Surf Forecasts:
Rhos-On-Sea surf forecast from 13 Jul 2026:
- Most powerful swell: Monday 13 Jul, 10PM (local time) - 3.5ft (1.0m), 4s period, NE swell with 34 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 1.0m 4s and forecast to arrive on Monday (Jul 13) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 4s period and expected on Thursday (Jul 16) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Mon 13th Jul) | 3.5ft (1.0m) 4s |
Table - best surf conditions forecast for Rhos-On-Sea over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you about the surf outlook for the next couple of weeks.
First off, I gotta be honest, this is a tough one. We're looking at a long, dry stretch with hardly any swell worth paddling out for. The entire 16-day window is basically a write-off for any decent waves. We start with a few days of tiny, weak, and messy surf, and then it just flat-lines completely.
Let's run through it. The week starts Monday the 13th with poor conditions. The water is much warmer than normal for this time of year, reading 66°F, which is a pretty big anomaly. The swell is tiny, around 2ft to 3ft, with a short period of only 4 seconds, and combined energy is weak (10-16). The wind is onshore and cross-onshore, just making a mess of things. Tuesday is the same story, with even smaller swell (2ft), and Wednesday follows with a maximum of 2ft. It's all poor surf, not worth the board wax.
From Thursday the 16th right through to the end of the month, we hit a dead zone. The combined energy drops to zero. There's no swell on the charts at all. The wind does get better, with some glassy mornings and offshore breezes from the 18th onwards, but it doesn't matter one bit if there's nothing to ride. You can't have a surf without a wave.
So, the only "highlight" I can give you is a tiny sliver of hope on the 18th, 19th, and 20th of July. The swell is still pathetic, only 0.7ft to 2ft, and combined energy is weak (1-10). But the wind goes light and clean, with a glassy morning on the 19th. The swell direction is NW, which is Rhos-On-Sea's optimum, but with that tiny size and short period, it's barely a ripple. It's not a surf, it's a splash.
For the rest of the period, it's completely flat. This is a tough spot to be in. Keep checking back, forecasts can change, but for now, leave the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 12°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu morning, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | ENE 4 | NNE 4 | NE 4 | NE 3 | N 4 | NE 4 | ENE 3 | NNE 4 | E 4 | — | — | NE 4 | — | — | NNW 3 | NW 4 | NW 4 | NW 4 | NW 4 | NW 4 | NW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 16 | 16 | 5 | 9 | 23 | 4 | 11 | 10 | 0 | 0 | 6 | 0 | 0 | 2 | 7 | 7 | 6 | 7 | 6 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-on | cross | on | cross-on | glassy | cross-off | cross | glassy | glassy | cross | cross-off |
High Tide | 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 | 3:20PM6.69m | 3:35AM7.07m | |||||||
Low Tide | 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 | 9:38PM1.04m | ||||||||
 | |  | | | | | | | | | | | | | | | | |  | | |
 | 5:01 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | — | 9:37 | — | — | 9:36 | — | — | 9:35 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 18 | 20 | 23 | 21 | 25 | 25 | 24 | 23 | 23 | 18 | 23 | 22 | 18 | 19 | 18 | 16 | 20 | 19 | 16 |
Feels °C | 16 | 18 | 15 | 17 | 20 | 19 | 22 | 21 | 20 | 20 | 20 | 18 | 20 | 20 | 17 | 17 | 17 | 16 | 19 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 4 | — | — | NNE 3 | — | — | NNW 3 | — | NNW 4 | NW 4 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | — | — | 5 | — | — | 2 | — | 3 | 6 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 4 | NNE 4 | NE 4 | NE 3 | N 4 | NE 4 | ENE 3 | NNE 4 | E 4 | — | — | NE 4 | — | — | — | NW 4 | NW 4 | — | NW 4 | NW 4 | NW 4 |
| kJ | 10 | 16 | 16 | 5 | 9 | 23 | 4 | 11 | 10 | — | — | 6 | — | — | — | 7 | 7 | — | 7 | 6 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 472 | 260 | 296 | 206 | 260 | 315 | 321 | 262 | 406 | 379 | 365 | 277 | 321 | 582 | 388 | 304 | 242 | 226 | 240 | 304 | 226 |
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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