Surf Forecasts:
Fishermans (Rhiw) surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 4PM (local time) - 3.5ft (1.0m), 9s period, SW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 3.5ft (1.1m), 11s period, SW swell with 298 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 4PM (local time) - 3.5ft (1.0m), 9s 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 Friday (Aug 28) at 4PM. The primary swell is predicted to be 1.0m and 9s period. 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 1.1m 11s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Fri 28th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 4PM (Fri 28th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 1AM (Fri 28th Aug) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, let’s talk about Fishermans (Rhiw). It’s a reef break, beginner-friendly, and open to the southwest. The water’s at 65°F, which is way warmer than usual for this time of year – a nice surprise.
We’ve got a long stretch of nothing good coming. From now until the end of August, the swell is tiny and the wind is messy. The 22nd through the 25th are all under 0.7ft with poor conditions. The 26th has a glassy afternoon, but only 0.7ft of weak, short-period swell – not worth it.
The 27th and 28th see a little bump, but the wind is onshore or cross-shore. By Friday the 28th afternoon, we get a glassy window with 3ft swell from the SW, period 9 seconds, and the combined energy hits 149 (moderate). It’s surfable, but just barely.
Then it gets rough. Saturday the 29th through Monday the 31st brings strong wind, cross-shore conditions, and a messy 5ft to 6ft windswell with a period of only 5 to 6 seconds. That’s choppy and lumpy – better for kiteboarding.
The real standout is Friday the 4th of September afternoon. We’re looking at 6ft of SW swell, period 6 seconds, combined energy of 282 (strong), and clean conditions with a NNW cross-off breeze at 9 mph. The wind is offshore, so the reef should be clean and fun. It’s a few weeks out, so don’t book your trip yet, but it’s the best wave in the whole 16-day window.
The 5th and 6th of September then fall apart with strong onshore winds and tiny swell.
So, the first week and a half is a bust. The only real hope is that Friday the 4th of September afternoon. Keep your fingers crossed.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon afternoon, min 12°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 49mm), heaviest during Wed night. Warm (max 21°C on Tue afternoon, min 15°C on Thu night). Winds increasing (calm on Wed afternoon, strong winds from the SSE by Thu afternoon). | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 15 | SW 15 | SW 14 | SW 14 | WSW 11 | WSW 10 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 8 | SSW 8 | SSW 7 | SE 3 | SW 7 | SW 11 | SW 9 | SW 9 | SW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 9 | 8 | 8 | 7 | 11 | 9 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 15 | 298 | 217 | 149 | 36 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | cross-off | cross | off | cross | cross-off | off | cross-off | cross | glassy | cross-off | cross-off | cross-on | on | cross-on | glassy | cross |
High Tide | 5:01PM2.65m | 5:49AM2.62m | 6:22PM2.82m | 6:54AM2.80m | 7:16PM3.08m | 7:39AM3.02m | 7:55PM3.37m | 8:14AM3.26m | 8:28PM3.66m | 8:46AM3.48m | 8:59PM3.92m | 9:16AM3.67m | 9:29PM4.12m | |||||||
Low Tide | 00:02AM1.51m | 12:37PM1.49m | 1:19AM1.30m | 1:36PM1.24m | 2:08AM1.03m | 2:17PM0.97m | 2:46AM0.75m | 2:53PM0.72m | 3:20AM0.50m | 3:26PM0.50m | 3:53AM0.30m | 3:59PM0.35m | ||||||||
 |  | | | |  |  |  | | | | | |  |  |  |  |  | |  | |
 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — |
 | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:19 | — | — | 8:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 13 | 3 | 14 | 10 | — | 1 |
Temp °C | 14 | 13 | 14 | 16 | 16 | 19 | 20 | 20 | 18 | 21 | 21 | 19 | 21 | 20 | 17 | 17 | 17 | 16 | 17 | 16 |
Feels °C | 8 | 8 | 13 | 13 | 13 | 18 | 16 | 15 | 15 | 20 | 15 | 18 | 21 | 19 | 16 | 16 | 12 | 14 | 18 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | NNW 4 | SW 14 | NNW 3 | WSW 10 | SW 9 | SW 13 | SW 13 | — | SW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SW 7 | SW 11 | SW 9 | SW 9 | SW 8 |
| kJ | 9 | 8 | 2 | 7 | 2 | 9 | 3 | 7 | 7 | — | 3 | 6 | 6 | 5 | 4 | 15 | 298 | 217 | 149 | 36 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 14 | W 9 | WSW 11 | SW 14 | — | SW 9 | SW 8 | SW 8 | — | SW 12 | — | — | W 12 | SSE 3 | SW 4 | — | — | — |
| kJ | 6 | 6 | 8 | 2 | 11 | 8 | — | 3 | 3 | 3 | — | 6 | — | — | 3 | 1 | 2 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 5 | W 12 | W 9 | — | SW 14 | — | SW 13 | — | SE 4 | SW 13 | SW 13 | — | W 12 | W 12 | — | WSW 8 | — | — | — | — |
| kJ | 1 | 3 | 2 | — | 7 | — | 7 | — | 1 | 7 | 7 | — | 3 | 3 | — | 7 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 3 | — | NNW 2 | — | SE 3 | — | ESE 4 | E 3 | — | E 3 | SE 3 | — | — | SE 3 | S 3 | — | — | — | W 4 |
| kJ | 13 | 4 | — | 1 | — | 1 | — | 13 | 5 | — | 8 | 2 | — | — | 5 | 1 | — | — | — | 21 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 309 | 184 | 216 | 251 | 114 | 292 | 295 | 268 | 256 | 216 | 257 | 282 | 134 | 114 | 114 | 257 | 205 | 33 | 0 | 317 |
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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