Surf Forecasts:
Fishermans (Rhiw) surf forecast from 18 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 1AM (local time) - 0.5ft (0.1m), 16s period, W swell with 5 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 0.1m 16s and forecast to arrive on Wednesday (Jul 22) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Jul 22) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Wed 22nd Jul) | 0.5ft (0.1m) 16s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Looking at the run ahead for Fishermans (Rhiw), I gotta be straight with you—it’s a tough stretch. We’ve got a long, dry gap at the start with basically nothing to ride for days.
The first chance for a paddle doesn’t come until Sunday afternoon, July 26th, and even then it’s small. We’re looking at a weak 3ft swell from the SW, with a short period and weak energy (17). The wind is cross-off from the NNW, so it’ll be clean, but the waves are just too small and gutless to get excited about. The water is running much warmer than normal for this time of year at 64°, which is a weird one for the area.
Things start to look a little more promising, but still very ordinary, on Tuesday afternoon, July 28th. The swell bumps up to 4ft from the SW, period short at 5 seconds, and the energy is still moderate (74). It’s surfable, with a light NW wind keeping it clean, but don’t expect any kind of quality. The best call of the whole window, and I mean the only real standout, is the morning of Friday, July 31st. We get a glassy 5ft swell from the west, with a period of 6 seconds and moderate energy (141). The wind is glassy—dead calm from the SSE. That’s going to be the cleanest, most user-friendly wave of the forecast. It’s still not a world-beater, but for beginners or anyone wanting a morning cruise without the wind, that’s your window.
After that, it’s downhill again. The first week of August brings building onshore winds and messy conditions, with the swell dropping back to nothing. There’s a solid 10-day stretch of almost nothing to ride, so don’t hold your breath.
Overall, keep your expectations low. With the combo of small swell and mostly cross-off or onshore wind, this setup looks more interesting for kite surfing than paddle surfing on most days. The only real, honest-to-goodness session is that glassy morning on July 31st.
Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the NNW on Sat afternoon, light winds from the N by Mon night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Tue afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the WNW by Thu night). | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | S 5 | W 11 | NNW 5 | NNW 3 | N 4 | W 9 | NNW 4 | N 4 | NNW 5 | NNW 4 | W 16 | NNW 4 | NNW 5 | NW 6 | NNW 5 | NNW 4 | NNW 5 | W 13 | — | — |
Wave Graph  | ||||||||||||||||||||
 kJ | 1 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | on | cross |
High Tide | 00:09AM4.20m | 12:36PM3.54m | 00:55AM3.91m | 1:23PM3.32m | 1:44AM3.57m | 2:14PM3.10m | 2:38AM3.23m | 3:13PM2.92m | 3:43AM2.96m | 4:24PM2.82m | 4:58AM2.82m | 5:36PM2.84m | ||||||||
Low Tide | 6:41PM0.39m | 7:19AM0.27m | 7:23PM0.61m | 8:02AM0.55m | 8:07PM0.85m | 8:45AM0.85m | 8:54PM1.09m | 9:33AM1.12m | 9:52PM1.30m | 10:33AM1.32m | 11:08PM1.41m | 11:50AM1.39m | 00:34AM1.37m | |||||||
 |  | | | | | |  | | | |  | | | | | | |  |  | |
 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | 9:32 | — | — | 9:30 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:25 | — | — | 9:24 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 17 | 17 | 14 | 15 | 16 | 17 | 18 | 16 | 13 | 16 | 15 | 13 | 16 | 17 | 14 | 16 | 17 |
Feels °C | 11 | 13 | 12 | 14 | 13 | 11 | 10 | 12 | 14 | 14 | 11 | 9 | 11 | 11 | 11 | 14 | 15 | 12 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | S 5 | N 5 | — | — | NNW 4 | W 9 | — | — | NNW 5 | — | W 16 | — | — | NW 6 | — | — | NNW 5 | N 5 | — | — |
| kJ | 1 | 11 | — | — | 5 | 2 | — | — | 11 | — | 5 | — | — | 1 | — | — | 2 | 2 | — | — |
Swell 2 Height (m) Direction Period (s) | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | — | — |
| kJ | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NNW 5 | NNW 3 | N 4 | NNW 5 | NNW 4 | N 4 | — | NNW 4 | N 4 | NNW 4 | NNW 5 | N 4 | NNW 5 | NNW 4 | — | — | — | — |
| kJ | 39 | — | 4 | 7 | 6 | 7 | 16 | 12 | — | 25 | 14 | 42 | 72 | 13 | 11 | 8 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 321 | 190 | 321 | 321 | 305 | 321 | 962 | 305 | 273 | 308 | 80 | 320 | 538 | 80 | 216 | 309 | 319 | 320 | 1054 | 297 |
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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