Portstewart Strand surf forecast from 14 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 4AM (local time) - 4ft (1.2m), 6s period, NNW swell with 107 kJ wave energy.
Best Forecast Surf Conditions for Portstewart Strand this week:
The most powerful waves expected at Portstewart Strand in the next 16 days are 1.2m 6s and forecast to arrive on Sunday (Jul 19) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Tuesday (Jul 14) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 19th Jul) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Portstewart Strand over the next 16 days.
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Nearest