Saint John Weather in March

March in Saint John brings low temperatures, with highs of 3°C (37°F) and nights dropping to -4°C (25°F). Rainfall is on the higher side this month, averaging around 116 mm (4.6 in), so keep a rain jacket handy.

Rainfall in Saint John in March

You can expect snow/rain on roughly 13 days based on historical data, averaging 116 mm (4.6 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Saint John in March

Daytime highs in Saint John in March reach 3°C (37°F), with nights around -4°C (25°F). Cold conditions tend to persist from morning through evening, so be prepared for winter weather. With overnight lows of -4°C (25°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold. With temperatures this low, you'll need to dress warmly. Staying prepared is crucial to avoid the discomfort of the cold.

If you prefer dry days with pleasant temperatures, March may not be the ideal month to visit Saint John. Our weather planner can help you explore destinations with more pleasant weather conditions.