Surf Forecasts:
Fishermans (Rhiw) surf forecast from 26 Aug 2026:
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 6ft (1.8m), 8s period, WSW swell with 402 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 1.8m 8s and forecast to arrive on Monday (Aug 31) at 1AM. 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 Friday (Aug 28) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Mon 31st Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Right, let’s have a look at the forecast for Fishermans (Rhiw). Gotta be straight with you, it’s looking pretty grim for a while. That first week-and-a-half is a write-off for any proper surfing. We’ve got a couple of tiny pulses, but they’re getting chopped up by onshores and cross-shore breezes. There’s a bit of energy showing around the 29th, but the wind is all over it, making it lumpy and messy. Not worth getting wet for, honestly. The water’s running about 64°, which is much warmer than normal for this time of year, so at least you won’t be freezing while you’re sitting there watching it dribble.
We’re looking at a solid stretch of nothing until we get to the 10th of September. That’s the one that finally has my attention. It’s a long way off, so don’t book the time off just yet, but the charts are showing some real promise. A good SW swell (6ft) with a clean, offshore wind. The energy is strong, hitting 453 on the Thursday morning. This is a proper groundswell for the reef, and it’s looking like the standout of the whole window.
The swell is due from the SW, which is the optimum direction for this spot. The morning of the 10th looks like the pick: clean conditions, gentle offshore breeze, and a solid 6ft of swell. It’s not huge, but it’ll have some push to it, with a period of 8 seconds. It won’t be a world-beater, but after all that nothing, it’s going to feel like a gift. The afternoon looks even bigger, pushing 8ft, but the wind switches a bit cross-off, still keeping the lines clean. If you can only get one session in, make it the Thursday morning.
Before that, there’s nothing worth mentioning. A lot of blown-out, cross-onshore junk. If you see me just staring at the ocean that first week, don’t worry, I’m just waiting for the 10th.
Rusty.
Short Range ForecastHeavy rain (total 53mm), heaviest during Thu afternoon. Warm (max 22°C on Wed afternoon, min 16°C on Thu afternoon). Winds increasing (light winds from the SE on Wed morning, fresh winds from the SW by Fri night). | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Sat morning. Very mild (max 17°C on Sat morning, min 14°C on Sun night). Winds increasing (moderate winds from the SW on Sat night, strong winds from the SW by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | SSW 8 | SSW 8 | SW 7 | SW 12 | W 12 | SW 5 | SW 6 | SW 7 | SW 5 | SW 6 | SW 7 | SW 9 | SW 9 | SW 6 | WSW 8 | W 6 | WSW 9 | SW 6 | WSW 7 | SW 7 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 6 | 2 | 6 | 3 | 55 | 7 | 28 | 63 | 60 | 96 | 197 | 118 | 228 | 402 | 193 | 207 | 256 | 154 | 69 | 34 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | cross-off | cross | on | cross-off | cross-on | on | cross-on | on | cross-on | on | on | cross | cross | on | on | cross | cross-on | cross |
High Tide | 8:28PM3.66m | 8:46AM3.48m | 8:59PM3.92m | 9:16AM3.67m | 9:29PM4.12m | 9:47AM3.83m | 10:01PM4.26m | 10:18AM3.93m | 10:34PM4.30m | 10:52AM3.97m | 11:09PM4.25m | 11:28AM3.91m | 11:47PM4.09m | ||||||||
Low Tide | 2:53PM0.72m | 3:20AM0.50m | 3:26PM0.50m | 3:53AM0.30m | 3:59PM0.35m | 4:26AM0.17m | 4:32PM0.27m | 4:59AM0.12m | 5:04PM0.26m | 5:32AM0.17m | 5:38PM0.34m | 6:05AM0.31m | 6:13PM0.48m | ||||||||
 | |  |  |  |  |  | |  |  | | |  | |  | | |  | | |  | |
 | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 8:22 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — |
mm | — | — | — | 5 | 26 | 19 | — | — | 3 | 10 | 6 | — | 3 | 7 | 2 | — | — | 7 | — | — | — |
Temp °C | 20 | 22 | 22 | 18 | 16 | 16 | 17 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 14 | 16 | 16 | 15 | 17 | 16 |
Feels °C | 19 | 21 | 20 | 18 | 15 | 15 | 16 | 16 | 14 | 12 | 13 | 13 | 13 | 12 | 12 | 8 | 10 | 10 | 9 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SW 7 | SW 7 | SW 6 | NNW 5 | SW 6 | NW 5 | — | SW 6 | SW 7 | SW 9 | SW 9 | — | — | — | NW 5 | — | WSW 7 | SW 7 | SW 6 |
| kJ | 6 | 6 | 2 | 2 | 1 | 2 | 7 | 18 | — | 60 | 96 | 197 | 118 | — | — | — | 20 | — | 154 | 69 | 34 |
Swell 2 Height (m) Direction Period (s) | W 13 | — | SW 4 | SW 12 | — | W 12 | — | SW 7 | — | — | — | — | NNW 4 | — | — | — | — | — | — | NW 4 | W 16 |
| kJ | 3 | — | 1 | 6 | — | 3 | — | 28 | — | — | — | — | 1 | — | — | — | — | — | — | 12 | 5 |
Swell 3 Height (m) Direction Period (s) | — | W 12 | — | W 12 | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | — | E 2 | ESE 3 | — | SW 5 | WNW 5 | WNW 4 | SW 5 | SSE 3 | — | NW 3 | SSW 4 | SW 6 | WSW 8 | W 6 | WSW 9 | SW 6 | NW 5 | W 7 | NW 4 |
| kJ | 2 | — | 1 | 1 | — | 55 | 77 | 14 | 63 | 7 | — | 6 | 9 | 228 | 402 | 193 | 207 | 256 | 17 | 63 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 257 | 344 | 305 | 276 | 195 | 195 | 186 | 7 | 240 | 330 | 96 | 96 | 312 | 53 | 7 | 123 | 276 | 255 | 625 | 464 | 322 |
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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