Derrynane Surf Break

Lat Long: 51.76° N 10.17° W

Derrynane 48 hour detailed Surf Forecast

Issued: 6 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Derrynane sea temperature is
16.0°C
0.9° 

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 (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 0.5ft (0.2m), 14s period with SSW swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 0.5ft (0.2m), 14s period with SSW swell.
  • Evening surf: Evening surf (20 Sep, local time) - 0.5ft (0.2m), 14s period with SSW swell.

The current surf forecast for Derrynane at 3PM is: 0.2m 14s primary swell from a South-southwest direction (forecast issued at 06:00am September 20). An open ocean swell of 2.0m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (20 Sep)0.5ft (0.2m)14s
Afternoon (20 Sep)0.5ft (0.2m)14s
Evening (20 Sep)0.5ft (0.2m)14s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun night, min 12°C on Tue night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
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
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
1
2
2
2
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
1.4
W
10
1.4
W
9
1.6
W
10
1.8
W
10
1.9
W
11
1.9
W
11
1.8
W
11
1.7
W
15
2.5
W
15
2.5
W
14
Wave Graph
Metric surfscale
Energy kJ
21
21
20
20
20
18
18
17
17
17
17
17
17
400
341
524
689
866
850
723
1246
2863
2487
Wind (km/h)
15
NW
10
NNW
5
E
10
SSE
20
SE
20
SE
20
SE
10
SE
10
SSE
10
SSE
10
SSE
15
SSE
15
S
15
S
15
S
10
S
10
SSW
10
S
10
S
10
SSW
10
S
5
S
5
SE
Wind State
cross
cross-off
cross-off
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
12:27PM2.33m
1:27AM2.27m
1:52PM2.45m
2:35AM2.44m
2:48PM2.67m
Low Tide
7:13PM1.30m
7:41AM1.35m
8:24PM1.10m
8:39AM1.14m
9:09PM0.85m
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:42
7:39
 mm
Temp °C
14
13
13
14
15
15
16
18
18
17
17
18
17
17
17
17
16
16
16
16
17
16
16
Feels °C
12
12
12
11
12
12
14
18
18
17
17
17
16
17
17
17
16
16
16
16
17
16
17
  • 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 Derrynane 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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