current speed: 0.5 km/h
Water temperature: 16.4°C
14:00
Waves: 1.2 m
Current speed: 0.6 km/h
Water temperature: 16.5°C
20:00
Waves: 1.3 m
Current speed: 0.6 km/h
Water temperature: 16.6°C
02:00
Waves: 1.6 m
Current speed: 0.6 km/h
Water temperature: 16.5°C
08:00
Waves: 2.0 m
Current speed: 0.4 km/h
Water temperature: 16.4°C
14:00
Waves: 2.3 m
Current speed: 0.8 km/h
Water temperature: 16.4°C
20:00
Waves: 2.9 m
Current speed: 0.8 km/h
Water temperature: 16.4°C
02:00
Waves: 3.0 m
Current speed: 1.0 km/h
Water temperature: 16.2°C
08:00
Waves: 3.4 m
Current speed: 0.8 km/h
Water temperature: 16.1°C
14:00
Waves: 3.0 m
Current speed: 0.8 km/h
Water temperature: 16.0°C
20:00
Waves: 2.6 m
Current speed: 0.2 km/h
Water temperature: 16.1°C
Catalog depth5–30 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

Apr-Oct

Peak month

Aug 15.5°

Jan8.7°
Feb8.1°
Mar8.2°
Apr9.3°
May11.1°
Jun13.3°
Jul14.9°
Aug15.5°
Sep14.9°
Oct13.3°
Nov11.6°
Dec10.0°
Current: mild
Typical visibility: 7.5 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

wallsalt 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
Red-banded jellyfish
Chrysaora hysoscella
DeepLog18
Banded donax
Donax vittatus
DeepLog7
Common porpoise
Phocoena phocoena
DeepLog7
Long-beaked common dolphin
Delphinus delphis
DeepLog5
Common edible cockle
Cerastoderma edule
DeepLog4
Pacific bottlenose dolphin
Tursiops truncatus
DeepLog4
Marzupla
Orcinus orca
DeepLog3
Red starfish
Asterias rubens
DeepLog3
Rorqual aliblanco
Balaenoptera acutorostrata
DeepLog3
Small white heart urchin
Echinocardium cordatum
DeepLog3
Blue mussel
Mytilus edulis
DeepLog2
Bunch whale
Megaptera novaeangliae
DeepLog2
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Thumb Rock photo 2
Thumb Rock photo 3
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