Surf Forecasts:
Rhos-On-Sea surf forecast from 17 Jul 2026:
- Best quality surf: Thursday 23 Jul, 1AM (local time) - 3.5ft (1.1m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 1AM (local time) - 6ft (1.9m), 7s period, NW swell with 296 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 1AM (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 Thursday (Jul 23) at 1AM. 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 1.9m 7s and forecast to arrive on Wednesday (Jul 22) 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 0.6m 4s period and expected on Saturday (Jul 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 23rd Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 1AM (Thu 23rd Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 1AM (Wed 22nd Jul) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Well, folks, Rusty here. I’ve combed through the next 16 days for Rhos-On-Sea, and honestly, it’s a flat spell. Not a single session worth paddling out for. The whole stretch from Friday 17 July right through to Saturday 1 August is littered with “poor surf conditions” – every single time slot. The swell is tiny, mostly under 3 ft, with short periods (3–6 seconds) and weak energy – the combined energy rarely cracks double digits, and only on Wednesday 22 July morning does it hit 139, which is still moderate, but the wave comment is still “poor”. The wind is light to moderate, occasionally cross-off or clean, but with that small, weak swell it just doesn’t matter.
Rhos-On-Sea is a point break that’s already inconsistent, and this kind of blank run is more normal for the area. The water temperature is a standout though – a balmy 66°F, which is 8°F warmer than usual for this time of year. That’s very unusual, but it won’t make the waves any better. If you’re desperate for a paddle, the best you’ll get is waist-high slop with a short period, and even then the wind is never properly offshore. Honestly, I’d hang the board up for the next two weeks and wait for the next system to roll in.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 11°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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) | NW 4 | NNW 4 | NW 5 | NW 6 | NW 5 | NW 4 | NW 4 | NW 4 | NW 5 | NW 5 | NW 4 | NW 5 | NW 5 | NW 7 | NW 6 | NW 6 | NW 6 | NW 6 | NW 5 | WNW 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 4 | 18 | 32 | 9 | 4 | 3 | 6 | 31 | 15 | 7 | 15 | 41 | 296 | 139 | 64 | 95 | 31 | 0 | 1 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross-on | cross-off | cross | cross | cross-off | cross-off | cross-on | glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross-off |
High Tide | 2:04AM7.85m | 2:34PM7.04m | 2:49AM7.53m | 3:20PM6.69m | 3:35AM7.07m | 4:06PM6.30m | 4:23AM6.54m | 4:56PM5.92m | 5:17AM6.02m | 5:53PM5.61m | 6:20AM5.61m | 6:59PM5.44m | ||||||||
Low Tide | 8:11PM0.43m | 8:43AM0.02m | 8:55PM0.69m | 9:27AM0.39m | 9:38PM1.04m | 10:11AM0.86m | 10:24PM1.45m | 10:57AM1.38m | 11:13PM1.86m | 11:47AM1.86m | 00:10AM2.20m | 12:45PM2.22m | 1:17AM2.40m | |||||||
 |  | | |  |  | | | | | | | |  |  | | | | | | |
 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:16 | — | — |
 | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:24 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 14 | 18 | 17 | 16 | 17 | 16 | 15 | 16 | 17 | 17 | 16 | 16 | 13 | 14 | 16 | 14 | 17 | 16 | 14 |
Feels °C | 18 | 13 | 17 | 15 | 14 | 15 | 14 | 14 | 14 | 16 | 18 | 15 | 13 | 11 | 12 | 14 | 13 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | NNW 4 | NW 5 | NW 6 | NW 5 | — | — | NW 4 | NW 5 | NW 5 | NW 4 | — | — | — | — | — | NW 6 | NW 6 | — | WNW 4 |
| kJ | — | 4 | 18 | 32 | 9 | — | — | 6 | 31 | 15 | 7 | — | — | — | — | — | 95 | 31 | — | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | — | — | — | — | NW 4 | NW 4 | — | — | — | — | NW 5 | NW 5 | NW 7 | NW 6 | NW 6 | — | — | NW 5 | — |
| kJ | 3 | — | — | — | — | 4 | 3 | — | — | — | — | 15 | 41 | 296 | 139 | 64 | — | — | 12 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 582 | 241 | 242 | 242 | 241 | 242 | 242 | 230 | 226 | 242 | 226 | 241 | 994 | 230 | 579 | 242 | 0 | 242 | 242 | 230 |
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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