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Birsay Bay Weather Forecast

GFS 0.5° atmospheric and GFSWave 0.25° marine forecast data for Birsay Bay.

Thursday 17 September (Today)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
13:00
26.3kts
32.6kts
2.3m
7.4sec
-1mm
-1%
13°C
12°C
  • ●
  • ●
  • ●
16:00
25kts
30.2kts
2.7m
8.4sec
1.5mm
55%
13°C
12°C
  • ●
  • ●
  • ●
19:00
27.2kts
32.8kts
3.3m
10sec
2.1mm
30%
13°C
12°C
  • ●
  • ●
  • ●
22:00
28.6kts
34.6kts
3.7m
11sec
0.4mm
3%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:44 / Sunset: 19:30 Twilight: 06:03 / 20:11

°C

Friday 18 September (Tomorrow)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
30.7kts
37.5kts
3.8m
11sec
1.9mm
9%
13°C
11°C
  • ●
  • ●
  • ●
04:00
30.6kts
35.6kts
3.7m
10.9sec
0.4mm
4%
13°C
11°C
  • ●
  • ●
  • ●
07:00
26.2kts
35.5kts
3.4m
10.6sec
0.5mm
2%
13°C
12°C
  • ●
  • ●
  • ●
10:00
25.1kts
30.4kts
2.9m
10sec
0.6mm
14%
13°C
12°C
  • ●
  • ●
  • ●
13:00
24.7kts
29.4kts
2.7m
9.8sec
1.1mm
16%
13°C
12°C
  • ●
  • ●
  • ●
16:00
13.6kts
19.7kts
2.4m
9.8sec
0.2mm
4%
13°C
12°C
  • ●
  • ●
  • ●
19:00
20.6kts
23.2kts
2.1m
8.9sec
1.5mm
14%
13°C
11°C
  • ●
  • ●
  • ●
22:00
24.2kts
34.1kts
2.2m
8.6sec
1.2mm
59%
13°C
13°C
  • ●
  • ●
  • ●

Sunrise: 06:47 / Sunset: 19:27 Twilight: 06:06 / 20:08

Saturday 19 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
26.3kts
33.6kts
2.5m
8.3sec
1.7mm
39%
13°C
12°C
  • ●
  • ●
  • ●
04:00
25.2kts
32.3kts
2.4m
7.9sec
0.8mm
4%
13°C
12°C
  • ●
  • ●
  • ●
07:00
26.2kts
32.7kts
2.4m
7.6sec
2.4mm
2%
13°C
12°C
  • ●
  • ●
  • ●
10:00
30.6kts
36.7kts
2.5m
7.5sec
1.4mm
1%
13°C
12°C
  • ●
  • ●
  • ●
13:00
31.7kts
38.5kts
2.9m
7.7sec
1.8mm
1%
13°C
12°C
  • ●
  • ●
  • ●
16:00
33kts
41.8kts
3.1m
7.9sec
0.1mm
3%
13°C
12°C
  • ●
  • ●
  • ●
19:00
34.8kts
42.4kts
3.5m
8.3sec
0.1mm
2%
13°C
12°C
  • ●
  • ●
  • ●
22:00
34.1kts
41kts
3.6m
8.7sec
0.6mm
33%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:49 / Sunset: 19:24 Twilight: 06:08 / 20:05

Sunday 20 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
33.4kts
40.8kts
3.6m
8.7sec
1.7mm
30%
13°C
12°C
  • ●
  • ●
  • ●
04:00
33.2kts
39.7kts
3.6m
8.7sec
0.7mm
23%
13°C
11°C
  • ●
  • ●
  • ●
07:00
33.7kts
39.1kts
3.6m
8.6sec
0.9mm
12%
13°C
11°C
  • ●
  • ●
  • ●
10:00
33kts
39.4kts
3.5m
8.6sec
0.4mm
16%
13°C
12°C
  • ●
  • ●
  • ●
13:00
31.3kts
39.2kts
3.3m
8.6sec
0.5mm
8%
13°C
11°C
  • ●
  • ●
  • ●
16:00
29.4kts
36.6kts
3.1m
8.7sec
0.1mm
0%
13°C
11°C
  • ●
  • ●
  • ●
19:00
27.5kts
31.8kts
2.9m
8.6sec
0.1mm
0%
13°C
12°C
  • ●
  • ●
  • ●
22:00
22.1kts
25.1kts
2.6m
8.5sec
0mm
0%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:51 / Sunset: 19:21 Twilight: 06:10 / 20:02

Monday 21 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
18.9kts
20.5kts
2.3m
9.1sec
0.1mm
0%
13°C
12°C
  • ●
  • ●
  • ●
04:00
13.7kts
15.5kts
2.1m
10.1sec
0mm
1%
13°C
12°C
  • ●
  • ●
  • ●
07:00
6.6kts
7.6kts
1.8m
9.6sec
0mm
1%
13°C
12°C
  • ●
  • ●
  • ●
10:00
3.6kts
3.8kts
1.6m
11.2sec
0mm
2%
13°C
11°C
  • ●
  • ●
  • ●
13:00
12kts
12.7kts
1.5m
11.4sec
0.1mm
2%
13°C
12°C
  • ●
  • ●
  • ●
16:00
16kts
16.8kts
1.5m
8.9sec
0.4mm
12%
13°C
10°C
  • ●
  • ●
  • ●
19:00
14.1kts
14.3kts
1.4m
8.8sec
1.7mm
45%
13°C
11°C
  • ●
  • ●
  • ●
22:00
10.6kts
11.8kts
1.3m
8.7sec
0.2mm
99%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:53 / Sunset: 19:18 Twilight: 06:13 / 19:59

Tuesday 22 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
10kts
15.8kts
1.3m
8.3sec
0.5mm
100%
13°C
13°C
  • ●
  • ●
  • ●
04:00
7.7kts
10.5kts
1.2m
9.1sec
0.1mm
87%
13°C
13°C
  • ●
  • ●
  • ●
07:00
9.8kts
13kts
1.2m
9sec
0.1mm
57%
13°C
13°C
  • ●
  • ●
  • ●
10:00
7.8kts
10.9kts
1.2m
8.9sec
0.1mm
57%
13°C
13°C
  • ●
  • ●
  • ●
13:00
7.1kts
9.7kts
1.3m
9.1sec
0.2mm
71%
13°C
14°C
  • ●
  • ●
  • ●
16:00
9.5kts
14.4kts
1.3m
9.7sec
0.1mm
60%
13°C
13°C
  • ●
  • ●
  • ●
19:00
7.6kts
9.4kts
1.3m
8.3sec
0.1mm
64%
13°C
12°C
  • ●
  • ●
  • ●
22:00
5.2kts
5.9kts
1.3m
10.3sec
0mm
64%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:56 / Sunset: 19:15 Twilight: 06:15 / 19:56

Wednesday 23 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
5.9kts
5.6kts
1.4m
11.3sec
0.8mm
70%
13°C
12°C
  • ●
  • ●
  • ●
04:00
9.9kts
10.8kts
1.4m
8.8sec
0.2mm
94%
13°C
12°C
  • ●
  • ●
  • ●
07:00
7.3kts
8.6kts
1.5m
9.8sec
0.6mm
92%
13°C
13°C
  • ●
  • ●
  • ●
10:00
6.6kts
7.2kts
1.5m
10.3sec
0.2mm
63%
13°C
13°C
  • ●
  • ●
  • ●
13:00
6.3kts
6.7kts
1.5m
13sec
0.2mm
42%
13°C
13°C
  • ●
  • ●
  • ●
16:00
6kts
7.8kts
1.5m
10.9sec
3mm
39%
13°C
13°C
  • ●
  • ●
  • ●
19:00
25kts
27.7kts
1.7m
10.9sec
8mm
61%
13°C
11°C
  • ●
  • ●
  • ●
22:00
24.9kts
27.9kts
2.2m
8.6sec
0.9mm
89%
13°C
10°C
  • ●
  • ●
  • ●

Sunrise: 06:58 / Sunset: 19:12 Twilight: 06:17 / 19:53

Thursday 24 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
23.7kts
27.1kts
2m
8.6sec
1.2mm
74%
13°C
11°C
  • ●
  • ●
  • ●
04:00
16.3kts
18.5kts
1.8m
8.3sec
0mm
1%
12°C
11°C
  • ●
  • ●
  • ●
07:00
12.9kts
13.5kts
1.6m
8.7sec
0mm
2%
12°C
11°C
  • ●
  • ●
  • ●
10:00
8.7kts
8.9kts
1.5m
9.1sec
0mm
1%
12°C
11°C
  • ●
  • ●
  • ●
13:00
3kts
3.4kts
1.4m
10.4sec
0mm
0%
13°C
11°C
  • ●
  • ●
  • ●
16:00
8kts
8.6kts
1.3m
10.2sec
0mm
0%
13°C
11°C
  • ●
  • ●
  • ●
19:00
15.2kts
16.8kts
1.3m
8.5sec
0mm
0%
12°C
11°C
  • ●
  • ●
  • ●
22:00
19.4kts
22.8kts
1.3m
8.3sec
0mm
0%
13°C
11°C
  • ●
  • ●
  • ●

Sunrise: 07:00 / Sunset: 19:09 Twilight: 06:20 / 19:50

Friday 25 September

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
01:00
21.7kts
25.7kts
1.4m
7.7sec
0mm
0%
13°C
12°C
  • ●
  • ●
  • ●

Sunrise: 07:02 / Sunset: 19:06 Twilight: 06:22 / 19:47

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