Surf Forecasts:
Rest Bay surf forecast from 6 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 6ft (1.8m), 12s period, WSW swell with 907 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 1.8m 12s and forecast to arrive on Tuesday (Sep 08) at 1AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 8th Sep) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Rest Bay over the next 16 days.
The Lowdown
Right folks, Rusty here. I’ve been staring at the charts for Rest Bay... and it’s a tough one. Honestly, looking at the full 16-day window, there’s not a single day I’d tell you to drop everything and paddle out. The whole period is pretty much a write-off for decent surf. Every single record in the forecast is marked as "poor surf conditions," which is a real bummer for an area that’s usually fairly consistent.
So, let’s just lay it out. The forecast starts with some small, weak energy on Sunday the 6th of September, with a tiny 2ft swell from the west-southwest and a short period of 6 seconds. The combined energy is a measly 32 (weak), and it’s already a cross-shore wind. The water temp is a very unusual 67°, which is a massive 6° warmer than average for this time of year.
Monday the 7th sees a bit more size, with a 4ft to 5ft swell from the west-southwest and west, but the period jumps to 14 seconds on Monday morning. That’s a long-period groundswell, but it comes with a cross-onshore and then onshore wind, making it choppy and messy. The energy reading on Monday afternoon is a strong 1296, but it’s all for nothing with the wind. This pattern just keeps going.
The only sliver of something that looks clean is on the morning of Sunday the 13th of September. We’ve got glassy conditions with a light southerly breeze, but the swell is only 2ft at 7 seconds from the west-southwest, with a combined energy of just 51 (weak). It’s clean, but it’s barely surfable. That’s the best of a bad lot, and it’s still not worth a special trip.
Later in the second week, around Wednesday the 16th and Thursday the 17th, the swell gets bigger—7ft to 8ft from the west-southwest. But the wind is onshore or cross-onshore, and the period is short (8-9 seconds). The energy is strong (615 to 864), but it’s going to be a lumpy, blown-out mess. By Friday the 18th, we see another 8ft swell with 965 energy, but again, the wind is onshore.
For the whole of the second week, the surf is inconsistent at best, with small, weak swells and poor wind. The outlook is grim. There are no true standouts, no days where the stars align. It’s just a long stretch of poor conditions. I’m not one to sugarcoat it. This is a blank run, and we’ll just have to hope the forecasts change.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Warm (max 24°C on Sun afternoon, min 13°C on Mon night). Winds increasing (light winds from the WSW on Sun afternoon, fresh winds from the WSW by Mon night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 19°C on Sat morning, min 14°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 6 | WSW 6 | WSW 14 | W 13 | WSW 12 | WSW 8 | W 9 | W 7 | W 7 | W 7 | WSW 8 | WSW 5 | WSW 7 | WSW 9 | WSW 9 | W 9 | WSW 8 | SW 8 | WSW 6 | WSW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 31 | 34 | 633 | 653 | 907 | 286 | 393 | 254 | 186 | 43 | 50 | 49 | 186 | 308 | 206 | 158 | 70 | 91 | 127 | 102 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 3:24AM6.57m | 4:04PM6.95m | 4:43AM7.10m | 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 | ||||||||
Low Tide | 8:57PM2.62m | 9:43AM2.57m | 10:31PM2.15m | 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 | |||||||
 |  | |  |  |  | | | | |  | |  |  | | |  | | | | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — |
 | 7:51 | — | — | 7:49 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — |
mm | — | — | — | — | 10 | — | — | — | — | — | 1 | — | 1 | 1 | — | — | — | — | 2 | — |
Temp °C | 24 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 15 | 15 | 16 | 18 | 17 | 18 | 18 | 16 | 19 | 19 | 18 |
Feels °C | 21 | 18 | 12 | 13 | 11 | 9 | 8 | 9 | 12 | 11 | 13 | 11 | 14 | 14 | 15 | 15 | 15 | 13 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | WSW 6 | WSW 14 | W 13 | — | — | — | — | W 8 | WSW 8 | WSW 8 | WSW 8 | W 11 | W 9 | WSW 9 | — | WSW 8 | W 8 | W 16 | WSW 7 |
| kJ | 31 | 34 | 633 | 653 | — | — | — | — | 153 | 37 | 50 | 11 | 2 | 281 | 206 | — | 70 | 48 | 5 | 102 |
Swell 2 Height (m) Direction Period (s) | — | WSW 17 | — | — | — | — | — | — | — | — | W 13 | W 12 | — | — | — | — | — | — | — | W 16 |
| kJ | — | 30 | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 13 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | — | — | WSW 13 | WSW 12 | WSW 8 | W 9 | W 7 | W 7 | W 7 | — | WSW 5 | WSW 7 | WSW 9 | — | W 9 | — | SW 8 | WSW 6 | — |
| kJ | 1 | — | — | 643 | 907 | 286 | 393 | 254 | 186 | 43 | — | 49 | 186 | 308 | — | 158 | — | 91 | 127 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 188 | 126 | 30 | 137 | 138 | 142 | 413 | 356 | 30 | 155 | 105 | 445 | 298 | 137 | 21 | 70 | 22 | 362 | 311 | 137 |
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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