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 06:45 AM and sunset is at 06:07 PM.

Days 1–3 Weather Summary

Moderate rain (total 12mm), heaviest on Fri afternoon. Cool air temperatures (max 10°C on Sat night, min 4°C on Sun night). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 77mm), heaviest during Tue night. Cool air temperatures (max 10°C on Wed morning, min 3°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed afternoon).

Days 7–9 Weather Summary

Heavy rain (total 53mm), heaviest during Sat morning. Very mild (max 11°C on Sat morning, min 2°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the SW by Sat afternoon).

Days 10–12 Weather Summary

Heavy rain (total 91mm), heaviest during Sun night. Very mild (max 11°C on Mon morning, min 3°C on Sun night). Winds increasing (calm on Sun afternoon, strong winds from the S by Mon night).

Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sat
21
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
3:20PM2.82m
3:22AM3.09m
4:01PM2.65m
3:48AM3.02m
4:45PM2.47m
4:17AM2.94m
5:34PM2.30m
4:51AM2.83m
6:32PM2.15m
5:37AM2.72m
7:43PM2.08m
8:58PM2.11m
8:04AM2.58m
10:05PM2.24m
9:19AM2.65m
10:57PM2.42m
10:22AM2.76m
11:39PM2.60m
11:16AM2.88m
00:17AM2.78m
12:04PM2.97m
00:51AM2.94m
12:51PM3.01m
1:23AM3.06m
1:37PM3.00m
1:53AM3.17m
2:23PM2.93m
Low Tide
9:08AM0.31m
9:09PM0.61m
9:47AM0.34m
9:41PM0.84m
10:27AM0.40m
10:12PM1.07m
11:11AM0.50m
10:45PM1.27m
12:03PM0.60m
11:28PM1.45m
1:05PM0.68m
00:42AM1.57m
2:13PM0.68m
2:05AM1.58m
3:17PM0.60m
3:17AM1.45m
4:13PM0.47m
4:18AM1.24m
5:00PM0.34m
5:11AM0.99m
5:43PM0.23m
5:58AM0.72m
6:22PM0.17m
6:43AM0.45m
7:00PM0.18m
7:26AM0.20m
7:37PM0.24m
8:09AM0.00m
Wave
height (m) 
direction
period (s) 
light rain
light rain
light rain
cloud
cloud
light rain
clear
part cloud
light rain
rain showers
rain showers
rain showers
light rain
light rain
heavy rain
heavy rain
light rain
heavy rain
cloud
cloud
light rain
part cloud
cloud
mod rain
heavy rain
heavy rain
heavy rain
light rain
cloud
heavy rain
heavy rain
heavy rain
heavy rain
light rain
mod rain
rain showers
rain showers
clear
mod rain
rain showers
rain showers
rain showers
cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
cloudy
cloudy
light rain
clear
some clouds
light rain
rain shwrs
rain shwrs
rain shwrs
light rain
light rain
heavy rain
heavy rain
light rain
heavy rain
cloudy
cloudy
light rain
some clouds
cloudy
mod rain
heavy rain
heavy rain
heavy rain
light rain
cloudy
heavy rain
heavy rain
heavy rain
heavy rain
light rain
mod rain
rain shwrs
rain shwrs
clear
mod rain
rain shwrs
rain shwrs
rain shwrs
cloudy
some clouds
cloudy
cloudy
light rain
 km/h
15
S
15
SSW
15
SW
10
SW
10
SW
20
SSW
20
NW
15
NW
5
WSW
15
WNW
20
W
5
W
10
SW
20
SW
30
SSW
10
WSW
35
SW
20
W
20
W
20
W
10
WNW
0
ESE
5
NW
10
E
15
SSW
40
SW
15
W
10
WNW
10
NW
10
ENE
25
SSW
35
SSW
40
S
35
SSW
10
WNW
5
W
15
SSW
15
SW
10
ESE
20
WSW
25
WNW
5
WSW
5
SSE
0
W
10
ENE
10
E
10
SSW
 mm 
1
4
1
5
1
2
2
3
2
2
25
19
4
18
1
8
16
16
12
1
26
23
11
17
5
6
1
2
8
2
2
2
1
max°C
9
9
9
9
9
10
9
8
5
7
6
3
6
6
8
10
10
7
8
8
6
7
7
4
11
11
8
8
8
4
11
11
11
11
8
7
10
9
6
7
7
6
8
9
5
13
11
Moonrise
10:15
11:25
1:33
2:39
3:39
4:30
5:12
5:44
6:11
6:32
6:51
7:08
7:26
7:45
8:07
Moonset
7:44
8:02
9:25
9:53
10:29
11:14
12:10
1:15
2:25
3:39
4:54
6:10
7:27
8:45
10:07
Sunrise
6:45
6:43
7:41
6:39
6:37
6:35
6:33
6:31
6:28
6:26
6:24
6:22
6:20
6:18
6:16
6:15
Sunset
6:07
6:08
7:10
6:12
6:14
6:15
6:16
6:17
6:19
6:21
6:22
6:23
6:24
6:25
6:28
6:29
Today's sea temperature in Mailboat Slough, Willapa River is
9.0° C
(Statistics for 06 Mar 1981-2005 – mean: 9.3 max: 11.0 min: 7.9°C)
Issued (local time): 9 am Friday 06 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest