Average data for 10 years
1 December
Monday
+5°
+1°
2 December
Tuesday
+5°
+2°
3 December
Wednesday
+4°
+1°
4 December
Thursday
+3°
+1°
5 December
Friday
+2°
0°
6 December
Saturday
+3°
0°
7 December
Sunday
+3°
+1°
8 December
Monday
+2°
0°
9 December
Tuesday
+1°
0°
10 December
Wednesday
+2°
−1°
11 December
Thursday
+2°
0°
12 December
Friday
+3°
0°
13 December
Saturday
+2°
0°
14 December
Sunday
+1°
−1°
15 December
Monday
+2°
0°
16 December
Tuesday
+1°
0°
17 December
Wednesday
+1°
−2°
18 December
Thursday
+2°
0°
19 December
Friday
+1°
0°
20 December
Saturday
+1°
−1°
21 December
Sunday
+1°
−1°
22 December
Monday
+1°
−1°
23 December
Tuesday
+1°
−1°
24 December
Wednesday
+1°
−1°
25 December
Thursday
+2°
0°
26 December
Friday
0°
−1°
27 December
Saturday
+1°
−1°
28 December
Sunday
0°
−2°
29 December
Monday
+1°
−2°
30 December
Tuesday
0°
−2°
31 December
Wednesday
0°
−3°
Cities with similar weather in December
Finland
Helsinki
Latvia
Riga
Estonia
Tallinn
Sweden
Stockholm
Iceland
Reykyavik
December in Sydney is the windiest month of the year. In December, the weather in Sydney is typically cold. Average daily high temperature in December is about 2 degrees above zero. On average, Sydney has 11 cloudy, 7 rainy, 7 partly cloudy, 3 snowy, and 3 sunny days in December. The rains are usually heavy. December as well as April, May, October, and November is considered the most uncomfortable time to visit Sydney.