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Notice 21-10-2026. Over the coming 3 weeks we will be migrating to a newer version of Bigsalty. Whilst this happens we have removed login / user capabilities and some current weather functionality.

Portland Harbour Weather Forecast

GFS 50km atmospheric forecast data for Portland Harbour.

Sunday 25 October (Today)

Wind Gust Rain Cloud Temp Chill [Wind rating]
12:00
29.8kts
36.5kts
-1mm
-1%
16°C
13°C
  • ●
  • ●
  • ●
15:00
26kts
31kts
0mm
0%
16°C
13°C
  • ●
  • ●
  • ●
18:00
20.4kts
24.9kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
21:00
20.4kts
24.7kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:47 / Sunset: 17:00 Twilight: 06:13 / 17:33

more >>

Today's tide data

Time Height (m)
01:30:53 L +0.52
05:45:46 H +2.25
10:37:08 L +0.64
12:09:41 H +0.79
13:55:43 L +0.56
18:01:08 H +2.34
23:01:16 L +0.48

Tide chart for Weymouth

Bigsalty Tide Charts

Tide times vary with distance to report location; all times incorporate BST; for more tide information click here

Monday 26 October (Tomorrow)

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
18.1kts
21.2kts
0mm
1%
15°C
13°C
  • ●
  • ●
  • ●
03:00
16.3kts
19.9kts
0.1mm
1%
15°C
13°C
  • ●
  • ●
  • ●
06:00
21.6kts
24.2kts
0.7mm
12%
16°C
13°C
  • ●
  • ●
  • ●
09:00
24.4kts
30.9kts
1.9mm
95%
16°C
14°C
  • ●
  • ●
  • ●
12:00
27.6kts
35.9kts
2.8mm
98%
16°C
16°C
  • ●
  • ●
  • ●
15:00
24.8kts
33.8kts
0.2mm
83%
16°C
16°C
  • ●
  • ●
  • ●
18:00
23.8kts
32.5kts
0.4mm
84%
16°C
16°C
  • ●
  • ●
  • ●
21:00
26.4kts
38.3kts
0mm
23%
16°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:49 / Sunset: 16:58 Twilight: 06:15 / 17:32

Tuesday 27 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
29.3kts
40.7kts
0.1mm
42%
16°C
17°C
  • ●
  • ●
  • ●
03:00
31kts
41.8kts
0.1mm
11%
16°C
17°C
  • ●
  • ●
  • ●
06:00
29.1kts
39.1kts
3.2mm
40%
16°C
15°C
  • ●
  • ●
  • ●
09:00
21.7kts
25.9kts
2.6mm
71%
16°C
14°C
  • ●
  • ●
  • ●
12:00
22.1kts
26.7kts
3mm
54%
16°C
13°C
  • ●
  • ●
  • ●
15:00
21.1kts
24.2kts
0.1mm
0%
15°C
13°C
  • ●
  • ●
  • ●
18:00
17.9kts
22.4kts
0.2mm
0%
15°C
12°C
  • ●
  • ●
  • ●
21:00
17.7kts
21.7kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●

Sunrise: 06:50 / Sunset: 16:56 Twilight: 06:17 / 17:30

Wednesday 28 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
16.5kts
20.2kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
03:00
15.1kts
17.9kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
06:00
12.9kts
15.7kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
09:00
11.3kts
13.9kts
0.1mm
0%
15°C
13°C
  • ●
  • ●
  • ●
12:00
10.5kts
11.3kts
0.2mm
0%
16°C
14°C
  • ●
  • ●
  • ●
15:00
10.1kts
10.4kts
0mm
0%
16°C
14°C
  • ●
  • ●
  • ●
18:00
6.4kts
6.5kts
0mm
1%
15°C
13°C
  • ●
  • ●
  • ●
21:00
5.3kts
5.6kts
0mm
4%
15°C
13°C
  • ●
  • ●
  • ●

Sunrise: 06:52 / Sunset: 16:54 Twilight: 06:18 / 17:28

Thursday 29 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
6.5kts
7.4kts
0.1mm
6%
15°C
13°C
  • ●
  • ●
  • ●
03:00
11.1kts
12kts
0.1mm
12%
15°C
13°C
  • ●
  • ●
  • ●
06:00
12.1kts
12.8kts
0.1mm
10%
15°C
13°C
  • ●
  • ●
  • ●
09:00
13.4kts
16.1kts
0mm
0%
15°C
13°C
  • ●
  • ●
  • ●
12:00
15.3kts
17kts
0mm
0%
16°C
13°C
  • ●
  • ●
  • ●
15:00
14.8kts
16.7kts
0mm
0%
15°C
14°C
  • ●
  • ●
  • ●
18:00
15.6kts
18.5kts
0mm
0%
15°C
13°C
  • ●
  • ●
  • ●
21:00
14.8kts
16.8kts
0mm
0%
15°C
14°C
  • ●
  • ●
  • ●

Sunrise: 06:54 / Sunset: 16:52 Twilight: 06:20 / 17:26

Friday 30 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
14.1kts
16.1kts
0mm
0%
15°C
14°C
  • ●
  • ●
  • ●
03:00
15.2kts
18.1kts
0mm
0%
15°C
14°C
  • ●
  • ●
  • ●
06:00
14.3kts
17.3kts
0mm
0%
15°C
14°C
  • ●
  • ●
  • ●
09:00
15.6kts
18.6kts
0mm
0%
16°C
15°C
  • ●
  • ●
  • ●
12:00
15.8kts
19.6kts
0mm
8%
16°C
15°C
  • ●
  • ●
  • ●
15:00
13.9kts
19.6kts
0mm
46%
16°C
15°C
  • ●
  • ●
  • ●
18:00
14.4kts
20.6kts
0mm
50%
16°C
16°C
  • ●
  • ●
  • ●
21:00
15.2kts
23.6kts
0.4mm
87%
16°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:55 / Sunset: 16:50 Twilight: 06:21 / 17:25

Saturday 31 October

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
14.5kts
21.1kts
0.5mm
90%
16°C
16°C
  • ●
  • ●
  • ●
03:00
10.9kts
14.2kts
0.4mm
91%
16°C
15°C
  • ●
  • ●
  • ●
06:00
9.2kts
10.8kts
1.1mm
78%
16°C
14°C
  • ●
  • ●
  • ●
09:00
7.7kts
9kts
1.8mm
78%
16°C
14°C
  • ●
  • ●
  • ●
12:00
11kts
13.4kts
3.6mm
85%
15°C
13°C
  • ●
  • ●
  • ●
15:00
11.1kts
16.8kts
1.9mm
42%
15°C
13°C
  • ●
  • ●
  • ●
18:00
13.7kts
19kts
2mm
23%
15°C
13°C
  • ●
  • ●
  • ●
21:00
15.4kts
20.9kts
0mm
0%
14°C
11°C
  • ●
  • ●
  • ●

Sunrise: 06:57 / Sunset: 16:49 Twilight: 06:23 / 17:23

Sunday 1 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
12.8kts
18.9kts
0mm
0%
14°C
11°C
  • ●
  • ●
  • ●
03:00
9.9kts
14kts
0mm
0%
14°C
10°C
  • ●
  • ●
  • ●
06:00
8.1kts
10.1kts
0mm
0%
14°C
10°C
  • ●
  • ●
  • ●
09:00
8.5kts
10.6kts
0mm
0%
15°C
10°C
  • ●
  • ●
  • ●
12:00
8.4kts
9.6kts
0mm
0%
15°C
11°C
  • ●
  • ●
  • ●
15:00
7.5kts
8kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
18:00
8kts
8kts
0mm
0%
14°C
11°C
  • ●
  • ●
  • ●
21:00
6.8kts
8.1kts
0mm
0%
14°C
10°C
  • ●
  • ●
  • ●

Sunrise: 06:59 / Sunset: 16:47 Twilight: 06:25 / 17:21

Monday 2 November

Wind Gust Rain Cloud Temp Chill [Wind rating]
00:00
7kts
7.7kts
0mm
0%
14°C
7°C
  • ●
  • ●
  • ●
03:00
7.6kts
8.1kts
0mm
0%
14°C
7°C
  • ●
  • ●
  • ●
06:00
7.1kts
7.7kts
0mm
0%
14°C
7°C
  • ●
  • ●
  • ●
09:00
6kts
6.7kts
0mm
0%
14°C
8°C
  • ●
  • ●
  • ●
12:00
4.8kts
5.6kts
0mm
0%
15°C
11°C
  • ●
  • ●
  • ●
15:00
4.9kts
6.8kts
0mm
0%
15°C
12°C
  • ●
  • ●
  • ●
18:00
8.5kts
9.6kts
0mm
0%
14°C
11°C
  • ●
  • ●
  • ●
21:00
9.7kts
11.7kts
0mm
0%
14°C
10°C
  • ●
  • ●
  • ●

Sunrise: 07:01 / Sunset: 16:45 Twilight: 06:26 / 17:20

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