Surf Forecasts:
Fishermans (Rhiw) surf forecast from 3 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 4AM (local time) - 5ft (1.6m), 6s period, WNW swell with 192 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 1.6m 6s and forecast to arrive on Thursday (Aug 06) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s 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 | 4AM (Thu 6th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Right folks, ol' Rusty here. Let's have a look at what the next couple of weeks have in store for us. I'll be honest, looking at the whole picture, it's a tough one.
We're starting with a bit of a blank run. There's nothing to shout about for the first few days. The only break on the radar is Fishermans (Rhiw), a reef setup that's fairly consistent, but it's gonna be a quiet period. The water is sitting at 62°, which is a touch warmer than normal for this time of year.
The first proper chance of a wave doesn't roll in until around Tuesday, the 6th of August. Thursday morning the 6th sees a tiny 2 ft from the SW, but the wind is a clean offshore, so it'll be clean. The combined energy is weak (41). It's not much, but it's the best we've got so far. The size is tiny, so it's safe for beginners.
The real standout, if you can call it that, is a narrow window. Friday, the 7th of August, is a one-of-a-kind moment. You're looking at a glassy morning, with a long-period 0.3 ft swell from the SW (12 seconds). The energy is, well, it's only 14 – barely a ripple. But it's glassy. The wave comment is "poor surf conditions". It's a small, clean session for the dedicated.
After that, it's a long, drawn-out slog. The rest of the first week and into the second week is a mix of strong onshore winds and tiny, weak swells. The combined energy stays well under 100, often dipping into single digits. There's a brief moment on the morning of Sunday the 9th with a clean 2 ft from the WSW (23 energy), but it's gone by the afternoon. Then we get a long period groundswell on the 12th of August, but it's a tiny 0.3 ft from the W with a 12-second period, and the wind is howling cross-onshore, so it's a complete write-off.
The second week is a ghost town. From the 13th of August all the way through to the 18th, we see nothing but tiny, gutless swells, with the biggest being a 3 ft on the 17th afternoon, but it's cross-on and messy. All the scores are a flat zero. It's a tough run for the area.
In short: The best you can hope for is a glassy, tiny session on the morning of Friday the 7th of August. Everything else is a washout. The good news is, Fishermans is fairly consistent, so it tends not to stay this poor for long. Forecasts can change.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon afternoon. Very mild (max 19°C on Mon afternoon, min 13°C on Wed night). Winds increasing (light winds from the NE on Mon afternoon, fresh winds from the W by Wed morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sat afternoon, min 14°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 8 | SW 8 | SW 6 | SW 7 | SW 6 | W 6 | SW 7 | W 6 | SW 6 | WSW 6 | SW 5 | SW 5 | SW 5 | WSW 4 | SW 4 | SW 5 | WSW 5 | WSW 6 | SW 7 | SW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 35 | 32 | 85 | 109 | 92 | 144 | 103 | 157 | 38 | 21 | 7 | 6 | 3 | 32 | 11 | 41 | 56 | 23 | 11 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | on | cross | cross | cross-on | cross | cross-off | cross-on | on | glassy | on | on | on | on | cross-on | cross-off | cross-off | cross-off |
High Tide | 00:13AM3.95m | 12:35PM3.54m | 00:55AM3.78m | 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 | ||||||||
Low Tide | 6:40PM0.64m | 7:14AM0.58m | 7:17PM0.80m | 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 | |||||||
 |  |  |  | | | |  | | |  |  | | | | | | | | | |
 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — |
 | — | 9:08 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — |
mm | 2 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 18 | 17 | 15 | 18 | 16 | 14 | 15 | 16 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 19 | 19 |
Feels °C | 16 | 15 | 16 | 14 | 13 | 8 | 13 | 9 | 10 | 12 | 14 | 12 | 13 | 14 | 13 | 14 | 16 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 7 | — | — | — | NW 5 | — | SW 6 | NW 5 | SW 5 | SW 5 | SW 5 | SW 12 | W 11 | — | SW 8 | WSW 6 | SW 7 | SW 6 |
| kJ | 35 | 32 | 43 | — | — | — | 32 | — | 38 | 27 | 7 | 5 | 3 | 5 | 2 | — | 2 | 23 | 11 | 6 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 13 | WSW 6 | NNW 4 | — | — | — | — | — | — | — | NW 3 | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 21 | 2 | — | — | — | — | — | — | — | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 12 | SW 12 | SW 12 | W 12 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 6 | 6 | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 6 | SW 7 | SW 6 | W 6 | SW 7 | W 6 | NW 5 | NW 5 | — | SW 4 | — | WSW 4 | SW 4 | SW 5 | WSW 5 | NW 3 | WNW 3 | — |
| kJ | — | — | 85 | 109 | 92 | 144 | 103 | 157 | 56 | 12 | — | 3 | — | 32 | 11 | 41 | 56 | 2 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 107 | 107 | 309 | 305 | 309 | 431 | 464 | 129 | 319 | 305 | 310 | 297 | 297 | 297 | 305 | 307 | 130 | 114 | 286 | 285 |
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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