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Surf Forecasts:
Harbour surfForecast / Donegal / Ireland
48hr Weather and Surf, issued 6 am Thursday 21 May 2026 ISTForecast update in hr min s Forecast update imminent
Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harbour sea temperature is
11.8° C
(Which is slightly warmer than usual)How big are the waves at Harbour today?
The current surf forecast for Harbour at 10AM is: 0.7m 11s primary swell from a West direction and 0.4m 8s secondary swell from a Northwest direction (forecast issued at 06:00am May 21). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 2.5ft (0.7m) | 11s |
| Afternoon (21 May) | 2.5ft (0.8m) | 11s |
| Evening (21 May) | 2.5ft (0.7m) | 11s |
Table - waves today at Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Thu afternoon. Very mild (max 18°C on Fri afternoon, min 10°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
W 11 | W 11 | W 11 | WSW 11 | W 11 | W 11 | W 11 | W 10 | W 11 | W 11 | W 11 | W 11 | W 12 | W 11 | W 11 | W 10 | WSW 10 | W 11 | W 9 | WSW 10 | W 10 | W 9 | W 9 | W 10 | |
206 | 149 | 114 | 153 | 112 | 110 | 110 | 108 | 112 | 114 | 85 | 86 | 98 | 83 | 110 | 74 | 80 | 83 | 41 | 74 | 68 | 87 | 85 | 117 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:01AM2.84m | 10:25PM3.36m | 11:05AM2.60m | 11:29PM3.20m | 12:16PM2.44m | 00:38AM3.07m | ||||||||||||||||||
Low Tide | 3:44AM0.36m | 3:45PM0.58m | 4:50AM0.56m | 4:45PM0.79m | 6:06AM0.70m | 5:57PM0.95m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | |  | | | | | |  | |  | | |
 | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | 5:15 |
 | — | — | — | — | — | 9:40 | — | — | — | — | — | — | — | 9:42 | — | — | — | — | — | — | — | 9:44 | — | 9:45 |
3 | — | — | — | 3 | 2 | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 15 | 17 | 15 | 15 | 15 | 13 | 13 | 13 | 15 | 17 | 18 | 16 | 13 | 12 | 11 | 10 | 13 | 16 | 17 | 16 | 14 | 13 |
10 | 12 | 13 | 15 | 13 | 11 | 11 | 9 | 10 | 11 | 12 | 13 | 14 | 14 | 11 | 10 | 9 | 8 | 10 | 12 | 13 | 13 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | W 11 | W 11 | W 11 | WSW 11 | W 11 | W 11 | W 11 | W 10 | W 11 | W 11 | W 11 | W 11 | W 12 | W 11 | W 11 | W 10 | WSW 10 | W 11 | W 9 | WSW 10 | W 10 | W 9 | W 9 | W 10 |
 kJ | 206 | 149 | 114 | 153 | 112 | 110 | 110 | 108 | 112 | 114 | 85 | 86 | 98 | 83 | 110 | 74 | 80 | 83 | 41 | 74 | 68 | 87 | 85 | 117 |
Swell 2 Height (m) Direction Period (s) | NW 6 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | N 7 | N 6 | — | — | W 12 | W 12 | — | W 11 | — | — | — | — | — |
| kJ | 11 | 23 | 22 | 14 | 8 | 8 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | — | — | 11 | 12 | — | 22 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSW 3 | SSW 3 | — | SSW 2 | S 3 | S 3 | S 3 | S 3 | SSE 3 | S 3 | SSW 3 | SSW 3 | SSW 3 | — | SSW 2 | — | S 3 | SSW 3 | — | — | — | — | — |
| kJ | 3 | 3 | 3 | — | 1 | 2 | 5 | 5 | 5 | 3 | 1 | 2 | 2 | 1 | — | 1 | — | 1 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 37 | 0 | 37 | 12 | 37 | 77 | 30 | 0 | 0 | 0 | 37 | 37 | 64 | 62 | 0 | 0 | 0 | 0 | 1 | 37 | 38 | 0 | 0 | 0 |
Best forecast wave conditions in Donegal | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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