Average data for 10 years
1 December
Monday
+8°
+3°
2 December
Tuesday
+7°
+4°
3 December
Wednesday
+8°
+3°
4 December
Thursday
+8°
+3°
5 December
Friday
+8°
+3°
6 December
Saturday
+7°
+3°
7 December
Sunday
+8°
+3°
8 December
Monday
+8°
+3°
9 December
Tuesday
+8°
+3°
10 December
Wednesday
+7°
+2°
11 December
Thursday
+7°
+2°
12 December
Friday
+8°
+2°
13 December
Saturday
+7°
+3°
14 December
Sunday
+7°
+3°
15 December
Monday
+7°
+3°
16 December
Tuesday
+7°
+3°
17 December
Wednesday
+7°
+2°
18 December
Thursday
+7°
+3°
19 December
Friday
+7°
+2°
20 December
Saturday
+7°
+2°
21 December
Sunday
+8°
+4°
22 December
Monday
+8°
+4°
23 December
Tuesday
+9°
+4°
24 December
Wednesday
+8°
+5°
25 December
Thursday
+7°
+4°
26 December
Friday
+7°
+3°
27 December
Saturday
+7°
+3°
28 December
Sunday
+6°
+2°
29 December
Monday
+7°
+2°
30 December
Tuesday
+8°
+3°
31 December
Wednesday
+7°
+4°
Cities near you
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United Kingdom
London
United Kingdom
Manchester
United Kingdom
Liverpool
United Kingdom
Trowbridge
In December, the weather in Portsmouth is typically cold. Average daily high temperature in December is about 7 degrees above zero. On average, Portsmouth has 11 rainy, 9 partly cloudy, 8 cloudy, and 3 sunny days in December. The rains are usually moderate. December as well as January, February, March, and April is considered the most uncomfortable time to visit Portsmouth.