
Surf Forecasts:
Fishermans (Rhiw) surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 4AM (local time) - 3.5ft (1.1m), 7s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 1AM (local time) - 7ft (2.2m), 7s period, WSW swell with 490 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 4AM (local time) - 3.5ft (1.1m), 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 Sunday (Sep 13) at 4AM. The primary swell is predicted to be 1.1m 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 2.2m 7s and forecast to arrive on Saturday (Sep 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Wednesday (Sep 16) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 13th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 4AM (Sun 13th Sep) | 3.5ft (1.1m) 7s |
| Most Powerful | 1AM (Sat 19th Sep) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it for Fishermans (Rhiw).
Look, I’ll be honest with you – the next 16 days are a real mixed bag, and mostly a flat, frustrating stretch. We’ve got a tiny little window of something on the weekend of the 12th, but it’s messy and blown out. After that, it’s a long, drawn-out dry spell.
Starting off, Friday the 11th. We’ve got some tiny little waves, only 2 ft from the SW with a short 7 second period. The combined energy is weak at 47. Wind is a cross-off from the NW at 12 mph, so the surface is clean, but there’s just not enough push to make it worthwhile. The water is sitting at 63°, which is a touch warmer than normal for this time of year.
Saturday the 12th is where it gets a bit more interesting, but it’s not pretty. The swell bumps up to 6 ft in the morning from the SW, but the period is a dismal 6 seconds, and it’s accompanied by a strong onshore wind from the SW at 25 mph. Combined energy is 236, so there’s some grunt, but it’s a total mess. By the afternoon, the swell pushes 7 ft, and the wind is cross-on at 22 mph. The surf will be lumpy and choppy – this is more of a kite-surfing day than a paddle-surfing day.
Then we drop off hard. Sunday the 13th, the swell fades to 2 ft, and although the wind is light and cross-off from the NNW on the morning, there’s no real energy to work with (35 combined energy). The rest of the week and into the next is a slow bleed of tiny, weak swell and mostly poor conditions. The 17th of September has a blip of 5 ft to 6 ft from the WSW with combined energy of 178-200, but the wind is cross-shore and strong, leaving a lumpy cross-chop. No good.
From the 20th of September onwards, we’re looking at nothing but tiny 0.3 ft to 3 ft swells. The glassy conditions on the 20th afternoon and 21st morning are tempting for a beginner to go float around, but there’s barely a ripple. The combined energy drops into single digits and teeny numbers.
There are no standouts here. The entire 16-day run is a bust for surf. The best you can hope for is a very, very small clean wave on the 20th or 21st, but it’s almost flat. It’s rare to see such a long blank run, but it happens. Forecasts can change, but as it stands, keep your board in the car and your expectations low.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sat morning. Very mild (max 18°C on Sun night, min 14°C on Fri night). Winds decreasing (strong winds from the SW on Sat morning, light winds from the WSW by Sun afternoon). | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Mon night. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Winds increasing (light winds from the WNW on Mon night, strong winds from the SW by Wed night). | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 8 | SW 8 | SW 6 | SW 7 | SW 7 | WSW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 6 | WSW 6 | SW 5 | SW 5 | NW 5 | WSW 5 | W 6 | W 5 | W 5 |
Wave Graph | ||||||||||||||||||||
44 | 63 | 284 | 385 | 163 | 54 | 20 | 10 | 49 | 67 | 239 | 52 | 22 | 13 | 7 | 32 | 61 | 178 | 59 | 73 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | on | on | cross-on | cross-off | cross-on | on | cross-on | on | on | cross-off | cross-on | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross |
High Tide | 9:16PM4.46m | 9:39AM4.09m | 9:55PM4.48m | 10:15AM4.11m | 10:32PM4.37m | 10:51AM4.02m | 11:09PM4.13m | 11:26AM3.85m | 11:45PM3.81m | 12:01PM3.59m | 00:22AM3.44m | 12:37PM3.29m | 1:02AM3.07m | |||||||
Low Tide | 4:21AM-0.15m | 4:29PM0.06m | 4:55AM-0.05m | 5:03PM0.13m | 5:27AM0.15m | 5:36PM0.29m | 5:57AM0.42m | 6:07PM0.51m | 6:26AM0.72m | 6:39PM0.77m | 6:56AM1.02m | 7:16PM1.06m | ||||||||
— | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | |
7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:31 | — | — | 7:30 | — | |
mm | — | — | 3 | 2 | — | — | — | — | — | 4 | 7 | — | — | — | — | — | 3 | — | — | — |
Temp °C | 15 | 16 | 16 | 17 | 17 | 15 | 15 | 18 | 17 | 18 | 17 | 14 | 16 | 15 | 14 | 15 | 16 | 14 | 15 | 14 |
Feels °C | 13 | 9 | 9 | 13 | 16 | 14 | 14 | 17 | 15 | 14 | 11 | 9 | 12 | 8 | 8 | 10 | 9 | 6 | 8 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | NW 4 | — | — | — | WSW 6 | SW 6 | SW 6 | — | W 12 | — | SW 6 | NW 4 | SW 5 | SW 5 | NW 5 | — | — | — | — |
44 | 1 | — | — | — | 54 | 20 | 10 | — | 3 | — | 52 | 13 | 13 | 7 | 32 | — | — | — | — | |
Swell 2 Height (m) Direction Period (s) | NW 4 | NNW 4 | — | — | — | — | NNW 4 | — | — | W 8 | — | — | W 11 | W 11 | W 11 | — | — | — | — | — |
6 | 1 | — | — | — | — | 1 | — | — | 1 | — | — | 2 | 2 | 2 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SW 8 | SW 6 | SW 7 | SW 7 | — | — | SSW 2 | SW 5 | SW 6 | SW 6 | WNW 4 | WSW 6 | NW 5 | NW 6 | WSW 5 | WSW 5 | W 6 | W 5 | W 5 |
— | 63 | 284 | 385 | 163 | — | — | 1 | 49 | 67 | 239 | 10 | 22 | 71 | 111 | 8 | 61 | 178 | 59 | 73 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 7 | 240 | 269 | 328 | 285 | 2 | 107 | 136 | 255 | 255 | 249 | 296 | 560 | 296 | 145 | 297 | 635 | 1031 | 575 | 743 |
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.











