Average weather for St. John's in March
It's cold in March in St. John's with an average temperature of 1°C. Temperatures this month range from a low of -2°C to a high of 5°C. At night, you can expect temperatures between -8°C and -2°C.
Start of March
The month of March starts in St. John's with really cold temps, averaging around -0°C during the day and nights dipping to about -6°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
Mid March
By mid-March, daytime temps rise to around 2°C, with nights around -4°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
End of March
By the end of March, the average daytime temperature in St. John's is around 3°C, while nighttime temps are about -3°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days. Wear a heavy winter coat, sweater, long pants, beanie, and gloves.
Water temperature
The water temperature at St. John's is 1°C this month. This is too cold to swim without protective gear.
In March, there is an average of 137 mm of precipitation, spread over 14 days. Of the total precipitation, about 23 cm falls as snow in March. The wind speed is around 5 Bft, mostly coming from the Southwest.
St. John's in March |
New York | ||
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1°C | 11°C | |
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5°C | 14°C | |
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-2°C | -5°C | |
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137 mm | 63 mm | |
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14 days | 10 days | |
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23 cm | 7 cm | |
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12 days | 4 days |
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is March a good time to visit St. John's?
Looking for sun? March isn’t a good month to be in St. John's. There’s too much chance of rain this month.
Temperature records
With 15°C in 2021, St. John's reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was -11°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of -18°C to a highest value of 3°C.
Check out the climate of St. John's for all months and discover the best travel time
Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.
Daily Temperature in March in St. John's
This chart shows the average daily high and low temperatures in March for St. John's, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in March in St. John's
The chart below shows the average daily precipitation in March for St. John's, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for March, you can expect about 14 days of precipitation in St. John's.
Daily Snowfall in March in St. John's
This chart shows the average daily snowfall in March in St. John's, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in March.
Daily UV index in March in St. John's
This chart shows the average daily UV index in March in St. John's, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in March in St. John's over the years
This chart shows the average temperature in March in St. John's, measured in degrees Celsius, over the past few years.
Total precipitation in March in St. John's over the years
This chart shows the average precipitation in March in St. John's, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in March in St. John's per year
This chart shows the average snowfall in March in St. John's, measured in centimeters, over the past few years.
Daily weather in March for St. John's
Click on any day in March to get detailed info about the usual weather on that day in St. John's. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in March in St. John's
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Average weather in St. John's by month
Click on a month below to see detailed weather info for St. John's. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of St. John's for all months at once