United Kingdom · Atlantic Europe
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Create Profile →Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.
We compare the 7-day forecast to the last 5 years of marine data for the same week at Caswell Bay. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical early July.
We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.
Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).
Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.
The best week for surf at Caswell Bay is the week of 23 November (score 3/5) with low crowds.
Small waves but still worth a paddle for keen surfers. Moderate wind adding texture to the faces. Conditions improving through the afternoon.
Heads up: rip risk elevated, and jellyfish: high.
Indicators derived from forecast data, not official warnings. Always check local lifeguard or official advice.
The air here is 69% cleaner than the average comparison city right now.
Noticeably cleaner air than a typical city. Good conditions for prolonged outdoor activity.
Not a pollutant. Ozone is naturally higher at altitude and near the coast, and lower in cities where traffic exhaust breaks it down. High readings here typically indicate clean air. Can cause short-term airway irritation during intense exercise but is not linked to the long-term health risks of particulate pollution.
Additive health score: each pollutant contributes points relative to its WHO 2021 guideline and long-term health impact (PM2.5 9, NO₂ 5, O₃ 3, PM10 2, SO₂ 1 at WHO limits). Data via Open-Meteo. City markers show live readings. Red line marks the WHO guideline. Updated 21:00
Moderate water clarity: ~4m visibility
High sediment levels, possible runoff or storm disturbance
Local knowledge and community tips for Caswell Bay
Caswell Bay is a sheltered cove on the Gower Peninsula in south Wales, tucked between limestone headlands. The bay faces south and picks up whatever swell manages to push up the Bristol Channel. It is predominantly a soft, forgiving wave that works well for beginners and improvers. The beach is golden sand with rock pools at either end. A pleasant, scenic spot that rarely offers serious surf but delivers fun small waves.
Requires a large south-westerly groundswell to wrap into the bay. A north-easterly offshore wind cleans things up. The headlands filter out most of the raw power, so you need a big swell running to get waist-to-chest-high waves in here. Best between October and March. On big storm days when Llangennith is maxing out, Caswell offers a sheltered alternative.
The middle of the bay has the gentlest slope and softest waves, ideal for beginners. The sections closer to either headland can produce slightly steeper peaks when the swell is bigger. On rare good days, a right-hander forms off the rocks on the east side.
Very safe overall. The sandy bottom is forgiving, the waves lack real power, and the bay is sheltered from wind. Rock pools at the edges can be slippery. On the rare occasion it gets above head high, currents form along the cliff edges. Swimmers and families share the beach in warmer months.
Pay car park at the top of the hill with a short walk down a steep path to the beach. Gets full in summer with beachgoers. Toilets and a small shop at the car park level.
Surf schools use Caswell as a sheltered teaching spot, so expect foam boards on any swell. Rarely crowded with actual surfers because the wave quality is limited. On the rare solid days, a few Gower locals will appear but it never gets competitive.
Caswell is a genuine fallback spot, not a destination. If the swell is big enough to work here, Langland (five minutes east) will probably be better with more defined reef peaks. However, if you are learning or want a gentle session without the crowd, this is the place. The ice cream van in the car park is a Gower institution.
Surf at Caswell Bay
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Daily scores over the last 12 months at Caswell Bay
Based on historical weekly averages
See timing scores, school holiday busyness, and lift pass pricing to find the best time to book.
View Best Time to Go →Combining historical conditions with school holiday crowd pressure to find the sweet spot.
The timing score combines two signals: historical conditions quality (how good the skiing or surfing typically is in a given week, based on 5 years of weather data) and crowd pressure (how many of this destination's feeder markets have school holidays that week).
Crowd pressure is weighted by each feeder country's share of visitors. If 40% of a resort's visitors come from France and France is on holiday, that contributes 0.40 to the crowd pressure score. Crowds can reduce the timing score by up to 35%, ensuring conditions still matter most.
Scores: 5 = great conditions with low crowds (the sweet spot). 4 = great conditions with moderate crowds, or good conditions with low crowds. 3 = average. 2 = below average conditions or very crowded. 1 = poor conditions or peak holiday chaos.
Last 31 days of logged conditions.
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