Derrynane Surf Break

Lat Long: 51.76° N 10.17° W

Derrynane 48 hour detailed Surf Forecast

Issued: 12 pm 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Derrynane sea temperature is
14.3°C
0.7° 

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


How big are the waves at Derrynane today (17 Oct):

  • Morning surf: Morning surf (17 Oct, local time) - 3.5ft (1.0m), 11s period with WSW swell.
  • Afternoon surf: Afternoon surf (17 Oct, local time) - 3ft (0.9m), 11s period with WSW swell.
  • Evening surf: Evening surf (17 Oct, local time) - 2.5ft (0.8m), 10s period with WSW swell.

The current surf forecast for Derrynane at 9PM is: 0.8m 10s primary swell from a West-southwest direction (forecast issued at 12:00pm October 17). An open ocean swell of 1.0m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (17 Oct)3.5ft (1.0m)11s
Afternoon (17 Oct)3ft (0.9m)11s
Evening (17 Oct)2.5ft (0.8m)10s

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


Short Range Forecast

Mostly dry. Very mild (max 12°C on Mon night, min 8°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the SSE by Mon night).

Sat
17
Sunday
18
Monday
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)
1
0
0
0
1
1
1
1
1
1
1
1
2
2
3
3
1
4
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)
1
WSW
11
0.9
WSW
11
1
W
11
0.9
WSW
10
0.8
WSW
10
0.7
WSW
10
0.6
W
10
0.6
W
10
0.7
W
10
0.8
W
10
1
W
12
1
W
12
0.9
WSW
11
0.8
W
17
1.1
W
16
1.6
W
15
0.8
WSW
11
2
W
14
0.2
WSW
11
0.1
S
11
0.1
S
11
Wave Graph
Metric surfscale
Energy kJ
259
198
229
177
144
106
74
70
94
130
289
270
187
367
615
1119
161
1559
12
2
2
Wind (km/h)
10
ENE
5
SE
10
SSE
10
SSE
10
ESE
10
E
5
E
5
E
5
ENE
0
NE
5
WNW
10
NW
10
NNE
5
ENE
10
E
5
ENE
5
NE
5
ENE
10
SSW
5
ENE
10
E
Wind State
cross-off
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross
off
off
cross-off
off
off
glassy
cross-on
cross-off
cross-off
High Tide
9:11AM2.60m
9:49PM2.38m
10:14AM2.43m
11:07PM2.25m
11:36AM2.37m
Low Tide
3:18PM1.11m
3:36AM1.30m
4:34PM1.26m
5:05AM1.42m
6:18PM1.25m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:07
—
—
—
—
—
—
8:08
—
—
—
—
—
—
—
8:10
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:43
—
—
—
—
—
—
—
6:40
—
—
—
—
—
—
—
6:38
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
10
10
11
11
10
9
9
9
9
10
10
11
10
10
9
8
9
11
11
11
11
Feels °C
7
8
8
8
7
6
7
7
7
9
8
8
7
8
6
5
7
9
8
9
8
  • 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 

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