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Weather in New Plymouth for December 2025

Your guide to New Plymouth weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in New Plymouth at the beginning of December is 18.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21 °C by the end of December.

    • Rain 🌧️

  • New Plymouth in December brings notable rainfall, with an average of 17 rainy days and a total precipitation of 109.4 mm.

Average dry days
14
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/13°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
80 %
Avg humidity

New Plymouth Weather December

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

Temperatures trend during December in New Plymouth

See the weather trend as well as the moving average line

December weather in New Plymouth day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Partly cloudy
Partly cloudy
 17° /11° 1.3 mm 6
2 Dec. Patchy rain possible
Patchy rain possible
 18° /13° 0.2 mm 6
3 Dec. Light rain shower
Light rain shower
 18° /14° 10.4 mm 6
4 Dec. Patchy rain possible
Patchy rain possible
 19° /15° 0.6 mm 6
5 Dec. Light rain shower
Light rain shower
 17° /13° 2.4 mm 6
6 Dec. Patchy rain possible
Patchy rain possible
 19° /12° 0.3 mm 7
7 Dec. Patchy rain possible
Patchy rain possible
 19° /11° 0.1 mm 6
8 Dec. Cloudy
Cloudy
 19° /11° 3.6 mm 6
9 Dec. Patchy rain possible
Patchy rain possible
 19° /10° 7.4 mm 6
10 Dec. Light rain
Light rain
 17° /11° 2.3 mm 6
11 Dec. Overcast
Overcast
 17° /11° 0 mm 6
12 Dec. Patchy rain possible
Patchy rain possible
 17° /12° 4 mm 6
13 Dec. Patchy rain possible
Patchy rain possible
 18° /12° 0.7 mm 6
14 Dec. Patchy rain possible
Patchy rain possible
 19° /13° 0 mm 7
15 Dec. Patchy rain possible
Patchy rain possible
 19° /13° 0.1 mm 6
16 Dec. Patchy rain possible
Patchy rain possible
 19° /14° 0.4 mm 6
17 Dec. Patchy rain possible
Patchy rain possible
 18° /13° 0.8 mm 6
18 Dec. Fog
Fog
 20° /11° 0.7 mm 7
19 Dec. Sunny
Sunny
 20° /12° 0 mm 7
20 Dec. Sunny
Sunny
 19° /13° 2.8 mm 6
21 Dec. Overcast
Overcast
 20° /14° 6.6 mm 6
22 Dec. Moderate or heavy rain shower
Moderate or heavy rain shower
 20° /15° 9.9 mm 6
23 Dec. Heavy rain at times
Heavy rain at times
 19° /15° 6.9 mm 5
24 Dec. Patchy rain possible
Patchy rain possible
 19° /15° 11.4 mm 5
25 Dec. Patchy rain possible
Patchy rain possible
 20° /14° 5.1 mm 6
26 Dec. Patchy rain possible
Patchy rain possible
 20° /14° 10.4 mm 6
27 Dec. Sunny
Sunny
 22° /14° 0.1 mm 7
28 Dec. Sunny
Sunny
 22° /14° 0.6 mm 7
29 Dec. Sunny
Sunny
 21° /14° 10.7 mm 6
30 Dec. Light rain shower
Light rain shower
 22° /15° 5.2 mm 6
31 Dec. Partly cloudy
Partly cloudy
 20° /14° 4.6 mm 6
Next
Important Notice
Our weather forecast for New Plymouth 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 New Plymouth forecast closer to your planned date for the most up-to-date weather information.
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New Plymouth in December - FAQ

What are the expected maximum and minimum temperatures in New Plymouth during December?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in New Plymouth during December?
Significant rainfall exceeding 109.4 mm is expected in New Plymouth during December, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Plymouth during December?
The average wind speed in New Plymouth during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in New Plymouth

Explore the daily rainfall trends and prepare for New Plymouths December weather 💧

UV exposure in New Plymouth during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️

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Get accurate weather forecasts for New Plymouth, located at latitude -39.067 and longitude 174.083. Stay updated with localized weather information tailored for New Plymouth.

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