Surf Forecasts:
Rhos-On-Sea surf forecast from 18 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 10PM (local time) - 3.5ft (1.1m), 6s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 22 Jul, 4AM (local time) - 5ft (1.6m), 6s period, NW swell with 195 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 10PM (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 Tuesday (Jul 21) at 10PM. 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 1.6m 6s and forecast to arrive on Wednesday (Jul 22) 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 0.8m 5s period and expected on Thursday (Jul 23) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 21st Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 10PM (Tue 21st Jul) | 3.5ft (1.1m) 6s |
| Most Powerful | 4AM (Wed 22nd Jul) | 5ft (1.6m) 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 offer for Rhos-On-Sea over the next couple of weeks.
Right off the bat, I gotta be straight with you: the next 16 days are looking pretty grim for a proper paddle. We’ve got a long stretch of very small, weak, and mostly choppy surf on the way. The first real blip of energy doesn’t show up until Wednesday the 22nd, and even then, it’s not exactly going to set the world on fire.
The water temp is sitting at 67°, which is a whopping 8° warmer than normal for this time of year – that’s very unusual, so you’ll be in for a warm dip if you do get in.
The only time we see any real size is on Wednesday the 22nd. A pulse of swell from the NW pushes the wave height to 4 ft, with a period of 6 seconds. The combined energy of all swells directed here is moderate (120). The wind turns cross-offshore from the WNW, which cleans things up nicely. This is your best bet, but it’s still a short-period, windswell-type wave, so don’t expect any long lines. The waves will be a bit crumbly and soft. It’s not a standout for the ages, but it’s the only show in town.
After that, the swell drops off fast. By Thursday the 23rd we’re back to 3 ft, and then it’s a slow fade into flatness. From the 25th of July right through to the 2nd of August, there’s virtually no swell at all – just a few tiny, unrideable bumps. The wind goes offshore for a lot of that period, so the water will be glassy, but with nothing to ride, it’s just a pretty lake. Honestly, for the last week of the forecast, it’s a total blank.
So, to sum it up: if you’re desperate for a surf, make a plan for Wednesday the 22nd. It’s the only day with any real punch, and the clean conditions will make it rideable. Otherwise, it’s a waiting game. The inconsistent nature of this stretch is a bit of a bummer, but that’s Rhos for you sometimes.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Fri morning, min 12°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 5 | NW 5 | NW 4 | NW 4 | NW 3 | NW 5 | NW 5 | NW 5 | NW 5 | NW 4 | NW 6 | NW 6 | NW 6 | NNW 6 | NW 5 | NW 5 | NNW 5 | NNW 4 | NW 4 | W 3 |
Wave Graph  | ||||||||||||||||||||
 kJ | 15 | 13 | 7 | 4 | 3 | 19 | 0 | 29 | 13 | 17 | 188 | 120 | 104 | 127 | 31 | 0 | 20 | 12 | 4 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | cross-on | glassy | cross-off | cross-off | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off |
High Tide | 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 | 7:31AM5.41m | 8:07PM5.45m | ||||||||
Low Tide | 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 | 1:52PM2.40m | 2:31AM2.39m | |||||||
 |  | |  |  | | | | | | | | | | | | | | |  | |
 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:16 | — | — | 5:16 | — | — |
 | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:24 | — | — | 9:23 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 15 | 17 | 17 | 15 | 16 | 16 | 14 | 18 | 18 | 14 | 16 | 16 | 14 | 16 | 16 | 15 | 19 | 20 | 17 |
Feels °C | 17 | 15 | 15 | 16 | 15 | 14 | 14 | 14 | 17 | 17 | 12 | 14 | 14 | 13 | 13 | 13 | 14 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | — | NW 5 | — | NW 4 | NW 3 | — | — | NW 5 | NW 5 | — | — | — | — | — | — | — | — | NNW 4 | — | — |
| kJ | — | 13 | — | 4 | 3 | — | — | 29 | 13 | — | — | — | — | — | — | — | — | 12 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | — | NW 4 | — | — | NW 5 | NW 5 | — | — | NW 4 | NW 6 | NW 6 | NW 6 | NNW 6 | NW 5 | NW 5 | NNW 5 | — | NW 4 | W 3 |
| kJ | 15 | — | 7 | — | — | 19 | 19 | — | — | 17 | 188 | 120 | 104 | 127 | 31 | 26 | 20 | — | 4 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 242 | 242 | 242 | 242 | 226 | 242 | 1001 | 226 | 339 | 250 | 0 | 241 | 588 | 0 | 226 | 230 | 240 | 241 | 1123 | 283 |
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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