Surf Forecasts:
Fishermans (Rhiw) surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 1.5ft (0.4m), 8s period, WSW swell with 27 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 0.4m 8s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Thursday (Aug 06) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 13th Aug) | 1.5ft (0.4m) 8s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, Rusty again. Let’s get the bad news out of the way first.
Honestly, it’s a pretty grim sixteen days at Fishermans (Rhiw). The whole run is a total blank. There’s no surf worth paddling out for, and the set-up is a reef, so it needs a bit more push and direction than what we’re seeing. The first chunk of the window is dead flat, and the only significant swell doesn’t show up until the 19th of August, with a jump in combined energy to 339 (moderate wave energy) and a swell height of 6ft, but the wind is straight onshore from the S, and the period is a short, crumbly 7 seconds. That’s a messy, blown-out mess, not a wave you want to be on.
The water temp is 63°, which is a touch warmer than normal for this time of year, so that’s a small comfort if you’re just standing on the beach. But that’s where it ends. The swell direction is mostly SW or WSW, which is the optimum for the spot, but it’s not enough to save it. The wind is nearly always onshore or cross-onshore, and the wave heights rarely break 2ft. The longest period we see is 12 seconds on the 7th of August, but the swell height is 0.3ft, so it’s a ghost. The 15th of August offers a clean cross-off wind from the NNW, but the swell is only 2ft with a combined energy of 40 (weak), starving the reef.
This is a classic case of the area going quiet. Don’t hold your breath. Sometimes the forecasts shift, but for now, it’s a hard no.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Thu night, min 13°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 16°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | WNW 5 | SW 6 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | WSW 7 | SW 4 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 12 | WSW 10 | WSW 10 | SW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 62 | 16 | 19 | 6 | 5 | 9 | 7 | 3 | 5 | 8 | 6 | 6 | 9 | 8 | 5 | 1 | 1 | 3 | 10 | 9 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | on | glassy | on | on | cross-on | on | on | on | on | glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 2:16PM3.21m | 2:46AM3.30m | 3:26PM3.07m | 4:04AM3.13m | 4:48PM3.08m | 5:29AM3.15m | 6:06PM3.28m | 6:42AM3.33m | 7:10PM3.62m | 7:42AM3.57m | 8:04PM3.98m | 8:33AM3.80m | 8:52PM4.29m | ||||||||
Low Tide | 9:00PM1.14m | 9:50AM1.13m | 10:26PM1.23m | 11:20AM1.18m | 00:06AM1.13m | 12:46PM1.04m | 1:25AM0.83m | 1:53PM0.78m | 2:27AM0.46m | 2:46PM0.49m | 3:18AM0.13m | 3:32PM0.26m | |||||||||
 |  |  | | |  | | | | | | | | | |  | | | | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 17 | 16 | 15 | 16 | 15 | 16 | 16 | 17 | 18 | 18 | 17 | 19 | 19 | 19 | 20 | 19 | 19 | 20 | 19 |
Feels °C | 11 | 11 | 16 | 15 | 12 | 14 | 12 | 14 | 14 | 16 | 17 | 18 | 18 | 17 | 18 | 18 | 19 | 18 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 13 | NW 5 | NNW 4 | SW 4 | SW 4 | SW 4 | SW 11 | SW 4 | WSW 7 | SW 7 | SW 4 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 10 | WSW 10 | SW 9 |
| kJ | 3 | 11 | 2 | 4 | 3 | 9 | 5 | 2 | 5 | 7 | 3 | 6 | 9 | 8 | 5 | 1 | 1 | 1 | 10 | 9 | 21 |
Swell 2 Height (m) Direction Period (s) | — | SW 6 | SW 12 | — | — | SW 12 | W 11 | SW 8 | — | — | SW 6 | W 12 | — | — | — | — | — | W 12 | SW 6 | WSW 5 | WSW 4 |
| kJ | — | 16 | 6 | — | — | 5 | 2 | 3 | — | — | 6 | 3 | — | — | — | — | — | 3 | 1 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | W 12 | — | SW 12 | W 12 | — | — | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | 6 | 3 | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 5 | — | SW 4 | — | SW 4 | — | SW 4 | — | SW 3 | SW 4 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 62 | — | 19 | — | 5 | — | 7 | — | 3 | 8 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 297 | 309 | 305 | 297 | 297 | 292 | 292 | 292 | 292 | 297 | 292 | 297 | 292 | 292 | 307 | 308 | 330 | 114 | 107 | 297 | 129 |
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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