Surf Forecasts:
Fishermans (Rhiw) surf forecast from 9 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 4AM (local time) - 1.5ft (0.4m), 9s period, SW swell with 19 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 9s and forecast to arrive on Thursday (Aug 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 15) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 13th Aug) | 1.5ft (0.4m) 9s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what we've got on the cards for the next couple of weeks.
Looks like we're in for a long, quiet stretch, folks. I'm not gonna sugarcoat it – the surf is pretty much non-existent for the foreseeable future. We're looking at a solid gap with nothing worth getting excited about. The whole 16-day window is a bit of a write-off for paddle surfing.
Let's start with the one spot that has the best chance, which is Fishermans (Rhiw). It's a reef setup, consistent enough, and a good beginner spot. But honestly, the waves just aren't showing up. The combined swell energy is very weak, barely cracking double digits. For example, on Sunday morning the 9th of August, we're looking at a tiny 0.3 ft swell from the SW with a combined energy of just 12, and it's blown out by a 9 mph onshore wind. The water's a touch warmer than normal for this time of year at 63°F, but you won't be in the water long enough to notice.
The week drags on with the same story. A few mornings might have a glassy surface, like the morning of Thursday the 13th of August with zero wind, but the swell is still a pathetic 1 ft. You'd be floating more than surfing. The conditions stay clean at times, especially with those morning offshores from the N and NNE, but the wave height just isn't there to do anything with. Even afternoons that are clean, like Saturday the 15th of August, are getting hit with a 19 mph cross-offshore wind, which would just make it a bumpy mess on top of the small waves.
Looking further out, into the second week, the situation doesn't improve. The guidance shows consistent but tiny swells from the W and SW, all under 0.7 ft. The combined energy stays in the single digits or low teens. There are some moments with clean winds, like the glassy Sunday afternoon on the 16th of August, but again, with a 1 ft swell, it's a non-starter. With the wind getting strong and the waves being that small, this setup honestly looks more interesting for a kite than a surfboard.
Bottom line: there's just nothing to recommend. It’s one of those blank runs. Don't rush to the beach with your shortboard. If you're desperate for a splash, the cleanest windows with the most energy are the 13th and 16th of August, but keep your expectations on the floor.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue night, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Wed afternoon, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | SW 6 | SW 12 | SW 4 | SW 5 | SW 5 | SW 6 | SE 3 | SW 6 | W 11 | WSW 10 | WSW 10 | WSW 9 | SW 8 | SW 8 | SW 6 | SW 5 | SW 5 | WSW 6 | SW 8 | SW 8 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 6 | 8 | 7 | 5 | 6 | 2 | 2 | 3 | 10 | 9 | 16 | 17 | 15 | 6 | 8 | 3 | 4 | 11 | 14 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-off | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 6:06PM3.28m | 6:42AM3.33m | 7:10PM3.62m | 7:42AM3.57m | 8:04PM3.98m | 8:33AM3.80m | 8:52PM4.29m | 9:19AM3.95m | 9:37PM4.49m | 10:02AM4.03m | 10:19PM4.55m | 10:42AM4.01m | 11:00PM4.46m | ||||||||
Low Tide | 12:46PM1.04m | 1:25AM0.83m | 1:53PM0.78m | 2:27AM0.46m | 2:46PM0.49m | 3:18AM0.13m | 3:32PM0.26m | 4:04AM-0.10m | 4:15PM0.11m | 4:46AM-0.19m | 4:54PM0.07m | 5:26AM-0.15m | 5:32PM0.14m | ||||||||
 | |  | |  | | | | | | | | | |  |  | | | | | | |
 | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 19 | 15 | 17 | 17 | 21 | 21 | 22 | 24 | 25 | 25 | 20 | 22 | 21 | 20 | 20 | 19 | 16 | 17 | 16 |
Feels °C | 14 | 16 | 18 | 12 | 13 | 13 | 20 | 19 | 21 | 22 | 21 | 24 | 20 | 21 | 20 | 19 | 17 | 16 | 12 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 4 | SW 5 | SW 5 | N 3 | SW 6 | SW 6 | — | WSW 10 | WSW 10 | WSW 9 | SW 8 | SW 8 | SW 6 | SW 5 | SW 5 | WSW 6 | SW 8 | SW 8 | WSW 7 |
| kJ | 7 | 2 | 8 | 7 | 5 | 1 | 2 | 2 | — | 10 | 9 | 16 | 17 | 15 | 6 | 8 | 3 | 4 | 11 | 14 | 5 |
Swell 2 Height (m) Direction Period (s) | W 12 | SW 12 | SW 6 | WNW 4 | — | SW 6 | — | — | SW 6 | SW 6 | SW 6 | SW 6 | — | — | SW 8 | SW 8 | SW 7 | — | — | — | SW 7 |
| kJ | 3 | 6 | 2 | 1 | — | 6 | — | — | 1 | 1 | 1 | 1 | — | — | 2 | 3 | 2 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 11 | W 6 | — | — | — | — | SW 9 | — | W 8 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | 3 | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | WSW 3 | NNW 3 | N 3 | NW 3 | ENE 2 | SE 3 | — | — | — | — | — | — | — | — | — | — | — | — | NW 3 | NNW 4 |
| kJ | 2 | 1 | 1 | 1 | 4 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 310 | 297 | 297 | 297 | 305 | 256 | 314 | 331 | 114 | 114 | 132 | 129 | 142 | 298 | 142 | 114 | 142 | 303 | 129 | 402 | 146 |
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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