Surf Forecasts:
Rhos-On-Sea surf forecast from 27 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 1AM (local time) - 2.5ft (0.8m), 4s period, NW swell with 26 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 0.8m 4s and forecast to arrive on Sunday (Aug 30) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Tuesday (Sep 01) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 30th Aug) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at the charts for Rhos-On-Sea. I’ll be straight with you – this one’s a tough read. We’ve got a 16-day window, but the first real bit of swell to get excited about doesn’t show up until the 7th of September. That’s a long gap of nearly a week and a half with basically nothing worth paddling out for.
For the first week, from the 26th of August right through to the 6th of September, the surf is flat or close to it. We’re seeing tiny, crumbly energy – mostly under 2 ft – with periods so short they’re barely a ripple. The last few days of August and the start of September have some clean, glassy conditions, especially on the 2nd of September afternoon when the wind goes dead calm and it’s glassy, but there’s only 0.7 ft of swell. It’s a cruel tease.
The water temperature is a real standout for this place. It’s sitting at 66°, which is a whopping 6° warmer than normal for this time of year. That’s very unusual, so you’ll be in for a warm one if you do get wet.
Now, let’s talk about the only real glimmer of hope. The morning of Monday the 7th of September. We’ve got a NW swell pushing in at 2 ft with a period of 4 seconds. The energy is weak, only registering 15, so it’s not going to be a world-beater. But the wind is light and cross-offshore from the south, which means it’ll be clean. For a point break like Rhos-On-Sea, which is inconsistent and only "fairly exposed" to the NW, this is actually the best we’ve got. The 9th of September also shows a bit more size, with 4 ft from the NNW, but that’s accompanied by a strong breeze from the west at 25 mph, so it’ll be a choppy, messy mess.
Honestly, if you’re desperate for a paddle, the 7th of September morning is your pick. It’s clean, small, and for the experts who know the bank, you might snag a few. But for the rest of the window, the setup looks more interesting for a kite surfer than a paddle surfer, with that strong cross-offshore wind on the 9th and 10th.
Stay patient, lads. The forecasts can change, but right now, it’s a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Thu afternoon. Warm (max 21°C on Wed afternoon, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Sat afternoon. Very mild (max 18°C on Sun morning, min 12°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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) | ENE 3 | E 4 | ENE 4 | ENE 4 | — | WSW 3 | WNW 2 | NW 4 | NW 4 | NNW 5 | NW 4 | NW 4 | NNW 4 | SW 2 | WNW 4 | WNW 5 | W 5 | W 6 | WNW 6 | WNW 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 6 | 9 | 8 | 0 | 0 | 0 | 0 | 1 | 5 | 2 | 26 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 11:01PM6.75m | 11:22AM6.54m | 11:35PM7.15m | 11:55AM6.86m | 00:07AM7.46m | 12:27PM7.11m | 00:39AM7.65m | 1:00PM7.25m | 1:13AM7.70m | 1:34PM7.27m | 1:49AM7.60m | 2:10PM7.16m | 2:27AM7.34m | |||||||
Low Tide | 5:02PM1.39m | 5:29AM0.97m | 5:38PM1.00m | 6:04AM0.58m | 6:12PM0.69m | 6:37AM0.31m | 6:46PM0.51m | 7:10AM0.18m | 7:20PM0.45m | 7:44AM0.20m | 7:55PM0.52m | 8:20AM0.38m | 8:33PM0.72m | |||||||
 |  |  |  |  | | | | |  | |  | | | |  | |  | |  | |
 | — | — | 6:13 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — |
mm | 6 | 2 | 5 | 20 | — | 4 | 1 | — | 4 | 7 | 3 | — | 4 | 1 | 2 | — | 5 | — | — | — |
Temp °C | 21 | 17 | 17 | 17 | 16 | 16 | 19 | 16 | 16 | 16 | 15 | 18 | 18 | 15 | 14 | 16 | 15 | 16 | 15 | 12 |
Feels °C | 21 | 16 | 16 | 17 | 16 | 15 | 17 | 15 | 15 | 16 | 11 | 17 | 18 | 15 | 11 | 12 | 12 | 11 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | — | — | — | ENE 4 | — | WSW 3 | — | NW 4 | NW 4 | NNW 5 | — | NW 4 | W 3 | — | — | — | — | — | — | — |
| kJ | — | — | — | 6 | — | 1 | — | 1 | 5 | 2 | — | 4 | 1 | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 10 | NNW 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 3 | E 4 | ENE 4 | — | — | — | WNW 2 | WSW 4 | — | — | NW 4 | WSW 2 | — | SW 2 | WNW 4 | WNW 5 | W 5 | W 6 | WNW 6 | WNW 4 |
| kJ | 6 | 9 | 8 | — | — | — | 1 | 5 | — | — | 26 | 1 | — | 1 | 42 | 85 | 87 | 293 | 98 | 12 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 359 | 323 | 268 | 326 | 226 | 75 | 241 | 230 | 51 | 514 | 54 | 262 | 94 | 189 | 333 | 327 | 408 | 194 | 420 | 188 |
Best forecast wave conditions in North Wales | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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