TideAhead
CaliforniaNOAA 9418865

Mad River Slough, Arcata Bay Tides & Coastal Conditions

Official tide predictions, weather observations and forecasts, marine-grid context, astronomy, and jurisdiction-specific rules for this NOAA station.

Partial official dataUpdated 2:22 AM PDT

Current Conditions

Tide predictions are relative to MLLW. NWS point and marine-grid forecasts can differ at exposed shorelines.

Estimated tide now
—
Official tide prediction unavailable
Upcoming tides
Unavailable
Check the official station forecast.
Current Weather
53°F

Fog/Mist

Observed

SSW 5 mph

Observed
Tide Forecast
NOAA Station 9418865 · MLLW datum · local time
Subordinate station · NOAA reference station 9418767
unavailableOfficial NOAA curve

Current tide predictions are unavailable. Use the official NOAA station link in Sources and confidence.

Weather, Light & Marine

Conditions that affect shoreline access, small craft, fishing and surf.

Air

Temperature53°FObserved

Humidity83%Model

Pressure1011 mbObserved

Wind

SustainedSSW 5 mphObserved

Gusts3 mphModel

Rain chance0%Model

Marine

Wave height4.0 ftModel

DirectionNot Published by NWS

Water61.5°FObservedNOAA North Spit · 7.7 mi Away
Sun & Moon

Sunrise6:17 AM

Sunset8:27 PM

MoonWaning Gibbous

Hourly Forecast
Model
National Weather Service point forecast when the live feed is available.
Local date & timeConditionsTempWindGustsRain
Wed, Aug 5, 20262:00 AMPatchy Smoke59°FS 2 mph3 mph0%
Wed, Aug 5, 20263:00 AMPatchy Smoke59°FS 2 mph3 mph0%
Wed, Aug 5, 20264:00 AMPatchy Smoke58°FS 2 mph3 mph0%
Wed, Aug 5, 20265:00 AMPatchy Smoke58°FSSW 3 mph5 mph0%
Wed, Aug 5, 20266:00 AMPatchy Smoke58°FSSW 3 mph5 mph0%
Wed, Aug 5, 20267:00 AMPatchy Smoke57°FSSW 3 mph5 mph0%
Wed, Aug 5, 20268:00 AMMostly Cloudy58°FWSW 3 mph5 mph0%
Wed, Aug 5, 20269:00 AMMostly Cloudy58°FWSW 3 mph5 mph0%
Wed, Aug 5, 202610:00 AMMostly Cloudy59°FWSW 3 mph5 mph0%
Wed, Aug 5, 202611:00 AMPartly Sunny59°FWSW 6 mph7 mph0%
Wed, Aug 5, 202612:00 PMPartly Sunny58°FWSW 6 mph7 mph0%
Wed, Aug 5, 20261:00 PMPartly Sunny59°FWSW 6 mph7 mph0%

Fishing, Crabbing & Surfing Analysis

Transparent environmental scores based on tide, wind and marine conditions. These are not user reports, catch guarantees or substitutes for official closures and safety guidance.

60/100 · Fair
Surfing
Offshore model guidance with nearshore uncertainty.

Best planning window

Compare swell direction, local wind and tide before leaving

  • Usable offshore swell4.0 ft NWS forecast waves
  • Wave period not publishedThe surf score uses available NWS wave height and local wind only
  • Nearshore uncertaintyOffshore model conditions are not the same as breaking-wave height at this beach
California Department of Fish and Wildlife fishing rulesCalifornia · state or territoryNOAA Fisheries federal recreational fishing resourcesU.S. federal waters · federalNational Weather Service rip-current safetyUnited States · safety
Nearby NOAA Tide Stations
Official station locations from the national NOAA CO-OPS tide-prediction catalog.

Arcata Wharf

NOAA 9418851 · CA

1.9 mi

Samoa

NOAA 9418817 · CA

3.1 mi

Eureka Slough Bridge

NOAA 9418802 · CA

4.0 mi

Eureka

NOAA 9418801 · CA

4.1 mi

Bucksport

NOAA 9418778 · CA

6.5 mi

HUMBOLDT BAY (North Spit)

NOAA 9418767 · CA

7.7 mi

Sources And Confidence

National Weather Service observation and hourly forecastofficial-forecast

Fetched Wed, Aug 5 at 2:22 AM

National Weather Service coastal marine gridofficial-forecast

Fetched Wed, Aug 5 at 2:22 AM

NOAA CO-OPS water temperature at North Spitobserved

Fetched Wed, Aug 5 at 2:22 AM

U.S. Naval Observatory astronomical applicationsofficial-calculation

Fetched Wed, Aug 5 at 2:22 AM

Not for navigation. Conditions can change faster than source update intervals. Always check local warnings, closures and on-site conditions.