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Surf Forecasts:
Portballintrae surfForecast / Antrim / Ireland
48hr Weather and Surf, issued 12 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
9.8° C
(Which is normal for this time of year)How big are the waves at Portballintrae today?
The current surf forecast for Portballintrae at 7AM is: 1.6m 7s primary swell from a North-northwest direction (forecast issued at 12:00am May 11). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 4.5ft (1.4m) | 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 9mm), mostly falling on Sun night. Very mild (max 10°C on Tue morning, min 7°C on Sun night). Winds increasing (light winds from the WSW on Mon night, strong winds from the NNW by Wed afternoon). | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
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 | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NW 7 | NW 7 | NNW 7 | NW 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 10 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | |
162 | 235 | 279 | 229 | 292 | 250 | 243 | 225 | 203 | 242 | 296 | 440 | 655 | 783 | 970 | 1195 | 1909 | 2859 | 3754 | 3517 | 2711 | 2227 | 2190 | 2268 | |
Wind (km/h) | ||||||||||||||||||||||||
on | 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 | on | on | on | on | cross-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 | |||||||||||||||||||
 | |  | | | |  |  | | |  | | | | |  | | |  |  | | | |  | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:20 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:23 | — |
1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | |
Temp °C | 9 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 8 | 7 | 8 | 9 | 9 | 9 | 9 | 8 |
3 | 1 | -1 | -1 | 1 | 0 | 2 | 4 | 4 | 3 | 1 | 2 | 1 | 1 | 2 | 1 | -2 | -3 | -1 | 1 | 1 | 0 | -1 | -2 | |
Swell 1 Height (m) Direction Period (s) | W 10 | — | — | NW 8 | NW 15 | — | NW 9 | NW 9 | NW 9 | NW 9 | — | — | — | — | NW 10 | — | — | — | — | — | — | — | — | — |
 kJ | 2 | — | — | 229 | 8 | — | 243 | 225 | 203 | 242 | — | — | — | — | 970 | — | — | — | — | — | — | — | — | — |
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 | NW 7 | NNW 7 | — | NNW 8 | NW 8 | — | — | — | — | NW 7 | NW 8 | NW 9 | NW 9 | — | NW 10 | NW 10 | NW 11 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 |
| kJ | 162 | 235 | 279 | — | 292 | 250 | — | — | — | — | 296 | 440 | 655 | 783 | — | 1195 | 1909 | 2859 | 3754 | 3517 | 2711 | 2227 | 2190 | 2268 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 383 | 343 | 287 | 54 | 140 | 249 | 253 | 16 | 267 | 293 | 293 | 395 | 598 | 313 | 324 | 326 | 324 | 387 | 419 | 429 | 951 | 1020 | 921 | 293 |
Best forecast wave conditions in Antrim | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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