Surf Forecasts:
Rhos-On-Sea surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 10AM (local time) - 2.5ft (0.7m), 4s period, SE swell with 17 kJ wave energy.
Best Forecast Surf Conditions for Rhos-On-Sea this week:
The most powerful waves expected at Rhos-On-Sea in the next 16 days are 0.7m 4s and forecast to arrive on Wednesday (Aug 12) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Wednesday (Aug 05) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 12th Aug) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here, and I’ve gotta be straight with you – we’ve got a long stretch ahead with barely a ripple to get excited about. The picture for the next 16 days is pretty flat, with only a few tiny pulses that might be worth a look if you’re desperate.
Right off the bat, we’re looking at a big gap. From the start of the period, there’s absolutely nothing until Wednesday the 12th of August. That’s a full week of flat, calm conditions. The wind will be light and often offshore, but without any swell, it’s just a pretty lake.
The first real hope comes on Wednesday morning, August 12th, at Rhos-On-Sea (Wales). We’ll see a tiny bit of life with a small 2ft swell from the southeast, but the period is a short 4 seconds. The combined wave energy is weak, only 17. The wind is a cross-shore moderate breeze, so it’s not going to be clean. Honestly, this is more of a ripple than a ride. The water temperature is a notable 66°, which is much warmer than normal for this time of year – over 3° warmer, which is very unusual.
After that, things go quiet again. There’s a sniff of something on Friday morning, August 14th, with a tiny 1ft swell from the northwest, but the period is a pathetic 3-4 seconds. The energy is barely registering (4 and 3). The wind is offshore, so it would be clean, but there’s just no power to work with. It’s inconsistent at best – this spot rarely breaks as it is.
The rest of the window into the third week is just more of the same. We see a few more tiny pulses of 1ft on the 16th and 18th of August, but they’re weak and short-period. The wind stays mostly cross-offshore, offering clean conditions, but without any substantial swell, it’s a no-go.
There isn’t a single standout session in this entire 16-day outlook. The best you can hope for is a very small, clean wave on the 12th or 14th, but it’s for experts only, and even then, you’ll be fighting for a bump. If you’ve got a kite, the offshore winds might look more interesting than a paddle surf.
Stay patient, lads. It can’t stay this flat forever.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 19°C on Fri afternoon, min 11°C on Fri night). Winds decreasing (fresh winds from the WSW on Wed morning, calm by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat afternoon, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 5 | W 6 | WNW 6 | NW 6 | WNW 5 | NNW 4 | W 3 | WNW 4 | SW 3 | WSW 4 | WSW 5 | WSW 4 | W 4 | WNW 4 | W 4 | WNW 5 | WNW 4 | WSW 3 | W 3 | — | E 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | glassy | cross | off | cross-off | cross | glassy | cross | cross-on | cross |
High Tide | 4:04PM6.33m | 4:25AM6.46m | 5:00PM6.06m | 5:28AM6.11m | 6:10PM5.85m | 6:46AM5.91m | 7:30PM5.89m | 8:09AM6.00m | 8:47PM6.21m | 9:22AM6.33m | 9:50PM6.72m | 10:23AM6.75m | 10:44PM7.27m | ||||||||
Low Tide | 10:10AM1.15m | 10:27PM1.57m | 11:01AM1.48m | 11:26PM1.85m | 12:05PM1.78m | 00:40AM2.01m | 1:23PM1.91m | 2:06AM1.90m | 2:45PM1.76m | 3:24AM1.49m | 3:54PM1.38m | 4:29AM0.91m | 4:51PM0.93m | ||||||||
 |  |  |  |  | | | |  | | | | | |  | | | | | | | |
 | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — |
 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — |
mm | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 14 | 16 | 17 | 14 | 18 | 19 | 13 | 21 | 22 | 16 | 21 | 21 | 17 | 16 | 17 | 13 | 16 | 17 | 14 |
Feels °C | 10 | 12 | 10 | 11 | 13 | 11 | 15 | 17 | 11 | 18 | 18 | 14 | 21 | 21 | 17 | 13 | 14 | 12 | 14 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | NNW 4 | — | WNW 4 | — | WSW 4 | WSW 5 | — | — | — | — | — | — | — | W 3 | — | — |
| kJ | — | — | — | — | — | 2 | — | 2 | — | 2 | 7 | — | — | — | — | — | — | — | 1 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 6 | WNW 6 | NW 6 | WNW 5 | WSW 3 | W 3 | — | SW 3 | — | — | WSW 4 | W 4 | WNW 4 | W 4 | WNW 5 | WNW 4 | WSW 3 | — | — | E 3 |
| kJ | 100 | 154 | 138 | 111 | 40 | 7 | 1 | — | 1 | — | — | 9 | 27 | 25 | 19 | 35 | 14 | 4 | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 442 | 438 | 377 | 196 | 296 | 240 | 230 | 240 | 230 | 275 | 375 | 194 | 275 | 271 | 196 | 467 | 388 | 238 | 279 | 323 | 238 |
Best forecast wave conditions in North Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Rhos-On-Sea Surf forecast
The above surf forecast table for Rhos-On-Sea provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rhos-On-Sea can be found by selecting the local surf guide option on the grey menu. Our Rhos-On-Sea 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 (Rhos-On-Sea) 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 Rhos-On-Sea 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.
Rhos-On-Sea is 2 km (1 miles) from Colwyn Bay. If you plan a holiday in North Wales, look for hotels and other accommodation in Colwyn Bay. Colwyn Bay has rooms for a wide range of budgets as well as car hire and transport links.
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