Grand Manan - Marine Weather - Environment Canada Environment Canada https://www.weather.gc.ca 2026-03-09T07:51:20Z tag:weather.gc.ca,2013-04-16:20260309075120 https://www.weather.gc.ca/template/gcweb/v15.0.0/assets/wmms-alt.png https://www.weather.gc.ca/template/gcweb/v15.0.0/assets/favicon.ico Copyright 2026, Environment Canada Forecast for Today Tonight and Tuesday. - Grand Manan 2026-03-09T06:00:00Z 2026-03-09T06:00:00Z Wind westerly 20 knots backing to southwest 15 early this morning then increasing to southwest 20 to 25 early this evening. Wind diminishing to southwest 15 Tuesday morning and to light near noon Tuesday. Wind becoming southwest 15 Tuesday evening. Fog patches forming this morning and dissipating near midnight. Fog patches reforming Tuesday evening. <br/>Issued 03:00 AM ADT 09 March 2026 tag:weather.gc.ca,2013-04-16:05600_regular_forecast:20260309060000 Waves for Today Tonight and Tuesday. - Grand Manan 2026-03-09T08:00:00Z 2026-03-09T08:00:00Z Seas 1 to 2 metres subsiding to 1 or less Tuesday afternoon.<br/>Issued 05:00 AM ADT 09 March 2026 tag:weather.gc.ca,2013-04-16:05600_waves:20260309080000 Extended Forecast - Grand Manan 2026-03-09T06:00:00Z 2026-03-09T06:00:00Z Wednesday: Wind northeast 25 to 30 knots.<br/>Thursday: Wind southwest 35 knots diminishing to southwest 25 late in the day.<br/>Friday: Wind west 35 knots diminishing to southwest 25.<br/>Issued 03:00 AM ADT 09 March 2026 tag:weather.gc.ca,2013-04-16:05600_extended_forecast:20260309060000