Surf Forecasts:
Rhos-On-Sea surf forecast from 3 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 4PM (local time) - 6ft (1.9m), 6s period, WNW swell with 286 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 1.9m 6s and forecast to arrive on Tuesday (Sep 08) at 4PM. 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 Tuesday (Sep 08) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 8th Sep) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Alright, let’s get this sorted. This is Rhos-On-Sea, a point break that faces northwest. I’ve got to be straight with you—this is not a promising outlook. The next 16 days look bleak, with no real surf on the cards.
We’ve got a long stretch of nothing from the start. The first spot of any swell doesn’t show until Saturday afternoon, September 5th, and even then it’s just a tiny 1ft ripple from the northwest with a short period of 5 seconds and weak energy (5). The wind is light and cross-off, so the water will be clean, but there’s no power behind it. It’s barely a wave.
The following days are a lot of zeros and “poor surf conditions.” The next notable pulse comes on Tuesday, September 8th, in the afternoon. We get a 6ft swell from the west-northwest, with a period of 6 seconds and moderate energy (286). That’s a bit of size, but the period is short, and the wind is a fresh cross-off. It might have some shape, but this is a point break, and that short-period, onshore-angled swell won’t groom into anything special. The water temperature is about average for the time of year.
We then head into another long gap. By Tuesday, September 15th, the morning offers a 4ft swell from the northwest, period 5 seconds, with weak energy (61). The wind is glassy, so it’ll be clean, but it’s small and weak. That afternoon sees a 5ft from the northwest, 6-second period, and moderate energy (165), but the wind switches to a light cross-onshore, creating a bit of bump. It’s not worth getting excited over.
The 16th of September has a glassy morning with a 3ft swell from the northwest, period 5 seconds, energy (36)—just too small. It fades into nothing by the 17th and 18th.
Honestly, for a spot that’s already inconsistent, this is a solid blank run. There are no real standouts. The best of a bad bunch is probably the Tuesday the 8th afternoon, if you’re desperate for some size, but don’t expect quality. The wind is clean, but the swell is messy. For the rest, the surf is absent or too weak. This is a stretch where the forecasts would need to change dramatically to give us anything worthwhile. If you’re a kite surfer, those cross-off and cross winds might be more interesting than the waves.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Thu night. Warm (max 20°C on Thu morning, min 12°C on Fri night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 23°C on Sun afternoon, min 12°C on Mon night). Winds increasing (light winds from the S on Sun morning, fresh winds from the W by Tue morning). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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 | WSW 4 | W 4 | W 5 | W 6 | WNW 5 | WNW 5 | NW 5 | NW 4 | SE 3 | SW 6 | WSW 4 | WNW 5 | WSW 4 | W 5 | WNW 6 | WNW 6 | NW 6 | NW 5 | WNW 5 | NW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 286 | 0 | 0 | 0 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:36PM6.52m | 4:02AM6.44m | 4:33PM6.09m | 5:08AM5.95m | 5:48PM5.76m | 6:36AM5.66m | 7:19PM5.77m | 8:07AM5.78m | 8:40PM6.16m | 9:19AM6.19m | 9:41PM6.73m | 10:15AM6.67m | 10:31PM7.29m | ||||||||
Low Tide | 9:42AM1.15m | 10:03PM1.44m | 10:36AM1.63m | 11:07PM1.84m | 11:47AM2.04m | 00:31AM2.06m | 1:15PM2.17m | 2:04AM1.90m | 2:40PM1.92m | 3:21AM1.40m | 3:46PM1.46m | 4:20AM0.81m | 4:38PM0.96m | ||||||||
 |  |  | |  |  | | |  |  | |  | |  |  | | | | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:00 | — | — | 7:58 | — | — | 7:55 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:45 | — |
mm | — | 1 | 20 | — | — | — | — | — | — | — | — | 1 | — | 2 | 1 | 1 | — | 1 | — | — | 1 |
Temp °C | 20 | 18 | 16 | 17 | 17 | 15 | 16 | 18 | 14 | 21 | 23 | 18 | 17 | 18 | 12 | 14 | 15 | 12 | 14 | 15 | 13 |
Feels °C | 16 | 15 | 13 | 11 | 11 | 10 | 14 | 16 | 11 | 20 | 22 | 17 | 12 | 12 | 5 | 7 | 7 | 6 | 9 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 5 | W 3 | SW 5 | SE 3 | — | — | — | — | — | — | — | — | — | NW 4 |
| kJ | — | — | — | — | — | — | — | 5 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 4 | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | WSW 4 | W 4 | W 5 | W 6 | WNW 5 | WNW 5 | — | — | SE 3 | SW 6 | WSW 4 | WNW 5 | WSW 4 | W 5 | WNW 6 | WNW 6 | NW 6 | NW 5 | WNW 5 | WSW 4 |
| kJ | 54 | 33 | 12 | 141 | 158 | 98 | 39 | — | — | 6 | 10 | 34 | 28 | 29 | 70 | 275 | 286 | 136 | 77 | 33 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 241 | 484 | 215 | 324 | 555 | 194 | 75 | 238 | 186 | 287 | 345 | 230 | 275 | 581 | 189 | 827 | 514 | 345 | 243 | 226 | 230 |
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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