Surf Forecasts:
Fishermans (Rhiw) surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 4.5ft (1.3m), 5s period, W swell with 87 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 1.3m 5s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Aug 06) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 5th Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, grab your wettie, let’s see what we’ve got.
Honestly, the next couple of weeks are looking pretty grim for the wave count. We’ve got a long, flat stretch coming up, and there just isn't much to get excited about. It looks like the ocean is taking a breather, and we’re going to have to sit through a fair bit of nothing before we see anything with a pulse.
The first real sign of life doesn’t show up until Friday the 14th. There’s a small pulse of swell pushing in, but it’s weak and short-period. The morning is looking glassy with the wind dropping off, and we might see a few ankle-biters in the 4ft range. The afternoon steps it up slightly to 4ft, but the period is still a weak 5 seconds, so it’s going to be soft and crumbly to say the least. It’s surfable, but you’ll be scratching for the good ones.
The weekend is where the only real highlight of this whole stretch sits. Saturday the 15th, the morning looks like our best bet. The swell is up a touch to 5ft, still a bit short in the period, but the wind is light, offshore, and the conditions are clean. Fishermans (Rhiw) is fairly consistent, so there should be a few rides to be had. The wave energy is still weak to moderate at 110, but it’s the best we’re going to see. Later that afternoon, the wind swings a bit, and things get messy again.
After that, it’s back to the flat spell. The following week, from the 16th right through to the 19th, is mostly small and poor. There’s a bump of short-period energy on the 17th, but the wind is onshore and it’s going to be lumpy and pretty ordinary. The second week is just a write-off, really. A few small, clean days pop up mid-week, but the swell is tiny and the periods are too short for anything meaningful.
The water temp is sitting at 62°F, which is a touch warmer than average for this time of year, so you won’t need the thickest suit, but you’ll know about it on a long wait.
So, there you have it. A long, dry spell with a very short window of opportunity on the morning of the 15th. If you’re desperate, that’s your moment. Otherwise, save your energy for the next proper swell.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Tue night, min 13°C on Wed night). Winds decreasing (fresh winds from the WNW on Wed night, light winds from the SW by Thu afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Very mild (max 17°C on Sat morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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) | W 5 | W 5 | W 5 | SW 6 | SW 6 | SW 4 | SW 5 | W 12 | SW 4 | SSW 4 | SW 4 | WSW 5 | WSW 7 | SW 6 | WSW 5 | SW 6 | WSW 4 | SW 5 | SW 5 | WSW 5 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 63 | 78 | 61 | 32 | 16 | 23 | 7 | 3 | 9 | 7 | 29 | 45 | 29 | 18 | 46 | 24 | 11 | 10 | 6 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | on | cross-on | on | on | on | on | on | cross-on | cross | cross-on | cross-on | cross-off | cross-off | cross-on | cross-on | glassy | cross-off |
High Tide | 1:21PM3.39m | 1:44AM3.54m | 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 | ||||||||
Low Tide | 7:54AM0.76m | 8:01PM0.97m | 8:43AM0.96m | 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 | |||||||
 |  |  |  | |  | | | | |  |  | | | | | | | | | | |
 | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 14 | 15 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 17 | 16 | 17 | 17 | 17 | 19 | 20 |
Feels °C | 9 | 10 | 10 | 10 | 11 | 14 | 13 | 13 | 14 | 13 | 12 | 15 | 14 | 13 | 14 | 14 | 16 | 16 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | — | NW 5 | W 13 | SW 6 | NW 5 | NNW 4 | SW 4 | — | SW 12 | SW 11 | SW 8 | SW 8 | WSW 7 | NW 4 | — | NW 4 | SW 5 | SW 5 | SW 5 | WSW 5 | SW 4 |
| kJ | — | 25 | 3 | 32 | 12 | 2 | 7 | — | 5 | 5 | 3 | 14 | 29 | 2 | — | 6 | 7 | 10 | 6 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 13 | SW 6 | SW 12 | — | W 12 | W 12 | W 11 | — | — | — | SW 12 | — | — | NW 4 | — | — | SW 6 | SW 6 |
| kJ | — | — | — | 3 | 16 | 6 | — | 3 | 3 | 3 | — | — | — | 6 | — | — | 1 | — | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 12 | — | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 3 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | W 5 | NW 5 | WSW 6 | SW 4 | SW 5 | SW 4 | SW 4 | SSW 4 | SW 4 | WSW 5 | NW 4 | SW 6 | WSW 5 | SW 6 | WSW 4 | — | — | — | — |
| kJ | 63 | 78 | 61 | 47 | 12 | 23 | 5 | 3 | 9 | 7 | 29 | 45 | 5 | 18 | 46 | 24 | 11 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 498 | 464 | 535 | 317 | 305 | 305 | 309 | 297 | 292 | 292 | 297 | 146 | 297 | 285 | 308 | 308 | 308 | 292 | 292 | 292 | 291 |
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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