Surf Forecasts:
Fishermans (Rhiw) surf forecast from 14 Sep 2026:
- Most powerful swell: Saturday 19 Sep, 1AM (local time) - 5.5ft (1.7m), 6s period, SW swell with 219 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 1.7m 6s 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sat 19th Sep) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s be straight with you. The next couple of weeks are looking pretty grim for anything worth paddling out for. We’ve got a long stretch of small, messy, windblown surf ahead, with only a couple of brief moments that might get the heart beating a little faster. Don’t get your hopes up too much, but keep an eye on the horizon.
Right off the bat, Monday the 14th is a no-go. We're looking at around 3ft of short-period, weak stuff (38 energy) with a 12 mph onshore breeze messing it all up. It’s just a washing machine out there. Tuesday doesn’t offer any relief either, with cross-shore winds and a lumpy sea state. We’re treading water through the middle of the week with tiny, weak waves and onshore flow.
There’s a slight pulse of energy on Saturday the 19th, with the swell bumping up to 6ft (212 energy), but it’s coming with a 22 mph onshore wind. It’s going to be a close-out mess. Unless you’re after a battle, it’s not worth the effort. After that, the bottom really falls out. From Sunday the 20th through to Monday the 28th, we’re looking at a stretch of tiny, inconsistent surf, with most days seeing waves under 2ft and energy readings in the single digits to low teens. There will be some clean, glassy mornings around the 23rd and 26th, but with only 0.7ft on offer, it’s not even enough for a decent log.
Here’s the one bright spot, and it’s a long way off. On Tuesday the 29th, the charts are showing something a little different. The swell direction swings around to the ESE, which is not the usual SW we need here at Fishermans (Rhiw). We’re looking at a 3ft swell with a weak 4-second period. It’s still small, but the wind finally looks favorable, dropping to a light breeze in the afternoon. It’s a long-range call, so don't book the time off work yet, but it’s the only thing on the horizon that looks like it might have a pulse. It’s promising, but a long way out.
The water is sitting at 63°, which is a touch warmer than usual for this time of year, but that’s the only thing that’s out of the ordinary.
Hang in there. It’s a flat spell, but these things never last forever. Forecasts can change, and the ocean always finds a way to surprise you.
Stay salty,
Rusty
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Very mild (max 17°C on Mon morning, min 13°C on Tue night). Winds decreasing (strong winds from the SSW on Mon night, light winds from the W by Wed afternoon). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Sat night, min 13°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 5 | SW 5 | SW 6 | WSW 5 | WSW 5 | SW 6 | WSW 6 | WNW 5 | SW 5 | WSW 6 | W 5 | W 5 | W 5 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 32 | 51 | 212 | 94 | 84 | 34 | 22 | 0 | 49 | 155 | 75 | 77 | 44 | 54 | 219 | 212 | 178 | 109 | 47 | 27 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross | cross | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross-on | on | cross-on | cross-on | on | on | on | on | on |
High Tide | 10:51AM4.02m | 11:09PM4.13m | 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 | ||||||||
Low Tide | 5:36PM0.29m | 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 | ||||||||
 | |  | |  |  | |  | | | | | |  |  | | | | |  |  | |
 | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:37 | — | — | 7:35 | — | — | 7:31 | — | — | 7:30 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — |
mm | — | — | 8 | — | 1 | — | — | — | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 17 | 15 | 16 | 16 | 13 | 15 | 15 | 14 | 15 | 14 | 14 | 15 | 16 | 16 | 17 | 18 | 18 | 18 | 18 |
Feels °C | 16 | 12 | 11 | 8 | 11 | 11 | 6 | 10 | 9 | 7 | 9 | 7 | 10 | 8 | 11 | 13 | 14 | 16 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | W 12 | — | — | — | — | SW 6 | WSW 6 | NNW 5 | NNW 5 | — | — | W 11 | — | NW 4 | — | — | — | W 14 | W 14 | W 14 | SW 5 |
| kJ | 3 | — | — | — | — | 34 | 22 | 36 | 2 | — | — | 3 | — | 3 | — | — | — | 4 | 4 | 4 | 14 |
Swell 2 Height (m) Direction Period (s) | W 12 | — | — | — | — | — | WSW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 |
| kJ | 3 | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | SW 6 | WSW 5 | WSW 5 | NW 5 | NW 6 | WNW 5 | SW 5 | WSW 6 | W 5 | W 5 | W 5 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | — |
| kJ | 32 | 51 | 212 | 94 | 84 | 84 | 136 | 41 | 49 | 155 | 75 | 77 | 44 | 54 | 219 | 212 | 178 | 109 | 47 | 27 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 255 | 255 | 255 | 498 | 498 | 129 | 145 | 297 | 309 | 319 | 498 | 129 | 142 | 366 | 255 | 255 | 255 | 54 | 255 | 255 | 129 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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