Surf Forecasts:
Fishermans (Rhiw) surf forecast from 5 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 3.5ft (1.1m), 6s period, W swell with 77 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 1.1m 6s and forecast to arrive on Wednesday (Aug 05) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Aug 06) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 5th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight up – the next 16 days at Fishermans (Rhiw) are a proper struggle. We’ve got a long, frustrating gap ahead with hardly anything worth paddling out for.
The water is sitting at 62.8°, which is a touch warmer than normal for this time of year – nice for a sit on the board but it won’t make up for the lack of waves.
Looking at the immediate run, we’re stuck with tiny, weak swell and poor wind. Wednesday the 5th through to Saturday the 15th is basically a write-off. There are days with some energy, like the afternoon of Thursday the 13th showing 5.2 ft from the SW, but it’s a short-period windswell and the wind is onshore or cross-onshore, making it messy and lumpy. The combined energy on that Thursday afternoon is moderate (134), but it’s just not clean enough to get excited about. The mornings around that time are choppy and poor. For the most part, you’re looking at knee-high slop with combined energy figures often below 100 (weak). The period on most days is short, under 8 seconds, so the waves are weak and crumbly.
There’s a tiny glimmer on Sunday morning the 16th. We get a moderate offshore wind from the north at 16 mph with a clean surface, and a 5.2 ft swell from the SW. The combined energy jumps to 172 (moderate). That’s a 5.2 ft wave – it’s getting into the range that’s too much for beginners but a solid option for anyone with a bit of experience. The period is only 6 seconds though, so it’s a short, lumpy groundswell. It’s the only session that gets a rating of ‘surfable’ in the whole run, but it’s hardly a standout. After that, it drops right back off into tiny, onshore junk for the rest of the period.
If you’re a kitesurfer, the strong cross-onshore winds on a few days might be more interesting, but for a paddle surfer, this is a lean stretch.
Short Range ForecastSome drizzle, heaviest during Wed afternoon. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed morning, light winds from the SW by Thu night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Mon afternoon, min 15°C on Sat morning). 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 | WSW 5 | WNW 5 | WSW 6 | NW 5 | SW 4 | SW 4 | SW 4 | SW 4 | SSW 3 | SW 4 | SW 5 | WSW 7 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 85 | 87 | 72 | 23 | 13 | 19 | 11 | 5 | 9 | 5 | 13 | 24 | 30 | 10 | 6 | 5 | 5 | 1 | 1 | 1 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | on | cross-on | on | on | on | on | on | on | cross-on | cross | glassy | cross-off | cross-off | glassy | cross-on | on | cross-on |
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 | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 15 | 14 | 15 | 17 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 16 | 19 | 18 | 19 | 19 | 18 |
Feels °C | 8 | 11 | 9 | 11 | 12 | 15 | 12 | 13 | 14 | 13 | 14 | 15 | 16 | 18 | 18 | 14 | 17 | 16 | 16 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | — | NW 5 | W 13 | WSW 6 | NW 5 | — | SW 12 | — | SW 4 | W 9 | — | SW 7 | WSW 7 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 |
| kJ | — | 25 | 3 | 23 | 12 | — | 6 | — | 9 | 2 | — | 12 | 30 | 10 | 6 | 5 | 5 | 1 | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 13 | WSW 6 | SW 12 | — | W 12 | SW 12 | SW 11 | — | WSW 7 | W 12 | SW 12 | — | NW 3 | — | — | — | — | W 11 |
| kJ | — | — | — | 3 | 13 | 6 | — | 3 | 5 | 5 | — | 5 | 3 | 6 | — | 2 | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | W 12 | — | — | — | — | — | — |
| kJ | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | WSW 5 | WNW 5 | NW 5 | — | SW 4 | SW 4 | SW 4 | — | SSW 3 | SW 4 | SW 5 | — | — | — | — | — | — | ESE 3 | — | — |
| kJ | 85 | 87 | 72 | 39 | — | 19 | 11 | 5 | — | 5 | 13 | 24 | — | — | — | — | — | — | 1 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 510 | 498 | 497 | 146 | 321 | 305 | 309 | 292 | 292 | 292 | 256 | 107 | 292 | 292 | 292 | 292 | 292 | 292 | 310 | 337 | 132 |
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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