Weather in Blenheim in December 2025, December - Blenheim, Marlborough, New Zealand

Currently in Blenheim: +18°C

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Weather in December 2025 in Blenheim

The average temperature in Blenheim in December year of 2025 is +16°C. Interesting that the average daytime temperature is as +20°C while the average nightly temperature is +12°C. The December hottest day is the 18th December(Afternoon) with a temperature of about +28°C. The coldest day in Auckland in December 2025 is 28th December(Overnight). The temperature at that time is +1°C.

As a Occasional cloudy month, December 2025 has 15 days with precipitation.

How Sunny Blenheim Weather in December 2025

The weather in Blenheim is quite changeable, similarly in many other places in . Talking about Blenheim weather in December 2025 can be described as "Occasional cloudy".

Clear Sky vs Cloudiness	Occasional cloudy
Rainy Days(Occasional Showers Included)	15
Maximum Temperature	+28°C (Afternoon, 18th December)
Minimum Temperature	+1°C (Overnight, 28th December)

Please find more detailed day by day information about December weather in Auckland in the year 2025 below.

Blenheim Weather December 2025

Early December, from 1 December, 2025 to Sun, 7 December 2025

01.12.2025, Mon
Wind: 10-11 m/s, S,S-E, Pressure: 1019-1011 hPa, Humidity: 53-55%
Overnight	+7°C	Clear Sky
Morning	+10°C	Occasional Showers
Afternoon	+11°C	Occasional Showers
Evening	+11°C	Occasional Showers
02.12.2025, Tue
Wind: 5-6 m/s, N-W, Pressure: 1019-1011 hPa, Humidity: 53-55%
Overnight	+1°C	Occasional Showers
Morning	+5°C	Mainly Cloudy
Afternoon	+14°C	Clear Sky
Evening	+12°C	Cloud
03.12.2025, Wen
Wind: 2-3 m/s, E,N-E, Pressure: 1015-1007 hPa, Humidity: 44-46%
Overnight	+11°C	Mainly Cloudy
Morning	+14°C	Cloud
Afternoon	+20°C	Light Cloud
Evening	+17°C	Light Cloud
04.12.2025, Thu
Wind: 3-4 m/s, W, Pressure: 1013-1005 hPa, Humidity: 40-42%
Overnight	+4°C	Cloud
Morning	+7°C	Occasional Showers
Afternoon	+17°C	Rain
Evening	+15°C	Mainly Cloudy
05.12.2025, Fri
Wind: 7-8 m/s, N-W, Pressure: 1007-999 hPa, Humidity: 49-51%
Overnight	+10°C	Occasional Showers
Morning	+11°C	Mainly Cloudy
Afternoon	+21°C	Light Cloud
Evening	+17°C	Cloud
06.12.2025, Sat
Wind: 5-6 m/s, N, Pressure: 1015-1007 hPa, Humidity: 43-45%
Overnight	+7°C	Cloud
Morning	+11°C	Cloud
Afternoon	+19°C	Cloud
Evening	+15°C	Light Cloud
07.12.2025, Sun
Wind: 7-8 m/s, N-W, Pressure: 1008-1000 hPa, Humidity: 71-73%
Overnight	+16°C	Light Cloud
Morning	+16°C	Occasional Showers
Afternoon	+16°C	Occasional Showers
Evening	+16°C	Occasional Showers

Early December, Early December, from 1 December, 2025 to Sun, 7 December, 2025

08.12.2025, Mon
Wind: 8-9 m/s, W,N-W, Pressure: 1011-1003 hPa, Humidity: 39-41%
Overnight	+9°C	Occasional Showers
Morning	+9°C	Mainly Cloudy
Afternoon	+23°C	Mainly Cloudy
Evening	+15°C	Mainly Cloudy
09.12.2025, Tue
Wind: 1-2 m/s, N,N-E, Pressure: 1013-1005 hPa, Humidity: 47-49%
Overnight	+12°C	Mainly Cloudy
Morning	+13°C	Mainly Cloudy
Afternoon	+24°C	Clear Sky
Evening	+22°C	Cloud
10.12.2025, Wen
Wind: 3-4 m/s, N-E, Pressure: 1009-1001 hPa, Humidity: 88-90%
Overnight	+9°C	Mainly Cloudy
Morning	+11°C	Cloud
Afternoon	+16°C	Light Cloud
Evening	+15°C	Mainly Cloudy
11.12.2025, Thu
Wind: 8-9 m/s, W, Pressure: 1011-1003 hPa, Humidity: 44-46%
Overnight	+9°C	Cloud
Morning	+12°C	Occasional Showers
Afternoon	+15°C	Thunderstorm
Evening	+12°C	Occasional Showers
12.12.2025, Fri
Wind: 4-5 m/s, E, Pressure: 1020-1012 hPa, Humidity: 54-56%
Overnight	+4°C	Occasional Showers
Morning	+5°C	Light Cloud
Afternoon	+15°C	Mainly Cloudy
Evening	+14°C	Clear Sky
13.12.2025, Sat
Wind: 4-5 m/s, E, Pressure: 1023-1015 hPa, Humidity: 66-68%
Overnight	+11°C	Clear Sky
Morning	+13°C	Cloud
Afternoon	+12°C	Cloud
Evening	+11°C	Light Cloud
14.12.2025, Sun
Wind: 4-5 m/s, E, Pressure: 1029-1021 hPa, Humidity: 62-64%
Overnight	+4°C	Light Cloud
Morning	+4°C	Cloud
Afternoon	+16°C	Cloud
Evening	+14°C	Cloud

Early December, from 1 December, 2025 to Sun, 7 December, 2025

15.12.2025, Mon
Wind: 3-4 m/s, E,N-E, Pressure: 1027-1019 hPa, Humidity: 50-52%
Overnight	+9°C	Cloud
Morning	+11°C	Clear Sky
Afternoon	+18°C	Clear Sky
Evening	+17°C	Clear Sky
16.12.2025, Tue
Wind: 5-6 m/s, E, Pressure: 1020-1012 hPa, Humidity: 44-46%
Overnight	+14°C	Clear Sky
Morning	+15°C	Cloud
Afternoon	+23°C	Light Cloud
Evening	+17°C	Light Cloud
17.12.2025, Wen
Wind: 4-5 m/s, E, Pressure: 1023-1015 hPa, Humidity: 59-61%
Overnight	+12°C	Cloud
Morning	+13°C	Mainly Cloudy
Afternoon	+16°C	Clear Sky
Evening	+13°C	Cloud
18.12.2025, Thu
Wind: 4-5 m/s, N, Pressure: 1021-1013 hPa, Humidity: 47-49%
Overnight	+7°C	Mainly Cloudy
Morning	+7°C	Rain
Afternoon	+26°C	Occasional Showers
Evening	+23°C	Cloud
19.12.2025, Fri
Wind: 6-7 m/s, N,N-W, Pressure: 1019-1011 hPa, Humidity: 30-32%
Overnight	+11°C	Rain
Morning	+14°C	Mainly Cloudy
Afternoon	+24°C	Light Cloud
Evening	+19°C	Cloud
20.12.2025, Sat
Wind: 5-6 m/s, E, Pressure: 1020-1012 hPa, Humidity: 56-58%
Overnight	+9°C	Cloud
Morning	+11°C	Cloud
Afternoon	+18°C	Cloud
Evening	+13°C	Light Cloud
21.12.2025, Sun
Wind: 2-3 m/s, E, Pressure: 1021-1013 hPa, Humidity: 66-68%
Overnight	+12°C	Light Cloud
Morning	+13°C	Occasional Showers
Afternoon	+16°C	Occasional Showers
Evening	+15°C	Occasional Showers

Early December, from 1 December, 2025 to Sun, 7 December, 2025

22.12.2025, Mon
Wind: 3-4 m/s, N,N-W, Pressure: 1015-1007 hPa, Humidity: 65-67%
Overnight	+15°C	Occasional Showers
Morning	+15°C	Occasional Showers
Afternoon	+23°C	Occasional Showers
Evening	+22°C	Occasional Showers
23.12.2025, Tue
Wind: 4-5 m/s, N-W, Pressure: 1011-1003 hPa, Humidity: 62-64%
Overnight	+10°C	Occasional Showers
Morning	+10°C	Cloud
Afternoon	+15°C	Light Cloud
Evening	+13°C	Mainly Cloudy
24.12.2025, Wen
Wind: 3-4 m/s, W, Pressure: 999-991 hPa, Humidity: 49-51%
Overnight	+8°C	Cloud
Morning	+9°C	Cloud
Afternoon	+19°C	Light Cloud
Evening	+14°C	Mainly Cloudy
25.12.2025, Thu
Wind: 3-4 m/s, E, Pressure: 1012-1004 hPa, Humidity: 72-74%
Overnight	+10°C	Cloud
Morning	+10°C	Occasional Showers
Afternoon	+14°C	Rain
Evening	+14°C	Rain
26.12.2025, Fri
Wind: 4-5 m/s, E, Pressure: 1015-1007 hPa, Humidity: 57-59%
Overnight	+11°C	Occasional Showers
Morning	+13°C	Mainly Cloudy
Afternoon	+11°C	Light Cloud
Evening	+7°C	Cloud
27.12.2025, Sat
Wind: 8-9 m/s, S, Pressure: 1023-1015 hPa, Humidity: 47-49%
Overnight	+8°C	Cloud
Morning	+8°C	Mainly Cloudy
Afternoon	+17°C	Light Cloud
Evening	+14°C	Cloud
28.12.2025, Sun
Wind: 4-5 m/s, E, Pressure: 1023-1015 hPa, Humidity: 45-47%
Overnight	-1°C	Cloud
Morning	+2°C	Clear Sky
Afternoon	+12°C	Clear Sky
Evening	+9°C	Clear Sky

Late December, Early December, from 1 December, 2025 to Sun, 7 December, 2025

29.12.2025, Mon
Wind: 5-6 m/s, E, Pressure: 1023-1015 hPa, Humidity: 57-59%
Overnight	+4°C	Clear Sky
Morning	+5°C	Light Cloud
Afternoon	+15°C	Light Cloud
Evening	+14°C	Light Cloud
30.12.2025, Tue
Wind: 3-4 m/s, E, Pressure: 1024-1016 hPa, Humidity: 60-62%
Overnight	+9°C	Light Cloud
Morning	+11°C	Cloud
Afternoon	+13°C	Light Cloud
Evening	+10°C	Light Cloud
31.12.2025, Wen
Wind: 3-4 m/s, E, Pressure: 1025-1017 hPa, Humidity: 58-60%
Overnight	+8°C	Cloud
Morning	+10°C	Mainly Cloudy
Afternoon	+18°C	Clear Sky
Evening	+18°C	Cloud