Fishermans (Rhiw) Surf Break

Lat Long: 52.82° N 4.61° W

Fishermans (Rhiw) Surf Forecast and Surf Report

Issued: 6 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Fishermans (Rhiw) sea temperature is
18.1° C
2.2° 

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 14 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 5ft (1.5m), 6s period, WSW swell with 148 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 1.5m 6s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Aug 20) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Wed 19th Aug)5ft (1.5m) 6s

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


The Lowdown

Alright, I’m gonna level with you. Right now, through the whole 16-day run, it’s looking pretty grim for a proper paddle. There’s not one session that I’d actually get excited about. The swell is tiny across the board, and the winds are messy for the most part. Let’s walk through it.

The water at Fishermans (Rhiw) is sitting at 65°F—that’s much warmer than normal for this time of year, which is a weird little bonus, but it doesn’t help the waves.

Starting off from Friday 14th August afternoon, we’ve got a weak 1 ft SW swell with a period of only 5 seconds and combined energy of just 7. The wind is cross-off from the north at 12 mph, so it’s clean, but there’s nothing to ride. Saturday 15th and Sunday 16th are even smaller—0.7 ft and then 0.3 ft. Sunday morning does go glassy, but with 0.3 ft and 2 energy, it’s a lake.

Monday 17th and Tuesday 18th stay poor, with the swell creeping up to 2 ft and 2 ft but still short period and weak energy (12 and 42). Winds are mostly cross-off or onshore, nothing to write home about.

Then Wednesday 19th August sees a bit of a bump—4 ft to 5 ft from the W/SW, with combined energy jumping to 148. That’s moderate energy, but the wind is a strong 25 mph onshore or cross-shore, creating messy cross-chop. It’s blown out. Not surfable in any nice way.

From Thursday 20th through to the end of the month, the swell drops back to tiny 0.3 ft to 2 ft, with periods occasionally getting long (14–16 seconds) but no height to work with. The energy stays low, mostly under 100. A few windows have clean conditions—like the glassy morning of Saturday 22nd August with 0.3 ft and 15-second period—but that’s not surf, that’s a mirror.

In the second week, from about Wednesday 25th August onward, there’s a brief uptick on Tuesday 25th afternoon with 2 ft SW swell and 63 energy, cross-off breeze from NNW at 6 mph, so it’s clean but still tiny. The rest of that week is onshore wind and rain, with nothing breaking waist-high.

In short: there’s no standout here. The whole 16-day window is a bust for decent waves. Fishermans (Rhiw) is a reef that needs a proper SW groundswell and some clean offshore wind to shine, but we’re not getting either. The forecast might change, but right now, I’d leave the board at home.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Fri afternoon, min 14°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Tue night. Very mild (max 19°C on Mon night, min 14°C on Tue night). Winds increasing (light winds from the W on Tue morning, strong winds from the NW by Thu morning).

Fri
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
5
0.2
WSW
7
0.2
WSW
7
0.2
WSW
7
0.1
SW
7
0.1
SW
7
0.1
W
7
0.4
SW
3
0.5
SW
5
0.4
SW
5
0.7
SW
4
0.7
SW
6
0.5
SW
6
0.6
WSW
5
1.3
W
5
1.5
WSW
6
0.9
WSW
6
0.7
WSW
6
0.1
SW
14
0.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
5
5
5
5
2
2
1
3
12
7
20
37
15
15
88
148
61
34
8
8
Wind (km/h)
20
N
15
N
25
N
25
NNW
15
N
0
SW
15
SW
10
SW
15
NNW
20
SSW
20
W
20
NW
15
SSW
20
WNW
40
W
40
SW
40
WNW
40
NW
25
NW
20
NNW
Wind State
cross-off
off
cross-off
cross-off
off
glassy
on
on
cross-off
on
cross-on
cross-off
on
cross
cross
on
cross
cross-off
cross-off
cross-off
High Tide
10:19PM4.55m
10:42AM4.01m
11:00PM4.46m
11:22AM3.91m
11:40PM4.24m
12:01PM3.72m
00:20AM3.91m
12:40PM3.48m
1:01AM3.53m
1:22PM3.21m
1:46AM3.14m
2:11PM2.93m
2:45AM2.80m
Low Tide
4:54PM0.07m
5:26AM-0.15m
5:32PM0.14m
6:03AM0.03m
6:09PM0.29m
6:39AM0.30m
6:44PM0.52m
7:13AM0.62m
7:20PM0.79m
7:48AM0.95m
7:59PM1.07m
8:27AM1.25m
8:50PM1.34m
cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
light rain
part cloud
cloud
rain showers
clear
part cloud
part cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:00
6:01
6:03
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:47
8:45
8:43
8:40
8:38
8:37
8:35
 mm
1
5
Temp °C
17
17
14
16
16
15
16
17
15
16
19
16
17
16
15
17
16
14
15
14
Feels °C
14
14
10
12
13
15
14
17
13
13
18
15
15
13
8
10
8
6
9
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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