New Plymouth
December
Weather in New Plymouth for December 2025
Your guide to New Plymouth weather in December - trends and predictions
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.
New Plymouth experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 283.6 mm.
Temperatures
Rain 🌧️
22
Dry days
9
Rainy days
0
Snow days
20°/12°
Temperatures
21 km/h
Avg max wind
81 %
Avg humidity
New Plymouth Weather December
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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
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Partly cloudy | 17° /11° | 1.3 mm | 6 | |
| 2 Dec. |  Patchy rain possible | 18° /13° | 0.2 mm | 6 | |
| 3 Dec. | Light rain shower | 18° /14° | 10.4 mm | 6 | |
| 4 Dec. | Patchy rain possible | 19° /15° | 0.6 mm | 6 | |
| 5 Dec. | Light rain shower | 17° /13° | 2.4 mm | 6 | |
| 6 Dec. | Patchy rain possible | 19° /12° | 0.3 mm | 7 | |
| 7 Dec. | Patchy rain possible | 19° /11° | 0.1 mm | 6 | |
| 8 Dec. |  Cloudy | 19° /11° | 3.6 mm | 6 | |
| 9 Dec. | Patchy rain possible | 19° /10° | 7.4 mm | 6 | |
| 10 Dec. |  Light rain | 17° /11° | 2.3 mm | 6 | |
| 11 Dec. |  Overcast | 17° /11° | 0 mm | 6 | |
| 12 Dec. | Patchy rain possible | 17° /12° | 4 mm | 6 | |
| 13 Dec. | Patchy rain possible | 18° /12° | 0.7 mm | 6 | |
| 14 Dec. | Patchy rain possible | 19° /13° | 0 mm | 7 | |
| 15 Dec. | Patchy rain possible | 19° /13° | 0.1 mm | 6 | |
| 16 Dec. | Patchy rain possible | 19° /14° | 0.4 mm | 6 | |
| 17 Dec. | Patchy rain possible | 18° /13° | 0.8 mm | 6 | |
| 18 Dec. |  Fog | 20° /11° | 0.7 mm | 7 | |
| 19 Dec. |  Sunny | 20° /12° | 0 mm | 7 | |
| 20 Dec. | Sunny | 19° /13° | 2.8 mm | 6 | |
| 21 Dec. | Overcast | 20° /14° | 6.6 mm | 6 | |
| 22 Dec. |  Moderate or heavy rain shower | 20° /15° | 9.9 mm | 6 | |
| 23 Dec. |  Heavy rain at times | 19° /15° | 6.9 mm | 5 | |
| 24 Dec. | Patchy rain possible | 19° /15° | 11.4 mm | 5 | |
| 25 Dec. | Patchy rain possible | 20° /14° | 5.1 mm | 6 | |
| 26 Dec. | Patchy rain possible | 20° /14° | 10.4 mm | 6 | |
| 27 Dec. | Sunny | 22° /14° | 0.1 mm | 7 | |
| 28 Dec. | Sunny | 22° /14° | 0.6 mm | 7 | |
| 29 Dec. | Sunny | 21° /14° | 10.7 mm | 6 | |
| 30 Dec. | Light rain shower | 22° /15° | 5.2 mm | 6 | |
| 31 Dec. | Partly cloudy | 20° /14° | 4.6 mm | 6 | |
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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 20° and cooler nights around 12°. 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 283.6 mm is expected in New Plymouth during December, occurring over more than 9 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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