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Surf Forecasts:
Portballintrae surfForecast / Antrim / Ireland
48hr Weather and Surf, issued 12 pm Monday 15 Sep 2025 BST
How big are the waves at Portballintrae today?
The current surf forecast for Portballintrae at 3PM is: 1.6m 14s primary swell from a West-northwest direction and 0.6m 14s secondary swell from a West-northwest direction, 0.1m 11s secondary swell from a North direction (forecast issued at 12:00pm September 15). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 1.5ft (0.4m) | 15s |
| Afternoon (15 Sep) | 5ft (1.6m) | 14s |
| Evening (15 Sep) | 6ft (1.8m) | 12s |
Table - waves today at Portballintrae. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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 | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 13 | 12 | 10 | 13 | 13 | 12 | 6 | 6 | 6 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 16 | 16 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 108 | 252 | 889 | 425 | 904 | 646 | 403 | 681 | 605 | 191 | 228 | 162 | 248 | 177 | 123 | 90 | 67 | 40 | 30 | 24 | 133 | 873 | 1082 | 834 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- off | off | off | off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:31PM 1.68 | 3:43AM 1.63 | 4:41PM 1.83 | 4:52AM 1.66 | 5:33PM 1.96 | 5:41AM 1.72 | ||||||||||||||||||
Low Tide / height (m) | 7:11AM 1.11 | 9:49PM 0.91 | 9:41AM 1.12 | 11:07PM 0.82 | 10:45AM 1.04 | 12:06AM 0.74 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 7:44 | - | - | - | - | - | - | - | 7:42 | - | - | - | - | - | - | - | 7:38 | - | - | - | - |
 |  | | |  | | | | | | |  |  | |  | |  | | | | | | | | |
Rain (mm) | - | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | - | - | - | - | - | 6 | 3 | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 11 | 11 | 13 | 14 | 17 | 17 | 15 | 13 | 12 | 12 | 12 |
| Feels °C (?) | 9 | 10 | 7 | 6 | 6 | 7 | 7 | 6 | 6 | 8 | 8 | 9 | 10 | 8 | 7 | 6 | 10 | 13 | 12 | 10 | 8 | 7 | 8 | 7 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Antrim
Wind reports 2 km away suggest it is still onshore at Portballintrae (light winds from the NW at Causeway Head wx). 0.8m 3s local chop from the WNW with a 0.5m 14s groundswell, also from the WNW. 2 swells combining to make bigger set waves.
Actual: 57 min ago
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