Surf Forecasts:
Fishermans (Rhiw) surf forecast from 28 Jul 2026:
- Most powerful swell: Tuesday 4 Aug, 1AM (local time) - 5ft (1.6m), 7s period, SW swell with 234 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 7s and forecast to arrive on Tuesday (Aug 04) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 30) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 4th Aug) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright, Rusty again. I’m looking at the same stretch for Fishermans (Rhiw), and it’s a long, flat spell. No good surf to be had in these 16 days, so don’t bother getting your hopes up.
Right off the bat, Tuesday the 28th of July, we’ve got a weak 4ft SW swell, but it’s getting hammered by a 30 km/h onshore wind from the SSW. Water temp is about 62°F, a touch warmer than normal, but the wave energy is weak at 65. The waves are just poor. This carries on through the end of the month and into early August. We’re looking at tiny 1-2ft bumps, cross-shore chop, and even some glassy moments on absolutely tiny 1ft swell that’s not worth a second thought.
There’s a small pulse on Tuesday the 4th of August. The combined energy jumps to 182 (moderate), with a 4ft SW swell and an 8-second period. But the wind is a moderate 25 km/h cross-onshore from the WSW, making it choppy, and the surf quality is still poor. Not a day to get excited about.
The rest of the second week is more of the same. Swell stays under 3ft, and the wind is either onshore, cross-shore, or just plain messy. A few clean offshore breezes pop up on the 7th, 10th, and 11th, but the swell is barely a ripple—0.3ft to 1ft—with combined energy in the single digits. Even a long-period 12-second swell on the 7th has no power behind it.
So, there’s nothing going on. Fishermans (Rhiw) is usually fairly consistent, so a total blank run like this is a bit of a surprise, but it can happen. Keep an eye on the forecast, but for now, don’t bother.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 14°C on Wed night). Winds decreasing (fresh winds from the SW on Tue afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun night, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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 5 | SW 5 | WSW 5 | SW 4 | SW 4 | SW 5 | W 4 | NW 4 | SW 5 | SW 5 | SW 3 | WSW 5 | WSW 5 | SW 5 | WSW 4 | SW 8 | SW 8 | WSW 9 | SW 8 | WSW 8 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 65 | 42 | 15 | 16 | 8 | 22 | 20 | 12 | 6 | 5 | 2 | 36 | 9 | 3 | 3 | 3 | 3 | 8 | 18 | 26 | 234 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross | cross | on | cross-on | cross-on | on | cross-off | cross | glassy | glassy | cross-off | off | cross | cross | on | on |
High Tide | 8:49PM3.59m | 9:07AM3.41m | 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 | ||||||||
Low Tide | 3:19PM0.77m | 3:46AM0.61m | 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 | ||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | |
 | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — |
 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:09 | — | — | 9:08 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 17 | 18 | 18 | 17 | 14 | 15 | 15 | 14 | 15 | 17 | 13 | 15 | 15 | 18 | 21 | 22 | 19 | 19 | 18 |
Feels °C | 14 | 16 | 15 | 15 | 15 | 16 | 9 | 12 | 12 | 13 | 10 | 13 | 10 | 14 | 13 | 16 | 18 | 20 | 16 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 5 | SW 5 | — | SW 5 | — | WSW 5 | SW 5 | NW 4 | NW 4 | W 11 | WSW 5 | NW 4 | WSW 4 | — | SW 8 | WSW 9 | SW 8 | WSW 8 | — |
| kJ | — | — | 15 | 5 | — | 22 | — | 8 | 6 | 5 | 2 | 2 | 9 | 2 | 1 | — | 3 | 8 | 18 | 26 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 4 | NW 4 | SW 5 | — | — | W 9 | SW 5 | SW 8 | SW 8 | — | N 3 | — | — | — |
| kJ | — | — | — | — | — | — | — | 12 | 1 | 5 | — | — | 2 | 3 | 3 | 3 | — | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | — | SW 4 | SW 4 | — | W 4 | — | NNW 4 | — | SW 3 | WSW 5 | NW 4 | — | — | — | — | — | SE 3 | S 4 | SW 7 |
| kJ | 65 | 42 | — | 16 | 8 | — | 20 | — | 1 | — | 2 | 36 | 5 | — | — | — | — | — | 2 | 9 | 234 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 257 | 282 | 256 | 296 | 292 | 292 | 631 | 535 | 306 | 306 | 536 | 536 | 307 | 319 | 190 | 292 | 251 | 114 | 136 | 74 | 54 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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