Greystones Sea Conditions and Tide Table

Greystones 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 08:33 AM and sunset is at 04:07 PM.

Days 1–3 Weather Summary

Moderate rain (total 13mm), heaviest on Sun afternoon. Cool air temperatures (max 10°C on Fri night, min 7°C on Sun night). Winds decreasing (strong winds from the SSE on Sat morning, calm by Sun night).

Days 4–6 Weather Summary

Moderate rain (total 10mm), heaviest on Tue afternoon. Low air temperatures (max 9°C on Mon night, min 4°C on Wed night). Winds increasing (light winds from the SW on Mon morning, fresh winds from the SSE by Mon night).

Days 7–9 Weather Summary

Some drizzle, heaviest during Sat morning. Mild temperatures (max 7°C on Sat morning, min 4°C on Thu morning). Winds increasing (light winds from the ESE on Thu afternoon, fresh winds from the E by Sat morning).

Days 10–12 Weather Summary

Some drizzle, heaviest during Sun night. Mild temperatures (max 9°C on Tue night, min 3°C on Mon night). Mainly fresh winds.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
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
11:10AM2.96m
11:35PM2.85m
11:48AM3.05m
00:14AM2.87m
12:26PM3.11m
00:53AM2.86m
1:04PM3.15m
1:32AM2.81m
1:42PM3.16m
2:12AM2.75m
2:21PM3.13m
2:55AM2.69m
3:01PM3.07m
3:40AM2.64m
3:44PM2.99m
4:30AM2.60m
4:32PM2.90m
5:26AM2.59m
5:28PM2.82m
6:27AM2.61m
6:34PM2.78m
7:32AM2.69m
7:47PM2.82m
Low Tide
5:00PM0.49m
5:11AM0.57m
5:38PM0.42m
5:47AM0.54m
6:16PM0.39m
6:22AM0.53m
6:54PM0.39m
6:57AM0.55m
7:33PM0.41m
7:34AM0.59m
8:13PM0.43m
8:14AM0.67m
8:56PM0.47m
8:58AM0.77m
9:43PM0.51m
9:50AM0.87m
10:37PM0.54m
10:51AM0.94m
11:39PM0.57m
12:00PM0.95m
00:44AM0.57m
1:12PM0.85m
1:49AM0.52m
Wave
height (m) 
direction
period (s) 
0.9
SSW
5
0.6
SSE
10
0.7
S
5
1.8
SSE
7
2.1
SSE
7
1.4
SE
6
1.2
SSE
6
0.9
SE
4
0.6
E
4
0.3
ENE
4
0.4
SE
3
0.9
SSE
5
1.1
SE
5
1
SE
6
1.2
E
5
1.2
ENE
5
1.2
ENE
6
1.1
ENE
6
0.8
ENE
5
0.7
ENE
5
0.5
ENE
5
0.5
E
4
0.5
ENE
4
0.8
ENE
4
1
ENE
5
1.2
ENE
5
1
ENE
5
0.8
ENE
4
0.7
NE
4
0.9
NE
5
0.7
NE
4
0.6
NE
4
0.5
NE
4
0.4
NE
4
0.4
NNW
3
0.7
NNW
3
clear
clear
part cloud
rain showers
light rain
rain showers
part cloud
mod rain
light rain
part cloud
part cloud
rain showers
light rain
light rain
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
light rain
cloud
part cloud
cloud
part cloud
rain showers
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
some clouds
rain shwrs
light rain
rain shwrs
some clouds
mod rain
light rain
some clouds
some clouds
rain shwrs
light rain
light rain
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
clear
some clouds
light rain
cloudy
some clouds
cloudy
some clouds
rain shwrs
cloudy
some clouds
clear
some clouds
some clouds
some clouds
 km/h
35
WSW
25
SW
20
S
45
SSE
50
SE
20
S
25
SSE
20
SE
5
WSW
5
SW
15
S
30
SSE
25
SE
25
E
25
E
30
ENE
25
E
15
E
10
ESE
10
ESE
10
SE
10
E
15
ENE
25
ENE
25
ENE
30
ENE
25
E
20
ENE
25
ENE
25
NE
20
NNE
20
N
15
NW
15
NW
20
NW
25
WNW
 mm 
1
2
2
7
1
1
4
5
1
1
max°C
9
9
10
10
10
9
9
8
9
7
7
9
9
9
9
8
8
6
5
5
5
5
5
6
7
7
6
7
7
8
8
7
5
5
6
9
Moonrise
8:46
9:40
10:19
10:47
11:06
11:20
11:32
11:41
11:51
12:01
12:14
12:31
Moonset
2:56
3:51
4:59
6:16
7:36
8:56
10:17
11:37
1:00
2:27
3:59
Sunrise
8:33
8:34
8:36
8:36
8:37
8:37
8:37
8:37
8:37
8:37
8:37
8:37
Sunset
4:07
4:07
4:07
4:07
4:08
4:09
4:09
4:10
4:12
4:13
4:14
4:15
Today's sea temperature in Greystones is
10.4° C
(Statistics for 19 Dec 1981-2005 – mean: 10.0 max: 11.2 min: 9.0°C)
Issued (local time): 11 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest