Surf Forecasts:
Rest Bay surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 1AM (local time) - 2.5ft (0.7m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 10PM (local time) - 6ft (1.9m), 8s period, WSW swell with 454 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1AM (local time) - 2.5ft (0.7m), 8s period with WSW swell.
Best Forecast Surf Conditions for Rest Bay this week:
The surf forecast for Rest Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 1AM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rest Bay in the next 16 days are 1.9m 8s and forecast to arrive on Thursday (Sep 10) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 12th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 1AM (Sat 12th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 10PM (Thu 10th Sep) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Rest Bay over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s coming up at Rest Bay.
To be straight with you, the next 16 days are looking pretty bleak. There’s a big ol' gap of flat or junk conditions right through from the start of the forecast right until the very end, with only one single session that even gets a nod as surfable, and that’s scraping the bottom of the barrel. It’s just not a good run for this area, but that kind of blank spell is normal for here.
The water temperature at Rest Bay is sitting at 66°, which is a whopping 5° warmer than usual for this time of year – that’s very unusual, almost like a late summer holdout.
We start off with nothing. From Tuesday 8th September right through to the morning of Wednesday 23rd September, it’s pretty much all “poor surf conditions” with scores of zero. The swell is all over the place, mostly small, short-period stuff between 0.7 ft and 5 ft but it’s all mucked up by cross-onshore or onshore winds. The combined wave energy is mostly weak to moderate (up to 367 on Tuesday afternoon), but it’s just messy and blown out. There is a brief moment on Thursday 17th September morning with a bit of 1 ft swell and glassy conditions, but it’s so small it’s not worth paddling out for.
The one and only standout, if you want to call it that, is on Wednesday 23rd September morning. We finally get a clean window with a light north wind going cross-offshore. The swell is tiny – only 0.7 ft – but the period goes up to 16 seconds, which is a very long period groundswell. The combined energy is still weak (56). The wave comment says "surfable waves but very ordinary conditions." That swell direction is from the WSW, while Rest Bay’s optimum is SW, so it’s not a perfect match. Because it’s so small and the period is super long, it might break too straight at a beach, but Rest Bay has a point element, so it could wrap in and offer a clean little wave for a longboard. Don’t expect much, but it’s the only game in town. After that, it goes back to poor conditions again.
Honestly, for this whole two-week stretch, unless you’re desperate for a paddle on that one morning, you’re better off keeping the board in the car. Small craft, maybe kites would have more fun on some of the windier, lumpier days.
Stay patient,
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Tue morning. Very mild (max 18°C on Thu morning, min 13°C on Tue night). Winds decreasing (fresh winds from the WNW on Tue afternoon, light winds from the SW by Wed night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat night. Very mild (max 17°C on Sat afternoon, min 12°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the WSW by Sat afternoon). | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | W 9 | W 7 | W 8 | WSW 8 | WSW 8 | WSW 8 | WSW 6 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 6 | W 8 | WSW 7 | WSW 9 | WSW 9 | WSW 9 | WSW 5 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 300 | 367 | 179 | 134 | 87 | 50 | 11 | 91 | 405 | 184 | 132 | 72 | 75 | 186 | 223 | 117 | 111 | 82 | 61 | 32 | 36 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-off | cross-on | on | on | cross-on | on | cross-on | cross-on | on | on |
High Tide | 5:11PM7.65m | 5:41AM7.78m | 6:04PM8.38m | 6:29AM8.41m | 6:48PM8.96m | 7:10AM8.88m | 7:28PM9.32m | 7:48AM9.13m | 8:06PM9.42m | 8:24AM9.15m | 8:41PM9.27m | 8:59AM8.95m | 9:16PM8.90m | ||||||||
Low Tide | 11:01AM1.98m | 11:35PM1.47m | 11:55AM1.31m | 00:23AM0.82m | 12:39PM0.72m | 1:04AM0.34m | 1:17PM0.31m | 1:40AM0.07m | 1:53PM0.11m | 2:13AM0.04m | 2:26PM0.13m | 2:45AM0.22m | 2:58PM0.36m | 3:16AM0.58m | |||||||
 |  |  |  | | | |  |  | | |  | |  | | | | | | | | |
 | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — |
 | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — |
mm | 2 | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | 5 | — | — | — | — | — | — |
Temp °C | 16 | 17 | 15 | 15 | 15 | 14 | 18 | 17 | 18 | 15 | 16 | 14 | 16 | 17 | 17 | 17 | 17 | 16 | 19 | 20 | 19 |
Feels °C | 9 | 9 | 9 | 10 | 11 | 11 | 14 | 13 | 15 | 12 | 12 | 11 | 11 | 12 | 12 | 15 | 15 | 15 | 19 | 21 | 19 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | — | — | W 8 | W 8 | WSW 8 | WSW 8 | W 11 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | W 8 | — | W 8 | WSW 7 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 6 |
| kJ | 300 | — | — | 134 | 33 | 50 | 11 | 2 | 405 | 184 | 132 | 72 | 64 | — | 223 | 117 | 111 | 82 | 61 | 14 | 36 |
Swell 2 Height (m) Direction Period (s) | W 10 | — | — | — | — | W 13 | W 12 | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | WSW 8 |
| kJ | 55 | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | 18 | — | — | — | — | 13 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 12 |
| kJ | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | — | W 9 | W 7 | — | WSW 8 | — | WSW 4 | WSW 6 | — | — | W 9 | — | WSW 8 | WSW 6 | WSW 8 | — | — | — | — | WSW 5 | — |
| kJ | — | 367 | 179 | — | 87 | — | 11 | 91 | — | — | 129 | — | 75 | 186 | 204 | — | — | — | — | 32 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 356 | 356 | 70 | 155 | 14 | 311 | 311 | 21 | 22 | 21 | 0 | 138 | 152 | 299 | 70 | 70 | 105 | 115 | 138 | 51 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Rest Bay Surf forecast
The above surf forecast table for Rest Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rest Bay can be found by selecting the local surf guide option on the grey menu. Our Rest Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Rest Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Rest Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Rest Bay is 1 km (1 miles) from Porthcawl. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Porthcawl. Porthcawl has rooms for a wide range of budgets as well as car hire and transport links.
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