Mad River Slough, Arcata Bay, Humboldt Bay Sea Conditions and Tide Table

Mad River Slough, Arcata Bay, Humboldt Bay 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 08:45 PM.

Days 1–4 Weather Summary

Moderate rain (total 17mm), heaviest on Mon afternoon. Cool air temperatures (max 14°C on Mon night, min 8°C on Tue night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 17°C on Thu morning, min 11°C on Wed night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Warm (max 21°C on Tue morning, min 11°C on Sat night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 19°C on Tue afternoon, min 10°C on Wed night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the NNW by Thu morning).

Days 14–17 Weather Summary

Mostly dry. Very mild (max 16°C on Sat morning, min 10°C on Mon night). Wind will be generally light.

Sun
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
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
night
Wave Height Map
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High Tide
7:10PM1.87m
6:22AM1.62m
7:48PM2.00m
7:43AM1.52m
8:27PM2.16m
9:06AM1.50m
9:07PM2.34m
10:25AM1.55m
9:51PM2.51m
11:35AM1.64m
10:36PM2.67m
12:37PM1.74m
11:24PM2.78m
1:33PM1.82m
00:14AM2.84m
2:25PM1.88m
1:06AM2.83m
3:15PM1.92m
1:59AM2.74m
4:03PM1.95m
2:53AM2.57m
4:52PM1.99m
3:49AM2.34m
5:39PM2.04m
6:25PM2.10m
5:55AM1.80m
Low Tide
11:53AM0.10m
00:47AM0.88m
12:38PM0.26m
1:58AM0.66m
1:27PM0.43m
3:01AM0.37m
2:19PM0.60m
3:58AM0.06m
3:14PM0.75m
4:50AM-0.24m
4:09PM0.86m
5:41AM-0.50m
5:05PM0.93m
6:31AM-0.68m
5:59PM0.95m
7:20AM-0.78m
6:54PM0.94m
8:09AM-0.79m
7:49PM0.91m
8:57AM-0.71m
8:47PM0.88m
9:45AM-0.57m
9:49PM0.84m
10:33AM-0.37m
10:55PM0.79m
11:20AM-0.12m
00:07AM0.70m
12:07PM0.14m
Wave
Height (m)
Direction
Period (s)
1.6
WNW
8
1.2
WSW
10
0.9
WSW
10
1.4
WSW
10
2.1
WNW
9
2.1
WNW
10
2
W
9
1.9
WSW
13
1.8
WNW
10
2.5
NW
7
2.5
NW
8
2.2
NW
8
2.5
NW
8
2.4
NW
8
2.2
NW
8
2.5
NW
9
2.5
NNW
9
2.5
NW
9
2.5
NW
9
2.2
NW
8
1.8
NW
8
1.6
NW
8
1.3
NW
8
1.3
NW
7
1.2
NW
7
1.3
SW
22
1.7
NW
8
2.1
NW
8
3
NW
9
3
NW
9
4
NW
10
4
NW
10
3.5
NW
10
3
NW
10
3.5
NW
11
2.5
NW
10
2.3
NW
10
1.9
NW
10
1.6
NW
10
1.6
NW
10
1.5
NW
10
1.5
NW
9
1.8
NW
9
2.3
NW
9
2.5
NW
9
3
NW
9
2.5
NW
9
part cloud
part cloud
light rain
mod rain
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
some clouds
some clouds
light rain
mod rain
light rain
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
some clouds
km/h
15
NNW
5
E
15
SSE
20
SSE
5
WNW
15
NNW
20
N
10
NNE
15
NNW
25
N
10
NNE
15
NNW
15
NNW
5
NNE
15
NNW
15
NNW
10
N
15
NNW
10
NNW
5
SSE
15
SW
10
SW
0
ENE
10
WNW
5
WNW
5
NE
10
NW
10
NNW
5
N
25
N
30
NNW
25
N
30
NNW
25
NNW
5
NNE
10
W
10
WSW
10
S
10
WSW
10
WSW
5
NNE
15
NNW
15
NNW
0
SSE
15
NNW
20
NNW
5
N
3
10
4
max °C
13
11
11
13
14
13
14
12
13
14
12
17
17
12
17
17
12
15
15
12
16
16
14
17
16
14
21
19
15
16
16
12
14
14
13
16
16
14
16
16
14
15
15
12
14
14
11
Moonrise
1:34
1:55
2:18
2:44
3:16
3:57
4:49
5:55
7:11
8:31
9:49
11:03
12:12
1:19
2:23
Moonset
1:36
2:44
3:56
5:12
6:33
7:53
9:07
10:09
10:58
11:36
12:05
12:30
12:53
1:14
Sunrise
5:45
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:43
5:45
5:45
Sunset
8:45
8:45
8:46
8:46
8:47
8:47
8:49
8:49
8:49
8:50
8:50
8:50
8:51
8:51
8:51
8:51
Today's sea temperature in Mad River Slough, Arcata Bay, Humboldt Bay is
11.4° C
(Statistics for 07 Jun 1981-2005 – mean: 12.3 max: 14.5 min: 10.4°C)
Issued (local time): 4 pm Sunday 07 Jun 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest