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Surf Forecasts:
Portballintrae surfForecast / Antrim / Ireland
48hr Weather and Surf, issued 6 am Monday 11 May 2026 BSTForecast 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) & Date | Wave Height | Wave 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 ForecastLight 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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 7 | NNW 8 | NNW 8 | NNW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 7 | NW 8 | NW 9 | NW 9 | NW 10 | NW 10 | NW 11 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | |
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) | ||||||||||||||||||||||||
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 | ||||||||||||||||||
 |  | | | |  |  | |  | | | | | |  | | |  |  | | | | | | |
 | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | 5:20 |
 | — | — | — | — | — | 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) | — | — | — | NW 15 | — | NW 9 | NW 9 | NW 9 | NW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 kJ | — | — | — | 8 | — | 243 | 225 | 203 | 211 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 7 | NNW 8 | NNW 8 | NNW 8 | NW 8 | — | — | — | — | NW 7 | NW 8 | NW 9 | NW 9 | NW 10 | NW 10 | NW 11 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 |
| 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 | ||||||||||||||||||||||||
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 | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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