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Weather in Saint John for March 2026

Your guide to Saint John weather in March - trends and predictions

    Official Weather Alert ⚠️

  • Weather Warning - See hour by hour.

    • Snow Forecast ❄️

  • Expect heavy snowfall in Saint John during March, with an average of 16 snowy days.
    According to Saint John snow forecast for March 2026, 3 snowy days are expected until the end of the month. The closest date with snow is Thursday, 19 March.

    • Temperatures

  • Until now, March 2026 in Saint John is slightly cooler than the historical average by -0.9 °C.

  • The forecast for the next days in Saint John predicts temperatures to be around 3 °C, close to the historical average.

  • In general, the average temperature in Saint John at the beginning of March is 2.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 4.6 °C by the end of March.

    • More

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Average dry days
5
Dry days
Average rainy days
10
Rainy days
Average snowy days
16
Snow days
Average temperatures
4°/-2°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Saint John Weather March

Move between months or click on a day
February
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate or heavy snow showers
1°
2
Overcast
1°
3
Overcast
2°
4
Overcast
3°
5
Overcast
4°
6
Moderate or heavy snow showers
4°
7
Overcast
4°
8
Overcast
1°
9
Partly cloudy
4°
10
Overcast
3°
11
Overcast
4°
12
Partly cloudy
5°
13
Overcast
3°
14
Overcast
4°
15
Weather Alert Partly cloudy
4°
16
Weather Alert Heavy rain
7°
17
Heavy rain
10°
18
Partly cloudy
-1°
19
Partly cloudy
1°
20
Patchy moderate snow
4°
21
Overcast
2°
22
Sunny
0°
23
Partly cloudy
-3°
24
Partly cloudy
3°
25
Partly cloudy
4°
26
Partly cloudy
5°
27
Partly cloudy
4°
28
Sunny
7°
29
Moderate or heavy snow showers
4°
30
Heavy snow
3°
31
Overcast
5°

Temperatures trend during March in Saint John

See the weather trend as well as the moving average line

March weather in Saint John day by day

Click on a date for more information
February April
Date Weather Temperatures Rain Snow More
1 Mar. Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-7° 11.1 mm 1.9 cm
2 Mar. Overcast
Overcast
 1° /-8° 1.2 mm 0.1 cm
3 Mar. Overcast
Overcast
 2° /-7° 1.3 mm 0 cm
4 Mar. Overcast
Overcast
 3° /-5° 6.1 mm 4.3 cm
5 Mar. Overcast
Overcast
 4° /-4° 12.1 mm 1.8 cm
6 Mar. Moderate or heavy snow showers
Moderate or heavy snow showers
 4° /-1° 47.7 mm 0 cm
7 Mar. Overcast
Overcast
 4° /-4° 29.4 mm 0.6 cm
8 Mar. Overcast
Overcast
 1° /-2° 6.3 mm 0 cm
9 Mar. Partly cloudy
Partly cloudy
 4° /-4° 0 mm 0 cm
10 Mar. Overcast
Overcast
 3° /-2° 3.8 mm 0 cm
11 Mar. Overcast
Overcast
 4° /-2° 4.9 mm 2.5 cm
12 Mar. Partly cloudy
Partly cloudy
 5° /-2° 10.3 mm 0.4 cm
13 Mar. Overcast
Overcast
 3° /-3° 0 mm 0 cm
14 Mar. Overcast
Overcast
 4° /-1° 12.6 mm 4.9 cm
15 Mar. Partly cloudy
Partly cloudy
 4° /-3° 0 mm 0 cm
16 Mar. Heavy rain
Heavy rain
 7° /0° 90.3 mm 0 cm
17 Mar. Heavy rain
Heavy rain
 10° /-2° 171.2 mm 0 cm
18 Mar. Partly cloudy
Partly cloudy
 -1° /-7° 0 mm 0 cm
19 Mar. Partly cloudy
Partly cloudy
 1° /-6° 0.1 mm 0.1 cm
20 Mar. Patchy moderate snow
Patchy moderate snow
 4° /-2° 1 mm 0 cm
21 Mar. Overcast
Overcast
 2° /-2° 0.1 mm 0.1 cm
22 Mar. Sunny
Sunny
 0° /-6° 0 mm 0 cm
23 Mar. Partly cloudy
Partly cloudy
 -3° /-7° 0 mm 0 cm
24 Mar. Partly cloudy
Partly cloudy
 3° /-8° 0 mm 0 cm
25 Mar. Partly cloudy
Partly cloudy
 4° /-4° 0 mm 0 cm
26 Mar. Partly cloudy
Partly cloudy
 5° /-3° 0 mm 0 cm
27 Mar. Partly cloudy
Partly cloudy
 4° /-3° 0 mm 0 cm
28 Mar. Sunny
Sunny
 7° /-3° 0 mm 0 cm
29 Mar. Moderate or heavy snow showers
Moderate or heavy snow showers
 4° /-1° 14.6 mm 0.1 cm
30 Mar. Heavy snow
Heavy snow
 3° /-3° 11.2 mm 6.7 cm
31 Mar. Overcast
Overcast
 5° /-3° 16.3 mm 2.6 cm
Next
Important Notice
Our weather forecast for Saint John in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint John forecast closer to your planned date for the most up-to-date weather information.
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Saint John in March - FAQ

What are the expected maximum and minimum temperatures in Saint John during March?

Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Saint John during March?

Significant rainfall exceeding 336.9 mm is expected in Saint John during March, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Saint John in March 2026?

Saint John experiences an average snowfall of 33.3333 cm during March, occurring over 16 days.

What are the typical wind conditions in Saint John during March?

The average wind speed in Saint John during March is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Saint John snow forecast March 2026

Track daily snowfall levels and discover Saint John’s snowy potential this March ❄️
On average, Saint John sees 16 snowy days during March, with approximately 33.3 cm of total snowfall.

March rainfall patterns in Saint John

Explore the daily rainfall trends and prepare for Saint Johns March weather 💧
Typically, Saint John has 10 rainy days in March with a total of 336.9 mm of rainfall.

Quick links

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Location coordinates Where is Saint John?

Get accurate weather forecasts for Saint John, located at latitude 45.271 and longitude -66.056. Stay updated with localized weather information tailored for Saint John.

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