- Low 4:34 AM 1.3 ft
- High 11:09 AM 7.4 ft
- Low 5:19 PM 1.0 ft
- High 11:34 PM 6.5 ft
First light 7:08 AMSunrise 7:37 AMSunset 6:23 PMLast light 6:52 PM
Mad River Slough, Arcata Bay, CA Tide Chart & Tide Times
NOAA tide station 9418865 · California · updated Oct 23, 2026
Fri, Oct 23: High tide 11:09 AM (7.4 ft) and 11:34 PM (6.5 ft); low tide 4:34 AM (1.3 ft) and 5:19 PM (1.0 ft).
Tide todayHigh 11:09 AM · High 11:34 PMLow 4:34 AM · Low 5:19 PM
Today's range6.3 ft1.0 → 7.4 ft (MLLW)
Waves (buoy)Loading…NDBC 46244
Water temp (buoy)Loading…
WindLoading…
Sun7:37 AM – 6:23 PMFirst light 7:08 AM · Last light 6:52 PM
Buoy: NOAA NDBC 46244 (Humboldt Bay, North Spit, CA (168)), 11 mi away. Buoy readings are recent observations, not a surf forecast. Wind: observed at NOAA CO-OPS station 9418767 (North Spit), 8 mi away; forecast from the NOAA National Weather Service (api.weather.gov).
Mad River Slough, Arcata Bay tides — next 3 days
Shaded = night · heights in feet above MLLW · local time
- Low 5:11 AM 1.5 ft
- High 11:38 AM 7.9 ft
- Low 6:00 PM 0.2 ft
First light 7:09 AMSunrise 7:38 AMSunset 6:22 PMLast light 6:51 PM
- High 12:25 AM 6.6 ft
- Low 5:48 AM 1.9 ft
- High 12:09 PM 8.4 ft
- Low 6:42 PM -0.6 ft
First light 7:10 AMSunrise 7:39 AMSunset 6:21 PMLast light 6:49 PM
- High 1:17 AM 6.7 ft
- Low 6:25 AM 2.3 ft
- High 12:41 PM 8.8 ft
- Low 7:24 PM -1.2 ft
First light 7:11 AMSunrise 7:40 AMSunset 6:19 PMLast light 6:48 PM
Mad River Slough, Arcata Bay tide table — next 9 days
| Fri, Oct 23 | Low 4:34 AM 1.26 ft | High 11:09 AM 7.36 ft | Low 5:19 PM 1.04 ft | High 11:34 PM 6.46 ft |
|---|---|---|---|---|
| Sat, Oct 24 | Low 5:11 AM 1.53 ft | High 11:38 AM 7.90 ft | Low 6:00 PM 0.17 ft | |
| Sun, Oct 25 | High 12:25 AM 6.60 ft | Low 5:48 AM 1.89 ft | High 12:09 PM 8.38 ft | Low 6:42 PM -0.59 ft |
| Mon, Oct 26 | High 1:17 AM 6.66 ft | Low 6:25 AM 2.30 ft | High 12:41 PM 8.77 ft | Low 7:24 PM -1.16 ft |
| Tue, Oct 27 | High 2:09 AM 6.62 ft | Low 7:04 AM 2.72 ft | High 1:17 PM 9.00 ft | Low 8:10 PM -1.48 ft |
| Wed, Oct 28 | High 3:02 AM 6.48 ft | Low 7:45 AM 3.12 ft | High 1:56 PM 9.03 ft | Low 8:58 PM -1.54 ft |
| Thu, Oct 29 | High 4:00 AM 6.28 ft | Low 8:31 AM 3.47 ft | High 2:42 PM 8.82 ft | Low 9:51 PM -1.35 ft |
| Fri, Oct 30 | High 5:01 AM 6.09 ft | Low 9:25 AM 3.75 ft | High 3:34 PM 8.40 ft | Low 10:48 PM -1.00 ft |
| Sat, Oct 31 | High 6:07 AM 6.00 ft | Low 10:32 AM 3.92 ft | High 4:37 PM 7.82 ft | Low 11:50 PM -0.58 ft |
Times are local (standard/daylight). Heights in feet above MLLW.
Nearby tide stations
- Arcata Wharf, CA 1.9 mi
- Samoa, CA 3.1 mi
- Eureka Slough Bridge, CA 4.0 mi
- Eureka, CA 4.1 mi
- Bucksport, CA 6.5 mi
- Humboldt Bay (North Spit), CA 7.7 mi
- Elk River Railroad Bridge, CA 7.8 mi
- Fields Landing, CA 10.5 mi
About this station
- NOAA station ID
- 9418865
- Type
- Subordinate station (offsets from NOAA station 9418767)
- Coordinates
- 40.8650, -124.1480
- Datum
- MLLW (feet)
- Time zone
- America/Los_Angeles
FAQ
When is high tide today at Mad River Slough, Arcata Bay, CA?
On Fri, Oct 23, predicted high tide at Mad River Slough, Arcata Bay, CA is at 11:09 AM, 11:34 PM local time.
When is low tide today at Mad River Slough, Arcata Bay, CA?
On Fri, Oct 23, predicted low tide at Mad River Slough, Arcata Bay, CA is at 4:34 AM, 5:19 PM local time.
Where does this tide data come from?
Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 9418865. Heights are in feet relative to Mean Lower Low Water (MLLW).