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Surf Forecasts:
Portballintrae surfForecast / Antrim / Ireland
48hr Weather and Surf, issued 6 pm Monday 18 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
10.1° C
(Which is normal for this time of year)How big are the waves at Portballintrae today?
The current surf forecast for Portballintrae at 12AM is: 0.7m 10s primary swell from a West-northwest direction (forecast issued at 06:00pm May 18). An open ocean swell of 1.1m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 3ft (0.9m) | 11s |
| Evening (19 May) | 2.5ft (0.8m) | 10s |
Table - waves today at Portballintrae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Mon night. Very mild (max 17°C on Thu morning, min 9°C on Mon night). Winds decreasing (fresh winds from the SE on Mon night, light winds from the SW by Wed night). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NW 9 | WNW 9 | WNW 9 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 7 | |
183 | 143 | 130 | 88 | 65 | 38 | 37 | 23 | 16 | 17 | 26 | 98 | 209 | 242 | 233 | 147 | 137 | 96 | 86 | 48 | 47 | 46 | 25 | 26 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-on | cross | cross | cross | off | off | cross-off | cross-off | cross-off | |
High Tide | 8:34PM2.13m | 9:08AM1.99m | 9:22PM2.08m | 10:04AM1.82m | 10:18PM1.98m | 11:09AM1.64m | ||||||||||||||||||
Low Tide | 2:09PM0.32m | 2:48AM0.37m | 2:53PM0.40m | 3:48AM0.50m | 3:40PM0.52m | 5:11AM0.63m | ||||||||||||||||||
 | |  | | |  | | | | | | |  | |  |  | | | |  | | | | | |
 | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — |
 | — | 9:32 | — | — | — | — | — | — | — | 9:34 | — | — | — | — | — | — | — | 9:36 | — | — | — | — | — | 9:37 |
— | — | 1 | 4 | 1 | 1 | 1 | — | 1 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | |
Temp °C | 12 | 11 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 13 | 10 | 10 | 10 | 10 | 12 | 14 | 13 | 14 | 14 | 12 | 12 | 13 | 15 | 17 |
8 | 7 | 4 | 3 | 4 | 7 | 7 | 9 | 10 | 10 | 7 | 7 | 6 | 5 | 7 | 10 | 10 | 11 | 12 | 10 | 8 | 10 | 13 | 15 | |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NW 9 | WNW 9 | WNW 9 | WNW 16 | WNW 16 | WNW 15 | WNW 15 | WNW 14 | WNW 14 | WNW 13 | WNW 6 | WNW 12 | WNW 12 | WNW 12 | NW 6 | WNW 7 | NW 7 |
 kJ | 183 | 143 | 130 | 88 | 65 | 38 | 37 | 23 | 16 | 16 | 26 | 98 | 209 | 242 | 233 | 147 | 137 | 23 | 86 | 48 | 47 | 10 | 17 | 26 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 15 | W 15 | NW 14 | ESE 6 | ESE 4 | WNW 13 | WNW 10 | WNW 10 | W 4 | — | — | WNW 13 | WNW 13 | WNW 6 | WNW 6 | WNW 6 | WNW 12 | WNW 11 | WNW 11 |
| kJ | — | — | — | — | — | 4 | 4 | 8 | 3 | 2 | 17 | 18 | 20 | 2 | — | — | 137 | 96 | 14 | 15 | 15 | 46 | 25 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 13 | WNW 13 | WNW 9 | ESE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 7 | 17 | 8 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | SE 3 | SE 4 | ESE 5 | ESE 6 | ESE 6 | SE 6 | SE 3 | SSE 3 | S 3 | SE 3 | — | SW 2 | SSW 2 | SW 3 | W 8 | WNW 7 | — | — | — | — | — | SSW 2 | S 2 |
| kJ | 3 | 4 | 15 | 59 | 114 | 47 | 32 | 6 | 4 | 1 | 2 | — | 1 | 1 | 2 | 64 | 55 | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 137 | 70 | 0 | 188 | 99 | 177 | 53 | 0 | 0 | 7 | 3 | 7 | 55 | 3 | 3 | 3 | 0 | 0 | 3 | 74 | 3 |
Best forecast wave conditions in Antrim | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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