Is Cefn Sidan good for swimming today?
Cefn Sidan has BeachFinder Score: 73/100. Use this as a planning signal only, then check local flags, lifeguards, closures and current beach conditions.
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GB-EXT - GB
Cefn Sidan
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Shared BeachFinder spot: compare live conditions, water temperature, wind, UV, waves, currents, amenities and nearby alternatives before you leave.
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Quick answer
Quick answer: Cefn Sidan today
Cefn Sidan is a BeachFinder spot in GB-EXT, GB. Today, compare water temperature 19°C, wind 19 km/h · W, uv 3.8, waves 1.4 m, water quality Check official advisories before leaving. BeachFinder Score: 73/100. Always check official flags, closures and lifeguard advice before swimming.
Water temperature
19°C
Wind
19 km/h · W
UV
3.8
Waves
1.4 m
Water quality
Check official advisories
Last updated: Sep 3, 04:45 AM local forecast timeBeachFinder Score: 73/100
Sources: Open-Meteo weather and marine forecasts, OpenStreetMap place context and BeachFinder spot data.
This is planning information, not a safety clearance. Conditions can change quickly.
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Live conditions on the site
Surfers can check wind, wave height, currents and surf cues here before opening the full BeachFinder app.
Updated: Sep 3, 04:45 AM
Water temp
19°C
Air temp
18°C
Feels like
18°C
UV index
3.8
Wind
19 km/h · W
Gust 34 km/h
Waves
1.4 m
Current
1 km/h · E
Parking
...
Shower
...
Accessible access
...
Toilets
...
Restaurants
...
Weather and marine data: Open-Meteo
Cefn Sidan
For a beach day in United Kingdom, put Cefn Sidan on a shortlist instead of treating the result as guaranteed. The right activity depends on current marine conditions and local authority instructions. The place record is persistent, but the recommendation is deliberately conditional on the newest observations. What do the stable sources establish? Surface information in the mapped record is sand. The structured place record labels the feature “beach in Carmarthenshire Wales UK.” The recorded map position is 51.69835, -4.34249, which helps distinguish this beach from similarly named places. The local fallback set is Rhossili Bay Beach at about 12.7 km and Caswell Bay Beach at about 25.9 km; their distances are useful, but wind, waves and access can change the ranking. Make the day plan only after comparing the live and official layers. Priority checks for this location include the current swell, wave period and wind effect; how to reach the entry point without assuming parking. Confirm the details before leaving and again on arrival. Make the conservative choice when evidence is incomplete, and use a current authority notice to settle any conflict. The best fallback solves the reason the first beach failed. Look for different exposure when wind or swell is the issue, and different access when the route is the problem.
About this spot
Readers considering Cefn Sidan can move from place identity to action without hiding uncertainty. The record fixes the beach within United Kingdom, while nearby options and timestamped conditions make it possible to change plans for a clear reason. The local fallback set is Rhossili Bay Beach at about 12.7 km and Caswell Bay Beach at about 25.9 km; their distances are useful, but wind, waves and access can change the ranking.
Updated 7/10/2026
Frequently asked questions
What is the water temperature at Cefn Sidan today?
19°C. Marine temperature is shown when forecast coverage is available for this location.
How windy is Cefn Sidan today?
19 km/h · W. Wind can change comfort and surface conditions, especially on exposed beaches.
What should I check before swimming at Cefn Sidan?
Check official safety flags, lifeguard advice, closures, water-quality advisories, UV, wind, waves and currents before entering the water.
Before you go
Conditions
Compare water temperature, air temperature, feels-like temperature, UV index, wind, waves and currents. Surf-focused data appears when a marine model covers the spot.
Amenities
BeachFinder checks parking, showers, toilets, accessible places and restaurants around the spot with OpenStreetMap and shows them in the counters and map.
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Other nearby spots
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Cefn Sidan
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