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Surf Forecasts:
Mill Bay surfForecast / Scot – Orkney / UK
48hr Weather and Surf, issued 6 pm Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Mill Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mill Bay sea temperature is
8.9° C
(Which is normal for this time of year)How big are the waves at Mill Bay today?
The current surf forecast for Mill Bay at 9PM is: 1.2m 5s primary swell from a Southeast direction and 0.4m 8s secondary swell from a North-northeast direction (forecast issued at 06:00pm May 18). An open ocean swell of 0.3m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 2.5ft (0.7m) | 5s |
| Evening (18 May) | 4ft (1.2m) | 5s |
Table - waves today at Mill Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Wed afternoon. Very mild (max 10°C on Tue night, min 9°C on Mon afternoon). Winds decreasing (near gales from the SE on Tue afternoon, light winds from the SW by Wed morning). | ||||||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | E 7 | SE 7 | E 6 | E 6 | E 6 | |
25 | 49 | 96 | 136 | 154 | 203 | 295 | 384 | 641 | 637 | 667 | 667 | 539 | 385 | 305 | 143 | 107 | 77 | 75 | 31 | 38 | 19 | 11 | 6 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | off | cross-off | off | off | off | off | off | cross-off | cross-off | |
High Tide | 00:32AM2.68m | 1:09PM2.61m | 1:20AM2.63m | 2:06PM2.45m | 2:12AM2.55m | |||||||||||||||||||
Low Tide | 6:09PM0.21m | 6:35AM0.04m | 6:56PM0.37m | 7:28AM0.10m | 7:45PM0.54m | 8:26AM0.20m | ||||||||||||||||||
 | |  |  | |  | | | | | | | | | |  |  | |  | |  | | | | |
 | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:26 | — | — | — |
 | — | 9:40 | — | — | — | — | — | — | — | 9:43 | — | — | — | — | — | — | — | 9:45 | — | — | — | — | — | 9:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | — | — | — | — | — | |
Temp °C | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
3 | 1 | 1 | 1 | 0 | 0 | -1 | -1 | -2 | 0 | 1 | 1 | 2 | 4 | 4 | 8 | 7 | 8 | 5 | 4 | 5 | 5 | 5 | 4 | |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | N 8 | N 8 | N 8 | N 7 | W 16 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SSE 7 | SSE 7 | E 6 |
 kJ | 23 | 23 | 22 | 22 | 13 | 13 | 12 | 6 | 6 | 1 | 1 | 1 | 1 | 5 | 305 | 143 | 107 | 77 | 75 | 49 | 38 | 41 | 31 | 6 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 10 | W 9 | W 9 | W 9 | W 9 | N 7 | NW 16 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | WNW 12 |
| kJ | 24 | 24 | 23 | 11 | 10 | 10 | 10 | 10 | 2 | 2 | 2 | 2 | 2 | 1 | 10 | 56 | 58 | 60 | 44 | 31 | 28 | 19 | 11 | 14 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | W 11 | W 10 | W 10 | W 10 | — | — | W 15 | — | W 13 | W 13 | W 16 | W 8 | N 7 | WNW 15 | E 9 | WNW 14 | N 8 | W 13 | W 13 | W 12 | WNW 6 | N 7 |
| kJ | 2 | 2 | 2 | 2 | 2 | 2 | — | — | 4 | — | 4 | 3 | 5 | 1 | 1 | 23 | 6 | 20 | 1 | 14 | 13 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | — | — | — | — | W 14 | WSW 3 | WSW 4 | SW 3 | SSW 3 | SSE 7 |
| kJ | 25 | 49 | 96 | 136 | 154 | 203 | 295 | 384 | 641 | 637 | 667 | 667 | 539 | 385 | — | — | — | — | 96 | 9 | 11 | 6 | 3 | 51 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 41 | 41 | 114 | 114 | 155 | 114 | 242 | 242 | 468 | 255 | 155 | 114 | 114 | 76 | 73 | 43 | 38 | 0 | 0 | 24 | 38 | 63 | 63 | 24 |
Best forecast wave conditions in Orkney Islands | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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