Port conditions
Tide times, wind, waves and water temperature near a port, from the nearest NOAA weather buoys and tide stations.
Information only — not for navigation. Never use these results to plan or conduct a passage.
Conditions near Harbor Island, from 4 NOAA stations within 100 km.
Tides at Port Aransas, TX (3 km away)
Predicted times and heights of high and low water, in metres above mean lower low water (MLLW). Predictions, not measurements.
| Time (UTC) | Tide | Height |
|---|---|---|
| Oct 5, 2026, 22:54 | Low | 0.16 m |
| Oct 6, 2026, 09:46 | High | 0.47 m |
| Oct 6, 2026, 13:21 | Low | 0.44 m |
| Oct 6, 2026, 15:46 | High | 0.45 m |
| Oct 7, 2026, 00:09 | Low | 0.19 m |
| Oct 7, 2026, 09:33 | High | 0.42 m |
| Oct 7, 2026, 13:20 | Low | 0.39 m |
| Oct 7, 2026, 17:27 | High | 0.45 m |
Weather buoys
- Wind
- —
- Gusts
- —
- Waves
- —
- Water
- —
- Air
- 30.3 °C
- Pressure
- 1,013.8 hPa
- Wind
- 12.1 kn from 360°
- Gusts
- 15 kn
- Waves
- —
- Water
- 28.9 °C
- Air
- 27.6 °C
- Pressure
- 1,014.1 hPa
Last 24 hours: wind 8–19 kn.
- Wind
- —
- Gusts
- —
- Waves
- —
- Water
- —
- Air
- 28.3 °C
- Pressure
- 1,012.5 hPa
Source: NOAA National Data Buoy Center and NOAA CO-OPS Tides & Currents, US public domain.
Batch runs
Conditions at many ports at once?
Pro runs this tool for every row of a CSV or a watchlist, up to 500 rows at a time, in the Voydar Terminal, and downloads the answers as CSV. Single runs here stay free. Try Pro free for 14 days, once, no card needed.
How this works
- Stations: NOAA National Data Buoy Center buoys and CO-OPS tide stations within 100 km of the port's position, nearest first.
- Readings: the buoys' own reports, refreshed twice an hour, in the units NOAA publishes (wind converted from m/s to knots).
- Tides: NOAA's high/low predictions for the nearest tide station, refreshed daily, 8 days ahead. Local effects and weather can move the real tide by a lot.