Grunta Beach Surf Break

Lat Long: 51.18° N 4.22° W

Grunta Beach 48 hour detailed Surf Forecast

Issued: 12 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Grunta Beach sea temperature is
18.9° C
2.3° 

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


How big are the waves at Grunta Beach today (17 Aug):

  • Morning surf: Morning surf (17 Aug, local time) - 2.5ft (0.8m), 6s period with W swell.
  • Afternoon surf: Afternoon surf (17 Aug, local time) - 2.5ft (0.8m), 6s period with W swell.
  • Evening surf: Evening surf (17 Aug, local time) - 2.5ft (0.7m), 7s period with W swell.

The current surf forecast for Grunta Beach at 8PM is: 0.7m 6s primary swell from a West direction and 0.4m 7s secondary swell from a West direction, 0.1m 18s secondary swell from a West direction (forecast issued at 12:00pm August 17). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (17 Aug)2.5ft (0.8m)6s
Afternoon (17 Aug)2.5ft (0.8m)6s
Evening (17 Aug)2.5ft (0.7m)7s

Table - waves today at Grunta Beach. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue night. Very mild (max 18°C on Mon morning, min 16°C on Tue night). Mainly fresh winds.

Mon
17
Tuesday
18
Wednesday
19
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
W
6
0.8
W
6
0.8
W
6
0.7
W
6
0.7
W
7
0.8
W
7
1.1
W
6
1.4
W
6
1.3
W
7
1.1
W
6
1
W
6
1
W
6
1
W
6
1.2
W
6
1.3
W
6
1.3
W
6
1.2
W
6
1.2
W
6
1.4
W
6
1.4
W
6
1.6
W
7
Wave Graph
Metric surfscale
Energy kJ
39
41
42
29
53
66
72
162
144
91
76
79
79
109
137
132
113
109
144
158
233
Wind (km/h)
15
WNW
20
WNW
20
W
20
W
25
WSW
25
WSW
30
W
20
WNW
15
NW
20
WNW
25
W
25
WSW
30
W
25
W
20
W
20
W
25
W
30
W
30
WSW
30
WSW
30
W
Wind State
cross-on
cross-on
on
on
on
cross-on
on
on
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
9:53AM8.77m
10:07PM8.73m
10:24AM8.29m
10:39PM8.16m
10:56AM7.74m
Low Tide
3:44PM1.26m
4:05AM1.56m
4:14PM1.74m
4:32AM2.08m
4:46PM2.28m
cloud
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
rain showers
rain showers
rain showers
rain showers
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:35
8:32
8:30
 mm
1
1
1
1
1
1
Temp °C
18
18
17
17
17
17
18
18
17
17
17
18
17
17
17
16
17
17
18
17
17
Feels °C
18
16
14
15
14
14
15
17
16
14
14
15
13
14
14
13
13
12
13
12
12
  • 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
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grunta Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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