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Weather in Nanaimo for December 2025

Your guide to Nanaimo weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Rainfall Warning - See hour by hour.

    • Snow Forecast ❄️

  • Snowfall in Nanaimo during December is quite rare, with fewer than 2 snowy days on average.
    According to Nanaimo snow forecast for December 2025, 7 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, 21 December.

    • Temperatures

  • So far, December 2025 in Nanaimo is slightly warmer than the historical average by 0.6 °C.

  • The forecast for the next days in Nanaimo predicts a temperature of 2 °C, which is cooler than the historical average.

  • In general, the average temperature in Nanaimo at the beginning of December is 7.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 0.6 °C by the end of December.

    • Rain 🌧️

  • Nanaimo experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 334.4 mm.

    • More

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

Average dry days
3
Dry days
Average rainy days
27
Rainy days
Average snowy days
1
Snow days
Average temperatures
7°/3°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
91 %
Avg humidity

Nanaimo Weather December

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

Temperatures trend during December in Nanaimo

See the weather trend as well as the moving average line

December weather in Nanaimo day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Fog
Fog
 6° /2° 5.3 mm 0 cm
2 Dec. Patchy rain possible
Patchy rain possible
 6° /2° 5.1 mm 0 cm
3 Dec. Fog
Fog
 7° /1° 4.6 mm 0 cm
4 Dec. Moderate rain
Moderate rain
 7° /3° 28.3 mm 0 cm
5 Dec. Patchy rain possible
Patchy rain possible
 9° /4° 5 mm 0 cm
6 Dec. Fog
Fog
 9° /5° 2.3 mm 0 cm
7 Dec. Fog
Fog
 9° /3° 4.4 mm 0 cm
8 Dec. Patchy rain possible
Patchy rain possible
 8° /3° 11.6 mm 0 cm
9 Dec. Heavy snow
Heavy snow
 6° /2° 12.1 mm 2.9 cm
10 Dec. Light rain
Light rain
 7° /3° 8.3 mm 0 cm
11 Dec. Mist
Mist
 7° /3° 0.8 mm 0 cm
12 Dec. Patchy rain possible
Patchy rain possible
 6° /3° 6 mm 0 cm
13 Dec. Light drizzle
Light drizzle
 7° /4° 9.5 mm 0 cm
14 Dec. Moderate rain
Moderate rain
 11° /7° 16.4 mm 0 cm
15 Dec. Moderate rain
Moderate rain
 14° /7° 15.7 mm 0 cm
16 Dec. Heavy rain
Heavy rain
 10° /6° 32.7 mm 0 cm
17 Dec. Moderate rain
Moderate rain
 6° /3° 5.8 mm 0 cm
18 Dec. Moderate rain
Moderate rain
 3° /1° 18.8 mm 0 cm
19 Dec. Overcast
Overcast
 5° /1° 0 mm 0 cm
20 Dec. Patchy rain possible
Patchy rain possible
 6° /2° 2.5 mm 0 cm
21 Dec. Light freezing rain
Light freezing rain
 3° /-2° 0.3 mm 0.2 cm
22 Dec. Moderate snow
Moderate snow
 -1° /-4° 1.3 mm 0.9 cm
23 Dec. Heavy snow
Heavy snow
 -1° /-4° 10.5 mm 7.6 cm
24 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 -7° /-11° 2.1 mm 1.6 cm
25 Dec. Light snow
Light snow
 -10° /-15° 0.2 mm 0.1 cm
26 Dec. Partly cloudy
Partly cloudy
 -8° /-15° 0.1 mm 0 cm
27 Dec. Heavy snow
Heavy snow
 -3° /-12° 9.2 mm 6.7 cm
28 Dec. Light rain
Light rain
 8° /4° 14.2 mm 0 cm
29 Dec. Light drizzle
Light drizzle
 6° /3° 7 mm 0 cm
30 Dec. Light rain
Light rain
 6° /3° 2.8 mm 0 cm
31 Dec. Patchy rain possible
Patchy rain possible
 5° /2° 0.1 mm 0 cm
Next
Important Notice
Our weather forecast for Nanaimo 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 Nanaimo forecast closer to your planned date for the most up-to-date weather information.
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Nanaimo in December - FAQ

What are the expected maximum and minimum temperatures in Nanaimo during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 3°.
How much rainfall should be expected in Nanaimo during December?
Significant rainfall exceeding 334.4 mm is expected in Nanaimo during December, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Nanaimo in December 2025?
Nanaimo typically sees 4.4 cm of snowfall during December.
What are the typical wind conditions in Nanaimo during December?
The average wind speed in Nanaimo during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

Nanaimo snow forecast December 2025

Track daily snowfall levels and discover Nanaimo’s snowy potential this December ❄️
On average, Nanaimo sees 1 snowy days during December, with approximately 4.4 cm of total snowfall.

December rainfall patterns in Nanaimo

Explore the daily rainfall trends and prepare for Nanaimos December weather 💧
Typically, Nanaimo has 27 rainy days in December with a total of 334.4 mm of rainfall.

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Get accurate weather forecasts for Nanaimo, located at latitude 49.166 and longitude -123.94. Stay updated with localized weather information tailored for Nanaimo.

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