Weather in December
Temperature
Blenheim's shift into December sets the average high-temperature at a still agreeable 22.2°C (72°F), a figure that deviates only slightly from November's 20°C (68°F). Blenheim experiences a mean low-temperature of 10.8°C (51.4°F) during December.Humidity
December is the least humid month in Blenheim, with an average relative humidity of 67.5%.Rainfall
In Blenheim, in December, during 6.7 rainfall days, 58mm (2.28") of precipitation is typically accumulated. Throughout the year, there are 81.5 rainfall days, and 711mm (27.99") of precipitation is accumulated.Daylight
The month with the longest days in Blenheim is December, with an average of 15h and 6min of daylight.On the first day of the month, sunrise is at 5:44 am and sunset at 8:41 pm. On the last day of December, sunrise is at 5:53 am and sunset at 9:01 pm NZDT.
Sunshine
In December, the average sunshine is 8h.Frequently asked questions
What is the usual temperature for Blenheim in December?
What is the least humid month in Blenheim?
What is the average humidity in December in Blenheim?
How many days does it rain in December in Blenheim?
When are the longest days in Blenheim?
How many hours of daylight does Blenheim have in December?
When is the sunrise / sunset in December in Blenheim?
How many hours of sunshine does Blenheim have in December?
Average temperature in December
Blenheim, New Zealand
- Average high temperature in December: 22.2°C
The warmest month (with the highest average high temperature) is January (24.1°C).
The month with the lowest average high temperature is July (12.6°C).
- Average low temperature in December: 10.8°C
The month with the highest average low temperature is January (11.8°C).
The coldest month (with the lowest average low temperature) is July (1.5°C).
Average humidity in December
Blenheim, New Zealand
- Average humidity in December: 67.5%
The month with the highest relative humidity is July (83.7%).
The month with the lowest relative humidity is December (67.5%).
Average rainfall in December
Blenheim, New Zealand
- Average rainfall in December: 58.1mm
The wettest month (with the highest rainfall) is July (74.3mm).
The driest month (with the least rainfall) is March (46.5mm).
Average rainfall days in December
Blenheim, New Zealand
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is September (8.5 days).
The month with the least rainy days is January (5 days).
Average daylight in December /
Average sunshine in December
Blenheim, New Zealand
- Average daylight in December: 15h and 1min
The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 12min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is January (Average sunshine: 8h and 30min).
The months with the least sunshine are June and July (Average sunshine: 5h and 6min).
Blenheim, New Zealand
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