tidealmanac

Mad River Slough, Arcata Bay, CA tide chart

NOAA station 9418865 · Subordinate station · Datum MLLW · Local time (America/Los_Angeles)

Change stationFull year 2026

Today · Sun, Oct 25

High tideLow tide
  1. High12:25 AM6.6 ft2.01 m
  2. Low5:48 AM1.9 ft0.58 m
  3. High12:09 PM8.4 ft2.56 m
  4. Low6:42 PM-0.6 ft-0.18 m

This is a subordinate station: NOAA predicts its highs and lows from a nearby reference station and publishes no curve for it. Nothing is interpolated.

Next high1:17 AM6.7 ft2.03 m · in 6h 24m
Next low6:25 AM2.3 ft0.70 m · in 11h 32m
Range today9.0 ft2.73 m4 predicted tides today
MoonFullFull moon · spring tides

October 2026

Full year
Date1st tide2nd tide3rd tide4th tide
1Thu
4:59 AMHigh · 5.8 ft1.77 m
9:32 AMLow · 3.3 ft1.02 m
3:52 PMHigh · 8.3 ft2.52 m
11:04 PMLow · -0.4 ft-0.13 m
2Fri
6:12 AMHigh · 5.5 ft1.69 m
10:27 AMLow · 3.8 ft1.15 m
4:50 PMHigh · 7.9 ft2.42 m
3Sat
12:11 AMLow · -0.2 ft-0.07 m
7:33 AMHigh · 5.5 ft1.67 m
11:44 AMLow · 4.0 ft1.23 m
6:03 PMHigh · 7.5 ft2.30 m
4Sun
1:23 AMLow · -0.1 ft-0.03 m
8:48 AMHigh · 5.7 ft1.74 m
1:18 PMLow · 3.9 ft1.19 m
7:25 PMHigh · 7.3 ft2.21 m
5Mon
2:31 AMLow · 0.0 ft-0.01 m
9:47 AMHigh · 6.1 ft1.86 m
2:43 PMLow · 3.4 ft1.03 m
8:45 PMHigh · 7.2 ft2.18 m
6Tue
3:31 AMLow · 0.0 ft0.00 m
10:32 AMHigh · 6.6 ft2.00 m
3:53 PMLow · 2.6 ft0.79 m
9:56 PMHigh · 7.2 ft2.18 m
7Wed
4:21 AMLow · 0.1 ft0.04 m
11:10 AMHigh · 7.1 ft2.15 m
4:49 PMLow · 1.7 ft0.53 m
10:59 PMHigh · 7.2 ft2.18 m
8Thu
5:05 AMLow · 0.4 ft0.11 m
11:44 AMHigh · 7.5 ft2.29 m
5:38 PMLow · 0.9 ft0.29 m
11:54 PMHigh · 7.1 ft2.17 m
9Fri
5:45 AMLow · 0.8 ft0.23 m
12:16 PMHigh · 7.9 ft2.40 m
6:23 PMLow · 0.3 ft0.09 m
10Sat
12:46 AMHigh · 7.0 ft2.13 m
6:22 AMLow · 1.3 ft0.39 m
12:46 PMHigh · 8.1 ft2.47 m
7:04 PMLow · -0.2 ft-0.05 m
11Sun
1:34 AMHigh · 6.8 ft2.07 m
6:57 AMLow · 1.8 ft0.56 m
1:15 PMHigh · 8.2 ft2.50 m
7:44 PMLow · -0.4 ft-0.12 m
12Mon
2:21 AMHigh · 6.6 ft2.00 m
7:31 AMLow · 2.4 ft0.74 m
1:44 PMHigh · 8.1 ft2.48 m
8:24 PMLow · -0.4 ft-0.14 m
13Tue
3:08 AMHigh · 6.3 ft1.92 m
8:05 AMLow · 3.0 ft0.91 m
2:14 PMHigh · 8.0 ft2.43 m
9:04 PMLow · -0.3 ft-0.09 m
14Wed
3:56 AMHigh · 6.0 ft1.83 m
8:40 AMLow · 3.5 ft1.06 m
2:45 PMHigh · 7.7 ft2.34 m
9:46 PMLow · 0.0 ft-0.01 m
15Thu
4:48 AMHigh · 5.7 ft1.74 m
9:16 AMLow · 3.9 ft1.18 m
3:20 PMHigh · 7.3 ft2.23 m
10:33 PMLow · 0.3 ft0.09 m
16Fri
5:47 AMHigh · 5.4 ft1.66 m
9:59 AMLow · 4.2 ft1.27 m
4:02 PMHigh · 6.9 ft2.11 m
11:26 PMLow · 0.6 ft0.19 m
17Sat
6:55 AMHigh · 5.3 ft1.62 m
10:59 AMLow · 4.4 ft1.33 m
4:57 PMHigh · 6.5 ft1.99 m
18Sun
12:25 AMLow · 0.9 ft0.27 m
8:04 AMHigh · 5.4 ft1.64 m
12:24 PMLow · 4.4 ft1.33 m
6:08 PMHigh · 6.2 ft1.88 m
19Mon
1:28 AMLow · 1.0 ft0.30 m
9:00 AMHigh · 5.6 ft1.70 m
1:51 PMLow · 4.1 ft1.24 m
7:26 PMHigh · 6.0 ft1.83 m
20Tue
2:25 AMLow · 1.0 ft0.31 m
9:40 AMHigh · 5.9 ft1.80 m
3:00 PMLow · 3.5 ft1.07 m
8:38 PMHigh · 6.0 ft1.83 m
21Wed
3:13 AMLow · 1.0 ft0.31 m
10:12 AMHigh · 6.3 ft1.93 m
3:53 PMLow · 2.8 ft0.84 m
9:42 PMHigh · 6.1 ft1.86 m
22Thu
3:56 AMLow · 1.1 ft0.33 m
10:41 AMHigh · 6.8 ft2.08 m
4:38 PMLow · 1.9 ft0.59 m
10:40 PMHigh · 6.3 ft1.92 m
23Fri
4:34 AMLow · 1.3 ft0.38 m
11:09 AMHigh · 7.4 ft2.24 m
5:19 PMLow · 1.0 ft0.32 m
11:34 PMHigh · 6.5 ft1.97 m
24Sat
5:11 AMLow · 1.5 ft0.47 m
11:38 AMHigh · 7.9 ft2.41 m
6:00 PMLow · 0.2 ft0.05 m
25Sun
12:25 AMHigh · 6.6 ft2.01 m
5:48 AMLow · 1.9 ft0.58 m
12:09 PMHigh · 8.4 ft2.56 m
6:42 PMLow · -0.6 ft-0.18 m
26Mon
1:17 AMHigh · 6.7 ft2.03 m
6:25 AMLow · 2.3 ft0.70 m
12:41 PMHigh · 8.8 ft2.67 m
7:24 PMLow · -1.2 ft-0.35 m
27Tue
2:09 AMHigh · 6.6 ft2.02 m
7:04 AMLow · 2.7 ft0.83 m
1:17 PMHigh · 9.0 ft2.74 m
8:10 PMLow · -1.5 ft-0.45 m
28Wed
3:02 AMHigh · 6.5 ft1.98 m
7:45 AMLow · 3.1 ft0.95 m
1:56 PMHigh · 9.0 ft2.75 m
8:58 PMLow · -1.5 ft-0.47 m
29Thu
4:00 AMHigh · 6.3 ft1.91 m
8:31 AMLow · 3.5 ft1.06 m
2:42 PMHigh · 8.8 ft2.69 m
9:51 PMLow · -1.4 ft-0.41 m
30Fri
5:01 AMHigh · 6.1 ft1.85 m
9:25 AMLow · 3.8 ft1.14 m
3:34 PMHigh · 8.4 ft2.56 m
10:48 PMLow · -1.0 ft-0.31 m
31Sat
6:07 AMHigh · 6.0 ft1.83 m
10:32 AMLow · 3.9 ft1.20 m
4:37 PMHigh · 7.8 ft2.38 m
11:50 PMLow · -0.6 ft-0.18 m
Thu14:59 AM5.8 ft1.77 m9:32 AM3.3 ft1.02 m3:52 PM8.3 ft2.52 m11:04 PM-0.4 ft-0.13 mFri26:12 AM5.5 ft1.69 m10:27 AM3.8 ft1.15 m4:50 PM7.9 ft2.42 mSat312:11 AM-0.2 ft-0.07 m7:33 AM5.5 ft1.67 m11:44 AM4.0 ft1.23 m6:03 PM7.5 ft2.30 mSun41:23 AM-0.1 ft-0.03 m8:48 AM5.7 ft1.74 m1:18 PM3.9 ft1.19 m7:25 PM7.3 ft2.21 mMon52:31 AM0.0 ft-0.01 m9:47 AM6.1 ft1.86 m2:43 PM3.4 ft1.03 m8:45 PM7.2 ft2.18 mTue63:31 AM0.0 ft0.00 m10:32 AM6.6 ft2.00 m3:53 PM2.6 ft0.79 m9:56 PM7.2 ft2.18 mWed74:21 AM0.1 ft0.04 m11:10 AM7.1 ft2.15 m4:49 PM1.7 ft0.53 m10:59 PM7.2 ft2.18 mShow the whole month

Heights relative to MLLW; times local to the station. Predictions from NOAA CO-OPS; not for navigation.

Nearby stations

Distance from this station. A nearer station is not necessarily the right one for your shore.
Arcata WharfCA · NOAA 9418851 · 2 mi (3 km)SamoaCA · NOAA 9418817 · 3 mi (5 km)Eureka Slough BridgeCA · NOAA 9418802 · 4 mi (7 km)EurekaCA · NOAA 9418801 · 4 mi (7 km)