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New Zealand weather

Weather in Nelson for December 2025

Your guide to Nelson weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Nelson has been nearly identical to the historical average, with a temperature of 19.9 °C (showing only a slight deviation of -0.1 °C).

  • Expect cooler weather in the next days in Nelson with the forecast suggesting a temperature of 18.9 °C, lower than the historical average.

  • In general, the average temperature in Nelson at the beginning of December is 19.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21.7 °C by the end of December.

    • Rain 🌧️

  • Nelson in December brings notable rainfall, with an average of 18 rainy days and a total precipitation of 72.2 mm.

Average dry days
13
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/10°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Nelson Weather December

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

Temperatures trend during December in Nelson

See the weather trend as well as the moving average line

December weather in Nelson day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Patchy rain possible
Patchy rain possible
 18° /8° 0 mm 7
2 Dec. Light drizzle
Light drizzle
 18° /8° 0.8 mm 7
3 Dec. Light rain shower
Light rain shower
 17° /9° 6.3 mm 6
4 Dec. Sunny
Sunny
 20° /10° 0.9 mm 7
5 Dec. Cloudy
Cloudy
 22° /8° 0.1 mm 7
6 Dec. Sunny
Sunny
 20° /9° 0 mm 7
7 Dec. Partly cloudy
Partly cloudy
 22° /9° 0 mm 8
8 Dec. Light rain shower
Light rain shower
 20° /9° 3.1 mm 6
9 Dec. Sunny
Sunny
 22° /8° 0.1 mm 8
10 Dec. Light drizzle
Light drizzle
 22° /8° 2 mm 7
11 Dec. Overcast
Overcast
 19° /7° 0 mm 6
12 Dec. Patchy rain possible
Patchy rain possible
 19° /7° 0 mm 6
13 Dec. Cloudy
Cloudy
 20° /6° 0 mm 7
14 Dec. Sunny
Sunny
 21° /8° 0 mm 7
15 Dec. Partly cloudy
Partly cloudy
 22° /9° 0 mm 7
16 Dec. Moderate rain
Moderate rain
 19° /8° 18.8 mm 1.5
17 Dec. Patchy rain possible
Patchy rain possible
 17° /5° 1.1 mm 2.3
18 Dec. Patchy rain possible
Patchy rain possible
 17° /8° 0.2 mm 2.7
19 Dec. Patchy rain possible
Patchy rain possible
 19° /10° 1.1 mm 1.5
20 Dec. Patchy rain possible
Patchy rain possible
 16° /7° 0.6 mm 0
21 Dec. Patchy rain possible
Patchy rain possible
 14° /4° 1.1 mm 5
22 Dec. Patchy rain possible
Patchy rain possible
 17° /8° 0.1 mm 6
23 Dec. Sunny
Sunny
 19° /7° 0 mm 7
24 Dec. Cloudy
Cloudy
 18° /8° 0 mm 6
25 Dec. Patchy rain possible
Patchy rain possible
 20° /13° 0.2 mm 7
26 Dec. Sunny
Sunny
 21° /13° 0 mm 8
27 Dec. Sunny
Sunny
 22° /12° 0 mm 8
28 Dec. Sunny
Sunny
 23° /13° 0 mm 8
29 Dec. Sunny
Sunny
 22° /11° 0 mm 8
30 Dec. Moderate rain at times
Moderate rain at times
 22° /12° 15.9 mm 6
31 Dec. Sunny
Sunny
 22° /10° 2.7 mm 6
Next
Important Notice
Our weather forecast for Nelson 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 Nelson forecast closer to your planned date for the most up-to-date weather information.
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Nelson in December - FAQ

What are the expected maximum and minimum temperatures in Nelson during December?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Nelson during December?
Moderate rainfall is anticipated in Nelson during December, with a total of 72.2 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Nelson during December?
The average wind speed in Nelson during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Nelson

Explore the daily rainfall trends and prepare for Nelsons December weather 💧
Typically, Nelson has 18 rainy days in December with a total of 72.2 mm of rainfall.

UV exposure in Nelson during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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Location coordinates Where is Nelson?

Get accurate weather forecasts for Nelson, located at latitude -41.271 and longitude 173.284. Stay updated with localized weather information tailored for Nelson.

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