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 07:58 AM and sunset is at 04:30 PM.

Days 1–3 Weather Summary

Light rain (total 8mm), mostly falling on Thu morning. Low air temperatures (max 7°C on Wed morning, min 4°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Sat morning, min 3°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 36mm), heaviest during Thu morning. Very mild (max 11°C on Wed night, min 5°C on Tue morning). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 76mm), heaviest during Sun afternoon. Mild temperatures (max 8°C on Sun afternoon, min 4°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the SW by Sun night).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
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
Wave Height Map
High Tide
3:27PM2.96m
5:08AM2.80m
4:15PM2.83m
5:44AM2.87m
5:13PM2.67m
6:24AM2.95m
6:21PM2.49m
7:07AM3.06m
7:40PM2.37m
7:56AM3.17m
9:02PM2.33m
8:50AM3.29m
10:21PM2.39m
9:45AM3.40m
11:33PM2.51m
10:42AM3.47m
00:35AM2.66m
11:40AM3.53m
1:29AM2.79m
12:36PM3.55m
2:18AM2.90m
1:30PM3.51m
3:04AM2.99m
Low Tide
9:48AM1.29m
10:15PM0.17m
10:37AM1.24m
10:55PM0.31m
11:33AM1.15m
11:38PM0.51m
12:37PM1.01m
00:29AM0.73m
1:43PM0.79m
1:27AM0.96m
2:49PM0.52m
2:30AM1.14m
3:51PM0.23m
3:35AM1.26m
4:50PM-0.04m
4:38AM1.33m
5:46PM-0.24m
5:38AM1.29m
6:39PM-0.37m
6:34AM1.20m
7:28PM-0.41m
7:28AM1.10m
8:14PM-0.37m
Wave
height (m) 
direction
period (s) 
light rain
part cloud
part cloud
light rain
part cloud
part cloud
cloud
cloud
rain showers
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
light rain
heavy rain
heavy rain
mod rain
mod rain
rain showers
light rain
light rain
light rain
heavy rain
light rain
heavy rain
mod rain
light rain
some clouds
some clouds
light rain
some clouds
some clouds
cloudy
cloudy
rain shwrs
some clouds
cloudy
some clouds
clear
clear
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
light rain
heavy rain
heavy rain
mod rain
mod rain
rain shwrs
light rain
light rain
light rain
heavy rain
light rain
heavy rain
mod rain
 km/h
10
SSE
5
S
10
ENE
15
E
5
E
5
ENE
5
WSW
20
WNW
10
WNW
5
NW
5
WNW
0
ENE
5
E
5
NE
10
ENE
10
ENE
10
NE
10
ENE
10
E
5
E
5
ESE
10
SE
10
SE
10
SE
10
SSE
20
WNW
25
SW
20
W
15
WSW
10
SE
10
SE
15
SE
15
SSW
20
SSE
30
SSE
30
SW
 mm 
2
5
1
1
13
13
9
9
1
1
2
2
19
4
30
7
max°C
7
7
6
6
7
5
7
7
6
8
7
6
5
5
3
7
7
4
8
8
7
10
9
11
9
7
7
7
7
5
5
5
7
6
8
7
Moonrise
10:59
11:17
11:34
11:51
12:09
12:31
12:59
1:38
2:31
3:39
5:00
6:24
Moonset
9:27
10:40
11:53
1:09
2:28
3:52
5:18
6:40
7:50
8:44
9:23
Sunrise
7:58
7:58
7:58
7:58
7:58
7:58
7:58
7:58
7:58
7:58
7:58
7:58
Sunset
4:30
4:31
4:32
4:32
4:34
4:35
4:36
4:37
4:37
4:38
4:39
4:40
Today's sea temperature in Mailboat Slough, Willapa River is
10.3° C
(Statistics for 24 Dec 1981-2005 – mean: 9.5 max: 10.9 min: 8.0°C)
Issued (local time): 9 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest