Dee Why Sea Conditions and Tide Table

Dee Why 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 — and sunset is at 08:02 PM.

Days 1–4 Weather Summary

Mostly dry. Very warm air temperatures (max 34°C on Sun afternoon, min 21°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Warm air temperatures (max 26°C on Sun night, min 19°C on Mon night). Mainly fresh winds.

Days 8–10 Weather Summary

Some drizzle, heaviest during Thu morning. Warm (max 21°C on Wed night, min 17°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Warm (max 22°C on Tue afternoon, min 16°C on Mon night). Winds increasing (light winds from the N on Mon night, fresh winds from the NE by Tue night).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
AM
PM
Wave Height Map
High Tide
8:26PM1.00m
8:24AM1.54m
9:06PM1.01m
9:02AM1.56m
9:46PM1.01m
9:39AM1.57m
10:25PM1.02m
10:17AM1.57m
11:05PM1.02m
10:54AM1.55m
11:47PM1.03m
11:33AM1.51m
00:32AM1.06m
12:14PM1.45m
1:22AM1.10m
12:59PM1.37m
2:15AM1.16m
1:53PM1.28m
3:10AM1.24m
2:57PM1.19m
4:08AM1.34m
4:09PM1.12m
5:05AM1.45m
Low Tide
1:48AM0.40m
3:16PM0.22m
2:27AM0.40m
3:54PM0.19m
3:05AM0.39m
4:32PM0.18m
3:43AM0.40m
5:10PM0.18m
5:47PM0.18m
5:05AM0.44m
6:26PM0.18m
5:52AM0.48m
7:05PM0.18m
6:48AM0.51m
7:48PM0.19m
7:53AM0.53m
8:34PM0.21m
9:08AM0.52m
9:25PM0.23m
10:26AM0.45m
10:19PM0.26m
11:40AM0.35m
Wave
height (m) 
direction
period (s) 
1.4
NE
7
1.1
NE
7
1
NE
7
0.9
NE
6
1.3
S
6
1.1
NE
7
0.9
NE
7
1.1
NE
7
1.1
NE
8
1
NE
8
1.2
NE
8
1.7
ENE
8
1.7
S
9
1.2
SSE
8
1.2
S
9
1.9
S
7
1.4
S
8
1.4
S
9
1.2
ENE
5
1.7
S
11
2.5
S
11
2.1
S
10
1.9
S
10
1.8
S
10
1.9
S
13
1.8
S
12
1.7
S
11
1.5
S
10
1.7
S
9
1.8
S
9
1.7
S
9
1.4
S
9
1.3
S
8
1.5
SSE
9
1.5
SSE
10
1.7
SSE
9
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
rain showers
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
some clouds
clear
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
clear
rain shwrs
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
 km/h
10
N
5
SSE
25
WNW
10
SW
10
SE
15
NE
10
SSE
5
NE
10
NNW
15
N
25
SSE
20
SE
5
SE
10
NE
20
ENE
20
S
10
ENE
25
NE
5
WNW
25
SSE
25
SSE
15
SSE
10
ESE
15
E
10
ESE
10
E
20
E
15
SSE
20
SSE
20
SE
15
SSE
15
ESE
15
E
10
NNE
20
NE
30
NE
 mm 
2
1
max°C
24
32
32
32
24
26
24
29
34
26
26
22
20
24
24
23
23
23
21
21
18
18
18
19
18
20
21
20
20
20
18
19
19
18
21
22
Moonrise
4:24
5:12
6:06
7:05
8:06
9:08
10:10
11:12
12:15
1:19
2:26
3:37
Moonset
7:39
8:31
9:19
10:00
10:35
11:07
11:35
12:02
12:29
12:57
1:29
Sunrise
5:39
5:39
5:39
5:41
5:41
5:41
5:41
5:43
5:43
5:43
5:45
5:45
Sunset
8:02
8:02
8:04
8:04
8:05
8:05
8:06
8:06
8:06
8:07
8:07
8:07
8:07
Today's sea temperature in Dee Why is
22.0° C
(Statistics for 18 Dec 1981-2005 – mean: 22.0 max: 24.1 min: 20.2°C)
Issued (local time): 10 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest