Surf Forecasts:
Rest Bay surf forecast from 16 Sep 2026:
- Best quality surf: Tuesday 22 Sep, 10AM (local time) - 1.5ft (0.4m), 12s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 1AM (local time) - 6ft (1.8m), 8s period, WSW swell with 358 kJ wave energy.
- Next surfable swell (1★+): Tuesday 22 Sep, 10AM (local time) - 1.5ft (0.4m), 12s 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 Tuesday (Sep 22) at 10AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.1m and 20s. 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 1.8m 8s and forecast to arrive on Saturday (Sep 19) 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+) | 10AM (Tue 22nd Sep) | 1.5ft (0.4m) 12s |
| Best Surf | 10AM (Tue 22nd Sep) | 1.5ft (0.4m) 12s |
| Most Powerful | 1AM (Sat 19th Sep) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Rest Bay over the next 16 days.
The Lowdown
Right then, let me tell you what’s what for the next couple of weeks around here. I’ve looked over the charts and, truth be told, we’re in for a bit of a flat spell. There’s no proper swell on the cards for a good long while, so don’t get too excited just yet.
The first few days are a write-off. Wednesday the 16th through to Monday the 21st of September, that’s a solid 6-day stretch where the conditions are just poor. We’ve got some cross-onshore wind and messy, choppy water, with wave heights barely pushing 1ft to 4ft. It’s not worth paddling out.
Things start to look a little better on Tuesday the 22nd of September morning. We get a small, clean bump with a 1ft swell from the WSW, period hanging around 12 seconds. The wind swings around to a light cross-offshore, and the water smooths out nicely. It’s still tiny, but for a quiet, fun session on a longboard, it could be alright. The combined swell energy is weak (64) but it’s the best we’ll see for a bit.
Then, from Wednesday the 23rd to Monday the 28th, we’re back to poor conditions. The swell drops right off to 0.7ft to 1ft, with the wind mostly from the east. It’s clean, but there’s just no wave energy to work with. The combined energy is very low (6 to 56).
We do get a little spike of energy on the 29th and 30th of September. On Tuesday the 29th afternoon, the swell pushes up to 5ft from the WSW with a period of 9 seconds, and the combined energy jumps to a moderate 317. The wind is cross-offshore and clean. This gives us a bit of a window, but the overall quality is still marked as poor surf conditions. Then on Wednesday the 30th, we’ve got a 3ft swell from the WSW with fresh offshore wind from the ENE. The conditions are clean and the combined energy is 120. It’s surfable but nothing special.
Let's be straight with each other. The only spot we’re looking at is Rest Bay. It’s a beach and point setup that’s fairly consistent, but with a solid cross-on or onshore wind for the first week, it’s going to be a mess. When the wind finally cleans up in the second week, the swell just isn’t there. There’s no standout session in this whole 16-day window. It’s a long, flat run for the most part, which is a real kick in the teeth. Hang in there, the forecasts can always change.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Very mild (max 17°C on Fri night, min 14°C on Thu morning). Winds increasing (light winds from the NW on Wed morning, strong winds from the WSW by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Warm (max 21°C on Mon afternoon, min 15°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Mon morning). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 10 | W 10 | WSW 5 | W 7 | WSW 7 | W 7 | W 7 | WSW 6 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 9 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 12 | W 12 | WSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 230 | 212 | 81 | 233 | 208 | 166 | 134 | 141 | 358 | 294 | 273 | 125 | 45 | 61 | 29 | 16 | 15 | 9 | 49 | 70 | 130 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | cross | glassy | glassy | off | cross-off | glassy | off |
High Tide | 10:05AM8.05m | 10:23PM7.72m | 10:39AM7.43m | 10:59PM7.03m | 11:18AM6.78m | 11:43PM6.35m | 12:10PM6.16m | 00:48AM5.78m | 1:33PM5.74m | 2:32AM5.58m | 3:22PM5.85m | 4:05AM5.93m | 4:34PM6.39m | ||||||||
Low Tide | 4:03PM1.29m | 4:19AM1.68m | 4:39PM1.92m | 4:56AM2.31m | 5:21PM2.57m | 5:44AM2.93m | 6:24PM3.16m | 7:03AM3.41m | 8:09PM3.44m | 8:58AM3.43m | 9:52PM3.17m | 10:21AM2.98m | 10:54PM2.59m | ||||||||
 | |  | | |  |  |  |  | |  | |  | |  | | | | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:28 | — | — | 7:25 | — | — | 7:22 | — | — | 7:21 | — | — | 7:19 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | — | 4 | — | — | — | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 18 | 21 | 21 | 20 | 23 | 23 |
Feels °C | 12 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 12 | 12 | 14 | 14 | 16 | 14 | 15 | 18 | 21 | 21 | 19 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | — | W 10 | — | — | W 7 | W 7 | — | W 12 | W 15 | — | WSW 7 | WSW 7 | WSW 9 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 12 | W 12 | W 11 |
| kJ | 230 | — | 52 | — | — | 166 | 134 | — | 3 | 5 | — | 125 | 45 | 61 | 29 | 16 | 15 | 9 | 49 | 70 | 57 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 9 | — | — | — | — | — | W 14 | WSW 9 | — | — | — | — | W 13 | SW 20 | WSW 17 | WSW 15 |
| kJ | — | — | — | — | — | 63 | — | — | — | — | — | 4 | 28 | — | — | — | — | 3 | 15 | 57 | 130 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | W 10 | WSW 5 | W 7 | WSW 7 | — | WSW 7 | WSW 6 | WSW 8 | WSW 7 | WSW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 212 | 81 | 233 | 208 | — | 121 | 141 | 358 | 294 | 273 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 203 | 311 | 311 | 356 | 30 | 311 | 362 | 311 | 298 | 138 | 70 | 22 | 138 | 34 | 54 | 78 | 90 | 0 | 0 | 0 |
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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