Surf Forecasts:
Fishermans (Rhiw) surf forecast from 28 Aug 2026:
- Best quality surf: Thursday 3 Sep, 10PM (local time) - 5.5ft (1.7m), 7s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 10PM (local time) - 8ft (2.4m), 7s period, SW swell with 629 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 10PM (local time) - 5.5ft (1.7m), 7s period with SW swell.
Best Forecast Surf Conditions for Fishermans (Rhiw) this week:
The surf forecast for Fishermans (Rhiw) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 10PM. The primary swell is predicted to be 1.7m and 7s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Fishermans (Rhiw) in the next 16 days are 2.4m 7s and forecast to arrive on Wednesday (Sep 02) 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 1.2m 6s period and expected on Monday (Aug 31) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 3rd Sep) | 5.5ft (1.7m) 7s |
| Best Surf | 10PM (Thu 3rd Sep) | 5.5ft (1.7m) 7s |
| Most Powerful | 10PM (Wed 2nd Sep) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line for Fishermans (Rhiw).
Straight up, I’m not gonna sugarcoat it: the next couple of weeks look pretty grim for a paddle. We’ve got a long, drawn-out stretch of small, choppy, or onshore slop with very little to get excited about. The first real block of surfable days is a total blank, so don’t even bother waxing up until we get past the first week of September. The water’s sitting at about 65°, which is a good 5° warmer than normal for this time of year – that’s a pretty notable anomaly and feels more like a late summer bath.
Let’s run through it. From Friday the 28th of August right through to the morning of Tuesday the 8th of September, it’s a dead loss. Swell heights barely scrape past 3 ft on most days, and when they do get a pulse, the wind is either howling onshore or cross-onshore, turning any hope into a frothy mess. The combined energy is weak, reading single to low double digits (7 to 134) most of that time. The best you can say about Saturday the 29th afternoon is a clean offshore breeze, but the swell is a pathetic 2 ft – not worth getting wet for.
There’s a little spike around Wednesday the 2nd of September afternoon, with a 7 ft SW swell, but the wind is a fresh onshore from the SSW, hammering it. That’s a strong wave energy reading of 295, but it’s a blown-out, lumpy mess. Thursday the 3rd is even worse – a near gale from the SW hits 31 mph with a 6 ft swell. That’s not a surf day; that’s a day to watch the chaos from the cliff. For anyone thinking of kiting, that setup might actually have some appeal.
The only faint glimmer in the whole run arrives on Saturday the 12th of September. We get a 7 ft SW swell with some decent energy (407), and the wind swings NW to a clean cross-off in the afternoon. That’s the standout. It’s still a long way off, so don’t book the trip yet – forecasts can wobble – but if it holds, it’s the one session where Fishermans might actually turn it on. For experts only at that size, and it’s a reef, so it’ll handle that groundswell better than a beach break. But the rest of the week after that is a write-off again.
So, bottom line: the 16-day window is mostly a bust for paddle surfing. A blank run like this is unusual but not unheard of here. It tends not to stay this poor for long, and forecasts can change, but for now, I’d be waiting for that Saturday the 12th afternoon window and keeping my fingers crossed.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Sat morning. Very mild (max 17°C on Fri afternoon, min 15°C on Sun night). Winds increasing (light winds from the W on Fri morning, fresh winds from the S by Sun afternoon). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Very mild (max 18°C on Mon night, min 13°C on Tue night). Mainly strong winds. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 10 | SW 8 | SSW 5 | SW 8 | W 5 | WSW 8 | WSW 5 | WSW 6 | SW 6 | SW 4 | SW 5 | SW 6 | SW 8 | WSW 8 | SW 6 | WSW 7 |
Wave Graph | |||||||||||||||||||||
6 | 10 | 51 | 46 | 18 | 154 | 57 | 67 | 186 | 160 | 123 | 44 | 48 | 16 | 23 | 83 | 295 | 503 | 292 | 209 | 237 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross | off | cross | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | on | off | cross-on | on | cross-on | on | on | cross-on |
High Tide | 9:29PM4.12m | 9:47AM3.83m | 10:01PM4.26m | 10:18AM3.93m | 10:34PM4.30m | 10:52AM3.97m | 11:09PM4.25m | 11:28AM3.91m | 11:47PM4.09m | 12:08PM3.76m | 00:30AM3.83m | 12:53PM3.53m | 1:20AM3.49m | ||||||||
Low Tide | 3:59PM0.35m | 4:26AM0.17m | 4:32PM0.27m | 4:59AM0.12m | 5:04PM0.26m | 5:32AM0.17m | 5:38PM0.34m | 6:05AM0.31m | 6:13PM0.48m | 6:41AM0.53m | 6:51PM0.67m | 7:22AM0.79m | 7:39PM0.91m | ||||||||
6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:31 | — | — | |
— | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | |
mm | 2 | — | 1 | 8 | — | 2 | 4 | 6 | 2 | — | — | — | — | 1 | 3 | — | 3 | — | — | — | 3 |
Temp °C | 16 | 17 | 17 | 16 | 17 | 16 | 17 | 16 | 16 | 15 | 17 | 18 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 18 | 16 |
Feels °C | 15 | 16 | 14 | 14 | 16 | 14 | 13 | 11 | 12 | 10 | 14 | 14 | 12 | 12 | 13 | 13 | 10 | 13 | 9 | 11 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | — | SW 6 | SW 6 | SW 10 | SW 8 | SW 8 | SW 8 | — | WSW 8 | SW 8 | WSW 6 | NW 4 | W 16 | — | — | — | — | — | SW 14 |
6 | 10 | — | 46 | 18 | 154 | 57 | 18 | 186 | — | 123 | 17 | 7 | 6 | 5 | — | — | — | — | — | 8 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | NW 4 | — | WSW 8 | — | — | — | — | — | NW 4 | W 16 | — | — | — | — | — | — |
— | — | — | — | — | 5 | — | 14 | — | — | — | — | — | 4 | 5 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 2 | SW 3 | SW 5 | SE 2 | — | — | SSW 4 | SSW 5 | — | W 5 | NW 5 | WSW 5 | WSW 6 | SW 6 | SW 4 | SW 5 | SW 6 | SW 8 | WSW 8 | SW 6 | WSW 7 |
1 | 1 | 51 | 1 | — | — | 11 | 67 | — | 160 | 41 | 44 | 48 | 16 | 23 | 83 | 295 | 503 | 292 | 209 | 237 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 303 | 317 | 309 | 44 | 129 | 7 | 205 | 305 | 7 | 635 | 7 | 129 | 146 | 498 | 195 | 292 | 317 | 398 | 292 | 505 | 7 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.











