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Great South Bay Weather Forecast

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

Tuesday 30 June (Today)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
6.8kts
8.2kts
0.6m
9.4sec
-1mm
-1%
21°C
22°C
  • ●
  • ●
  • ●
05:00
7.2kts
8.7kts
0.6m
9.3sec
0mm
0%
21°C
22°C
  • ●
  • ●
  • ●
08:00
8.3kts
10.7kts
0.6m
9.2sec
0mm
0%
22°C
22°C
  • ●
  • ●
  • ●
11:00
8.9kts
11.9kts
0.6m
9.1sec
0mm
0%
23°C
23°C
  • ●
  • ●
  • ●
14:00
11.4kts
15.2kts
0.7m
9.1sec
0mm
0%
23°C
24°C
  • ●
  • ●
  • ●
17:00
16.5kts
23.8kts
0.8m
5.3sec
0mm
0%
23°C
24°C
  • ●
  • ●
  • ●
20:00
17.9kts
27.1kts
1m
4.3sec
0mm
0%
22°C
23°C
  • ●
  • ●
  • ●
23:00
17.9kts
28.3kts
1.2m
4.9sec
0mm
0%
22°C
23°C
  • ●
  • ●
  • ●

Sunrise: 05:23 / Sunset: 20:29 Twilight: 04:50 / 21:02

°C

Wednesday 1 July (Tomorrow)

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
14.2kts
24.4kts
1.3m
5.5sec
0.1mm
0%
21°C
22°C
  • ●
  • ●
  • ●
05:00
13.6kts
23.4kts
1.3m
5.5sec
0.1mm
0%
21°C
22°C
  • ●
  • ●
  • ●
08:00
14kts
22.2kts
1.3m
5.3sec
0.4mm
0%
22°C
22°C
  • ●
  • ●
  • ●
11:00
14.7kts
20.4kts
1.4m
5.2sec
0mm
0%
23°C
24°C
  • ●
  • ●
  • ●
14:00
16.7kts
23.9kts
1.5m
5.4sec
0mm
0%
23°C
25°C
  • ●
  • ●
  • ●
17:00
20.6kts
30.1kts
1.5m
5.7sec
0mm
0%
23°C
25°C
  • ●
  • ●
  • ●
20:00
22.1kts
33.3kts
1.8m
6.2sec
0mm
0%
22°C
24°C
  • ●
  • ●
  • ●
23:00
19.4kts
29.8kts
2m
6.5sec
0mm
0%
22°C
23°C
  • ●
  • ●
  • ●

Sunrise: 05:23 / Sunset: 20:29 Twilight: 04:50 / 21:02

Thursday 2 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
17.6kts
25.6kts
2.1m
6.7sec
0.4mm
0%
22°C
23°C
  • ●
  • ●
  • ●
05:00
15.6kts
22.4kts
1.9m
6.7sec
0.8mm
0%
22°C
22°C
  • ●
  • ●
  • ●
08:00
13.1kts
17.8kts
1.7m
6.5sec
0.8mm
0%
22°C
23°C
  • ●
  • ●
  • ●
11:00
10kts
13.5kts
1.4m
6.3sec
0mm
0%
23°C
25°C
  • ●
  • ●
  • ●
14:00
11.5kts
16.3kts
1.3m
6.1sec
0mm
0%
24°C
27°C
  • ●
  • ●
  • ●
17:00
13.9kts
22.5kts
1.2m
5.9sec
0mm
0%
24°C
27°C
  • ●
  • ●
  • ●
20:00
15.4kts
23.6kts
1.2m
5.7sec
0mm
0%
23°C
26°C
  • ●
  • ●
  • ●
23:00
9.3kts
11.8kts
1.3m
5.9sec
0mm
0%
23°C
26°C
  • ●
  • ●
  • ●

Sunrise: 05:24 / Sunset: 20:29 Twilight: 04:51 / 21:02

Friday 3 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
6.3kts
7.2kts
1.2m
6sec
0mm
0%
22°C
26°C
  • ●
  • ●
  • ●
05:00
7.2kts
8.5kts
1.1m
6sec
0.1mm
0%
22°C
25°C
  • ●
  • ●
  • ●
08:00
7.5kts
8.7kts
1m
5.9sec
0.1mm
0%
23°C
25°C
  • ●
  • ●
  • ●
11:00
10.7kts
12.4kts
0.9m
5.8sec
0mm
0%
24°C
27°C
  • ●
  • ●
  • ●
14:00
12.6kts
16.4kts
0.8m
5.6sec
0mm
0%
24°C
28°C
  • ●
  • ●
  • ●
17:00
12.6kts
21.5kts
1m
5.2sec
0mm
0%
24°C
29°C
  • ●
  • ●
  • ●
20:00
11.2kts
18.7kts
1.2m
4.9sec
0mm
0%
24°C
27°C
  • ●
  • ●
  • ●
23:00
10.4kts
15.8kts
0.9m
5sec
0.3mm
0%
23°C
26°C
  • ●
  • ●
  • ●

Sunrise: 05:24 / Sunset: 20:28 Twilight: 04:51 / 21:02

Saturday 4 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
6.1kts
7.5kts
0.8m
5.1sec
0.4mm
0%
22°C
25°C
  • ●
  • ●
  • ●
05:00
6.3kts
6.9kts
0.8m
5.1sec
0.1mm
0%
22°C
24°C
  • ●
  • ●
  • ●
08:00
7.6kts
8.6kts
0.7m
5.1sec
0.5mm
0%
22°C
24°C
  • ●
  • ●
  • ●
11:00
9.6kts
12.3kts
0.7m
5.2sec
0.2mm
0%
23°C
25°C
  • ●
  • ●
  • ●
14:00
9.1kts
12.9kts
0.8m
5.3sec
0.2mm
0%
24°C
27°C
  • ●
  • ●
  • ●
17:00
13.2kts
26.7kts
0.8m
5.1sec
0.5mm
0%
23°C
26°C
  • ●
  • ●
  • ●
20:00
6.9kts
16.4kts
1m
4.1sec
6.3mm
3%
23°C
23°C
  • ●
  • ●
  • ●
23:00
7.8kts
11.7kts
0.7m
4.8sec
1.1mm
2%
22°C
23°C
  • ●
  • ●
  • ●

Sunrise: 05:25 / Sunset: 20:28 Twilight: 04:52 / 21:01

Sunday 5 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
10.6kts
17kts
0.8m
5.4sec
2.2mm
2%
22°C
23°C
  • ●
  • ●
  • ●
05:00
7.6kts
11.2kts
0.9m
5.6sec
0.1mm
0%
22°C
23°C
  • ●
  • ●
  • ●
08:00
8.1kts
11.1kts
0.8m
5.6sec
0.7mm
0%
22°C
23°C
  • ●
  • ●
  • ●
11:00
6.3kts
7.2kts
0.8m
5.5sec
0.2mm
0%
23°C
24°C
  • ●
  • ●
  • ●
14:00
7.5kts
8.7kts
0.8m
5.4sec
0.2mm
0%
23°C
24°C
  • ●
  • ●
  • ●
17:00
7.3kts
9.2kts
0.8m
5.5sec
0.8mm
0%
23°C
24°C
  • ●
  • ●
  • ●
20:00
4.9kts
5.6kts
0.8m
5.7sec
1.4mm
0%
23°C
24°C
  • ●
  • ●
  • ●
23:00
7.4kts
9.4kts
0.8m
5.9sec
0.2mm
0%
23°C
24°C
  • ●
  • ●
  • ●

Sunrise: 05:26 / Sunset: 20:28 Twilight: 04:53 / 21:01

Monday 6 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
5kts
6.3kts
0.8m
5.9sec
0.5mm
0%
22°C
23°C
  • ●
  • ●
  • ●
05:00
5.5kts
7kts
0.8m
5.9sec
1.6mm
1%
22°C
22°C
  • ●
  • ●
  • ●
08:00
3.6kts
5.1kts
0.8m
5.9sec
1.6mm
1%
22°C
23°C
  • ●
  • ●
  • ●
11:00
5.8kts
6.8kts
0.8m
6sec
0mm
0%
23°C
23°C
  • ●
  • ●
  • ●
14:00
4.4kts
5.9kts
0.9m
6.4sec
0mm
0%
24°C
24°C
  • ●
  • ●
  • ●
17:00
7.4kts
9.8kts
0.9m
6.5sec
0mm
0%
25°C
25°C
  • ●
  • ●
  • ●
20:00
11.1kts
15.8kts
0.9m
6.4sec
0mm
0%
24°C
24°C
  • ●
  • ●
  • ●
23:00
7.6kts
11kts
0.9m
6.4sec
0mm
0%
23°C
24°C
  • ●
  • ●
  • ●

Sunrise: 05:26 / Sunset: 20:28 Twilight: 04:53 / 21:01

Tuesday 7 July

Wind Gust Swell Period Rain Cloud Temp Chill [Wind rating]
02:00
7.9kts
11.8kts
0.8m
6.4sec
0.1mm
0%
22°C
23°C
  • ●
  • ●
  • ●
05:00
6.8kts
10.4kts
0.8m
6.2sec
0.7mm
0%
22°C
23°C
  • ●
  • ●
  • ●
08:00
3.4kts
5.1kts
0.8m
6.1sec
0.8mm
0%
22°C
23°C
  • ●
  • ●
  • ●
11:00
1.1kts
3.6kts
0.7m
6sec
0.2mm
0%
24°C
24°C
  • ●
  • ●
  • ●
14:00
6.8kts
7.5kts
0.7m
6sec
0.7mm
0%
25°C
25°C
  • ●
  • ●
  • ●

Sunrise: 05:27 / Sunset: 20:27 Twilight: 04:54 / 21:00

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