Portballintrae surf break

Portballintrae surfForecast / Antrim / Ireland

information circle48hr Weather and Surf, issued 6 am Monday 11 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Portballintrae surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Portballintrae sea temperature is
9.9° C
(Which is normal for this time of year)

How big are the waves at Portballintrae today?

The current surf forecast for Portballintrae at 1PM is: 1.4m 8s primary swell from a North-northwest direction and 0.1m 15s secondary swell from a Northwest direction (forecast issued at 06:00am May 11). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (11 May)5ft (1.5m)8s
Afternoon (11 May)4.5ft (1.4m)8s
Evening (11 May)4ft (1.2m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 6mm), mostly falling on Tue night. Very mild (max 10°C on Tue morning, min 7°C on Mon morning). Winds increasing (light winds from the W on Mon night, strong winds from the WNW by Tue night).

Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
1 AM
Rating
(10 max)
0
0
0
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 MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.5
NW
7
1.5
NNW
8
1.5
NNW
8
1.4
NNW
8
1.4
NW
8
1.3
NW
9
1.2
NW
9
1.1
NW
9
1.1
NW
9
1.7
NW
7
2
NW
8
2.1
NW
9
2.2
NW
9
2.2
NW
10
2.5
NW
10
3
NW
11
3.5
NW
11
3.5
NW
12
3.5
NW
12
3
NW
12
3
NW
12
3
NW
12
2.5
NW
11
2.5
NW
11
Wave Graph
Metric surfscale
Energy kJ
235
271
274
248
256
243
225
203
211
255
470
671
840
989
1422
2150
2911
3754
3611
2667
2113
2043
1781
1605
Wind (km/h)
25
N
30
N
25
N
25
NNW
25
NW
20
NW
15
W
25
W
30
W
35
WNW
35
WNW
35
WNW
35
WNW
35
W
40
W
45
WNW
45
WNW
40
NW
35
NW
35
NW
35
NNW
40
NNW
35
NNW
35
NNW
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
High Tide
3:29AM1.70m
4:34PM1.39m
4:11AM1.79m
5:09PM1.49m
4:50AM1.90m
5:37PM1.62m
Low Tide
10:19AM0.79m
9:58PM0.85m
10:51AM0.69m
10:35PM0.73m
11:15AM0.60m
11:10PM0.59m
light rain
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
cloud
clear
clear
clear
clear
clear
light rain
light rain
light rain
rain showers
rain showers
rain showers
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:22
5:22
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:20
9:22
9:23
9:24
1
1
1
1
1
1
1
Temp °C
8
8
8
7
7
7
8
9
9
9
10
10
10
10
8
8
7
8
9
9
9
9
9
8
2
1
1
1
0
1
4
4
3
1
2
1
1
2
-1
-2
-3
-1
1
1
1
0
1
0
Swell 1
Height (m)
Direction
Period (s)
0.1
NW
15
1.3
NW
9
1.2
NW
9
1.1
NW
9
1.1
NW
9
Energy kJ
8
243
225
203
211
Swell 2
Height (m)
Direction
Period (s)
Energy kJ
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.5
NW
7
1.5
NNW
8
1.5
NNW
8
1.4
NNW
8
1.4
NW
8
1.7
NW
7
2
NW
8
2.1
NW
9
2.2
NW
9
2.2
NW
10
2.5
NW
10
3
NW
11
3.5
NW
11
3.5
NW
12
3.5
NW
12
3
NW
12
3
NW
12
3
NW
12
2.5
NW
11
2.5
NW
11
Energy kJ
235
271
274
248
256
255
470
671
840
989
1422
2150
2911
3754
3611
2667
2113
2043
1781
1605
Nearest Offshore or Glassy
Rating
(10 max)
3
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
4
4
2
1
2
1
1
2
Distance (km)
343
329
54
55
253
86
3
267
287
324
408
580
428
324
324
326
373
373
1266
946
1266
944
944
587
Best forecast wave conditions in Antrim
Rating
(10 max)
2
Best forecast wave conditions in Ireland
Rating
(10 max)
2
2
1
1
1
2
Header Global
Rating
(10 max)
8
6
5
4
5
5
5
9
9
6
9
9
9
9
9
8
9
9
9
7
6
5
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

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