Weather in December
December witnesses the start of the summer season in Whanganui. The temperatures increase further to average between 12.8°C (55°F) and 20.7°C (69.3°F)—clearly warmer than the previous month. The daylight hours reach its peak and the city experiences its longest period of daylight. Even as the summer sets in, the rainfall stays relatively high. Despite the persistent rainfall pattern, Whanganui's weather in December remains perfect for welcoming the holiday season and end-of-year outdoor celebrations.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:32 pm. On the last day of December, in Whanganui, sunrise is at 5:54 am and sunset at 8:51 pm NZDT.
Temperature
The onset of December manifests an average high-temperature of a pleasant 20.7°C (69.3°F), demonstrating a minor variation from the preceding month. December brings with it a nighttime average temperature of 12.8°C (55°F) in Whanganui.Rainfall
During December, Whanganui regularly aggregates up to 86mm (3.39") of precipitation. Throughout the year, in Whanganui, 918mm (36.14") of rain is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 5:45 am and sunset at 8:32 pm. On the last day of December, in Whanganui, sunrise is at 5:54 am and sunset at 8:51 pm NZDT.
Sunshine
In December, the average sunshine in Whanganui, New Zealand, is 7.2h.Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Whanganui in December?
In December, in Whanganui, the average high-temperature is 20.7°C (69.3°F), and the average low-temperature is 12.8°C (55°F).
How much does it rain in Whanganui in December?
During December, Whanganui regularly aggregates up to 86mm (3.39") of precipitation.
When are the longest days in Whanganui?
With an average of 14h and 54min of daylight, December has the longest days of the year.
How many hours of daylight does Whanganui have in December?
The average day length in December in Whanganui is 14h and 57min.
When are sunrise and sunset in December in Whanganui?
On the first day of December in Whanganui, New Zealand, sunrise is at 5:45 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:51 pm NZDT.
How many hours of sunshine does Whanganui have in December?
In December, the average sunshine duration in Whanganui, New Zealand, is 7.2h.
Average temperature in December
Whanganui, New Zealand
- Average high temperature in December: 20.7°C
The warmest month (with the highest average high temperature) is February (22.7°C).
The month with the lowest average high temperature is July (13.2°C).
- Average low temperature in December: 12.8°C
The month with the highest average low temperature is February (14.1°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average rainfall in December
Whanganui, New Zealand
- Average rainfall in December: 86.4mm
The wettest month (with the highest rainfall) is June (88.8mm).
The driest month (with the least rainfall) is January (59.2mm).
Average daylight in December /
Average sunshine in December
Whanganui, New Zealand
- Average daylight in December: 14h and 5min
The month with the longest days is December (Average daylight: 14h and 54min).
The month with the shortest days is June (Average daylight: 9h and 24min).
- Average sunshine in December: 7h and 1min
The month with the most sunshine is January (Average sunshine: 8h and 6min).
The month with the least sunshine is June (Average sunshine: 3h and 18min).
Whanganui, New Zealand
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