Surf Forecasts:
Fishermans (Rhiw) surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 1AM (local time) - 4ft (1.2m), 6s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 10PM (local time) - 7ft (2.1m), 7s period, SW swell with 384 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 1AM (local time) - 4ft (1.2m), 6s 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 20) at 1AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.1m and 14s. Another secondary swell of 0.9m and 6s is also forecast. 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 2.1m 7s and forecast to arrive on Friday (Sep 18) 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 1.3m 5s period and expected on Wednesday (Sep 16) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 20th Sep) | 4ft (1.2m) 6s |
| Best Surf | 1AM (Sun 20th Sep) | 4ft (1.2m) 6s |
| Most Powerful | 10PM (Fri 18th Sep) | 7ft (2.1m) 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). I've taken a look at the charts and there's a story to tell, and you're not gonna like the first chapter. Plain and simple, for the first week and a half, the surf is junk. We're looking at a gap of nearly ten days before anything even vaguely rideable shows up. There's swell at times, sure, but the wind is absolutely trashing it. For any kite surfers watching, the setup from mid-month with those consistent fresh cross-shore and cross-onshore winds might get you going, but for a paddle surfer, it's a write-off until things change.
So, for the first chunk, from Tuesday the 15th right through to maybe the 24th, it's a no-go. The wind is just a nightmare—mostly fresh, strong cross-onshore stuff that's making the surf lumpy, chopped up, and messy. There were a couple of moments around the 19th with a bump in energy (combined energy of all swells directed here hitting 286) with waist-high 2 ft from the SW, but that horrible onshore wind killed it. You just don't want to be out there.
Alright, now pay attention. The forecast finally gives us a glimmer of hope right at the end of the run. Sunday the 26th of September is the one you want to circle. It’s not a big day, but for this location, it's the standout. That morning we get a gentle offshore breeze from the NNE with a clean little 0.3 ft wave. It's going to be glassy and clean. The swell direction from the W (optimum for this spot) combined with that offshore wind means the reef will be working as it should. The combined energy is tiny, just 5, but for a few lucky locals, it’ll be a beautiful morning for a log.
The following afternoon on the 26th holds some similar promise—moderate cross-offshore wind and clean lines from a long-period 14-second groundswell, though again the size is tiny at 0.3 ft. Still, a clean wave at Fishermans is a treat.
If you look further out, the 30th of September shows a touch more energy coming through, 25 on the energy scale, with a period of 10 seconds from the SW, but the wind is cross-shore, so it won't be as clean as that Sunday morning. Keep an eye on it, but your best bet, and I mean your only real bet in this 16-day window, is that lovely, clean Sunday morning on the 26th. Get on it.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Very mild (max 18°C on Mon night, min 13°C on Tue night). Mainly strong winds. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Fri night. Very mild (max 19°C on Sat afternoon, min 13°C on Thu night). Winds decreasing (strong winds from the SSW on Fri afternoon, calm by Sat night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | WSW 6 | W 5 | SW 6 | SW 7 | WSW 5 | SW 5 | WSW 7 | W 5 | W 6 | W 5 | SW 5 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SW 4 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 113 | 82 | 30 | 13 | 20 | 110 | 181 | 106 | 134 | 56 | 67 | 325 | 286 | 279 | 116 | 46 | 24 | 46 | 25 | 16 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | on | on | on | cross-on | on | on |
High Tide | 11:26AM3.85m | 11:45PM3.81m | 12:01PM3.59m | 00:22AM3.44m | 12:37PM3.29m | 1:02AM3.07m | 1:20PM2.97m | 1:52AM2.71m | 2:21PM2.69m | 3:20AM2.46m | 4:17PM2.58m | 5:27AM2.49m | 5:57PM2.77m | ||||||||
Low Tide | 5:57AM0.42m | 6:07PM0.51m | 6:26AM0.72m | 6:39PM0.77m | 6:56AM1.02m | 7:16PM1.06m | 7:33AM1.31m | 8:07PM1.34m | 8:31AM1.56m | 9:31PM1.55m | 10:10AM1.67m | 11:23PM1.54m | 11:53AM1.55m | 00:44AM1.32m | |||||||
 |  |  | | | | | |  | |  |  | |  |  |  | | | | | | |
 | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — |
 | — | 7:35 | — | — | 7:31 | — | — | 7:30 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — |
mm | — | 1 | 1 | — | — | 4 | — | — | — | — | 4 | 7 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 14 | 15 | 15 | 14 | 16 | 14 | 15 | 14 | 16 | 17 | 19 | 17 | 15 | 16 | 18 | 17 | 17 | 16 |
Feels °C | 9 | 12 | 9 | 8 | 10 | 9 | 7 | 9 | 7 | 9 | 7 | 10 | 13 | 16 | 15 | 13 | 14 | 18 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 6 | SW 5 | NW 5 | — | — | — | — | NW 5 | NW 5 | — | — | — | SW 6 | SW 6 | SW 6 | W 14 | W 13 | — | — |
| kJ | — | — | 30 | 7 | 27 | — | — | — | — | 20 | 3 | — | — | — | 116 | 46 | 24 | 4 | 3 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 7 | W 10 | — | — | — | — | — | — | — | — | — | W 14 | NW 4 | — | — | W 13 | W 13 | — |
| kJ | — | — | — | 13 | 8 | — | — | — | — | — | — | — | — | — | 4 | 2 | — | — | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | W 5 | NW 5 | NW 5 | WSW 5 | SW 5 | WSW 7 | W 5 | W 6 | W 5 | SW 5 | SW 7 | SW 7 | SW 7 | WSW 6 | — | — | SW 5 | SW 5 | SW 4 | SW 4 |
| kJ | 113 | 82 | 47 | 77 | 20 | 110 | 181 | 106 | 134 | 56 | 67 | 325 | 286 | 279 | 69 | — | — | 46 | 25 | 16 | 14 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 498 | 498 | 129 | 145 | 297 | 317 | 320 | 498 | 129 | 275 | 317 | 297 | 366 | 7 | 0 | 107 | 137 | 129 | 129 | 248 | 114 |
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.
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