Carmarthan

United Kingdom

Carmarthan

25–40 mMax Depth
boatEntry
12Species

Conditions Summary

Model forecast · local time (GMT+1)

Model conditions signal62/100
Waves
1.7 m
8.3 s
Swell
1.5 m
7.0 s
Current speed
0.4 km/h
flowing toward NW
Water temperature
16.5°C
Wind
17.6 km/h
→ SW
Sea level
0.9 m
falling
WavesChallenging
SwellChallenging
Current speedCalm

Forecast Overview

Wed, Oct 14Challenging
Waves1.7–1.8 mCurrent speed2.3 km/h maxWater temperature16.5°C
Thu, Oct 15Challenging
Waves1.9–2.4 mCurrent speed1.9 km/h maxWater temperature16.5°C
Fri, Oct 16Challenging
Waves1.6–2.3 mCurrent speed1.5 km/h maxWater temperature16.3°C
Sat, Oct 17Challenging
Waves1.3–1.6 mCurrent speed1.2 km/h maxWater temperature16.1°C
Next 72 hours
09:00
Waves: 1.7 m
Current speed: 0.4 km/h
Water temperature: 16.5°C
15:00
Waves: 1.7 m
Current speed: 0.3 km/h
Water temperature: 16.5°C
21:00
Waves: 1.8 m
Current speed: 1.0 km/h
Water temperature: 16.5°C
03:00
Waves: 1.9 m
Current speed: 0.3 km/h
Water temperature: 16.5°C
09:00
Waves: 2.1 m
Current speed: 0.9 km/h
Water temperature: 16.4°C
15:00
Waves: 2.2 m
Current speed: 0.6 km/h
Water temperature: 16.5°C
21:00
Waves: 2.3 m
Current speed: 1.0 km/h
Water temperature: 16.5°C
03:00
Waves: 2.3 m
Current speed: 1.0 km/h
Water temperature: 16.4°C
09:00
Waves: 2.1 m
Current speed: 0.8 km/h
Water temperature: 16.3°C
15:00
Waves: 1.9 m
Current speed: 1.3 km/h
Water temperature: 16.3°C
21:00
Waves: 1.7 m
Current speed: 0.5 km/h
Water temperature: 16.2°C
03:00
Waves: 1.5 m
Current speed: 0.9 km/h
Water temperature: 16.2°C
Catalog depth25–40 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 16.7°

Jan10.4°
Feb9.8°
Mar9.5°
Apr10.2°
May11.9°
Jun14.2°
Jul16.1°
Aug16.7°
Sep15.8°
Oct14.5°
Nov13.0°
Dec11.5°
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.

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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
Otter
Lutra lutra
DeepLog2
Atlantic horse mackerel
Trachurus trachurus
DeepLog1
Cuckoo wrasse
Labrus mixtus
DeepLog1
European eel
Anguilla anguilla
DeepLog1
Facelina auriculata
DeepLog1
Jewel anemone
Corynactis viridis
DeepLog1
Nursehound
Scyliorhinus stellaris
DeepLog1
Plum anemone
Actinia equina
DeepLog1
Purple jellyfish
Pelagia noctiluca
DeepLog1
Snakelocks anemone
Anemonia viridis
DeepLog1
Spiny starfish
Marthasterias glacialis
DeepLog1
Topknot
Zeugopterus punctatus
DeepLog1
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Carmarthan photo 2
Carmarthan photo 3
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