Saint John weather
Our guide to the weather in Saint John during March
We've looked at the most up-to-date weather data for Saint John, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Saint John weather in March.
How warm is it in Saint John during March?
March is typically the coolest month in Saint John, although we use the term cool in a relative sense! Expect heat, with the temperature hitting about 26℃ during the day, falling away to a balmy 25℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Saint John during March?
On average, there will be 3 rainy days during the month, amounting to 82.5mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. You're not likely to see a thunderstorm during your trip.
Is it windy in Saint John during March?
Expect moderate breeze becoming stronger at times during March, with occasional gusts up to 20mph. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
Weather in Saint John
Our month-by-month guide to the weather and climate in Saint John
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