Surf Forecasts:
How big are the waves at Portstewart Strand today (10 Jun):
- Morning surf: Morning surf (10 Jun, local time) - 2.5ft (0.7m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (10 Jun, local time) - 2.5ft (0.7m), 9s period with WNW swell.
- Evening surf: Evening surf (10 Jun, local time) - 3ft (0.9m), 9s period with NW swell.
The current surf forecast for Portstewart Strand at 5PM is: 0.7m 9s primary swell from a Northwest direction and 0.4m 3s secondary swell from a West-northwest direction (forecast issued at 12:00pm June 10). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Jun) | 2.5ft (0.7m) | 10s |
| Afternoon (10 Jun) | 2.5ft (0.7m) | 9s |
| Evening (10 Jun) | 3ft (0.9m) | 9s |
Table - waves today at Portstewart Strand. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu morning. Very mild (max 14°C on Thu afternoon, min 9°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Wed 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 9 | WNW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 8 | WNW 8 | WNW 8 | WNW 8 | NW 7 | NW 7 | WNW 7 | WNW 8 | WNW 12 | WNW 12 | WNW 12 | NW 12 | NW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 81 | 76 | 86 | 145 | 120 | 120 | 138 | 138 | 99 | 95 | 77 | 70 | 86 | 84 | 82 | 43 | 43 | 104 | 105 | 472 | 759 | 878 | 993 | 1042 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:48PM1.22m | 3:11AM1.56m | 3:51PM1.35m | 4:10AM1.64m | 4:44PM1.49m | 5:04AM1.70m | ||||||||||||||||||
Low Tide | 8:53AM0.47m | 8:38PM0.50m | 9:49AM0.38m | 9:46PM0.43m | 10:42AM0.30m | 10:50PM0.33m | ||||||||||||||||||
 |  | |  |  |  | |  | | | | | | |  | | | | | | |  | | | |
 | 4:48 | — | — | — | — | — | 4:47 | — | — | — | — | — | — | — | 4:47 | — | — | — | — | — | — | — | 4:46 | — |
 | — | — | — | — | 10:05 | — | — | — | — | — | — | — | 10:05 | — | — | — | — | — | — | — | 10:06 | — | — | 10:07 |
mm | — | 1 | 1 | — | — | — | — | 2 | 3 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 12 | 12 | 11 | 9 | 9 | 9 | 10 | 11 | 13 | 14 | 13 | 11 | 11 | 12 | 13 | 14 | 14 | 13 | 11 | 10 | 10 | 11 |
Feels °C | 6 | 7 | 7 | 7 | 7 | 6 | 5 | 4 | 5 | 8 | 10 | 11 | 8 | 6 | 7 | 8 | 8 | 8 | 7 | 7 | 5 | 4 | 4 | 6 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 9 | — | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 8 | WNW 8 | WNW 8 | WNW 8 | NW 7 | NW 7 | WNW 13 | WNW 8 | WNW 12 | WNW 12 | WNW 12 | NW 12 | NW 12 |
| kJ | 81 | 76 | 86 | — | 120 | 120 | 138 | 138 | 99 | 95 | 77 | 70 | 86 | 84 | 82 | 43 | 43 | 18 | 105 | 472 | 759 | 878 | 993 | 1042 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | ESE 3 | — | — | — | — | WNW 9 | WNW 9 | — | WNW 13 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 25 | 17 | — | 63 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 12 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | WNW 3 | WNW 9 | — | — | — | — | SSE 2 | SSE 3 | W 3 | W 3 | W 4 | SW 3 | WSW 2 | WSW 3 | WSW 3 | WNW 7 | WNW 4 | W 3 | — | — | — | — |
| kJ | — | 4 | 5 | 145 | — | — | — | — | 1 | 2 | 2 | 8 | 10 | 1 | 1 | 1 | 3 | 104 | 17 | 6 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 440 | 440 | 1279 | 389 | 2 | 0 | 0 | 2 | 2 | 2 | 7 | 7 | 389 | 7 | 7 | 7 | 299 | 389 | 389 | 389 | 299 | 299 | 163 | 163 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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