This page presents a long range weather forecast for Swansea in December as well as other months. You can quickly get a brief overview of the weather to expect in December on a daily basis.
The Swansea extended forecast data provided is based on the average values of previous years.
Select a month and click on a day for more information:
Sunday
Dec 1
19° / 10°
Monday
Dec 2
22° / 11°
Tuesday
Dec 3
20° / 10°
Wednesday
Dec 4
22° / 9°
Thursday
Dec 5
20° / 10°
Friday
Dec 6
19° / 7°
Saturday
Dec 7
21° / 7°
Sunday
Dec 8
20° / 8°
Monday
Dec 9
16° / 8°
Tuesday
Dec 10
17° / 7°
Wednesday
Dec 11
18° / 9°
Thursday
Dec 12
20° / 10°
Friday
Dec 13
19° / 9°
Saturday
Dec 14
21° / 9°
Sunday
Dec 15
20° / 10°
Monday
Dec 16
19° / 9°
Tuesday
Dec 17
21° / 6°
Wednesday
Dec 18
25° / 9°
Thursday
Dec 19
19° / 8°
Friday
Dec 20
18° / 8°
Saturday
Dec 21
19° / 10°
Sunday
Dec 22
19° / 9°
Monday
Dec 23
18° / 11°
Tuesday
Dec 24
23° / 10°
Wednesday
Dec 25
23° / 12°
Thursday
Dec 26
21° / 13°
Friday
Dec 27
21° / 12°
Saturday
Dec 28
23° / 11°
Sunday
Dec 29
20° / 9°
Monday
Dec 30
22° / 11°
Tuesday
Dec 31
26° / 11°
Swansea 30 days weather forecast
Check out our estimated 30 days weather forecast for Swansea, this data is based on the average weather in Swansea in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Swansea next to the desired date.