Fishermans (Rhiw) Surf Break

Lat Long: 52.82° N 4.61° W

Fishermans (Rhiw) Surf Forecast and Surf Report

Issued: 12 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fishermans (Rhiw) sea temperature is
17.4°C
1.7° 

Fishermans (Rhiw) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Fishermans (Rhiw) surf forecast from 4 Sep 2026:

  • Most powerful swell: Monday 7 Sep, 7AM (local time) - 3.5ft (1.1m), 15s period, WSW swell with 485 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 15s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-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 Friday (Sep 11) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Mon 7th Sep)3.5ft (1.1m) 15s

Table - best surf conditions forecast for Fishermans (Rhiw) over the next 16 days.


The Lowdown

Right, let me have a look at what’s cookin’ for Fishermans at Rhiw. First thing you need to know – don’t get your hopes up, because the next 16 days are lookin’ pretty grim. There’s a big ol’ gap of nothing to get excited about right from the start.

The first real chance of anything remotely rideable won’t show up until the morning of Sunday, the 13th of September. And even then, it’s barely a whisper. We’ve got a weak 4 ft swell from the SW, but it’s coming in at a short period of just 5 seconds, so it’ll be gutless and bumpy with an onshore wind. The energy is a pathetic 84 (moderate wave energy), and the report calls it “surfable waves but very ordinary conditions”. That’s a polite way of sayin’ it’s not worth paddlin’ out for unless you’re desperate. That afternoon, the wind swings light cross-off, the swell drops to 3 ft, and it gets clean, but the energy is only 44. It’s small, clean, and flat-looking—maybe a longboard, but you’ll be waitin’ for scraps.

Before that, every single day is a write-off. Friday the 4th through to Saturday the 12th are all plagued by strong cross-onshore winds from the W and SW, with lumpy, messy conditions. The swell is all short-period, wind-driven junk, ranging from 1 ft to 7 ft, but none of it is clean. The 7 ft on Tuesday the 8th might sound big, but with strong cross-onshore winds and a weak 6-second period, it’ll be a washing machine. That’s more of a kite-surfing day than a paddle-surfing one.

Now, the 14th of September – Monday – has a spike: 8 ft from the WSW with a 7-8 second period and combined energy of 611 (strong wave energy). But the wind is onshore, so it’s gonna be blown-out and messy. That’s expert-level size, but with onshore winds, it’s just a big, sloppy closeout. Not recommended.

After that, the second week is a total dud. From the 15th to the 19th, we’re lookin’ at tiny 0.7 ft to 2 ft swells with low energy and mostly onshore or cross-shore winds. A few mornings are clean (the 15th and 17th), but there’s no swell to ride.

So, the one true standout – if you can call it that – is Sunday afternoon, 13th of September. It’s clean, the wind is light and cross-off from the NNW, and the swell is a tiny 3 ft from the SW. It’s the only window where the conditions line up for a half-decent session on a log or a foamie. The water temperature is about average for the time of year, so no surprises there. Crowds? At Fishermans (Rhiw), they're possible, but with waves this small, the lineup won’t be busy.

In short, it’s a long, flat, and windy fortnight. The 13th is your slim chance. Otherwise, keep the board in the car.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Thu night. Warm (max 21°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the W on Fri morning, light winds from the WSW by Sat morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Very mild (max 17°C on Sun night, min 12°C on Mon night). Mainly strong winds.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
8
1.5
WSW
6
1.5
W
5
0.7
SW
6
0.6
WSW
6
0.6
SW
4
0.6
SW
5
1.1
SW
6
1.3
SW
6
1.1
WSW
14
1.3
WSW
5
1.7
WSW
6
2
W
6
1.7
WSW
6
1.7
W
6
1.3
W
5
1
WSW
5
2.2
SW
7
1.5
WSW
7
1.2
WSW
8
1.2
W
4
Wave Graph
Metric surfscale
Energy kJ
331
148
120
37
23
14
19
69
116
452
83
235
318
223
197
97
48
423
234
158
54
Wind (km/h)
40
W
35
WSW
35
W
15
WSW
20
SW
25
S
30
SSE
25
S
30
SSW
20
W
25
SW
30
WSW
40
W
25
W
35
W
35
W
30
SW
45
SSW
25
W
30
SW
35
NW
Wind State
cross-on
cross-on
cross
cross-on
on
cross-on
cross-on
on
on
cross
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
on
cross-on
cross-on
cross-off
High Tide
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
7:36AM3.52m
7:53PM4.02m
8:20AM3.78m
8:36PM4.30m
Low Tide
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
2:31PM0.47m
3:02AM0.05m
3:14PM0.23m
3:43AM-0.12m
cloud
part cloud
clear
clear
part cloud
light rain
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
clear
part cloud
clear
part cloud
cloud
mod rain
part cloud
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:33
6:35
6:37
6:39
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:00
7:59
7:55
7:53
7:51
7:49
7:46
 mm
2
2
6
2
Temp °C
15
17
16
14
14
15
19
21
17
15
16
16
14
16
14
14
15
16
17
18
16
Feels °C
8
10
9
12
11
11
13
16
13
11
10
8
7
10
6
8
10
11
14
14
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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