Surf Forecasts:
Fishermans (Rhiw) surf forecast from 27 Aug 2026:
- Best quality surf: Saturday 29 Aug, 4PM (local time) - 3.5ft (1.1m), 7s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 2 Sep, 10PM (local time) - 6.5ft (2.0m), 7s period, SW swell with 352 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 4PM (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 Saturday (Aug 29) at 4PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.3m and 3s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Fishermans (Rhiw) in the next 16 days are 2.0m 7s and forecast to arrive on Wednesday (Sep 02) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Aug 29) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sat 29th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 4PM (Sat 29th Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 10PM (Wed 2nd Sep) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's have a look at what's on the cards for Fishermans (Rhiw).
Straight up, this is a tough stretch. We're looking at a long, dry spell with very little to get excited about. The first real hint of anything surfable doesn't show up until the end of the first week, and even then, it's a cautious call. The water temp is about average for this time of year, nothing unusual there.
The opening days are a write-off. That Thursday morning, the 27th of August, is flat with a tiny 0.3ft swell and cross-off wind – basically a lake. The afternoon goes glassy, but still only 0.3ft. Friday and Saturday stay in the poor category, with Saturday morning seeing a bump to 4ft but trashed by a strong 30 km/h onshore wind. Saturday afternoon, the 29th, offers the first glimmer: a glassy 4ft SW swell (7-second period) with moderate wave energy (134). It's surfable, but ordinary. The combined energy is weak to moderate, so it's not going to have much push.
Sunday the 30th through to the following weekend is pretty barren. The wind is often onshore or messy, and the swell struggles to get above 3ft. The 7th of September (Monday) morning is the first real standout, but it's still a marginal call. We see a 7ft WNW swell, which is a solid size, but with a short 6-second period and strong cross-off wind. The combined energy hits 395, which is moderate. This is a jump in size, but that short period means it'll lack shape and power, making it a bit of a messy, bumpy surf. At 7ft, we're getting into expert territory only.
After that, it's back to small stuff until the 11th of September (Friday morning). That's our best bet, but it's a long way out. The forecast shows a 8ft WSW swell, with an 8-second period, clean cross-off wind from the NNW, and strong combined energy of 538. This is a bigger, more powerful swell, but still short-period and a bit raw. Again, over 8ft, it's strictly for experienced surfers. The direction is from the WSW, which is a little off the optimum SW, but it's still a solid swell. The two standouts, the 7th and 11th, are both clean but with short-period, powerful swells. This setup is more interesting for kite surfing than paddle surfing, as the short period and strong wind will make for bumpy, hard-to-read waves.
So, to sum it up: there's a lot of waiting. The 7th of September is a possibility, but the 11th of September is the one to circle on the calendar – promising but uncertain this far out. The rest of the time, the board can stay in the bag.
Rusty.
Short Range ForecastHeavy rain (total 50mm), heaviest during Thu afternoon. Warm (max 21°C on Wed night, min 16°C on Thu afternoon). Winds increasing (calm on Thu afternoon, fresh winds from the SSE by Fri night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue morning. Very mild (max 17°C on Sun afternoon, min 15°C on Sat night). Winds decreasing (fresh winds from the WNW on Sat night, light winds from the WNW by Mon afternoon). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 12 | SW 12 | SW 3 | SW 4 | SW 6 | SW 5 | SW 6 | SW 7 | SW 9 | SW 9 | SW 8 | SW 7 | SW 8 | SW 8 | SW 8 | SW 6 | SW 6 | SW 5 | SW 5 | SW 6 | WSW 7 |
Wave Graph | |||||||||||||||||||||
6 | 6 | 5 | 20 | 19 | 84 | 91 | 132 | 159 | 91 | 53 | 43 | 61 | 37 | 31 | 31 | 16 | 35 | 42 | 149 | 211 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | cross-on | on | on | glassy | cross | on | on | on | cross-off | cross | cross-on | cross-on | cross-off | cross-off | glassy | on | on |
High Tide | 8:46AM3.48m | 8:59PM3.92m | 9:16AM3.67m | 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 | |||||||
Low Tide | 3:26PM0.50m | 3:53AM0.30m | 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 | ||||||||
6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | |
— | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | |
mm | 4 | 16 | 10 | 4 | — | 8 | 5 | 2 | — | — | — | 1 | — | — | 2 | 3 | — | — | — | — | 2 |
Temp °C | 17 | 17 | 17 | 16 | 18 | 17 | 18 | 17 | 16 | 16 | 17 | 17 | 15 | 16 | 17 | 16 | 17 | 16 | 14 | 16 | 17 |
Feels °C | 16 | 18 | 17 | 15 | 16 | 14 | 14 | 15 | 10 | 13 | 16 | 15 | 13 | 14 | 14 | 11 | 14 | 11 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 6 | SSW 7 | W 12 | SW 6 | — | — | SW 7 | SW 9 | NNW 4 | SW 8 | SW 7 | SW 8 | SW 8 | SW 8 | SW 6 | NW 4 | W 16 | W 16 | — | SW 15 |
2 | 1 | 4 | 3 | 19 | — | — | 132 | 159 | 1 | 53 | 43 | 61 | 37 | 31 | 31 | 2 | 5 | 5 | — | 9 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | W 12 | — | — | — | — | — | — | NNW 4 | — | W 12 | SW 11 | WSW 11 | NNW 4 | W 11 | W 8 | W 16 | — | — | W 15 |
6 | 6 | 3 | — | — | — | — | — | — | 1 | — | 3 | 5 | 11 | 1 | 2 | 1 | 5 | — | — | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 3 | ESE 2 | SW 3 | SW 4 | WNW 3 | SW 5 | SW 6 | SSE 3 | NW 5 | SW 9 | — | — | — | NW 4 | WSW 4 | NW 4 | SW 6 | SW 5 | SW 5 | SW 6 | WSW 7 |
2 | 1 | 5 | 20 | 1 | 84 | 91 | 2 | 21 | 91 | — | — | — | 14 | 10 | 6 | 16 | 35 | 42 | 149 | 211 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 298 | 184 | 184 | 195 | 305 | 139 | 96 | 0 | 123 | 7 | 7 | 7 | 7 | 7 | 302 | 318 | 317 | 129 | 2 | 453 | 297 |
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.











