Surf Forecasts:
Fishermans (Rhiw) surf forecast from 2 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 7AM (local time) - 8ft (2.5m), 7s period, W swell with 568 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 2.5m 7s and forecast to arrive on Wednesday (Sep 09) at 7AM. 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 6s period and expected on Wednesday (Sep 09) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Wed 9th Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's look at what's on offer down at Fishermans (Rhiw) over the next couple of weeks.
Honestly, the first week and a bit is a write-off. We're looking at poor surf conditions for days on end. The swell is small, short-period, and the wind is mostly cross-on or onshore, mushing everything up. The first time we see a glimmer of hope is on Friday the 11th of September. That's when a real pulse of energy arrives. The combined swell energy jumps to a moderate 502 in the morning, climbing to a strong 372 in the afternoon. We're talking about 8 ft of swell at first, coming from the WSW with a short 7-second period, so it won't be the cleanest, but the wind finally swings offshore, and that makes all the difference.
The standout here is undoubtedly Sunday the 13th of September. The afternoon session is the best bet of the whole outlook. You've got a solid 7 ft swell from the WSW, and the combined energy is a strong 329. But the real beauty is the wind – it's a light, offshore breeze from the NW, going clean across the reef. That's going to make Fishermans (Rhiw) look absolutely perfect, with clean faces and good shape. For this break, with its optimum direction being SW, this is a real aligned pulse. It's a quiet little spot, so crowds are only a sometimes thing, which is a bonus.
After that, there are a few more blown-out days, but we do have one more interesting one further out. On Wednesday the 16th of September, the morning shows a massive 8 ft swell from the SSW with a combined energy of 758 – that's very strong. But the wind is cross-off from the NW, so while it'll be clean, that size and short period (7 seconds) will be a heavy, draining wave for experts only. The afternoon picks up a bit more period (9 seconds) but gets messy with a strong cross-shore.
So, to sum it up: with water temps about a degree and a half warmer than average for the time of year, the first proper surf doesn't really get going until the second week. The true standout is Sunday the 13th of September, afternoon session at Fishermans – get that in the diary as a promising one, but remember it's a long-range call.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Thu night. Very mild (max 19°C on Wed night, min 14°C on Fri morning). Winds decreasing (strong winds from the SW on Thu afternoon, light winds from the WNW by Fri night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 21°C on Sun afternoon, min 12°C on Mon afternoon). Winds increasing (light winds from the W on Sat morning, near gales from the WSW by Mon night). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 5 | SW 6 | SW 7 | SW 7 | SW 6 | SW 6 | WSW 5 | WSW 5 | W 5 | WSW 6 | SW 6 | SW 6 | SE 3 | SSW 6 | SW 5 | WSW 5 | SW 6 | WSW 6 | WSW 6 | WSW 6 | W 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 62 | 156 | 314 | 151 | 169 | 144 | 149 | 128 | 66 | 26 | 17 | 9 | 8 | 43 | 83 | 105 | 237 | 263 | 329 | 271 | 427 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross | cross-on | cross-on | cross | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 12:08PM3.76m | 00:30AM3.83m | 12:53PM3.53m | 1:20AM3.49m | 1:48PM3.26m | 2:25AM3.15m | 3:02PM3.03m | 3:52AM2.93m | 4:36PM3.02m | 5:28AM2.98m | 6:01PM3.28m | 6:41AM3.22m | 7:03PM3.65m | ||||||||
Low Tide | 6:51PM0.67m | 7:22AM0.79m | 7:39PM0.91m | 8:16AM1.08m | 8:50PM1.14m | 9:38AM1.30m | 10:31PM1.24m | 11:19AM1.31m | 00:09AM1.06m | 12:42PM1.09m | 1:21AM0.71m | 1:43PM0.77m | 2:16AM0.35m | ||||||||
 |  |  |  | |  | | |  | | | | | | | |  | | | | | |
 | 6:28 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — |
 | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:55 | — | — | 7:53 | — | — | 7:51 | — |
mm | 5 | — | — | — | — | 13 | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — |
Temp °C | 17 | 17 | 19 | 17 | 17 | 17 | 15 | 17 | 16 | 14 | 14 | 16 | 18 | 21 | 18 | 16 | 16 | 15 | 14 | 15 | 14 |
Feels °C | 13 | 13 | 14 | 14 | 12 | 12 | 7 | 10 | 10 | 13 | 12 | 10 | 12 | 17 | 14 | 8 | 8 | 6 | 5 | 7 | 5 |
Swell 1 Height (m) Direction Period (s) | W 16 | — | — | SW 15 | — | SW 6 | — | NW 5 | SW 8 | WSW 6 | NW 4 | SW 6 | SW 4 | SW 13 | — | — | — | — | — | — | — |
| kJ | 5 | — | — | 8 | — | 144 | — | 12 | 15 | 26 | 3 | 9 | 5 | 6 | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 16 | — | — | — | — | SW 14 | — | — | SW 14 | NW 4 | SW 13 | SW 13 | SW 13 | W 13 | — | — | — | — | — | — | — |
| kJ | 5 | — | — | — | — | 8 | — | — | 8 | 10 | 7 | 7 | 7 | 3 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 14 | SW 8 | — | W 13 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 7 | 2 | — | 3 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 6 | SW 7 | SW 7 | SW 6 | — | WSW 5 | WSW 5 | W 5 | — | SW 6 | SSE 2 | SE 3 | SSW 6 | SW 5 | WSW 5 | SW 6 | WSW 6 | WSW 6 | WSW 6 | W 7 |
| kJ | 62 | 156 | 314 | 151 | 169 | — | 149 | 128 | 66 | — | 17 | 1 | 8 | 43 | 83 | 105 | 237 | 263 | 329 | 271 | 427 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 295 | 297 | 257 | 255 | 330 | 137 | 497 | 257 | 129 | 7 | 248 | 129 | 376 | 139 | 158 | 335 | 123 | 575 | 790 | 743 | 257 |
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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