Average data for 10 years
1 December
Monday
+14°
+13°
2 December
Tuesday
+14°
+13°
3 December
Wednesday
+14°
+13°
4 December
Thursday
+14°
+13°
5 December
Friday
+14°
+13°
6 December
Saturday
+14°
+13°
7 December
Sunday
+15°
+13°
8 December
Monday
+14°
+13°
9 December
Tuesday
+14°
+13°
10 December
Wednesday
+15°
+13°
11 December
Thursday
+15°
+13°
12 December
Friday
+15°
+13°
13 December
Saturday
+15°
+13°
14 December
Sunday
+14°
+13°
15 December
Monday
+14°
+12°
16 December
Tuesday
+14°
+12°
17 December
Wednesday
+14°
+13°
18 December
Thursday
+14°
+13°
19 December
Friday
+14°
+13°
20 December
Saturday
+14°
+13°
21 December
Sunday
+14°
+13°
22 December
Monday
+14°
+13°
23 December
Tuesday
+14°
+13°
24 December
Wednesday
+14°
+12°
25 December
Thursday
+14°
+12°
26 December
Friday
+14°
+12°
27 December
Saturday
+14°
+12°
28 December
Sunday
+14°
+13°
29 December
Monday
+14°
+13°
30 December
Tuesday
+14°
+13°
31 December
Wednesday
+14°
+13°
Cities with similar weather in December
Spain
Barcelona
Tunisia
Tunis
Turkey
Belek
Turkey
Marmaris
Greece
Heraklion
December in Sintra is the windiest and the cloudiest month of the year. In December, the weather in Sintra is typically warm. Average daily high temperature in December is about 14 degrees above zero. On average, Sintra has 13 rainy, 8 sunny, 7 partly cloudy, and 3 cloudy days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Sintra.