Surf Forecasts:
Rhos-On-Sea surf forecast from 12 Jul 2026:
- Best quality surf: Saturday 18 Jul, 10PM (local time) - 4ft (1.2m), 6s period, NW swell with glassy winds.
- Most powerful swell: Saturday 18 Jul, 10PM (local time) - 4ft (1.2m), 6s period, NW swell with 99 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 10PM (local time) - 4ft (1.2m), 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 Saturday (Jul 18) at 10PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 1.0m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rhos-On-Sea in the next 16 days are 1.2m 6s and forecast to arrive on Saturday (Jul 18) at 10PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 17) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 18th Jul) | 4ft (1.2m) 6s |
| Best Surf | 10PM (Sat 18th Jul) | 4ft (1.2m) 6s |
| Most Powerful | 10PM (Sat 18th Jul) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
Alright, Rusty here again, and I’m telling you the same story in feet and degrees. This 16-day look at Rhos-On-Sea is a tough one. The water is 66°F, which is a solid 7°F warmer than usual for this time of year – that’s a real surprise when you’re floating out there. But the surf? Mostly a bust.
We start Sunday the 12th with a tiny 2ft swell from the NE, but it’s a short-period, weak windswell with a combined energy of only 14. That onshore ENE wind at 12 mph is making it a mess – poor surf conditions. That flat, weak pattern sticks around for days. Through Monday the 13th and Tuesday the 14th, we’re stuck with the same: small, choppy, and not worth the rubber. The combined energy barely hits 16 on the best of those days. There’s a gap of several days with no real recommendation.
The first hint of something better doesn’t show until Saturday the 19th, with a 4ft NW swell, a period of 6 seconds, and a combined energy of 67. Winds are light and cross-shore, so it’s not blown out, but the period is short – just a weak, disorganized windswell. Still “poor surf conditions.” This is for the patient.
The real standouts, and the only two moments that look any good, are on Monday the 20th. The morning shows a 3ft NW swell (30 energy) with a nice cross-offshore breeze from the WNW at 9 mph. That’s clean. The afternoon is a bit smaller at 2ft (13 energy), but still with that sweet cross-offshore wind. For a break that’s inconsistent and fairly exposed, this is your window. It’s not big, but it’s the cleanest we’ll see.
After that, it’s flat again. A tiny 0.7ft bump on Friday the 24th afternoon, but it’s a joke with 1 energy. The rest of the second week is a desert of zeros. The forecast can change, but right now, if you’re not surfing Monday the 20th, you’re better off waiting.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 26°C on Thu morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | NE 4 | ENE 4 | ENE 4 | NNE 4 | NE 4 | NE 3 | NNE 4 | NE 4 | NE 4 | NE 4 | ENE 4 | NE 3 | NNE 3 | ENE 4 | ENE 3 | — | NNW 2 | NW 5 | NW 5 | NW 6 | NW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 21 | 12 | 16 | 16 | 5 | 10 | 24 | 6 | 10 | 18 | 3 | 3 | 8 | 0 | 0 | 1 | 28 | 35 | 93 | 67 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | glassy | cross-on | glassy | cross-off | cross | cross | glassy | cross |
High Tide | 10:00PM6.86m | 10:29AM6.97m | 10:54PM7.30m | 11:23AM7.27m | 11:44PM7.68m | 12:14PM7.43m | 00:32AM7.92m | 1:02PM7.45m | 1:19AM7.99m | 1:49PM7.31m | 2:04AM7.85m | 2:34PM7.04m | 2:49AM7.53m | ||||||||
Low Tide | 4:02PM1.13m | 4:34AM0.89m | 5:00PM0.81m | 5:31AM0.42m | 5:52PM0.53m | 6:22AM0.04m | 6:41PM0.35m | 7:11AM-0.17m | 7:27PM0.32m | 7:58AM-0.17m | 8:11PM0.43m | 8:43AM0.02m | 8:55PM0.69m | 9:27AM0.39m | |||||||
 |  | | | | | | | |  |  | |  |  |  | |  | | | | | |
 | — | — | 5:01 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 |
 | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:35 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 21 | 21 | 23 | 18 | 22 | 25 | 21 | 25 | 25 | 24 | 26 | 21 | 18 | 18 | 17 | 16 | 20 | 20 | 16 | 20 |
Feels °C | 24 | 17 | 17 | 18 | 15 | 19 | 21 | 18 | 22 | 22 | 20 | 25 | 21 | 18 | 17 | 17 | 15 | 18 | 17 | 15 | 18 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 3 | ENE 3 | — | — | — | — | NW 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | 93 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 4 | ENE 4 | ENE 4 | NNE 4 | NE 4 | NE 3 | NNE 4 | NE 4 | NE 4 | NE 4 | ENE 4 | NE 3 | NNE 3 | ENE 4 | — | — | NNW 2 | NW 5 | NW 5 | — | NW 6 |
| kJ | 14 | 21 | 12 | 16 | 16 | 5 | 10 | 24 | 6 | 10 | 18 | 3 | 3 | 8 | — | — | 1 | 28 | 35 | — | 67 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 321 | 269 | 456 | 322 | 243 | 206 | 188 | 321 | 375 | 260 | 406 | 271 | 188 | 260 | 379 | 379 | 206 | 375 | 556 | 0 | 137 |
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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