Gwithian Surf Break

Lat Long: 50.22° N 5.40° W

Gwithian Surf Forecast and Surf Report

Issued: 6 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Gwithian sea temperature is
17.7°C
1.0° 

Gwithian surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Gwithian surf forecast from 29 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 4PM (local time) - 11ft (3.5m), 9s period, WSW swell with 1,938 kJ wave energy.

Best Forecast Surf Conditions for Gwithian this week:

The most powerful waves expected at Gwithian in the next 16 days are 3.5m 9s and forecast to arrive on Saturday (Aug 29) 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 0.1m 11s period and expected on Tuesday (Sep 01) at 10PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Sat 29th Aug)11ft (3.5m) 9s

Table - best surf conditions forecast for Gwithian over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s happening on our shores over the next couple of weeks.

We’re looking at a pretty grim run, to be honest. The whole 16-day window is basically a write-off for any decent surf. There’s no standout day, no session to get excited about. The wind is mostly howling onshore, and even when it eases, the swell is just too weak or messy to make it worthwhile. There’s a long gap of poor conditions right from the start, all the way through to the first week of September, with nothing but onshore wind and lumpy, chopped-out waves.

For the first few days, from Saturday the 29th of August right through the following week, it’s a mess. On Saturday the 29th, we’ve got a 8ft SW swell on the morning, but it’s being thrashed by a 22 mph cross-on wind, making it ugly. The combined energy is moderate at 646, but it’s all blown out. The afternoon gets even worse – an 12ft beast with 28 mph onshore wind, energy up at 1938, but it’s just a washing machine. This is proper big, messy stuff – over 8ft, so experts only, and even then it’s not fun.

Sunday the 30th and Monday the 31st are more of the same: onshore wind, lumpy conditions, and swells over 7ft. The water temperature is 64°, which is about normal for this time of year, anomaly of just 2°. Tuesday the 1st of September sees the swell drop to 4ft, but the wind is still cross-shore or cross-on, and the energy is weak at 202. It’s still not clean.

We get a tiny glimpse of hope on Sunday the 6th of September. The morning sees a 3ft W swell with a light S cross-off wind at 9 mph, and the energy is low at 143, but the conditions are described as clean. It’s surfable but very ordinary – a 1 out of 10 score. That’s the best we’ve got, and it’s barely a ripple. The afternoon is light cross-on again.

Monday the 7th of September morning has a bit more size at 6ft from the W, with a light NNE cross breeze, energy at 633. But it’s still only marginal, with a score of 1. The rest of that week is a mix of messy cross-shore wind and dropping swell.

By the end of the run, from Wednesday the 9th of September, the swell plummets. We get some offshore wind on the 9th – 4ft from the WNW with a 16 mph ESE offshore, but the period is a short 6 seconds, and the energy is tiny at 143. It’s clean but weak. After that, it’s just tiny, onshore slop, with energy as low as 39 on Thursday the 10th. The long period swell on the 13th of September – 2ft at 15 seconds – is a classic groundswell, but it’s being blown flat by strong onshore winds, so don’t even bother.

Bottom line: there’s nothing here for the next two weeks. The conditions are consistently poor, with strong winds and messy surf. The only trickle of clean but tiny waves on the 6th and 7th of September isn’t enough to get excited about. Sometimes it’s like this, and the forecasts can change, but right now, I’d give this one a miss. Hang up the wetsuit and wait for a better window.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat morning. Very mild (max 19°C on Sat morning, min 16°C on Sun night). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the WSW by Mon night).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed night. Warm (max 20°C on Wed afternoon, min 16°C on Thu night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
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)
2.4
SW
8
3.5
WSW
9
2.3
WSW
9
1.9
WSW
9
2.4
WSW
8
3
W
10
2.5
W
9
2
W
10
1.4
W
9
1.1
W
9
1
W
9
1.1
W
8
1.8
WSW
7
2.4
WSW
8
2.3
W
8
2
W
8
1.8
W
8
1.9
W
9
1.8
W
9
1.7
W
9
1.4
WNW
9
Wave Graph
Metric surfscale
Energy kJ
646
1938
773
549
751
1879
1060
740
341
188
146
157
298
744
719
515
427
529
541
495
355
Wind (km/h)
35
SW
45
WNW
20
WSW
30
SW
35
SW
35
W
25
WNW
20
WNW
10
SW
15
SW
25
SW
30
SW
30
WSW
30
WSW
25
WSW
25
W
30
W
30
W
40
WNW
35
WNW
15
WNW
Wind State
cross-on
on
cross-on
cross
cross-on
on
on
on
cross-on
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
6:57PM6.33m
7:14AM6.17m
7:30PM6.41m
7:48AM6.22m
8:04PM6.36m
8:23AM6.13m
8:41PM6.16m
9:01AM5.91m
9:22PM5.83m
9:44AM5.58m
10:09PM5.40m
10:36AM5.17m
11:10PM4.93m
Low Tide
12:57PM0.34m
1:18AM0.22m
1:29PM0.24m
1:50AM0.20m
2:02PM0.26m
2:22AM0.30m
2:37PM0.41m
2:58AM0.53m
3:15PM0.67m
3:38AM0.87m
4:00PM1.03m
4:26AM1.28m
4:57PM1.45m
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
cloud
clear
cloud
rain showers
part cloud
light rain
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
6:33
6:35
6:35
6:37
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:10
8:08
8:07
8:05
8:01
8:00
 mm
4
3
3
2
4
Temp °C
19
18
17
18
18
17
17
17
16
17
18
18
19
20
18
18
18
17
17
16
16
Feels °C
15
11
14
14
12
11
13
14
14
14
14
14
16
16
15
15
13
13
10
9
13
  • 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 Gwithian Surf forecast

The above surf forecast table for Gwithian provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gwithian can be found by selecting the local surf guide option on the grey menu. Our Gwithian 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 (Gwithian) 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 Gwithian 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.

Gwithian is 6 km (4 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.

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