Surf Forecasts:
Rest Bay surf forecast from 25 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 7.5ft (2.3m), 9s period, WSW swell with 826 kJ wave energy.
Best Forecast Surf Conditions for Rest Bay this week:
The most powerful waves expected at Rest Bay in the next 16 days are 2.3m 9s and forecast to arrive on Tuesday (Sep 01) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Aug 25) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Tue 1st Sep) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Rest Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at the next 16 days. Let's be real, this stretch is a tough one for Rest Bay. It's a beach and point setup, pretty exposed to the southwest, but the wind and swell just aren't lining up to give us anything rideable. With the water temp sitting at 68° coming in a very unusual 7° warmer than normal for this time of year, you might be tempted to get in for a dip, but not for a surf.
We're looking at a long, dry spell. From Tuesday the 25th right through to the end of August, it's a no-go. The swell is barely a ripple, with the combined energy of all swells directed here hitting tiny numbers like 4 and 13. Even when a little 1 ft swell shows up on Wednesday afternoon, the period is a short 8 seconds, and the wind is all wrong. It's just poor surf conditions across the board.
Into the first week of September, things get a bit more active, but not in a good way. The swell builds, but it's all onshore wind. You'll see 6 ft on Saturday the 29th with a strong 22 mph onshore wind (combined energy of 234), and it gets worse. By Monday the 31st, we’ve got a 6 ft swell and a 25 mph cross-onshore making a mess of things (combined energy of 761). This pattern continues right through the first week of September. For a beach and point setup with this much wind and chop, this is honestly looking more interesting for kite surfing than paddle surfing.
There is a moment in the second week that catches the eye. On Monday the 7th of September, we finally see a change. The morning brings a 6 ft swell from the WSW with a clean, cross-offshore breeze from the NNE at 19 mph. The combined energy of all swells is a solid 655. That's a big chunk of energy, and with the wind finally cooperating, the surf should be clean and powerful. But keep in mind, at 6 ft it's pushing out of beginner territory, and the period is a short 8 seconds, so it won't have the punch of a groundswell. The clear skies and clean conditions will be a welcome sight. The afternoon hangs in there with a 7 ft swell from the west, but the wind goes cross-shore, so the morning is the window.
After that, things drop off again. Tuesday the 8th is tiny, and Wednesday the 9th brings up another 5 ft swell with a longer 10-second period (combined energy of 544), but the wind is cross-onshore, making it choppy.
So, the honest truth is there's only one real standout in this whole 16-day outlook. If you want to get wet, you're waiting for Monday morning, the 7th of September. It's a long way out, so the forecast could shift, but right now that's the one clean, solid window. Otherwise, the rest of the stretch is a write-off.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Warm (max 26°C on Tue afternoon, min 16°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri night. Very mild (max 19°C on Fri morning, min 14°C on Sun night). Winds increasing (light winds from the WNW on Fri morning, strong winds from the NW by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | W 13 | W 10 | W 10 | WSW 9 | W 8 | WSW 8 | WSW 7 | SW 4 | WSW 7 | SW 8 | SW 8 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | W 9 | WSW 7 | W 8 | WSW 8 | WSW 7 |
Wave Graph | |||||||||||||||||||||
3 | 3 | 8 | 8 | 12 | 6 | 5 | 5 | 48 | 57 | 28 | 35 | 234 | 376 | 422 | 243 | 158 | 261 | 428 | 266 | 178 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | on | cross-on | on | cross-on |
High Tide | 5:53PM7.08m | 6:13AM7.20m | 6:31PM7.70m | 6:49AM7.76m | 7:05PM8.26m | 7:22AM8.24m | 7:38PM8.71m | 7:55AM8.61m | 8:11PM9.00m | 8:29AM8.84m | 8:45PM9.12m | 9:03AM8.89m | 9:20PM9.04m | ||||||||
Low Tide | 11:43AM2.36m | 00:08AM2.02m | 12:22PM1.78m | 00:45AM1.45m | 12:57PM1.25m | 1:17AM0.97m | 1:28PM0.82m | 1:48AM0.59m | 1:59PM0.51m | 2:18AM0.36m | 2:29PM0.35m | 2:48AM0.29m | 3:00PM0.35m | 3:19AM0.40m | |||||||
6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | |
— | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — | — | 8:06 | — | — | 8:04 | — | |
mm | — | — | — | — | — | 2 | 2 | — | — | — | — | 5 | 1 | — | — | 1 | 4 | 4 | — | 1 | — |
Temp °C | 23 | 26 | 20 | 20 | 23 | 19 | 19 | 19 | 17 | 19 | 18 | 17 | 19 | 18 | 17 | 19 | 19 | 16 | 16 | 17 | 17 |
Feels °C | 19 | 22 | 20 | 19 | 21 | 19 | 18 | 15 | 17 | 18 | 16 | 15 | 13 | 13 | 12 | 16 | 15 | 9 | 8 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 10 | WSW 9 | W 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | SW 8 | W 8 | — | — | — | WSW 9 | W 9 | — | W 8 | — | W 8 |
1 | 1 | 8 | 8 | 12 | 6 | 5 | 5 | 48 | 20 | 28 | 1 | — | — | — | 243 | 158 | — | 428 | — | 149 | |
Swell 2 Height (m) Direction Period (s) | W 13 | W 10 | SW 8 | SW 8 | S 8 | — | — | — | W 7 | W 8 | W 8 | SW 7 | — | — | — | — | — | — | — | — | — |
3 | 2 | 3 | 2 | 1 | — | — | — | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | SW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 3 | E 3 | SSE 3 | — | — | — | — | SW 4 | — | SW 8 | WSW 4 | WSW 5 | WSW 7 | WSW 7 | WSW 8 | — | WSW 8 | WSW 7 | WSW 8 | WSW 8 | WSW 7 |
4 | 1 | 1 | — | — | — | — | 3 | — | 57 | 12 | 35 | 234 | 376 | 422 | — | 137 | 261 | 333 | 266 | 178 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 140 | 90 | 54 | 90 | 90 | 394 | 379 | 138 | 124 | 126 | 40 | 311 | 224 | 362 | 137 | 70 | 235 | 773 | 451 | 496 | 30 |
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.











