March weather forecast
Saint John, Canada

Weather in March

The first month of the spring, March, is a cold month in Saint John, Canada, with an average temperature fluctuating between -4.3°C (24.3°F) and 1.6°C (34.9°F).

Temperature

In Saint John, the average high-temperature in March slightly increases from a subzero cold -1.5°C (29.3°F) in February to a wintry 1.6°C (34.9°F). In Saint John, in March, the average low-temperature is -4.3°C (24.3°F).

Humidity

The average relative humidity in March is 82%.

Rainfall

In Saint John, in March, it is raining for 8.9 days, with typically 26mm (1.02") of accumulated precipitation. In Saint John, during the entire year, the rain falls for 122.4 days and collects up to 390mm (15.35") of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Saint John, during March, snow falls for 9.6 days and regularly aggregates up to 33mm (1.3") of snow. Throughout the year, there are 37.1 snowfall days, and 188mm (7.4") of snow is accumulated.

Sea temperature

March is the month with the coldest seawater in Saint John, with an average sea temperature of 2.9°C (37.2°F).
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In Saint John, the average length of the day in March is 11h and 57min.
On the first day of March in Saint John, sunrise is at 7:01 am and sunset at 6:11 pm AST. On the last day of the month, sunrise is at 7:05 am and sunset at 7:50 pm ADT.
Note: On Sunday, 13. March 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AST to ADT. Daylight Saving Time lasts until Sunday, 06. November 2022, at 2:00 am; consequently, the time zone reverts from ADT to AST.

Sunshine

In March, the average sunshine is 4.8h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In March, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the temperature in March in Saint John?

The average high-temperature, in March, in Saint John, Canada, is 1.6°C (34.9°F), while the average low-temperature is -4.3°C (24.3°F).

What is the average humidity in March in Saint John?

In March, the average relative humidity is 82%.

How many days does it rain in March in Saint John?

In Saint John, in March, during 8.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated.

How many days does it snow in March in Saint John?

In March, in Saint John, Canada, it is snowing for 9.6 days. Throughout March, 33mm (1.3") of snow is accumulated.

What month is the sea coldest in Saint John?

March is the month with the coldest seawater, with an average sea temperature of 2.9°C (37.2°F).

How cold is the water in March in Saint John?

In March, the average sea temperature in Saint John is 2.9°C (37.2°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the average length of the day in March in Saint John?

In March, the average day length in Saint John, Canada, is 11h and 57min.

When is the sunrise / sunset in March in Saint John?

In March, on the first day of the month, sunrise is at 7:01 am and sunset at 6:11 pm AST. On the last day of the month, sunrise is at 7:05 am and sunset at 7:50 pm ADT.

When does Daylight Saving Time (DST) start in March in Saint John?

On Sunday, 13. March 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from AST to ADT. DST ends on Sunday, 06. November 2022, at 2:00 am.

How many hours of sunshine does Saint John have in March?

In Saint John, Canada, the average sunshine duration in March is 4.8h.

When is the lowest UV index in Saint John?

The months with the lowest UV index in Saint John are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in March in Saint John?

In March, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Saint John, Canada

Average temperature in March - Saint John, Canada
  • Average high temperature in March: 1.6°C

The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (-1.9°C).

  • Average low temperature in March: -4.3°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).

[Resources]

Average pressure in March
Saint John, Canada

Average pressure in March - Saint John, Canada
  • Average pressure in March: 1015.3mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

[Resources]

Average wind speed in March
Saint John, Canada

Average wind speed in March - Saint John, Canada
  • Average wind speed in March: 19.2km/h

The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).

[Resources]

Average humidity in March
Saint John, Canada

Average humidity in March - Saint John, Canada
  • Average humidity in March: 82%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are October and November (80%).

[Resources]

Average rainfall in March
Saint John, Canada

Average rainfall in March - Saint John, Canada
  • Average rainfall in March: 26mm

The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (22mm).

[Resources]

Average rainfall days in March
Saint John, Canada

Average rainfall days in March - Saint John, Canada
  • Average rainfall days in March: 8.9 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (5.4 days).

[Resources]

Average snowfall in March
Saint John, Canada

Average snowfall in March - Saint John, Canada
  • Average snowfall in March: 33mm

The month with the highest snowfall is January (40mm).
The months with the least snowfall are June, July, August, September and October (0mm).

[Resources]

Average snowfall days in March
Saint John, Canada

Average snowfall days in March - Saint John, Canada
  • Average snowfall days in March: 9.6 days

The month with the highest number of snowfall days is March (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

[Resources]

Average sea temperature in March
Saint John, Canada

Average sea temperature in March - Saint John, Canada
  • Average sea temperature in March: 2.9°C

The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (2.9°C).

[Resources]

Average daylight in March /
Average sunshine in March
Saint John, Canada

Average daylight in March / Average sunshine in March - Saint John, Canada
  • Average daylight in March: 11h and 57min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

  • Average sunshine in March: 4h and 48min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in March
Saint John, Canada

Average sunshine days in March - Saint John, Canada
  • Average sunshine days in March: 15.2 days

The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (11.8 days).

[Resources]

Average UV index in March
Saint John, Canada

Average UV index in March - Saint John, Canada
  • Average UV index in March: 2

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

[Resources]

Average cloud cover in March
Saint John, Canada

Average cloud cover in March - Saint John, Canada
  • Average cloud cover in March: 60

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).

[Resources]

Average visibility in March
Saint John, Canada

Average visibility in March - Saint John, Canada
  • Average visibility in March: 9km

The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location