Mason bay, Stewart Island Wind forecast

Weather Conditions Alerts for

19.03.2026 (Thursday)

Strong swell – dangerous for diving/exiting (2.5 m)
Optimal swell period (8.2 s)
Low water temperature – risk of hypothermia (14.8 °C)
No strong wind – comfortable for diving (avg 2.4 m/s)
Air temperature too low (avg 10.3 °C)
Optimal current speed (0.5 kts)
Low tides – preparation required (1.0 m, LAT)

20.03.2026 (Friday)

Significant swell – experience required (1.9 m)
Optimal swell period (9.1 s)
Low water temperature – risk of hypothermia (14.9 °C)
No strong wind – comfortable for diving (avg 1.8 m/s)
Air temperature too low (avg 12.5 °C)
Optimal current speed (0.4 kts)
Low tides – preparation required (1.0 m, LAT)

21.03.2026 (Saturday)

Significant swell – experience required (2.0 m)
Optimal swell period (10.3 s)
Low water temperature – risk of hypothermia (14.9 °C)
No strong wind – comfortable for diving (avg 4.0 m/s)
Air temperature too low (avg 13.1 °C)
Optimal current speed (0.4 kts)
Low tides – preparation required (1.0 m, LAT)

22.03.2026 (Sunday)

Strong swell – dangerous for diving/exiting (2.1 m)
Optimal swell period (10.4 s)
Low water temperature – risk of hypothermia (14.9 °C)
No strong wind – comfortable for diving (avg 3.4 m/s)
Air temperature too low (avg 11.7 °C)
Optimal current speed (0.4 kts)
Low tides – preparation required (1.0 m, LAT)

23.03.2026 (Monday)

Strong swell – dangerous for diving/exiting (2.1 m)
Optimal swell period (10.3 s)
Low water temperature – risk of hypothermia (15.0 °C)
No strong wind – comfortable for diving (avg 3.2 m/s)
Air temperature too low (avg 11.7 °C)
Optimal current speed (0.4 kts)
Low tides – preparation required (0.9 m, LAT)

24.03.2026 (Tuesday)

Strong swell – dangerous for diving/exiting (2.3 m)
Optimal swell period (9.4 s)
Low water temperature – risk of hypothermia (15.0 °C)
No strong wind – comfortable for diving (avg 4.3 m/s)
Air temperature too low (avg 11.9 °C)
Optimal current speed (0.3 kts)
Low tides – preparation required (0.8 m, LAT)

Live wind map

Wind direction is West, wind speed varies between 0 and 8.9 mph with gusts up to 17.8 mph. The sky is clear with a chance of rain 0%.
Wind and wave weather forecast for Mason bay , New Zealand contains detailed information about local wind speed, direction, and gusts. Wave forecast includes wave height and period.
These forecasts for Mason bay are based on the GFS model and were created for windsurfing, kitesurfing, sailing and other extreme sports activities. All data updates 4 times a day. Predictions are available in steps from 1 to 3 hours for up to 10 days.
Use professional weather parameters: wind barbs, weather fronts, isobars, and others. Study weather history for the past 14 years (2012-2026). Create sailing, hiking and biking routes with weather in each point.
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