Surf Forecasts:
Roaches Reef surf forecast from 29 Aug 2026:
- Most powerful swell: Monday 31 Aug, 7AM (local time) - 7ft (2.2m), 10s period, WSW swell with 825 kJ wave energy.
Best Forecast Surf Conditions for Roaches Reef this week:
The most powerful waves expected at Roaches Reef in the next 16 days are 2.2m 10s and forecast to arrive on Monday (Aug 31) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Mon 31st Aug) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Roaches Reef over the next 16 days.
The Lowdown
Alright, Rusty here again, same story, different numbers. Listen, Roaches Reef is a tough beat right now. The water is at 69°F, which is a solid 8°F warmer than normal for this time of year. That’s a big anomaly, so you’re swimming in a warm bath, but the surf is a different story.
The first week is a bust. From Saturday the 29th of August through the first week of September, it’s all rain showers, thunderstorms, and strong cross-onshore winds. The wave energy is weak to moderate, with numbers like 59 and 105 – nothing to get excited about. Swell heights are small, from 3ft to 6ft, but the periods are short and the wind is just ruining it. It’s lumpy and choppy, not worth paddling out.
There’s a tease on Monday the 31st of August morning with a 7ft west swell and a cross-off wind that cleans it up. The energy hits 675, moderate, with a 9-second period. But the wind is a fresh 30 km/h, and the guidance says it’s marginal. If you’re desperate, you might get a few, but it’s not the one.
The real standout, and the only time I’d point you to the water, is Monday the 7th of September. The morning is glassy – zero wind from the north-northwest – with a 5ft swell from the west-southwest and a 10-second period. The energy is 386, solid moderate, and the reef will love that longer period. The afternoon drops off with a cross-shore breeze, so get in early. That’s your window.
After that, it’s back to small, messy, and windy. The second week sees swell under 3ft, short periods, and wind howling at 40 km/h from the west. Energy numbers are low, like 17 and 19 – basically flat. Nothing to chase.
So, bottom line: first week is a write-off. Monday the 7th of September morning is the only highlight – glassy, clean, with a decent swell. The rest is a waiting game. The water’s warm, the reef will come back.
Rusty.
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun afternoon. Very mild (max 19°C on Sat afternoon, min 15°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Wed night. Very mild (max 18°C on Wed morning, min 15°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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) | SW 6 | SW 7 | WSW 9 | WSW 9 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | W 9 | WSW 8 | WSW 5 | SW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 51 | 93 | 495 | 261 | 259 | 602 | 736 | 495 | 220 | 101 | 99 | 24 | 159 | 501 | 566 | 344 | 287 | 268 | 330 | 474 | 413 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross-on | cross | cross-off | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross | cross-on |
High Tide | 8:09PM9.52m | 8:25AM9.34m | 8:42PM9.58m | 8:57AM9.36m | 9:15PM9.49m | 9:28AM9.22m | 9:48PM9.24m | 10:01AM8.93m | 10:23PM8.83m | 10:38AM8.51m | 11:04PM8.29m | 11:24AM7.96m | 00:02AM7.65m | ||||||||
Low Tide | 1:53PM1.31m | 2:12AM1.13m | 2:23PM1.21m | 2:43AM1.09m | 2:54PM1.23m | 3:14AM1.21m | 3:24PM1.39m | 3:45AM1.48m | 3:57PM1.70m | 4:20AM1.90m | 4:35PM2.16m | 5:02AM2.45m | 5:26PM2.76m | ||||||||
 |  |  | | |  | |  |  | | | |  | |  |  | | | | |  | |
 | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — |
 | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — |
mm | 8 | — | — | 3 | 10 | 7 | — | — | — | — | — | — | 2 | 3 | 8 | — | — | — | 2 | 1 | — |
Temp °C | 17 | 19 | 17 | 18 | 17 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 17 | 17 | 16 | 17 | 17 | 18 |
Feels °C | 13 | 19 | 15 | 14 | 13 | 10 | 10 | 11 | 13 | 14 | 14 | 16 | 13 | 14 | 14 | 12 | 11 | 10 | 10 | 12 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 7 | — | WSW 9 | WSW 8 | — | — | — | WSW 9 | W 9 | W 18 | WSW 8 | W 16 | — | — | SW 15 | SW 16 | W 13 | — | — | SW 14 |
| kJ | 51 | 93 | — | 261 | 216 | — | — | — | 220 | 101 | 6 | 12 | 5 | — | — | 9 | 10 | 56 | — | — | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 16 | — | — | — | — | W 16 | W 13 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | 5 | 32 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | WSW 7 | WSW 9 | WSW 9 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | — | — | WSW 8 | WSW 5 | SW 6 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | W 8 |
| kJ | 11 | 37 | 495 | 186 | 259 | 602 | 736 | 495 | — | — | 99 | 24 | 159 | 501 | 566 | 344 | 287 | 268 | 330 | 474 | 413 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 218 | 16 | 47 | 66 | 43 | 144 | 117 | 144 | 0 | 131 | 131 | 180 | 415 | 308 | 319 | 182 | 359 | 359 | 366 | 144 | 137 |
Best forecast wave conditions in Wales - Gower | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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