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Canada weather

Weather in St. John's for December 2025

Your guide to St. John's weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Weather Warning - See hour by hour.

    • Snow Forecast ❄️

  • The climate of St. John's in December is quite snowy, averaging 11 snowy days.
    According to St. John's snow forecast for December 2025, 8 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, 14 December.

    • Temperatures

  • Until now, December 2025 in St. John's is slightly cooler than the historical average by -0.8 °C.

  • Expect cooler weather in the next days in St. John's with the forecast suggesting a temperature of 0.8 °C, lower than the historical average.

  • In general, the average temperature in St. John's at the beginning of December is 3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -1.4 °C by the end of December.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
12
Dry days
Average rainy days
8
Rainy days
Average snowy days
11
Snow days
Average temperatures
3°/0°
Temperatures
Average wind speed
35 km/h
Avg max wind
Average humidity
78 %
Avg humidity

St. John's Weather December

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

Temperatures trend during December in St. John's

See the weather trend as well as the moving average line

December weather in St. John's day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 6° /0° 3.8 mm 0 cm
2 Dec. Patchy rain possible
Patchy rain possible
 6° /1° 0.3 mm 0 cm
3 Dec. Light snow
Light snow
 2° /0° 11.3 mm 0.7 cm
4 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-1° 1.6 mm 0.8 cm
5 Dec. Light snow
Light snow
 3° /-2° 3 mm 0.6 cm
6 Dec. Heavy snow
Heavy snow
 2° /-2° 6.2 mm 0.2 cm
7 Dec. Light snow showers
Light snow showers
 1° /-3° 0.9 mm 0.4 cm
8 Dec. Light snow
Light snow
 1° /-3° 5.9 mm 1.2 cm
9 Dec. Moderate snow
Moderate snow
 2° /-2° 7.1 mm 1.5 cm
10 Dec. Overcast
Overcast
 2° /-2° 0.1 mm 0 cm
11 Dec. Light drizzle
Light drizzle
 8° /0° 8.9 mm 0 cm
12 Dec. Light rain
Light rain
 9° /2° 2.2 mm 0 cm
13 Dec. Blowing snow
Blowing snow
 6° /0° 1 mm 0 cm
14 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-1° 4 mm 0.3 cm
15 Dec. Moderate rain
Moderate rain
 8° /-2° 14 mm 0 cm
16 Dec. Moderate snow
Moderate snow
 -1° /-3° 1.3 mm 0 cm
17 Dec. Moderate snow
Moderate snow
 0° /-5° 0.8 mm 0.5 cm
18 Dec. Patchy rain possible
Patchy rain possible
 8° /-2° 0.3 mm 0 cm
19 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-2° 3 mm 0 cm
20 Dec. Patchy rain possible
Patchy rain possible
 3° /0° 4.1 mm 0 cm
21 Dec. Heavy snow
Heavy snow
 0° /-4° 3.7 mm 1.7 cm
22 Dec. Patchy rain possible
Patchy rain possible
 5° /-2° 1.7 mm 0.2 cm
23 Dec. Blowing snow
Blowing snow
 -3° /-7° 0.7 mm 0.4 cm
24 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 4° /-6° 2 mm 0 cm
25 Dec. Blowing snow
Blowing snow
 -7° /-10° 1.1 mm 0 cm
26 Dec. Partly cloudy
Partly cloudy
 -4° /-7° 0 mm 0 cm
27 Dec. Moderate snow
Moderate snow
 -4° /-6° 1.3 mm 1 cm
28 Dec. Heavy snow
Heavy snow
 1° /0° 1.2 mm 0.7 cm
29 Dec. Partly cloudy
Partly cloudy
 1° /-2° 0.3 mm 0 cm
30 Dec. Moderate snow
Moderate snow
 1° /0° 3.3 mm 1.4 cm
31 Dec. Heavy snow
Heavy snow
 2° /0° 2.4 mm 2 cm
Next
Important Notice
Our weather forecast for St. John's 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 St. John's forecast closer to your planned date for the most up-to-date weather information.
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St. John's in December - FAQ

What are the expected maximum and minimum temperatures in St. John's during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in St. John's during December?
Moderate rainfall is anticipated in St. John's during December, with a total of 76 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
Will it snow in St. John's in December 2025?
St. John's experiences an average snowfall of 11.295 cm during December, occurring over 11 days.
What are the typical wind conditions in St. John's during December?
The average wind speed in St. John's during December is 35 km/h, suggesting breezy to windy conditions, depending on your activities.

St. John's snow forecast December 2025

Track daily snowfall levels and discover St. John's’s snowy potential this December ❄️
On average, St. John's sees 11 snowy days during December, with approximately 11.3 cm of total snowfall.

December rainfall patterns in St. John's

Explore the daily rainfall trends and prepare for St. John'ss December weather 💧
Typically, St. John's has 8 rainy days in December with a total of 76 mm of rainfall.

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Location coordinates Where is St. John's?

Get accurate weather forecasts for St. John's, located at latitude 47.565 and longitude -52.709. Stay updated with localized weather information tailored for St. John's.

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