December weather forecast and climate
Ceduna, Australia AU

• Average high temperature in December: 27.2°C

The warmest month (with the highest average high temperature) is January (28.5°C).
The month with the lowest average high temperature is July (17.4°C).

• Average low temperature in December: 14°C

The month with the highest average low temperature is January (15.1°C).
The coldest month (with the lowest average low temperature) is July (5.7°C).

• Average humidity in December: 45%

The month with the highest relative humidity is July (54%).
The month with the lowest relative humidity is November (43%).

• Average rainfall in December: 20.8mm

The wettest month (with the highest rainfall) is July (39.9mm).
The driest month (with the lowest rainfall) is January (11.6mm).

• Average rainfall days in December: 5 days

The month with the highest number of rainy days is July (9 days).
Months with the lowest number of rainy days are March, April, November and December (5 days).

• Average sea temperature in December: 19.2°C

The best month for swimming (with the highest average sea temperature) is January (19.8°C).
The coldest month (with the lowest average sea temperature) is August (15.8°C).

• Average daylight in December: 14.2h

The month with the longest days is December (Average daylight: 14.2h).
The month with shortest days is June (Average daylight: 10.1h).

• Average sunshine in December: 10h

Months with most sunshine are January, February and December (Average sunshine: 10h).
Months with least sunshine are May and June (Average sunshine: 6).

• Average UV index in December: 12

Months with the highest UV index are January, February and December (UV index 12).
Months with the lowest UV index are June and July (UV index 3).