World Resorts New Zealand Wellington Weather

Wellington weather in December

Weather in Wellington: December

Average day temperature: 64.1°F
Average night temperature: 57.9°F
Sea water temperature: 60.7°F
Number of sunny days: 12 days
Day length: 14.9 - 15.2 hours
Number of rainy days: 4 days
Precipitation totals: 3.3 in.

Air temperature in December, °F

Show year:
2025
2024
2023

The highest day temperature during December of 2025 was 66°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during December were 62.5°F and 57.5°F.

Sea water temperature in Wellington in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 62.0°F. The highest and lowest sea temperatures during the month were 63.0°F and 60.8°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in December is almost equal.

Precipitation total in December, in.

Precipitation total value in Wellington in December is 3.7 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 15.1 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 7.4.

Best time for vacation in Wellington

Sunniest months:
January 16 days
February 14 days
March 13 days
Warmest months:
February 67.1 °F
January 66.9 °F
March 64.7 °F
Warmest sea temp:
February 63.1 °F
January 62.3 °F
March 61.8 °F
Coldest months:
August 53.3 °F
July 53.8 °F
September 54.6 °F
Rainiest months:
August 6 days
July 6 days
June 5 days
Windiest months:
September 17.4 mph
October 17.2 mph
November 16.7 mph

Wellington on a weather map

Wellington
+54°F
NW 30 mph
Feels like: +48°F
Precip.: 100%
Places in New Zealand:
Name
°F
+54°F
+45°F
+63°F
24 Hours Forecast
Wellington
Local time: 02:30
December 30, tuesday
0300
54°F
NW
30 mph
0600
54°F
NW
30 mph
0900
55°F
NW
29 mph
1200
57°F
NW
27 mph
1500
57°F
N
26 mph
1800
55°F
N
37 mph
2100
55°F
N
30 mph
December 31, wednesday
0000
55°F
N
24 mph
Units of measurement: °C / °F