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 06:39 AM and sunset is at 05:29 PM.

Days 1–3 Weather Summary

Mostly dry. Air temperatures will be below freezing (max -3°C on Thu afternoon, min -14°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 4°C on Sun morning, min -5°C on Sat morning). Wind will be generally light.

Days 7–9 Weather Summary

A dusting of snow. Milder later with heavy rain (total 20mm) on Thu night. Freeze-thaw conditions (max 7°C on Wed morning, min -2°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Sat night. Freeze-thaw conditions (max 7°C on Sun morning, min -12°C on Fri night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
1
Sunday
2
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
5:53PM0.46m
6:22AM0.61m
6:53PM0.44m
7:17AM0.61m
7:57PM0.43m
8:14AM0.63m
8:58PM0.45m
9:09AM0.66m
9:52PM0.49m
10:00AM0.69m
10:39PM0.54m
10:49AM0.73m
11:23PM0.60m
11:36AM0.77m
00:06AM0.67m
12:22PM0.79m
00:49AM0.74m
1:09PM0.80m
1:33AM0.80m
1:56PM0.78m
2:19AM0.83m
2:44PM0.74m
3:07AM0.85m
Low Tide
1:06PM0.11m
1:05AM0.14m
2:03PM0.12m
1:59AM0.16m
2:59PM0.10m
2:55AM0.16m
3:53PM0.08m
3:49AM0.14m
4:43PM0.04m
4:40AM0.11m
5:29PM-0.00m
5:29AM0.06m
6:12PM-0.04m
6:17AM0.01m
6:54PM-0.08m
7:04AM-0.05m
7:35PM-0.10m
7:52AM-0.09m
8:17PM-0.11m
8:41AM-0.12m
9:01PM-0.11m
9:33AM-0.12m
9:46PM-0.09m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
light snow
heavy rain
part cloud
part cloud
clear
part cloud
cloud
light snow
cloud
cloud
cloud
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
clear
some clouds
clear
some clouds
some clouds
light snow
heavy rain
some clouds
some clouds
clear
some clouds
cloudy
light snow
cloudy
cloudy
cloudy
 km/h
20
NW
15
NW
10
NW
10
N
10
NNW
15
NW
20
NW
20
NW
15
NW
10
NW
10
W
5
SSW
15
WSW
10
W
0
ENE
5
ESE
10
SSE
5
SE
10
SSE
10
W
5
WSW
15
WNW
15
WNW
10
WNW
5
S
10
SSE
10
NNE
20
NW
25
NW
20
NW
10
WSW
15
S
10
S
10
SW
15
W
10
NNW
 mm 
20
5
max°C
-5
-4
-9
-4
-3
-6
-3
-3
-9
-1
1
-1
4
4
1
4
4
2
5
6
1
7
6
-1
3
3
2
3
0
-9
-3
-1
4
7
6
1
Moonrise
12:53
1:57
2:59
3:56
4:44
5:25
5:58
6:26
6:51
7:14
7:38
Moonset
9:30
10:00
10:38
11:26
12:25
1:33
2:48
4:05
5:23
6:40
7:58
9:16
Sunrise
6:39
6:37
6:37
6:35
6:33
6:31
6:31
6:28
6:28
6:26
6:24
6:22
Sunset
5:29
5:30
5:30
5:31
5:32
5:35
5:36
5:37
5:37
5:38
5:40
5:42
Today's sea temperature in Portland is 3.1 °C (Statistics for 19 Feb 1981-2005 – mean: 3.9 max: 5.5 min: 2.4°C)
Issued (local time): 12 pm Wednesday 19 Feb 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest