Portland Sea Conditions and Tide Table

Portland Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 05:16 AM and sunset is at 08:27 PM.

Days 1–3 Weather Summary

Moderate rain (total 10mm), heaviest on Sat night. Very warm air temperatures (max 33°C on Thu afternoon, min 18°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 3mm), mostly falling on Sun morning. Very warm air temperatures (max 37°C on Tue afternoon, min 20°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 32°C on Wed afternoon, min 15°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Mon night. Warm (max 32°C on Sat morning, min 17°C on Sun night). Wind will be generally light.

Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
7:59AM0.66m
8:37PM0.80m
9:02AM0.65m
9:33PM0.86m
10:03AM0.64m
10:28PM0.91m
11:02AM0.64m
11:22PM0.95m
11:58AM0.65m
00:15AM0.98m
12:52PM0.66m
1:07AM0.98m
1:45PM0.68m
1:59AM0.96m
2:37PM0.69m
2:51AM0.92m
3:29PM0.70m
3:42AM0.87m
4:22PM0.70m
4:35AM0.80m
5:15PM0.70m
5:28AM0.73m
6:10PM0.71m
Low Tide
3:12PM0.10m
4:02AM0.10m
4:04PM0.10m
5:00AM0.05m
4:56PM0.09m
5:56AM0.01m
5:48PM0.07m
6:50AM-0.02m
6:41PM0.05m
7:42AM-0.05m
7:33PM0.05m
8:33AM-0.05m
8:27PM0.05m
9:22AM-0.05m
9:21PM0.05m
10:12AM-0.02m
10:16PM0.07m
11:01AM0.01m
11:13PM0.10m
11:51AM0.04m
00:11AM0.13m
12:41PM0.08m
1:09AM0.15m
Wave
height (m) 
direction
period (s) 
part cloud
clear
thunderstorm
clear
clear
part cloud
clear
cloud
rain showers
rain showers
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
rain showers
some clouds
clear
risk tstorm
clear
clear
some clouds
clear
cloudy
rain shwrs
rain shwrs
risk tstorm
risk tstorm
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
clear
rain shwrs
 km/h
15
WSW
20
SSW
15
WSW
25
WNW
20
W
5
NNW
10
NW
10
W
5
N
10
SW
5
NW
0
NW
5
NW
5
SSE
5
SW
15
NW
20
NW
10
N
10
N
0
NW
5
NNE
10
E
15
SSE
10
S
20
SSW
15
SW
10
SW
20
W
15
WNW
10
NW
5
NE
15
S
5
SSE
15
SSE
15
SSE
0
SW
 mm 
2
8
1
1
1
5
max°C
30
33
24
25
28
24
27
30
27
22
31
29
33
35
25
34
37
31
30
32
25
22
26
17
25
27
25
32
32
26
26
29
21
23
25
21
Moonrise
1:03
1:26
1:52
2:23
3:03
3:53
4:56
6:08
7:24
8:38
9:48
10:54
Moonset
1:55
3:10
4:29
5:50
7:09
8:20
9:20
10:06
10:41
11:08
11:32
11:52
Sunrise
5:16
5:16
5:16
5:16
5:16
5:16
5:16
5:16
5:18
5:18
5:18
5:18
Sunset
8:27
8:27
8:27
8:28
8:28
8:28
8:28
8:28
8:28
8:28
8:28
8:28
Today's sea temperature in Portland is 16.8 °C (Statistics for 19 Jun 1981-2005 – mean: 17.5 max: 19.0 min: 15.7°C)
Issued (local time): 1 am Thursday 19 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest