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 07:03 AM and sunset is at 04:13 PM.

Days 1–3 Weather Summary

Light rain (total 8mm), mostly falling on Tue night. Icy conditions (max 4°C on Tue night, min -5°C on Thu night). Winds decreasing (near gales from the NW on Wed morning, light winds from the NNW by Wed night).

Days 4–6 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Sun afternoon. Icy conditions (max 7°C on Sun night, min -5°C on Fri morning). Winds increasing (light winds from the W on Sat night, near gales from the W by Sun night).

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max 0°C on Wed afternoon, min -5°C on Mon night). Winds decreasing (strong winds from the W on Mon night, light winds from the WSW by Wed night).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 4°C on Thu afternoon, min -11°C on Thu night). Winds decreasing (strong winds from the W on Thu night, moderate winds from the WNW by Sat night).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
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
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
6:53PM1.92m
7:16AM2.24m
7:55PM1.94m
8:13AM2.34m
8:54PM1.95m
9:08AM2.40m
9:54PM2.00m
10:05AM2.46m
10:51PM2.05m
11:01AM2.50m
11:45PM2.09m
Low Tide
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
12:41PM0.02m
00:56AM0.06m
1:41PM-0.08m
1:53AM0.04m
2:41PM-0.19m
2:49AM0.03m
3:37PM-0.26m
3:46AM-0.02m
4:33PM-0.33m
4:41AM-0.06m
5:27PM-0.37m
5:36AM-0.09m
Wave
height (m) 
direction
period (s) 
0.2
E
10
0.2
E
10
0.4
SE
4
1.2
NNW
4
1.4
NE
7
1
ENE
9
0.9
E
9
0.9
E
10
1.3
NE
8
1.2
NE
8
0.9
NE
8
0.5
NE
7
0.8
ENE
12
0.7
ENE
12
0.6
ENE
12
0.5
ENE
12
0.6
ENE
12
0.8
S
4
1
WNW
4
1
W
4
1.1
WNW
4
0.9
WNW
4
0.8
WNW
4
0.8
WNW
4
0.7
WNW
3
0.5
W
3
0.2
N
4
0.3
SSW
2
0.9
SSW
4
1.1
NW
4
1.1
W
4
1.1
W
4
1.1
W
4
1
WNW
4
1
WNW
4
0.6
NW
3
cloud
light rain
light rain
cloud
light rain
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
cloud
light snow
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
cloud
light rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloudy
light rain
light rain
cloudy
light rain
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
cloudy
light snow
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
clear
cloudy
some clouds
some clouds
cloudy
light rain
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
 km/h
10
WSW
10
SE
25
W
55
NW
45
NNE
10
NNW
35
WSW
30
WNW
45
NNW
40
N
25
N
15
NNE
25
NNE
25
NNE
15
N
15
S
30
S
35
W
45
W
45
W
45
WNW
40
WNW
35
WNW
35
WNW
30
W
20
W
10
W
25
SSW
40
SW
45
WNW
45
W
45
W
45
W
45
W
45
WNW
25
WNW
 mm 
2
5
1
3
2
2
max°C
3
3
4
4
3
2
4
4
-1
-5
-3
-2
0
-1
-2
1
5
7
-3
-3
-4
-2
-1
-3
-1
0
0
3
4
-2
-9
-9
-8
-6
-6
-7
Moonrise
9:44
10:10
10:33
10:54
11:15
11:38
12:04
12:36
1:17
2:11
3:18
4:34
Moonset
7:42
8:50
9:58
11:06
12:17
1:31
2:48
4:09
5:28
6:39
7:38
Sunrise
7:03
7:03
7:05
7:05
7:05
7:05
7:05
7:05
7:05
7:05
7:05
7:05
Sunset
4:13
4:14
4:14
4:15
4:15
4:15
4:16
4:17
4:19
4:20
4:21
4:21
Today's sea temperature in Chatham (outer coast) is
6.9° C
(Statistics for 23 Dec 1981-2005 – mean: 7.5 max: 9.4 min: 6.1°C)
Issued (local time): 6 am Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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