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Surf Forecasts:
Portballintrae surfForecast / Antrim / Ireland
48hr Weather and Surf, issued 6 pm Wednesday 20 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 2AM is: 0.4m 12s primary swell from a West-northwest direction and 0.5m 7s secondary swell from a West-northwest direction (forecast issued at 06:00pm May 20). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 2ft (0.6m) | 8s |
| Afternoon (21 May) | 1.5ft (0.5m) | 7s |
| Evening (21 May) | 1ft (0.3m) | 11s |
Table - waves today at Portballintrae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Fri night. Very mild (max 18°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 13 | WNW 13 | W 12 | WNW 12 | WNW 12 | WNW 12 | NW 8 | NW 8 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | W 11 | WNW 12 | WNW 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | |
181 | 96 | 78 | 48 | 47 | 58 | 53 | 28 | 39 | 23 | 23 | 23 | 11 | 25 | 26 | 10 | 15 | 14 | 11 | 11 | 11 | 3 | 11 | 10 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | |
High Tide | 10:18PM1.98m | 11:09AM1.64m | 11:35PM1.87m | 12:31PM1.49m | 1:40AM1.82m | |||||||||||||||||||
Low Tide | 3:40PM0.52m | 5:11AM0.63m | 4:31PM0.66m | 7:12AM0.69m | 5:28PM0.79m | 8:30AM0.69m | ||||||||||||||||||
 |  |  | | |  | | | | | | |  | | | | | |  |  |  |  | | | |
 | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — |
 | — | 9:36 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | — | — | — | — | 9:40 |
— | — | — | — | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | 2 | 3 | 2 | — | — | — | — | |
Temp °C | 14 | 14 | 13 | 11 | 11 | 12 | 14 | 17 | 17 | 15 | 15 | 14 | 13 | 12 | 14 | 16 | 18 | 17 | 13 | 14 | 13 | 12 | 13 | 16 |
10 | 12 | 11 | 8 | 6 | 7 | 12 | 15 | 14 | 13 | 12 | 10 | 8 | 8 | 10 | 13 | 15 | 15 | 12 | 12 | 11 | 10 | 10 | 13 | |
Swell 1 Height (m) Direction Period (s) | WNW 13 | WNW 13 | W 12 | WNW 7 | WNW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | WNW 7 | WNW 11 | ESE 4 | ESE 3 | WNW 12 | SE 4 | W 12 | W 12 | W 12 | W 5 | W 12 | WNW 6 |
 kJ | 181 | 96 | 78 | 17 | 37 | 58 | 53 | 28 | 25 | 12 | 11 | 7 | 4 | 25 | 3 | 1 | 15 | 3 | 11 | 11 | 11 | 2 | 11 | 3 |
Swell 2 Height (m) Direction Period (s) | — | WNW 6 | WNW 6 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 6 | WNW 12 | W 11 | ESE 3 | WNW 12 | ESE 5 | ESE 4 | W 6 | W 10 | WNW 5 | W 11 |
| kJ | — | 13 | 15 | 48 | 47 | 46 | 25 | 24 | 39 | 23 | 23 | 23 | 11 | 4 | 26 | 10 | 1 | 14 | 2 | 1 | 3 | 2 | 3 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 3 | ESE 3 | S 6 | N 9 | N 9 | N 8 | N 8 | — | WNW 6 | NW 6 | NW 6 | NW 6 | NW 6 | N 6 | — | W 12 | — | — |
| kJ | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 2 | 1 | 1 | — | 4 | 2 | 2 | 1 | 1 | 1 | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 2 | SSW 2 | S 3 | — | — | SSE 2 | SE 2 | SE 3 | SE 4 | — | — | SSW 2 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 1 | 1 | 1 | — | — | 1 | 1 | 5 | 7 | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 55 | 0 | 0 | 0 | 0 | 8 | 3 | 53 | 3 | 70 | 70 | 99 | 94 | 70 | 70 | 70 | 53 | 53 | 52 | 53 | 52 | 52 | 53 | 53 |
Best forecast wave conditions in Antrim | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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