Mailboat Slough, Willapa River Sea Conditions and Tide Table

Mailboat Slough, Willapa 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 05:41 AM and sunset is at 09:00 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Cool air temperatures (max 19°C on Mon afternoon, min 11°C on Tue night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 20°C on Wed afternoon, min 11°C on Wed night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 20°C on Mon afternoon, min 11°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Very mild (max 17°C on Tue morning, min 10°C on Thu night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
31
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
10:35AM1.86m
9:59PM2.84m
11:50AM1.98m
11:01PM2.90m
12:53PM2.13m
00:01AM2.94m
1:46PM2.26m
00:57AM2.95m
2:34PM2.37m
1:49AM2.92m
3:17PM2.45m
2:37AM2.84m
3:56PM2.51m
3:23AM2.72m
4:32PM2.53m
4:07AM2.56m
5:04PM2.53m
5:35PM2.52m
5:38AM2.17m
6:07PM2.50m
6:29AM1.97m
6:41PM2.47m
Low Tide
3:45PM0.88m
5:05AM-0.37m
4:52PM0.91m
6:03AM-0.54m
5:54PM0.86m
6:57AM-0.64m
6:52PM0.77m
7:45AM-0.68m
7:45PM0.66m
8:30AM-0.65m
8:35PM0.57m
9:11AM-0.55m
9:22PM0.52m
9:50AM-0.40m
10:07PM0.48m
10:27AM-0.19m
10:52PM0.47m
11:02AM0.05m
11:39PM0.47m
11:37AM0.32m
00:28AM0.46m
12:13PM0.59m
1:23AM0.44m
Wave
height (m) 
direction
period (s) 
cloud
cloud
light rain
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
cloudy
cloudy
light rain
some clouds
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
clear
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
clear
clear
some clouds
clear
clear
 km/h
5
W
5
WNW
5
NNW
5
W
15
W
5
SW
5
W
15
WNW
0
NNW
10
W
15
WNW
0
WSW
10
WSW
15
W
5
WSW
10
W
15
W
0
SW
10
W
15
WNW
0
E
10
WSW
10
W
5
SSE
10
W
15
WNW
0
WNW
15
WNW
15
WNW
5
WNW
10
WNW
15
WNW
5
W
15
WNW
15
WNW
5
NNW
 mm 
2
max°C
15
17
13
18
19
15
17
19
15
18
20
15
15
17
14
16
17
14
17
19
15
18
19
16
19
20
16
17
17
13
16
17
14
16
17
14
Moonrise
1:08
1:50
2:47
3:57
5:15
6:35
7:52
9:05
10:15
11:23
12:30
1:36
Moonset
5:51
7:05
8:05
8:51
9:24
9:49
10:09
10:25
10:40
10:55
11:10
11:28
Sunrise
5:41
5:41
5:43
5:43
5:45
5:46
5:48
5:48
5:50
5:50
5:52
5:52
Sunset
9:00
9:00
8:59
8:58
8:57
8:54
8:53
8:52
8:52
8:51
8:49
8:47
Today's sea temperature in Mailboat Slough, Willapa River is 14.5 °C (Statistics for 20 Jul 1981-2005 – mean: 15.0 max: 16.7 min: 13.5°C)
Issued (local time): 4 am Sunday 20 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest