
Surf Forecasts:
Rhos-On-Sea surf forecast from 6 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 7PM (local time) - 3.5ft (1.1m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 4AM (local time) - 8ft (2.4m), 7s period, WNW swell with 495 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 7PM (local time) - 3.5ft (1.1m), 6s period with NW swell.
Best Forecast Surf Conditions for Rhos-On-Sea this week:
The surf forecast for Rhos-On-Sea over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 7PM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rhos-On-Sea in the next 16 days are 2.4m 7s and forecast to arrive on Wednesday (Sep 09) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Wednesday (Sep 09) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 9th Sep) | 3.5ft (1.1m) 6s |
| Best Surf | 7PM (Wed 9th Sep) | 3.5ft (1.1m) 6s |
| Most Powerful | 4AM (Wed 9th Sep) | 8ft (2.4m) 7s |
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 what’s on the cards for Rhos-On-Sea over the next couple of weeks.
Well, I’ll be honest with you, it’s a pretty grim start. We’re looking at a long, dry spell with no surf to speak of right through until the 9th of September. The first few days are just flat with light winds, not a ripple worth mentioning. You’re better off finding something else to do.
Then, on Wednesday morning the 9th, we finally get a pulse. A NW swell at 6ft, but it’s a short period windswell with only 6 seconds between waves. The energy is moderate (239) but the model is calling it “poor surf conditions” and giving it a zero score. The wind is cross-offshore from the WNW at 19 mph, which makes it messy. Honestly, it’s not looking like a goer.
After that, it’s back to flat. There’s a tiny blip on Friday the 11th afternoon with a 3ft NW swell, but the period is a pathetic 5 seconds and the energy is weak (35). The wind is cross-shore, so the waves will be choppy and weak. Don’t bother.
The next real sniff of something comes on Wednesday the 16th. The morning has a 4ft NW swell with a 6 second period, and the energy is moderate (111). The wind is a light cross-offshore from the SSW at 3 mph, so the surface will be clean. The afternoon is a little smaller at 4ft, but the wind swings offshore from the SW at 6 mph, giving you a clean, glassy feel. The model says “surfable waves but very ordinary conditions” and gives it a 1 out of 10. For a spot that’s been dead for so long, this is the best we’ve got. The swell is coming from the NW, which is the optimum direction for this point break, so the shape should be okay. But it’s only a 4ft wave, so it’s not going to be a barnstormer. The crowds are rarely an issue here, but for this size, it’ll be a quiet session.
The rest of the forecast into the 21st of September is a desert. There’s a tiny 3ft bump on the 20th and a 4ft one on the 21st, but both are short period and have poor conditions. There’s nothing else to get excited about.
So, the standout window, if you can call it that, is Wednesday the 16th of September. Go for the afternoon session when the wind is offshore for the cleanest conditions. The water temperature is about average for this time of year. It’s not a classic, but it’s something to get wet on. After that, the models are showing nothing.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Warm (max 22°C on Sun afternoon, min 11°C on Mon night). Winds increasing (light winds from the WSW on Sun afternoon, fresh winds from the W by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Thu morning, min 12°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed morning, calm by Fri afternoon). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 6 | WSW 6 | WSW 4 | W 4 | WSW 4 | WSW 6 | W 6 | W 7 | WNW 7 | NW 7 | NW 6 | NNW 5 | W 4 | WSW 4 | WSW 4 | WNW 5 | NW 4 | NNW 4 | SE 3 | WSW 5 | WNW 5 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 370 | 156 | 9 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross | cross-off | cross-off | off | cross-off |
High Tide | 7:19PM5.77m | 8:07AM5.78m | 8:40PM6.16m | 9:19AM6.19m | 9:41PM6.73m | 10:15AM6.67m | 10:31PM7.29m | 11:01AM7.09m | 11:15PM7.72m | 11:42AM7.39m | 11:56PM7.97m | 12:20PM7.53m | 00:34AM8.00m | ||||||||
Low Tide | 1:15PM2.17m | 2:04AM1.90m | 2:40PM1.92m | 3:21AM1.40m | 3:46PM1.46m | 4:20AM0.81m | 4:38PM0.96m | 5:08AM0.28m | 5:23PM0.55m | 5:51AM-0.07m | 6:03PM0.28m | 6:29AM-0.20m | 6:41PM0.17m | ||||||||
6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | |
— | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:45 | — | — | 7:44 | — | — | 7:40 | — | — | 7:38 | — | |
mm | 2 | — | 1 | — | — | 13 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 17 | 17 | 18 | 15 | 14 | 15 | 13 | 15 | 16 | 12 | 18 | 17 | 16 | 18 | 18 | 15 | 20 | 19 | 15 |
Feels °C | 20 | 21 | 16 | 14 | 15 | 11 | 7 | 8 | 6 | 9 | 11 | 9 | 17 | 16 | 14 | 16 | 17 | 14 | 18 | 16 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | WSW 6 | W 7 | — | W 13 | — | — | — | — | — | — | NNW 5 | WNW 4 | — | — | — | — | NNW 4 | WSW 3 | — | — |
13 | 15 | 3 | — | 4 | — | — | — | — | — | — | 9 | 5 | — | — | — | — | 2 | 1 | — | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 3 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | WSW 4 | W 4 | WSW 4 | WSW 6 | W 6 | W 7 | WNW 7 | NW 7 | NW 6 | W 4 | W 4 | WSW 4 | WSW 4 | WNW 5 | NW 4 | — | SE 3 | WSW 5 | WNW 5 |
— | — | 12 | 16 | 24 | 189 | 292 | 378 | 482 | 370 | 156 | 7 | 7 | 26 | 16 | 42 | 19 | — | 2 | 67 | 47 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 193 | 254 | 435 | 262 | 75 | 275 | 271 | 293 | 345 | 346 | 345 | 226 | 226 | 254 | 275 | 230 | 194 | 293 | 186 | 243 | 281 |
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.










