Fort McHenry Marsh, Patapsco River Sea Conditions and Tide Table

Fort McHenry Marsh, Patapsco 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 — and sunset is at 08:23 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 27°C on Thu afternoon, min 13°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 8mm), mostly falling on Sat night. Warm (max 31°C on Sat afternoon, min 19°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Warm (max 27°C on Wed afternoon, min 15°C on Sun night). Wind will be generally light.

Days 14–17 Weather Summary

Heavy rain (total 35mm), heaviest during Fri night. Warm (max 29°C on Thu afternoon, min 19°C on Wed night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sun
14
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
night
AM
Wave Height Map
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High Tide
6:16PM0.31m
6:53AM0.58m
6:59PM0.33m
7:32AM0.57m
7:42PM0.34m
8:09AM0.55m
8:24PM0.36m
8:46AM0.54m
9:08PM0.37m
9:21AM0.53m
9:52PM0.37m
9:56AM0.52m
10:39PM0.37m
10:34AM0.52m
11:28PM0.37m
11:14AM0.51m
00:19AM0.38m
11:59AM0.48m
1:13AM0.41m
12:50PM0.45m
2:06AM0.46m
1:47PM0.40m
2:59AM0.52m
2:50PM0.36m
3:52AM0.58m
3:53PM0.33m
4:45AM0.63m
4:53PM0.32m
Low Tide
11:54PM0.11m
2:24PM0.16m
00:37AM0.11m
2:59PM0.17m
1:22AM0.12m
3:33PM0.17m
2:06AM0.12m
4:08PM0.17m
2:48AM0.14m
4:46PM0.16m
3:29AM0.15m
5:26PM0.16m
6:07PM0.15m
6:45PM0.14m
5:50AM0.20m
7:21PM0.14m
7:04AM0.22m
7:51PM0.14m
8:30AM0.22m
8:20PM0.13m
9:55AM0.20m
8:51PM0.12m
11:10AM0.17m
9:31PM0.10m
12:15PM0.14m
Wave
Height (m)
Direction
Period (s)
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
cloud
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
light rain
mod rain
mod rain
mod rain
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
some clouds
some clouds
cloudy
rain shwrs
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
clear
clear
clear
clear
some clouds
light rain
mod rain
mod rain
mod rain
risk tstorm
clear
km/h
20
NW
25
N
20
N
10
N
5
NNE
5
SE
10
SSW
15
N
20
N
15
E
15
NE
15
NE
10
W
15
NNE
15
NW
10
NNW
25
NNW
15
NNW
10
NNW
15
NW
15
WNW
5
WSW
10
SW
10
WSW
10
WSW
20
NW
20
NNW
15
NW
20
N
15
N
15
N
10
NNW
10
NNW
15
NNW
10
N
10
NNW
15
W
10
NW
10
WNW
10
WSW
15
W
10
SW
10
SW
15
SW
10
W
10
WSW
20
W
8
2
10
9
8
6
max °C
23
15
19
18
17
21
20
21
24
22
17
22
19
21
22
21
22
27
25
26
29
27
28
31
22
22
22
20
22
25
24
22
24
23
24
27
26
26
29
28
27
29
21
20
24
22
26
Moonrise
8:18
9:16
10:08
10:54
11:32
12:04
12:32
12:57
1:20
1:42
2:06
2:33
3:06
3:46
4:38
Moonset
4:44
5:23
6:09
7:02
8:00
9:02
10:05
11:09
12:13
1:17
2:24
3:34
4:48
6:06
7:26
Sunrise
5:41
5:41
5:41
5:41
5:41
5:39
5:39
5:39
5:39
5:39
5:39
5:39
5:39
5:39
5:39
5:39
Sunset
8:23
8:24
8:24
8:25
8:27
8:27
8:28
8:29
8:29
8:30
8:30
8:30
8:31
8:31
8:32
8:32
Today's sea temperature in Fort McHenry Marsh, Patapsco River is
19.8° C
(Statistics for 29 May 1981-2005 – mean: 13.7 max: 17.1 min: 10.1°C)
Issued (local time): 7 pm Friday 29 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest