Chatham (outer coast) Sea Conditions and Tide Table

Chatham (outer coast) 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 07:00 AM and sunset is at 04:09 PM.

Days 1–3 Weather Summary

Moderate rain (total 11mm), heaviest on Fri afternoon. Icy conditions (max 12°C on Fri morning, min 0°C on Fri night). Winds increasing (light winds from the W on Wed night, gales from the S by Fri morning).

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 8°C on Sun morning, min -4°C on Mon night). Winds increasing (light winds from the NW on Sat afternoon, strong winds from the NW by Mon afternoon).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 5°C on Wed morning, min -4°C on Tue morning). Winds decreasing (strong winds from the WNW on Wed morning, calm by Thu morning).

Days 10–12 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 6°C on Fri morning, min -7°C on Sun night). Mainly strong winds.

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
9:43AM2.06m
10:21PM1.80m
10:24AM2.08m
11:04PM1.81m
11:04AM2.11m
11:44PM1.81m
11:43AM2.12m
00:23AM1.82m
12:22PM2.12m
1:02AM1.82m
1:01PM2.12m
1:41AM1.83m
1:41PM2.10m
2:22AM1.85m
2:24PM2.08m
3:04AM1.88m
3:10PM2.04m
3:49AM1.92m
4:00PM2.00m
4:37AM1.98m
4:54PM1.96m
5:27AM2.06m
5:53PM1.93m
6:21AM2.15m
Low Tide
4:04PM0.11m
4:03AM0.31m
4:45PM0.07m
4:44AM0.29m
5:24PM0.04m
5:25AM0.28m
6:03PM0.02m
6:05AM0.27m
6:42PM0.01m
6:46AM0.26m
7:22PM-0.00m
7:28AM0.25m
8:02PM-0.00m
8:12AM0.25m
8:44PM-0.00m
8:59AM0.23m
9:29PM0.01m
9:49AM0.21m
10:16PM0.03m
10:44AM0.17m
11:07PM0.05m
11:41AM0.10m
00:00AM0.06m
Wave
height (m) 
direction
period (s) 
0.9
SSW
4
1
SSW
4
0.6
SW
6
0.3
ESE
9
0.4
SSE
3
1
SSE
5
1.4
SE
7
1.4
SE
10
1.4
NE
7
1.1
NE
7
0.6
ESE
10
0.7
ESE
9
1
SSW
4
0.7
SSW
5
0.7
N
6
1.1
NW
4
1.1
NNW
4
1
N
4
0.6
N
5
0.4
ENE
6
0.6
SW
3
0.9
WNW
4
0.9
NW
4
0.7
NNW
4
0.3
NE
6
0.2
NNE
5
0.5
E
4
0.7
ESE
4
0.6
SSW
4
0.9
WNW
4
0.8
WNW
4
0.7
NW
4
0.9
NNW
4
1
N
4
1.1
NNW
4
1
NW
4
part cloud
clear
clear
clear
clear
light rain
light rain
rain showers
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
cloud
cloud
snow showers
clear
clear
part cloud
light snow
part cloud
cloud
part cloud
clear
part cloud
cloud
cloud
light snow
cloud
cloud
cloud
some clouds
clear
clear
clear
clear
light rain
light rain
rain shwrs
some clouds
some clouds
some clouds
cloudy
some clouds
clear
clear
some clouds
some clouds
clear
cloudy
cloudy
snow shwrs
clear
clear
some clouds
light snow
some clouds
cloudy
some clouds
clear
some clouds
cloudy
cloudy
light snow
cloudy
cloudy
cloudy
 km/h
40
SW
40
SW
25
WNW
15
S
20
S
40
S
50
S
40
SW
50
W
35
WNW
10
NW
30
SSW
40
WSW
25
W
30
W
40
NW
45
NW
40
NNW
25
NW
20
SW
25
WSW
40
WNW
40
WNW
25
NW
5
SSE
15
ENE
20
SE
30
S
25
W
40
W
35
W
30
WNW
40
NNW
40
NW
45
NW
40
WNW
 mm 
1
2
8
max°C
7
7
4
3
8
11
12
11
2
-1
1
7
8
6
4
-2
-1
-4
-2
1
3
5
5
1
-1
1
4
6
5
2
-2
-3
-3
-5
-5
-6
Moonrise
5:01
6:03
7:02
7:54
8:38
9:14
9:44
10:10
10:33
10:54
11:15
11:38
Moonset
2:05
2:44
3:31
4:26
5:28
6:35
7:42
8:50
9:58
11:06
12:17
Sunrise
7:00
7:01
7:01
7:01
7:03
7:03
7:03
7:03
7:05
7:05
7:05
7:05
Sunset
4:09
4:10
4:10
4:10
4:12
4:12
4:13
4:14
4:14
4:15
4:15
4:15
Today's sea temperature in Chatham (outer coast) is
6.7° C
(Statistics for 17 Dec 1981-2005 – mean: 8.1 max: 10.4 min: 6.8°C)
Issued (local time): 6 am Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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