Surf Forecasts:
Fishermans (Rhiw) surf forecast from 7 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 6ft (1.9m), 7s period, WSW swell with 345 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 1.9m 7s and forecast to arrive on Tuesday (Sep 08) 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 1.4m 6s period and expected on Wednesday (Sep 09) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 8th Sep) | 6ft (1.9m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Grab your board, but maybe don't get too excited just yet. Fishermans (Rhiw) is a reef setup that can handle a SW swell, but the next 16 days are looking like a total write-off. There's nothing on the table that's worth paddling out for. The water’s a touch warmer than normal for this time of year, sitting at 63°, but that's about the only positive I can dig up.
We start off the 7th of September with a messy, onshore 25 mph wind from the SW and a lumpy 5 ft swell that's short and weak. The combined wave energy is pretty feeble (134). It's a no-go. The whole first week is a bust. The wind stays howling from the wrong directions, or it's cross-shore, and the swell is tiny and weak. Wednesday the 9th offers a brief moment of clean 2 ft surf with a moderate breeze, but it's barely a ripple. The energy is a pathetic 31. The 10th and 11th don't get any better. Saturday the 12th gets a bit of a bump in energy with a 4 ft swell (91), but it's onshore and messy rain.
The second week rolls around and it's the same story. Sunday the 13th has a clean 3 ft swell (63) but it's still a shadow of what you'd want. The 14th through the 16th are painfully small, with combined energy readings dropping into the single digits. The 17th of September is almost laughable – glassy conditions with a 1 ft swell from the SE, but the energy is only 3. It's a lake. The 22nd of September shows a late spike with a 5 ft WSW swell (151) but it's accompanied by a strong cross-shore wind of 25 mph, making it a total mess. That's more of a kite-surfing setup than a paddle-surfing one.
Honestly, mate, I'm calling it a drought. There's nothing to recommend, not even a shadow of a chance. A blank run like this for the area is a real bummer, but it happens. The forecasts can always change, but right now, there's no reason to get wet.
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 13°C on Mon night). Winds decreasing (near gales from the SW on Mon afternoon, light winds from the SW by Wed afternoon). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sat afternoon. Very mild (max 17°C on Thu night, min 13°C on Sat night). Winds increasing (calm on Fri night, strong winds from the SSW by Sat afternoon). | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 | WSW 7 | W 5 | W 5 | WSW 6 | SW 8 | SW 8 | SW 8 | SW 4 | SW 5 | SW 7 | SW 8 | SW 8 | SW 8 | SW 7 | SW 5 | WSW 7 | WSW 6 | WSW 6 | SW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 134 | 345 | 98 | 88 | 22 | 31 | 31 | 15 | 31 | 86 | 155 | 65 | 32 | 22 | 8 | 90 | 165 | 63 | 27 | 9 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross | cross-off | cross-off | cross-on | on | on | on | cross-on | cross-off | cross-off | on | on | on | cross | cross-off | cross-on | on |
High Tide | 6:01PM3.28m | 6:41AM3.22m | 7:03PM3.65m | 7:36AM3.52m | 7:53PM4.02m | 8:20AM3.78m | 8:36PM4.30m | 9:01AM3.98m | 9:16PM4.46m | 9:39AM4.09m | 9:55PM4.48m | 10:15AM4.11m | 10:32PM4.37m | |||||||
Low Tide | 1:21AM0.71m | 1:43PM0.77m | 2:16AM0.35m | 2:31PM0.47m | 3:02AM0.05m | 3:14PM0.23m | 3:43AM-0.12m | 3:53PM0.09m | 4:21AM-0.15m | 4:29PM0.06m | 4:55AM-0.05m | 5:03PM0.13m | ||||||||
 |  |  | |  |  | |  | | | | | | |  |  | | | | | |
 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:46 | — | — | 6:48 | — | — |
 | 7:53 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — |
mm | 1 | 4 | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | 7 | — | — | — | — |
Temp °C | 17 | 15 | 14 | 16 | 15 | 13 | 14 | 15 | 16 | 16 | 17 | 14 | 15 | 14 | 15 | 16 | 17 | 13 | 14 | 16 |
Feels °C | 8 | 6 | 7 | 9 | 8 | 8 | 10 | 10 | 9 | 9 | 14 | 9 | 12 | 13 | 8 | 10 | 12 | 7 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | WSW 6 | SW 8 | NW 5 | SW 8 | SW 7 | W 8 | SW 7 | SW 8 | SW 8 | SW 8 | SW 7 | W 8 | — | WSW 6 | WSW 6 | SW 6 |
| kJ | — | — | — | — | 22 | 31 | 12 | 15 | 2 | 1 | 155 | 65 | 32 | 22 | 8 | 1 | — | 63 | 27 | 9 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 9 | — | SW 8 | NNW 4 | — | — | — | — | — | NNW 4 | — | — | — | — | — | NNW 4 |
| kJ | — | — | — | — | 3 | — | 31 | 2 | — | — | — | — | — | 1 | — | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | WSW 7 | W 5 | W 5 | NW 6 | NW 5 | NW 4 | SW 3 | SW 4 | SW 5 | SW 7 | NW 4 | NW 4 | — | SSW 3 | SW 5 | WSW 7 | NW 5 | NW 4 | — |
| kJ | 134 | 345 | 98 | 88 | 124 | 43 | 4 | 3 | 31 | 86 | 97 | 16 | 11 | — | 8 | 90 | 165 | 13 | 12 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 276 | 257 | 129 | 498 | 129 | 137 | 7 | 188 | 286 | 296 | 7 | 129 | 142 | 114 | 249 | 297 | 257 | 296 | 129 | 232 |
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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