
Surf Forecasts:
Fishermans (Rhiw) surf forecast from 29 Jul 2026:
- Most powerful swell: Wednesday 29 Jul, 10PM (local time) - 3.5ft (1.1m), 5s period, SW swell with 60 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 5s and forecast to arrive on Wednesday (Jul 29) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Aug 02) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Wed 29th Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Right, pull up a rock and listen. It’s Rusty here, and I’ve got to be straight with you – the next two weeks are a bit of a lean stretch for Fishermans (Rhiw). We've got a long, dry spell ahead with barely a ripple, but there are a few whispers of something at the very end worth keeping an eye on.
Let’s start with the grim bit. From Wednesday the 29th of July right through to Thursday the 6th of August, you’re looking at a blank run. Even if you’re the most optimistic surf-starved soul, there’s nothing doing. The swell is tiny – 1ft to maybe 2ft – with a rotten, short period (4 to 5 seconds) and poor energy readings (5 to 18). Dead low energy. Most of the time we’ve got onshore winds out of the SSW, so it’s messy. We do get a window of clean, cross-off weather on the 1st and 2nd of August, but the swell’s so weak and small it's not even worth getting the board wet. The water temp is about average for the time of year at 17°, nothing special.
Then we roll into Friday the 7th of August, and things finally start to look a little more interesting. The combined swell energy jumps right up to 600 (moderate to strong wave energy), and we’re looking at a solid 8ft swell from the SW, with an 8 second period. That’s a proper size – only for the experts, mind you. If you’re a beginner, give this one a miss, as that’s pushing 8ft. The wind on Friday morning is cross-shore from the WNW at 9 mph, which is clean enough, but it’s a bit bumpy with a cross-chop. The tide and conditions look questionable, so it’s more of a “look at it from the cliff” kind of day than a paddling one. Still, that’s the standout for the whole 16 days in terms of pure size.
Following that, Saturday the 8th and Sunday the 9th of August offer some small relief. Swell drops to 4ft to 4ft (WSW/SW, 8 second period) with combined energy around 133 to 162. The winds are light and cross-off on Saturday afternoon and Sunday morning, giving you clean waves. It’s not epic, but it’s “surfable but ordinary” – you could get a few foam climbs if you’re keen.
Through Monday the 10th to Wednesday the 12th of August, we’re back to small, clean conditions (2ft to 4ft, 7 to 8 seconds). The winds remain cross-off and offshore, but the energy is dropping back down to 50 to 131. It’s not going to blow you away, but for a longboard or a twinny, it’ll be okay. A few ordinary waves to be had.
In short: there’s a massive flat spell right now until early August, then a brief but significant swell on the 7th for the experts, followed by a week of small but clean dribble. The standout is that Friday the 7th – the only true size in the whole outlook.
Stay patient, and keep watching the charts.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Very mild (max 18°C on Wed morning, min 14°C on Wed night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Thu night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Very mild (max 17°C on Sun afternoon, min 13°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 4 | SW 4 | SW 5 | WSW 5 | SW 5 | WSW 4 | SW 5 | SW 5 | WSW 4 | WSW 5 | NW 4 | SW 9 | WSW 4 | SW 8 | WSW 8 | WSW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 |
Wave Graph | |||||||||||||||||||||
18 | 17 | 36 | 11 | 6 | 7 | 5 | 5 | 18 | 10 | 2 | 3 | 3 | 3 | 7 | 7 | 11 | 18 | 10 | 9 | 8 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-off | cross-off | cross | glassy | cross | on | cross-off | cross-off | on | on | glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:24PM3.79m | 9:40AM3.52m | 9:56PM3.95m | 10:12AM3.60m | 10:28PM4.05m | 10:45AM3.65m | 11:01PM4.09m | 11:19AM3.67m | 11:35PM4.06m | 11:55AM3.63m | 00:13AM3.95m | 12:35PM3.54m | 00:55AM3.78m | ||||||||
Low Tide | 3:53PM0.60m | 4:21AM0.46m | 4:26PM0.49m | 4:56AM0.36m | 5:00PM0.43m | 5:30AM0.33m | 5:33PM0.45m | 6:04AM0.36m | 6:06PM0.52m | 6:38AM0.44m | 6:40PM0.64m | 7:14AM0.58m | 7:17PM0.80m | ||||||||
5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | |
— | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:09 | — | — | 9:08 | — | — | 9:07 | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 7 | 5 | 2 | 7 |
Temp °C | 18 | 18 | 17 | 14 | 15 | 15 | 14 | 16 | 17 | 13 | 15 | 15 | 16 | 17 | 16 | 15 | 15 | 16 | 14 | 14 | 13 |
Feels °C | 15 | 14 | 16 | 11 | 13 | 14 | 12 | 12 | 13 | 10 | 14 | 13 | 14 | 13 | 12 | 12 | 13 | 14 | 10 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 5 | WSW 5 | SW 5 | WSW 4 | SW 5 | NW 4 | WSW 4 | WSW 5 | NW 4 | WSW 4 | WSW 4 | SW 8 | WSW 8 | NNW 4 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 |
— | — | 36 | 11 | 6 | 7 | 5 | 2 | 18 | 10 | 2 | 2 | 2 | 3 | 7 | 2 | 11 | 18 | 10 | 9 | 8 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NW 4 | — | — | — | W 12 | W 10 | WSW 5 | SW 9 | SW 8 | SW 4 | SW 8 | WSW 9 | NNW 4 | — | — | — | — |
— | — | — | — | 2 | — | — | — | 3 | 2 | 2 | 3 | 3 | 1 | 3 | 7 | 2 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | — | W 10 | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 2 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 4 | — | NW 3 | — | — | NW 4 | SW 5 | — | NW 4 | — | — | — | NNW 4 | NNE 4 | ESE 3 | ENE 2 | — | — | — | — |
18 | 17 | — | 4 | — | — | 5 | 5 | — | 6 | — | — | — | 16 | 7 | 1 | 1 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 292 | 292 | 292 | 498 | 535 | 292 | 307 | 535 | 308 | 297 | 319 | 256 | 305 | 308 | 303 | 134 | 256 | 134 | 303 | 276 | 321 |
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.










