Chatham (inside) Sea Conditions and Tide Table

Chatham (inside) 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 07:01 AM and sunset is at 04:10 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 7°C on Sat night, min -3°C on Sun night). Winds decreasing (strong winds from the NW on Sun night, light winds from the WSW by Mon night).

Days 4–6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue afternoon. Icy conditions (max 5°C on Tue afternoon, min 0°C on Wed night). Winds decreasing (near gales from the NNE on Tue night, calm by Thu night).

Days 7–9 Weather Summary

Moderate rain (total 12mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 9°C on Fri afternoon, min -6°C on Sun night). Winds increasing (light winds from the ENE on Sat afternoon, near gales from the NW by Sun afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 2°C on Mon night, min -8°C on Tue night). Winds decreasing (near gales from the WNW on Tue afternoon, light winds from the SW by Thu morning).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
1:08PM1.14m
1:47AM0.97m
1:48PM1.15m
2:26AM0.98m
2:29PM1.16m
3:07AM0.99m
3:11PM1.15m
3:49AM1.01m
3:55PM1.14m
4:32AM1.03m
4:41PM1.12m
5:18AM1.06m
5:32PM1.10m
6:07AM1.09m
6:26PM1.08m
6:58AM1.13m
7:23PM1.06m
7:51AM1.18m
8:22PM1.05m
8:46AM1.23m
9:23PM1.05m
9:42AM1.27m
10:21PM1.06m
Low Tide
7:21AM0.16m
8:00PM0.01m
8:01AM0.16m
8:38PM0.01m
8:41AM0.16m
9:17PM0.01m
9:22AM0.16m
9:57PM0.02m
10:06AM0.16m
10:39PM0.02m
10:52AM0.16m
11:23PM0.03m
11:43AM0.14m
00:09AM0.04m
12:37PM0.12m
1:00AM0.05m
1:36PM0.08m
1:54AM0.06m
2:36PM0.03m
2:50AM0.05m
3:36PM-0.03m
3:47AM0.04m
4:35PM-0.09m
4:43AM0.03m
Wave
height (m) 
direction
period (s) 
1.1
SE
11
0.7
ESE
10
0.9
SSE
5
1
S
6
0.9
NE
6
0.9
NNE
6
1.2
NNW
4
0.9
NNW
4
0.5
NE
7
0.4
E
10
0.8
SSE
4
0.8
NW
3
1.4
NE
8
1.3
ENE
9
0.9
ENE
10
0.9
ENE
10
0.9
ENE
11
0.5
ENE
11
0.6
ENE
11
0.9
SSW
4
1.2
NNW
4
0.6
ENE
8
0.6
E
7
0.6
E
4
0.5
S
3
1
NW
4
1.3
NNW
5
1.2
NNW
4
0.9
NW
4
1
W
4
1
NW
4
1.3
NW
4
1.2
NW
4
1.1
NW
4
0.9
WNW
4
0.5
WNW
3
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
cloud
light rain
mod rain
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
mod rain
clear
part cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
cloudy
light rain
mod rain
light rain
some clouds
some clouds
some clouds
clear
clear
some clouds
light rain
mod rain
clear
some clouds
cloudy
light rain
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
 km/h
25
WNW
15
SW
40
SSW
35
WSW
40
WNW
40
WNW
45
NW
35
NW
15
WNW
25
S
35
S
35
NW
45
N
35
N
10
NNW
25
WSW
25
W
0
SW
30
S
35
SW
50
NW
20
NNE
10
ENE
25
SSE
25
W
45
WNW
55
NW
45
NW
40
WNW
40
WSW
45
WNW
50
WNW
50
WNW
45
WNW
35
WNW
25
WNW
 mm 
3
8
1
4
7
1
max°C
1
2
7
7
4
0
-2
0
1
3
5
3
2
2
2
4
5
4
7
9
6
-1
-2
6
5
3
-3
-4
-2
2
-4
-5
-8
-5
-3
-4
Moonrise
7:54
8:38
9:14
9:45
10:10
10:33
10:54
11:15
11:38
12:04
12:36
1:17
Moonset
4:26
5:28
6:35
7:42
8:50
9:58
11:06
12:17
1:31
2:49
4:09
Sunrise
7:01
7:03
7:03
7:03
7:03
7:05
7:05
7:05
7:05
7:05
7:05
7:05
Sunset
4:10
4:12
4:12
4:13
4:14
4:14
4:15
4:15
4:15
4:16
4:17
4:19
Today's sea temperature in Chatham (inside) is
6.6° C
(Statistics for 20 Dec 1981-2005 – mean: 7.8 max: 9.4 min: 6.1°C)
Issued (local time): 6 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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