Offshore St. Petersburg, FL (144) (42099) — Live Marine Conditions & Buoy Data
NOAA station 42099, Offshore St. Petersburg, FL (144), reports real-time marine conditions from 27.352°N, 84.275°W in the Gulf of Mexico (Florida). 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.
Current conditions at Offshore St. Petersburg, FL (144)
As of October 19, 2026 at 19:26 UTC, Offshore St. Petersburg, FL (144) (42099) is reporting water temperature 83°F and wave height 7.2 ft at an 8-second dominant period.
- Water temperature
- 83°F
- Wave height
- 7.2 ft @ 8 s
Observed October 19, 2026 at 19:26 UTC from NOAA NDBC station 42099. Readings update about every 10 minutes.
What NOAA buoy 42099 measures
As a NOAA meteorological station, 42099 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 Gulf of Mexico
The Gulf’s shallow, broad shelf means seas build and lay down quickly with the wind — short-period chop is the norm rather than long ocean swell. Summer afternoons bring fast-developing thunderstorms, so watch barometric pressure and wind trends closely before heading out.
Frequently asked questions
- What is the water temperature at Offshore St. Petersburg?
- Sea surface temperature at Offshore St. Petersburg was 83°F. Measured October 19, 2026 at 19:26 UTC by NOAA station 42099 (Offshore St. Petersburg, FL (144)). NDBC measures this near the surface, at a depth that varies by station.
- How big are the waves at Offshore St. Petersburg?
- Significant wave height at Offshore St. Petersburg was 7.2 ft, with an 8-second dominant period. Measured October 19, 2026 at 19:26 UTC by NOAA station 42099 (Offshore St. Petersburg, FL (144)). Significant wave height is the average of the highest one-third of waves — individual waves can be larger.
- Which direction are the waves coming from at Offshore St. Petersburg?
- Waves at Offshore St. Petersburg were arriving from 12° true (NNE) at the dominant period. Measured October 19, 2026 at 19:26 UTC by NOAA station 42099 (Offshore St. Petersburg, FL (144)).
- How much wind chop is at Offshore St. Petersburg?
- The wind-wave component at Offshore St. Petersburg had a significant height of 7.2 ft at an 8-second peak period, from the NNE. Measured October 19, 2026 at 19:26 UTC by NOAA station 42099 (Offshore St. Petersburg, FL (144)). Swell and wind-wave heights combine in quadrature, not by addition.
- Is it swell or wind chop at Offshore St. Petersburg?
- NDBC classified the sea state at Offshore St. Petersburg as steep, with a significant wave height of 7.2 ft. Measured October 19, 2026 at 19:26 UTC by NOAA station 42099 (Offshore St. Petersburg, FL (144)). The classification describes wave steepness relative to period, not wave size.
- Where is NOAA buoy 42099 located?
- Offshore St. Petersburg, FL (144) (42099) reports from 27.352°N, 84.275°W in the Gulf of Mexico (Florida).
- How often is NOAA buoy 42099 updated?
- Station 42099 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 42099 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Offshore St. Petersburg, FL (144), plus 7-day tides, solunar peak windows, and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Offshore St. Petersburg, FL (144) 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.