Surf Forecasts:
Rhos-On-Sea surf forecast from 30 Aug 2026:
- Most powerful swell: Saturday 5 Sep, 1AM (local time) - 2ft (0.6m), 6s period, NNW swell with 25 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 0.6m 6s and forecast to arrive on Saturday (Sep 05) 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 2.4m 7s period and expected on Friday (Sep 04) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 5th Sep) | 2ft (0.6m) 6s |
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. Gotta be straight with you – it's a tough outlook. There’s a long, frustrating gap at the start with nothing worth paddling out for. The first real sniff of a wave doesn’t show up until Saturday the 5th of September, and even then, it’s barely a ripple at 1 ft from the NW with a short, weak period. That's not going to get you out of bed. The pattern of flat or junk conditions then drags on through the first week of September.
On Wednesday the 9th, we finally see a spike in energy – 4 ft swell from the NW, but the period is still a messy 6 seconds and combined energy is a weak (92). On top of that, the wind is howling offshore at 25 mph from the SW. That strength of offshore wind will make it incredibly hard to paddle into anything, so the surface might look clean but actually surfing it will be a battle. Not recommended.
The one day that might offer a glimmer is Sunday the 13th of September. The swell bumps up to 7 ft from the NW, with combined energy reading a moderate (297). The wind is light at 6 mph from the ESE, which is a light cross-onshore. That’s manageable, and will keep things reasonably clean. However, the period is still a short 6 seconds, so expect lumpy, less powerful waves that won’t hold their shape well. This wave height is getting into the intermediate zone, so beginners might find it a handful.
Because the break is Rhos-On-Sea, a point break, a long period groundswell would be its best friend, but with these short periods, the quality just won't be there.
This is a real test of patience. There’s no standout session here. If you’re desperate for a paddle, Sunday the 13th of September is your only real window, but keep expectations low.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sun morning, min 11°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 19°C on Wed morning, min 13°C on Thu night). Winds increasing (light winds from the SSW on Tue night, fresh winds from the WSW by Fri morning). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 9 | SW 4 | SW 3 | WNW 5 | WNW 5 | NNW 4 | W 5 | WSW 4 | SW 4 | SW 5 | WSW 5 | WSW 5 | W 5 | WSW 5 | W 6 | W 7 | WNW 6 | NNW 6 | NW 4 | WSW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 4 | 0 | 0 |
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 | off | off | off | off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:00PM7.25m | 1:13AM7.70m | 1:34PM7.27m | 1:49AM7.60m | 2:10PM7.16m | 2:27AM7.34m | 2:50PM6.90m | 3:10AM6.94m | 3:36PM6.52m | 4:02AM6.44m | 4:33PM6.09m | 5:08AM5.95m | 5:48PM5.76m | ||||||||
Low Tide | 7:10AM0.18m | 7:20PM0.45m | 7:44AM0.20m | 7:55PM0.52m | 8:20AM0.38m | 8:33PM0.72m | 8:58AM0.71m | 9:14PM1.04m | 9:42AM1.15m | 10:03PM1.44m | 10:36AM1.63m | 11:07PM1.84m | 11:47AM2.04m | 00:31AM2.06m | |||||||
 |  |  |  | | |  |  |  | | | | | |  | | | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — | — | 7:58 | — | — | 7:55 | — |
mm | — | 3 | — | 2 | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 19 | 16 | 14 | 15 | 16 | 13 | 19 | 19 | 16 | 19 | 19 | 18 | 19 | 19 | 17 | 16 | 17 | 14 | 15 | 15 | 16 |
Feels °C | 17 | 15 | 13 | 11 | 12 | 10 | 15 | 15 | 14 | 15 | 16 | 16 | 13 | 13 | 13 | 9 | 11 | 7 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | W 3 | SW 4 | SW 6 | — | W 8 | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | NNW 6 | NW 4 | — | — |
| kJ | 1 | 3 | 1 | — | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | 25 | 4 | — | — |
Swell 2 Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 4 | — | — |
| kJ | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 2 | — | SW 3 | WNW 5 | WNW 5 | W 4 | W 5 | WSW 4 | SW 4 | SW 5 | WSW 5 | WSW 5 | W 5 | WSW 5 | W 6 | W 7 | WNW 6 | WNW 5 | SE 2 | WSW 6 | SW 6 |
| kJ | 1 | — | 3 | 140 | 97 | 9 | 34 | 31 | 46 | 73 | 44 | 64 | 61 | 78 | 294 | 507 | 192 | 33 | 1 | 143 | 123 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 323 | 321 | 75 | 294 | 75 | 75 | 196 | 254 | 275 | 581 | 484 | 238 | 243 | 334 | 1086 | 827 | 556 | 555 | 194 | 75 | 97 |
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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