Surf Forecasts:
Roaches Reef surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 3ft (0.9m), 7s period, W swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 1PM (local time) - 4.5ft (1.3m), 7s period, WSW swell with 181 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 10PM (local time) - 3ft (0.9m), 7s period with W swell.
Best Forecast Surf Conditions for Roaches Reef this week:
The surf forecast for Roaches Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 10PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.6m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Roaches Reef in the next 16 days are 1.3m 7s and forecast to arrive on Thursday (Aug 20) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Aug 24) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 20th Aug) | 3ft (0.9m) 7s |
| Best Surf | 10PM (Thu 20th Aug) | 3ft (0.9m) 7s |
| Most Powerful | 1PM (Thu 20th Aug) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Roaches Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what Roaches Reef has cooking for the next couple of weeks.
First off, it’s a slow start. There’s a long dry spell from now all the way until the morning of Saturday, August 29th, where the surf is just not happening. Tiny, weak, and blown out is the story. The swell is flat or very small, and the wind, while sometimes clean, can’t make up for the lack of waves. It’s a tough stretch with nothing to ride.
The first real chance to get wet comes Saturday morning, August 29th. We get a 1.8m swell out of the WSW, but the period is short, only 6 seconds. The big news here is the wind – dead calm, glassy conditions. The combined energy is 249, a moderate dose, so you’ll pick off a few weak but clean runners. The water is sitting at 70°, which is over 5° warmer than normal for this time of year. That’s very unusual, so it’s like summer has stuck around.
By Saturday afternoon, it’s a different story. The swell jumps to 3.0m, which is too big for this reef. The energy rockets to 1458, which is very strong, but that size with a strong cross-wind makes the place a mess. This is experts-only territory that afternoon. Beginners, don’t even think about it.
Sunday the 30th is still big, around 2.4m, but the cross-onshore wind ruins any chance of quality. You get a nice clean window on Friday morning, September 4th, with a 1.6m WSW swell and a gentle offshore breeze from the NNW. That’s a clean, fun-sized morning for intermediates, with 352 moderate energy.
The standouts here are Saturday morning August 29th for those rare glassy conditions, and Friday morning September 4th for the clean offshore lines. Most of the two weeks is a write-off, but those two windows are worth circling.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Very mild (max 19°C on Sat afternoon, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 25°C on Mon afternoon, min 15°C on Sun morning). Winds increasing (calm on Sun morning, strong winds from the ESE by Tue morning). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 7 | W 7 | WSW 9 | WSW 8 | WSW 6 | WSW 8 | WSW 10 | WSW 10 | WSW 9 | W 9 | W 9 | WSW 9 | WSW 9 | E 4 | E 4 | SW 13 | W 8 | W 8 | W 9 | SW 6 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 220 | 171 | 106 | 54 | 13 | 14 | 18 | 18 | 16 | 8 | 8 | 17 | 8 | 12 | 27 | 7 | 2 | 5 | 13 | 39 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | cross-off | glassy | cross-off | cross-off | glassy | cross | cross-off | cross | cross | cross | cross | cross-on | cross | on | cross | cross-on |
High Tide | 11:51AM7.51m | 00:13AM7.29m | 12:49PM7.00m | 1:23AM6.79m | 2:19PM6.75m | 2:58AM6.69m | 3:48PM7.01m | 4:21AM7.06m | 4:55PM7.57m | 5:22AM7.63m | 5:45PM8.16m | 6:07AM8.18m | 6:26PM8.66m | ||||||||
Low Tide | 5:52PM3.08m | 6:17AM3.42m | 7:01PM3.61m | 7:43AM3.84m | 8:36PM3.79m | 9:21AM3.79m | 10:00PM3.49m | 10:37AM3.32m | 11:04PM2.94m | 11:31AM2.75m | 11:52PM2.38m | 12:13PM2.23m | 00:32AM1.92m | ||||||||
 | |  |  | | |  | | | | | | | |  | | |  |  | | | |
 | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 3 | 1 | 2 |
Temp °C | 17 | 18 | 15 | 17 | 17 | 15 | 17 | 19 | 15 | 18 | 21 | 19 | 22 | 25 | 20 | 23 | 24 | 19 | 19 | 20 | 17 |
Feels °C | 13 | 14 | 11 | 15 | 13 | 12 | 15 | 15 | 11 | 16 | 18 | 16 | 18 | 21 | 14 | 18 | 20 | 18 | 19 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | SW 14 | WSW 9 | WSW 8 | WSW 6 | WSW 8 | WSW 10 | WSW 10 | WSW 9 | W 9 | W 9 | WSW 9 | WSW 9 | W 9 | W 9 | W 8 | W 8 | SW 3 | W 9 | SW 6 | W 8 |
| kJ | 220 | 8 | 106 | 54 | 12 | 14 | 18 | 18 | 16 | 6 | 6 | 17 | 8 | 6 | 6 | 1 | 1 | 1 | 13 | 39 | 29 |
Swell 2 Height (m) Direction Period (s) | SW 15 | W 14 | SW 14 | NW 4 | WSW 8 | W 5 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | W 10 | SW 9 | SW 13 | SW 13 | — | W 8 | SW 7 | W 8 | SW 7 |
| kJ | 8 | 4 | 8 | 1 | 13 | 5 | 9 | 8 | 8 | 8 | 8 | 8 | 2 | 3 | 7 | 7 | — | 5 | 2 | 12 | 18 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 14 | SW 13 | SW 13 | SW 13 | NW 5 | — | — | — | — | — | SW 14 | SW 14 | W 8 | SW 8 | SW 8 | SW 8 | W 13 | W 12 | — |
| kJ | — | — | 8 | 7 | 7 | 7 | 1 | — | — | — | — | — | 8 | 7 | 1 | 3 | 2 | 2 | 3 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | W 7 | NNW 4 | NNW 4 | WNW 3 | — | — | — | — | — | — | — | E 3 | E 4 | E 4 | E 3 | — | — | SW 4 | — | — |
| kJ | — | 171 | 7 | 1 | 1 | — | — | — | — | — | — | — | 4 | 12 | 27 | 3 | — | — | 12 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 644 | 0 | 4 | 138 | 10 | 49 | 138 | 17 | 187 | 187 | 69 | 391 | 393 | 392 | 323 | 155 | 83 | 253 | 10 | 22 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Roaches Reef Surf forecast
The above surf forecast table for Roaches Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Roaches Reef can be found by selecting the local surf guide option on the grey menu. Our Roaches Reef 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 (Roaches Reef) 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 Roaches Reef 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.
Roaches Reef is 11 km (7 miles) from Swansea. If you plan a holiday in Wales - Gower, look for hotels and other accommodation in Swansea. Swansea has rooms for a wide range of budgets as well as car hire and transport links.
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