To customise your experience, sign in or sign up:

Remember me

Search for a spot name or postcode..

Portland Harbour Weather Forecast

GFS 50km atmospheric forecast data for Portland Harbour.

Saturday 5 September (Today)

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
13.5kts
16.7kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●
04:00
11.6kts
14.5kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●
07:00
9kts
11.1kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●
10:00
7.3kts
8.1kts
0mm
0%
18°C
16°C
  • ●
  • ●
  • ●
13:00
8.2kts
8.5kts
0mm
0%
19°C
17°C
  • ●
  • ●
  • ●
16:00
9kts
8.6kts
0mm
0%
19°C
17°C
  • ●
  • ●
  • ●
19:00
6.3kts
6.3kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
22:00
1.6kts
1.5kts
0mm
0%
17°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:28 / Sunset: 19:48 Twilight: 05:54 / 20:22

more >>

Today's tide data

Time Height (m)
05:12:34 L +0.84
08:29:04 H +1.13
08:59:04 L +1.13
12:48:19 H +1.6
17:50:46 L +0.95
20:31:23 H +1.11
22:06:46 L +1.07

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

Sunday 6 September (Tomorrow)

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
3.9kts
4.3kts
0mm
0%
17°C
16°C
  • ●
  • ●
  • ●
04:00
7.1kts
7.7kts
0mm
0%
17°C
16°C
  • ●
  • ●
  • ●
07:00
10.2kts
11.8kts
0mm
0%
17°C
17°C
  • ●
  • ●
  • ●
10:00
11.8kts
14.5kts
0mm
0%
19°C
18°C
  • ●
  • ●
  • ●
13:00
10.1kts
12.3kts
0mm
0%
20°C
19°C
  • ●
  • ●
  • ●
16:00
8.5kts
10.6kts
0mm
0%
20°C
19°C
  • ●
  • ●
  • ●
19:00
7.1kts
8.6kts
0.2mm
0%
18°C
19°C
  • ●
  • ●
  • ●
22:00
5.7kts
6.2kts
0mm
0%
18°C
18°C
  • ●
  • ●
  • ●

Sunrise: 06:30 / Sunset: 19:46 Twilight: 05:56 / 20:19

Monday 7 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
9kts
13.4kts
0mm
0%
18°C
18°C
  • ●
  • ●
  • ●
04:00
11.1kts
17.7kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
07:00
12.3kts
18.1kts
0mm
0%
17°C
17°C
  • ●
  • ●
  • ●
10:00
16kts
19.6kts
0mm
3%
18°C
17°C
  • ●
  • ●
  • ●
13:00
12.6kts
16.1kts
0mm
3%
19°C
18°C
  • ●
  • ●
  • ●
16:00
17.9kts
17.7kts
0mm
0%
19°C
18°C
  • ●
  • ●
  • ●
19:00
18.2kts
19.2kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
22:00
14.4kts
17.3kts
0mm
0%
17°C
17°C
  • ●
  • ●
  • ●

Sunrise: 06:31 / Sunset: 19:43 Twilight: 05:58 / 20:17

Tuesday 8 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
17kts
21.4kts
0.3mm
2%
18°C
16°C
  • ●
  • ●
  • ●
04:00
16.6kts
19.5kts
1.3mm
12%
17°C
15°C
  • ●
  • ●
  • ●
07:00
13.5kts
17.5kts
1.7mm
14%
17°C
15°C
  • ●
  • ●
  • ●
10:00
13.8kts
15.9kts
0mm
0%
18°C
16°C
  • ●
  • ●
  • ●
13:00
15.2kts
17.9kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
16:00
17.2kts
21kts
0.1mm
0%
18°C
17°C
  • ●
  • ●
  • ●
19:00
17.5kts
20.4kts
0.3mm
0%
18°C
17°C
  • ●
  • ●
  • ●
22:00
17.4kts
21.2kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●

Sunrise: 06:33 / Sunset: 19:41 Twilight: 05:59 / 20:15

Wednesday 9 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
15.8kts
19.6kts
0.1mm
0%
17°C
15°C
  • ●
  • ●
  • ●
04:00
15.9kts
20.3kts
0mm
0%
17°C
14°C
  • ●
  • ●
  • ●
07:00
15kts
18.9kts
0mm
0%
17°C
14°C
  • ●
  • ●
  • ●
10:00
15.6kts
18.8kts
0.1mm
0%
18°C
15°C
  • ●
  • ●
  • ●
13:00
14.2kts
17.4kts
0.1mm
0%
18°C
16°C
  • ●
  • ●
  • ●
16:00
13.1kts
17.9kts
0mm
1%
18°C
17°C
  • ●
  • ●
  • ●
19:00
14.4kts
16.9kts
0.1mm
1%
18°C
17°C
  • ●
  • ●
  • ●
22:00
12.9kts
15.1kts
0.1mm
3%
17°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:34 / Sunset: 19:39 Twilight: 06:01 / 20:12

Thursday 10 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
14kts
17.5kts
0.2mm
2%
17°C
16°C
  • ●
  • ●
  • ●
04:00
16.9kts
21.1kts
0.1mm
0%
17°C
16°C
  • ●
  • ●
  • ●
07:00
17.2kts
21.5kts
0.2mm
13%
18°C
16°C
  • ●
  • ●
  • ●
10:00
19.4kts
23.2kts
0.1mm
91%
18°C
17°C
  • ●
  • ●
  • ●
13:00
18.6kts
22.4kts
0.4mm
73%
19°C
18°C
  • ●
  • ●
  • ●
16:00
18.7kts
25.6kts
0.1mm
5%
19°C
19°C
  • ●
  • ●
  • ●
19:00
16.9kts
23.3kts
0.1mm
3%
18°C
18°C
  • ●
  • ●
  • ●
22:00
14.8kts
19kts
0mm
0%
17°C
17°C
  • ●
  • ●
  • ●

Sunrise: 06:36 / Sunset: 19:37 Twilight: 06:02 / 20:10

Friday 11 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
12.8kts
19kts
0mm
0%
17°C
17°C
  • ●
  • ●
  • ●
04:00
13.2kts
17.9kts
0mm
2%
17°C
17°C
  • ●
  • ●
  • ●
07:00
15.1kts
20.1kts
0mm
12%
18°C
17°C
  • ●
  • ●
  • ●
10:00
14.2kts
18.5kts
0.1mm
85%
18°C
18°C
  • ●
  • ●
  • ●
13:00
15.6kts
19.7kts
0.1mm
43%
19°C
19°C
  • ●
  • ●
  • ●
16:00
16.1kts
20.5kts
0mm
0%
19°C
19°C
  • ●
  • ●
  • ●
19:00
16.1kts
17.9kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
22:00
12.7kts
14.8kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●

Sunrise: 06:37 / Sunset: 19:35 Twilight: 06:04 / 20:08

Saturday 12 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
11kts
12.9kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●
04:00
10.3kts
12.3kts
0mm
0%
17°C
15°C
  • ●
  • ●
  • ●
07:00
4.3kts
5kts
2.1mm
2%
17°C
14°C
  • ●
  • ●
  • ●
10:00
4.7kts
5.9kts
4.3mm
14%
17°C
14°C
  • ●
  • ●
  • ●
13:00
13.2kts
15.1kts
10.9mm
57%
17°C
15°C
  • ●
  • ●
  • ●
16:00
9.1kts
10.1kts
12.7mm
96%
18°C
16°C
  • ●
  • ●
  • ●
19:00
3.9kts
7.6kts
13.4mm
87%
17°C
17°C
  • ●
  • ●
  • ●
22:00
11kts
12.8kts
0.2mm
71%
17°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:39 / Sunset: 19:32 Twilight: 06:06 / 20:06

Sunday 13 September

Wind Gust Rain Cloud Temp Chill [Wind rating]
01:00
15.1kts
16.9kts
0.4mm
72%
17°C
16°C
  • ●
  • ●
  • ●
04:00
17.8kts
20.5kts
0.1mm
81%
17°C
16°C
  • ●
  • ●
  • ●
07:00
18.5kts
22.8kts
0.1mm
70%
17°C
14°C
  • ●
  • ●
  • ●
10:00
19.6kts
23.9kts
0mm
17%
18°C
16°C
  • ●
  • ●
  • ●
13:00
19.4kts
22.2kts
0mm
11%
19°C
17°C
  • ●
  • ●
  • ●
16:00
17kts
20.4kts
0mm
0%
18°C
18°C
  • ●
  • ●
  • ●
19:00
12.8kts
17.8kts
0mm
0%
18°C
17°C
  • ●
  • ●
  • ●
22:00
11.4kts
17.7kts
0mm
0%
17°C
16°C
  • ●
  • ●
  • ●

Sunrise: 06:40 / Sunset: 19:30 Twilight: 06:07 / 20:03

© Bigsalty Weather 2026 About Bigsalty · Contact us · Advertise with us · Terms & Conditions · Privacy Policy (GDPR)