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Weather in Saint John for December 2026

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

    Snow Forecast ❄️

  • Saint John typically experiences moderate snowfall in December, with an average of 6 snowy days.

    • Temperatures

  • In general, the average temperature in Saint John at the beginning of December is 2.2 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 2 °C by the end of December.

    • More

  • Is December a good time to visit Saint John? check out the best time to travel to Saint John page.

  • ✨ Is December a good time to visit Saint John? – Ask the AI Weatherman

Average dry days
18
Dry days
Average rainy days
7
Rainy days
Average snowy days
6
Snow days
Average temperatures
2°/-3°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Saint John Weather December

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

Temperatures trend during December in Saint John

See the weather trend as well as the moving average line

December weather in Saint John day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Moderate rain
Moderate rain
 6° /1° 15.2 mm 0 cm
2 Dec. Light rain
Light rain
 3° /-1° 9.8 mm 4.3 cm
3 Dec. Heavy rain
Heavy rain
 2° /-2° 43.6 mm 0 cm
4 Dec. Light snow
Light snow
 2° /-4° 6.2 mm 4.9 cm
5 Dec. Light snow
Light snow
 1° /-6° 38.3 mm 1.8 cm
6 Dec. Partly cloudy
Partly cloudy
 1° /-7° 0 mm 0 cm
7 Dec. Sunny
Sunny
 0° /-5° 0 mm 0 cm
8 Dec. Moderate snow
Moderate snow
 -1° /-7° 19 mm 9.8 cm
9 Dec. Overcast
Overcast
 1° /-8° 0 mm 0 cm
10 Dec. Moderate rain
Moderate rain
 7° /0° 21.2 mm 7.9 cm
11 Dec. Heavy rain
Heavy rain
 11° /2° 40 mm 0 cm
12 Dec. Moderate rain
Moderate rain
 4° /-2° 22.5 mm 0 cm
13 Dec. Light snow showers
Light snow showers
 1° /-4° 0.1 mm 0.1 cm
14 Dec. Light snow
Light snow
 -1° /-5° 4.7 mm 3.4 cm
15 Dec. Partly cloudy
Partly cloudy
 0° /-5° 0 mm 0 cm
16 Dec. Overcast
Overcast
 1° /-4° 0 mm 0 cm
17 Dec. Moderate rain
Moderate rain
 6° /0° 11.3 mm 0 cm
18 Dec. Moderate rain
Moderate rain
 8° /2° 11.4 mm 0 cm
19 Dec. Heavy rain
Heavy rain
 8° /2° 36.4 mm 0 cm
20 Dec. Light rain
Light rain
 3° /-3° 9.2 mm 0 cm
21 Dec. Light snow
Light snow
 1° /-3° 6.4 mm 3 cm
22 Dec. Partly cloudy
Partly cloudy
 -4° /-8° 0 mm 0 cm
23 Dec. Overcast
Overcast
 -2° /-8° 0 mm 0 cm
24 Dec. Heavy snow
Heavy snow
 1° /-3° 23.9 mm 16.3 cm
25 Dec. Light rain
Light rain
 1° /-3° 6 mm 4.3 cm
26 Dec. Patchy rain possible
Patchy rain possible
 1° /-3° 0 mm 0 cm
27 Dec. Light drizzle
Light drizzle
 1° /-5° 1.4 mm 0 cm
28 Dec. Light snow
Light snow
 1° /-5° 1.7 mm 0 cm
29 Dec. Light snow
Light snow
 3° /-2° 21.4 mm 2 cm
30 Dec. Light sleet
Light sleet
 5° /-2° 23.1 mm 0 cm
31 Dec. Patchy rain possible
Patchy rain possible
 1° /-3° 2 mm 0 cm
Next
Important Notice
Our weather forecast for Saint John in December 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 December - FAQ

What are the expected maximum and minimum temperatures in Saint John during December?
Brace for cold days with temperatures not exceeding 2° 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 December?
Significant rainfall exceeding 374.9 mm is expected in Saint John during December, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Saint John in December 2026?
Saint John experiences an average snowfall of 57.9 cm during December, occurring over 6 days.

What are the typical wind conditions in Saint John during December?
The average wind speed in Saint John during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Saint John snow forecast December 2026

Track daily snowfall levels and discover Saint John’s snowy potential this December ❄️
On average, Saint John sees 6 snowy days during December, with approximately 57.9 cm of total snowfall.

December rainfall patterns in Saint John

Explore the daily rainfall trends and prepare for Saint Johns December weather 💧
Typically, Saint John has 7 rainy days in December with a total of 374.9 mm of rainfall.
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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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