Onion Key, Lostmans River Sea Conditions and Tide Table

Onion Key, Lostmans River 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 07:11 AM and sunset is at 05:59 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Thu afternoon. Warm air temperatures (max 25°C on Thu morning, min 15°C on Tue morning). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 27°C on Sat morning, min 21°C on Fri night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 25°C on Mon morning, min 12°C on Mon night). Winds increasing (light winds from the NNE on Mon morning, fresh winds from the NNE by Tue morning).

Days 10–12 Weather Summary

Mostly dry. Warm (max 22°C on Fri morning, min 9°C on Sat night). Mainly fresh winds.

Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
1
Monday
2
Tuesday
3
Wed
4
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
5:08PM0.17m
3:56AM0.21m
5:38PM0.18m
4:38AM0.20m
6:05PM0.18m
5:28AM0.18m
6:30PM0.18m
6:32AM0.16m
6:55PM0.19m
7:55AM0.14m
7:25PM0.19m
9:39AM0.12m
8:09PM0.19m
11:55AM0.12m
2:14PM0.12m
9:17PM0.20m
2:39PM0.13m
10:53PM0.20m
2:57PM0.14m
00:12AM0.21m
3:13PM0.15m
1:14AM0.23m
3:31PM0.16m
2:07AM0.23m
3:52PM0.16m
2:56AM0.23m
4:17PM0.17m
3:42AM0.23m
4:44PM0.18m
Low Tide
12:15PM-0.03m
00:16AM0.04m
12:48PM-0.02m
00:57AM0.03m
1:21PM-0.01m
1:43AM0.02m
1:55PM0.00m
2:37AM0.02m
2:27PM0.02m
3:41AM0.01m
3:00PM0.04m
4:55AM-0.00m
3:31PM0.06m
6:08AM-0.02m
3:13PM0.07m
7:16AM-0.03m
6:55PM0.08m
8:17AM-0.04m
8:05PM0.07m
9:12AM-0.05m
9:04PM0.06m
10:01AM-0.05m
9:57PM0.05m
10:46AM-0.05m
10:46PM0.04m
11:28AM-0.05m
11:32PM0.03m
12:07PM-0.03m
Wave
height (m) 
direction
period (s) 
clear
clear
clear
part cloud
cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
risk tstorm
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
 km/h
30
NE
25
NE
20
NNE
25
ENE
25
ENE
15
NNE
15
NE
10
NE
10
NE
10
E
10
SW
5
E
15
E
15
SSE
10
ESE
10
SSE
15
SW
5
NNW
10
NNE
30
N
35
N
35
NNE
30
NE
25
NNE
20
NE
20
NE
20
NNE
25
NNE
20
E
15
NE
20
E
15
ESE
5
SE
20
SSW
30
WNW
25
NNW
20
N
15
NW
20
N
15
NNE
10
NNW
10
NE
10
ESE
15
SW
10
ESE
10
S
15
WSW
 mm 
1
max°C
20
22
19
21
22
20
25
25
22
26
25
22
27
27
22
26
25
22
25
21
14
20
20
15
20
21
18
21
21
19
22
21
21
22
20
15
14
16
12
15
17
14
20
20
18
22
22
Moonrise
8:31
9:05
9:37
10:09
10:42
11:17
11:58
12:44
1:39
2:41
3:49
4:58
6:05
7:09
8:09
Moonset
7:53
8:50
9:48
10:46
11:46
12:49
1:55
3:04
4:12
5:15
6:12
7:00
7:41
8:18
8:50
Sunrise
7:11
7:11
7:11
7:11
7:09
7:09
7:09
7:09
7:09
7:09
7:07
7:07
7:07
7:07
7:05
7:05
Sunset
5:59
6:00
6:00
6:00
6:01
6:02
6:04
6:04
6:05
6:06
6:07
6:07
6:07
6:08
6:08
6:09
Today's sea temperature in Onion Key, Lostmans River is
20.5° C
(Statistics for 20 Jan 1981-2005 – mean: 23.0 max: 24.1 min: 21.5°C)
Issued (local time): 6 am Tuesday 20 Jan 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest