
Surf Forecasts:
Fishermans (Rhiw) surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 1AM (local time) - 4.5ft (1.3m), 5s period, WNW swell with 75 kJ wave energy.
Best Forecast Surf Conditions for Fishermans (Rhiw) this week:
The most powerful waves expected at Fishermans (Rhiw) in the next 16 days are 1.3m 5s and forecast to arrive on Thursday (Aug 06) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Aug 06) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Thu 6th Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a good look at the waves on the cards for Fishermans (Rhiw). Straight up, I gotta be honest with you – it's a grim picture for the next couple of weeks. There’s a long, dry spell ahead with barely a ripple to get excited about.
The overall pattern is one of persistent small, weak, and poor-quality surf. We're looking at a stretch from now, the 5th of August, all the way through to at least the 20th, where every single reading in the forecast is marked as poor surf conditions. That's a solid 16-day gap with no real recommendations, which is a tough run for this area. The water temperature is sitting at about 63°, about a touch warmer than normal for this time of year.
Let's break down the first week. Starting Wednesday afternoon the 5th, we've got a 4ft WSW swell but it's short-period windswell at 5 seconds, with a strong 19 mi/h cross-on westerly. The combined swell energy is weak at only 98, and it's gonna be lumpy and messy. Not worth getting wet for. Thursday the 6th drops off to a tiny 2ft with a cross-shore breeze, and it's all downhill from there. Friday, Saturday, Sunday... it's all onshore winds and tiny, weak swells under 2ft, with energy readings barely hitting double digits. There is a moment on Monday morning the 10th where the wind goes glassy from the NNW, but the swell is a pathetic 1.0ft. Clean, yes, but unsurfable.
Into the middle of next week, the 12th and 13th, we get a little bump in period to 8 and even 10 seconds, but the height is still a tiny 0.7ft to 2ft. We see a glassy morning on the 13th and 14th, with clean conditions from a NNW offshore on the 15th, but again, the energy is just not there (combined energy of all swells is between 18 and 33). You'd be floating.
The second week doesn't offer any hope either. By the 17th and 18th, the wind swings onshore and even gets up to a strong 28 mi/h cross-shore with rain on the 18th. There's a pulse of very long-period groundswell on the 19th (15 to 16 seconds), but the height is a pathetic 0.3ft, so that energy is basically non-existent. The last days, the 20th, see a bump back to a 3ft SW swell, but it's getting crushed by a strong 19 mi/h cross-on wind and then a near-gale on the 20th afternoon.
Honestly, lads, there's not a single standout session in this entire 16-day outlook. The combination of tiny swell, poor wind direction, and mostly weak energy (with the combined energy of all swells never topping 98) means there are no waves to speak of for Fishermans (Rhiw). It’s a total blank run. The best you can hope for is that forecasts change, because it tends not to stay this poor for long. But for now, leave the board in the shed.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed night, light winds from the SSW by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon night, min 16°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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) | WSW 5 | WNW 5 | WSW 6 | NW 5 | SW 4 | SW 4 | SW 4 | SW 5 | SW 4 | SW 4 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | SE 3 | SW 6 | W 11 |
Wave Graph | ||||||||||||||||||||
98 | 75 | 23 | 13 | 19 | 9 | 7 | 22 | 6 | 7 | 9 | 44 | 19 | 6 | 5 | 6 | 3 | 2 | 1 | 2 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross-on | on | on | on | on | on | on | on | on | cross-on | glassy | cross-off | off | cross-on | cross | cross-on |
High Tide | 1:44AM3.54m | 2:16PM3.21m | 2:46AM3.30m | 3:26PM3.07m | 4:04AM3.13m | 4:48PM3.08m | 5:29AM3.15m | 6:06PM3.28m | 6:42AM3.33m | 7:10PM3.62m | 7:42AM3.57m | 8:04PM3.98m | ||||||||
Low Tide | 8:01PM0.97m | 8:43AM0.96m | 9:00PM1.14m | 9:50AM1.13m | 10:26PM1.23m | 11:20AM1.18m | 00:06AM1.13m | 12:46PM1.04m | 1:25AM0.83m | 1:53PM0.78m | 2:27AM0.46m | 2:46PM0.49m | 3:18AM0.13m | |||||||
— | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | |
— | 9:05 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 14 | 15 | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 19 | 18 | 20 | 21 | 21 | 21 | 19 |
Feels °C | 11 | 8 | 11 | 11 | 15 | 12 | 13 | 14 | 13 | 14 | 14 | 16 | 17 | 20 | 16 | 17 | 18 | 20 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | — | W 13 | WSW 6 | NW 5 | — | SW 12 | — | SW 12 | SW 11 | SW 8 | SW 7 | — | SW 6 | SW 6 | SW 6 | SW 6 | NNW 3 | SW 6 | SW 6 | — |
— | 3 | 23 | 11 | — | 6 | — | 5 | 5 | 2 | 7 | — | 19 | 6 | 5 | 6 | 2 | 1 | 1 | — | |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | WSW 6 | SW 12 | — | W 12 | W 12 | W 10 | — | WSW 7 | — | W 12 | W 12 | SW 4 | — | WSW 6 | — | — | SW 6 |
— | — | 3 | 13 | 6 | — | 3 | 3 | 2 | — | 5 | — | 3 | 3 | 1 | — | 3 | — | — | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 11 |
— | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | WSW 5 | WNW 5 | NW 5 | — | SW 4 | SW 4 | SW 4 | SW 5 | SW 4 | SW 4 | SW 4 | SW 7 | — | — | — | NW 3 | — | SE 3 | — | — |
98 | 75 | 39 | — | 19 | 9 | 7 | 22 | 6 | 7 | 9 | 44 | — | — | — | 2 | — | 2 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 498 | 346 | 305 | 321 | 305 | 309 | 297 | 292 | 292 | 297 | 114 | 297 | 285 | 292 | 292 | 308 | 295 | 301 | 331 | 134 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
Information about the Fishermans (Rhiw) Surf forecast
The above surf forecast table for Fishermans (Rhiw) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fishermans (Rhiw) can be found by selecting the local surf guide option on the grey menu. Our Fishermans (Rhiw) 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 (Fishermans (Rhiw)) 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 Fishermans (Rhiw) 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.
Are you planning a holiday in Lleyn Peninsula? If you are looking for accommodation near Fishermans (Rhiw), camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 34 km (21 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 48 km (30 miles) away, Holyhead, Aberystwyth and Bangor.











