Average data for 10 years
1 December
Sunday
−8°
−9°
2 December
Monday
−7°
−9°
3 December
Tuesday
−7°
−7°
4 December
Wednesday
−5°
−8°
5 December
Thursday
−7°
−6°
6 December
Friday
−5°
−6°
7 December
Saturday
−5°
−9°
8 December
Sunday
−8°
−9°
9 December
Monday
−9°
−9°
10 December
Tuesday
−9°
−9°
11 December
Wednesday
−8°
−10°
12 December
Thursday
−7°
−9°
13 December
Friday
−9°
−11°
14 December
Saturday
−11°
−13°
15 December
Sunday
−12°
−13°
16 December
Monday
−13°
−14°
17 December
Tuesday
−11°
−13°
18 December
Wednesday
−14°
−16°
19 December
Thursday
−15°
−15°
20 December
Friday
−14°
−13°
21 December
Saturday
−9°
−11°
22 December
Sunday
−10°
−12°
23 December
Monday
−10°
−10°
24 December
Tuesday
−9°
−11°
25 December
Wednesday
−11°
−13°
26 December
Thursday
−9°
−8°
27 December
Friday
−5°
−7°
28 December
Saturday
−7°
−8°
29 December
Sunday
−7°
−10°
30 December
Monday
−9°
−10°
31 December
Tuesday
−9°
−10°
In December, the weather in Osa is typically freezing. Average daily high temperature in December is about 9 degrees below zero. On average, Osa has 19 snowy, 11 cloudy, and 1 sunny day in December. The snowfalls are usually light. December as well as January, February, April, and September is considered the most uncomfortable time to visit Osa.