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

Light rain (total 9mm), mostly falling on Fri afternoon. Icy conditions (max 13°C on Fri morning, min -1°C on Sat morning). Winds increasing (light winds from the SE on Thu morning, gales from the S by Fri morning).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Tue afternoon. Icy conditions (max 7°C on Sun morning, min -3°C on Sun night). Winds decreasing (strong winds from the NW on Mon morning, light winds from the WNW by Mon night).

Days 7–9 Weather Summary

Moderate rain (total 11mm), heaviest on Fri afternoon. Freeze-thaw conditions (max 8°C on Fri afternoon, min -2°C on Wed night). Winds increasing (light winds from the S on Thu night, strong winds from the NNW by Fri night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon morning, min -2°C on Sun morning). Winds increasing (light winds from the W on Sun afternoon, strong winds from the NW by Tue morning).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
11:47AM1.11m
00:27AM0.95m
12:28PM1.13m
1:07AM0.96m
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
Low Tide
6:41PM0.02m
6:41AM0.16m
7:21PM0.01m
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
Wave
height (m) 
direction
period (s) 
0.3
SE
9
0.5
SSE
3
0.9
SSE
4
1.7
SE
7
1.5
ESE
10
1.4
SE
12
1.1
SE
11
0.6
ESE
10
0.8
SSE
5
1
S
6
0.9
SSW
6
0.9
WNW
4
1.2
NNW
4
1
N
4
0.5
NE
7
0.6
SSW
3
1.1
SW
5
0.9
WNW
4
1
NNW
4
1
N
4
1
NE
8
0.6
NE
8
0.6
ENE
7
0.5
N
5
0.2
ENE
11
0.6
SSE
4
0.7
WSW
3
1.2
N
4
1.2
NE
8
0.9
NE
8
0.6
NE
7
0.5
NE
7
0.4
NE
6
0.4
NE
5
0.4
NE
4
0.5
N
4
clear
clear
rain showers
light rain
light rain
part cloud
clear
part cloud
cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
light rain
light rain
part cloud
cloud
part cloud
clear
part cloud
clear
cloud
light rain
mod rain
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
rain shwrs
light rain
light rain
some clouds
clear
some clouds
cloudy
clear
some clouds
some clouds
some clouds
clear
some clouds
light rain
light rain
some clouds
cloudy
some clouds
clear
some clouds
clear
cloudy
light rain
mod rain
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
 km/h
10
SE
25
S
40
SSE
65
SSE
35
WSW
45
W
35
WNW
10
SW
35
SSW
40
WSW
35
WNW
40
WNW
50
NW
40
NW
15
WNW
35
SSW
45
WSW
40
WNW
45
NW
40
NNW
30
N
10
WSW
20
SW
20
W
20
SSE
30
S
30
W
45
NNW
40
N
25
N
15
NW
10
WNW
15
WNW
20
NNW
15
NW
25
WNW
 mm 
1
4
4
1
3
2
9
max°C
4
8
12
13
10
2
1
2
8
7
6
-1
-2
-1
0
4
4
3
2
2
-1
-1
2
3
6
8
7
1
0
0
-2
-1
1
3
2
2
Moonrise
6:03
7:02
7:54
8:38
9:14
9:45
10:10
10:33
10:54
11:15
11:38
12:04
Moonset
2:44
3:31
4:26
5:28
6:35
7:42
8:50
9:58
11:06
12:17
1:31
Sunrise
7:01
7:01
7:01
7:03
7:03
7:03
7:03
7:05
7:05
7:05
7:05
7:05
Sunset
4:10
4:10
4:10
4:12
4:12
4:13
4:14
4:14
4:15
4:15
4:15
4:16
Today's sea temperature in Chatham (inside) is
6.4° C
(Statistics for 18 Dec 1981-2005 – mean: 8.0 max: 10.4 min: 6.1°C)
Issued (local time): 6 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest