Surf Forecasts:
How big are the waves at Machir Bay (Islay) today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 10ft (3.0m), 12s period with W swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 8ft (2.5m), 11s period with W swell.
- Evening surf: Evening surf (20 Sep, local time) - 7.5ft (2.3m), 11s period with W swell.
The current surf forecast for Machir Bay (Islay) at 10AM is: 3.0m 12s primary swell from a West direction (forecast issued at 06:00am September 20). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 10ft (3.0m) | 12s |
| Afternoon (20 Sep) | 8ft (2.5m) | 11s |
| Evening (20 Sep) | 7.5ft (2.3m) | 11s |
Table - waves today at Machir Bay (Islay). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Very mild (max 19°C on Mon afternoon, min 11°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun morning, light winds from the N by Tue night). | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 4125 | 3355 | 2601 | 2039 | 1702 | 1430 | 1234 | 1174 | 925 | 736 | 690 | 610 | 498 | 402 | 377 | 362 | 417 | 440 | 709 | 682 | 573 | 449 | 1352 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | cross-on | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-on | cross | cross | on | cross-on | cross-on | cross | cross |
High Tide | 1:27PM1.74m | 2:21AM1.64m | 3:24PM1.90m | 3:39AM1.83m | 4:11PM2.13m | ||||||||||||||||||
Low Tide | 8:19PM1.22m | 8:40AM1.06m | 9:41PM1.06m | 9:44AM0.86m | |||||||||||||||||||
 | |  | |  |  |  | |  | | | | | | | | | | | | |  | | |
 | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — |
 | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:29 | — | — | — | — | — | — | — | 7:25 | — |
mm | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 13 | 14 | 17 | 19 | 19 | 19 | 18 | 17 | 16 | 13 | 12 | 12 | 12 | 12 |
Feels °C | 3 | 4 | 6 | 7 | 7 | 8 | 9 | 6 | 5 | 10 | 12 | 15 | 18 | 18 | 18 | 16 | 14 | 13 | 11 | 10 | 11 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 14 |
| kJ | — | — | — | — | 1702 | 1430 | 1234 | 1174 | 925 | 736 | 690 | 610 | 498 | 402 | 377 | 362 | 417 | 440 | 709 | 682 | 573 | 449 | 1352 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | — | SSE 3 | SSE 3 | — | — | W 12 | — | W 20 | W 18 | W 15 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | — | 145 | — | 8 | 56 | 343 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 11 | — | — | — | — | S 3 | SSW 3 | S 3 | S 3 | SSE 4 | — | — | SSE 3 | S 3 | S 3 | S 3 | — | — | — | — |
| kJ | 4125 | 3355 | 2601 | 2039 | — | — | — | — | 4 | 3 | 3 | 1 | 1 | — | — | 1 | 2 | 2 | 2 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 455 | 409 | 421 | 223 | 223 | 65 | 14 | 62 | 61 | 14 | 14 | 14 | 0 | 0 | 0 | 14 | 14 | 14 | 61 | 71 | 69 | 52 | 4 |
Best forecast wave conditions in Inner Hebrides | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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