SAN FRANCISCO - 18NM West of San Francisco, CA (46026) — Live Marine Conditions & Buoy Data
NOAA station 46026, SAN FRANCISCO - 18NM West of San Francisco, CA, reports real-time marine conditions from 37.750°N, 122.838°W in the eastern North Pacific (California). Readings refresh roughly every 10 minutes, and Big Buoy adds 7-day tide predictions, a solunar table, and a multi-day weather outlook for the area.
San Francisco Bay Marine Conditions — SAN FRANCISCO - 18NM West of San Francisco, CA is one of several stations in San Francisco Bay. See live tides, buoy data, and solunar for the whole area.
Current conditions at SAN FRANCISCO - 18NM West of San Francisco, CA
As of August 21, 2026 at 18:40 UTC, SAN FRANCISCO - 18NM West of San Francisco, CA (46026) is reporting water temperature 58°F, wave height 3.3 ft at an 11-second dominant period, wind from the NW at 16 mph gusting 18 mph, and barometric pressure 30.08 inHg.
- Water temperature
- 58°F
- Wave height
- 3.3 ft @ 11 s
- Wind
- NW 16 mph (gust 18)
- Barometric pressure
- 30.08 inHg
Observed August 21, 2026 at 18:40 UTC from NOAA NDBC station 46026. Readings update about every 10 minutes.
What NOAA buoy 46026 measures
As a NOAA meteorological station, 46026 reports wind speed, gusts and direction, barometric pressure, air and water temperature, and — where wave sensors are fitted — significant wave height, swell period, and wave direction.
What to watch in the eastern North Pacific
The U.S. Pacific coast is dominated by long-period groundswell and strong seasonal upwelling that keeps nearshore water cold. Watch swell period as closely as wave height — a long-period west swell can make harbor entrances and bar crossings hazardous even when the wave height looks modest.
Frequently asked questions
- Where is NOAA buoy 46026 located?
- SAN FRANCISCO - 18NM West of San Francisco, CA (46026) reports from 37.750°N, 122.838°W in the eastern North Pacific (California).
- How often is NOAA buoy 46026 updated?
- Station 46026 typically reports new observations about every 10 minutes. Big Buoy refreshes continuously so you always see the latest readings, alongside 7-day tide predictions and a solunar table for the area.
- What does NOAA buoy 46026 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for SAN FRANCISCO - 18NM West of San Francisco, CA, plus 7-day tides, solunar peak windows, and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for SAN FRANCISCO - 18NM West of San Francisco, CA and every other NOAA buoy is free with no account required. Big Buoy Pro adds the Wind Tab, the Depth Chart, satellite overlays (sea surface temp, chlorophyll, currents), 16-day forecasts, and forecast model switching.