Surf Forecasts:
Rhos-On-Sea surf forecast from 16 Sep 2026:
- Most powerful swell: Wednesday 16 Sep, 4AM (local time) - 4.5ft (1.4m), 5s period, NW swell with 110 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 1.4m 5s and forecast to arrive on Wednesday (Sep 16) 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 1.8m 6s period and expected on Thursday (Sep 17) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 16th Sep) | 4.5ft (1.4m) 5s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Right, let’s have a look at what’s brewing here for Rhos-On-Sea.
Honestly, for the next couple of weeks, it’s a tough run. We’ve got a long stretch of nothing much happening, and the water is sitting at a very unusual 63° – that’s about 4° warmer than normal for this time of year, which is pretty wild for a North Wales point break.
The whole first week is a write-off. From Tuesday the 15th right through to Monday the 21st, there’s hardly any wave energy to speak of, and what little swell we see is short-period, shifty stuff. The wind is mainly cross-off or fresh, blowing the wrong way for getting any shape out of it.
We get a couple of flat, glassy mornings around the 22nd and 23rd – dead calm, zero swell – but that’s just a flat spell. By the 25th, we see a tiny pulse of 2ft with a 5-second period, giving a combined energy of just 15 (weak), but it’s a cross-on wind, so it’s messy.
The best of a bad run comes late on the 30th of September. We get a 3ft NE swell with a 4-second period. It’s tiny, it’s short-period, but the combined energy climbs to 33 (still weak). The wind is a fresh cross-off, which will keep the surface clean for a few little waist-high closeouts. For a consistent point, this is about as poor as it gets. Honestly, this setup is looking more interesting for kiteboarding than paddle surfing, given the lack of proper swell.
Nothing in this 16-day window stands out as a true go. You’d be gambling on a sea breeze and a ripple. Forecasts can change, but for now, it’s a flat spell.
Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Wed night. Very mild (max 16°C on Tue afternoon, min 12°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 19°C on Mon morning, min 11°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 | NW 5 | NW 5 | WNW 5 | WSW 5 | W 6 | W 6 | WNW 6 | W 6 | WSW 5 | WSW 6 | WSW 5 | W 5 | WNW 5 | WNW 5 | WNW 4 | WSW 4 | W 4 | NW 4 | — |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 63 | 68 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 3 | 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 | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 2:24AM7.00m | 2:42PM6.62m | 3:02AM6.44m | 3:19PM6.14m | 3:44AM5.86m | 4:05PM5.65m | 4:38AM5.32m | 5:08PM5.23m | 5:58AM4.95m | 6:43PM5.07m | 7:38AM4.94m | 8:12PM5.31m | ||||||||
Low Tide | 8:27PM0.82m | 8:48AM1.09m | 9:03PM1.27m | 9:24AM1.64m | 9:44PM1.77m | 10:06AM2.16m | 10:35PM2.26m | 11:02AM2.59m | 11:45PM2.63m | 12:21PM2.83m | 1:16AM2.70m | 1:50PM2.73m | 2:38AM2.40m | |||||||
 |  | |  | | | |  |  |  | | |  |  | | | | | | | |
 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — |
 | 7:31 | — | — | 7:29 | — | — | 7:27 | — | — | 7:23 | — | — | 7:22 | — | — | 7:19 | — | — | 7:16 | — |
mm | 2 | 2 | 1 | — | 2 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 13 | 15 | 16 | 15 | 14 | 15 | 13 | 16 | 15 | 17 | 17 | 17 | 14 | 15 | 16 | 17 | 19 | 19 | 18 |
Feels °C | 12 | 9 | 11 | 11 | 11 | 8 | 9 | 7 | 12 | 11 | 14 | 13 | 12 | 11 | 13 | 13 | 16 | 18 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 4 | — | — | NW 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | — | — | 3 | — |
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 | NW 5 | NW 5 | WNW 5 | WSW 5 | W 6 | W 6 | WNW 6 | W 6 | WSW 5 | WSW 6 | WSW 5 | W 5 | WNW 5 | WNW 5 | SW 4 | WSW 4 | W 4 | WNW 3 | — |
| kJ | 92 | 63 | 68 | 50 | 69 | 139 | 229 | 186 | 106 | 109 | 122 | 88 | 71 | 59 | 32 | 7 | 21 | 6 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 624 | 186 | 194 | 230 | 241 | 243 | 556 | 198 | 283 | 498 | 514 | 333 | 75 | 75 | 75 | 275 | 275 | 194 | 254 | 206 |
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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