18.12
thu
thu
Day
41°F
N 7 mph
Precip.
0%
0%
Night
37°F
N 9 mph
Precip.
0%
0%
19.12
fri
fri
Day
39°F
N 12 mph
Precip.
0%
0%
Night
41°F
N 11 mph
Precip.
0%
0%
20.12
sat
sat
Day
45°F
NE 9 mph
Precip.
0%
0%
Night
41°F
NE 7 mph
Precip.
66%
66%
21.12
sun
sun
Day
39°F
E 6 mph
Precip.
0%
0%
Night
36°F
E 4 mph
Precip.
0%
0%
22.12
mon
mon
Day
36°F
N 3 mph
Precip.
0%
0%
Night
34°F
NW 4 mph
Precip.
20%
20%
23.12
tue
tue
Day
36°F
W 7 mph
Precip.
0%
0%
Night
30°F
W 11 mph
Precip.
0%
0%
24.12
wed
wed
Day
27°F
W 13 mph
Precip.
0%
0%
Night
23°F
W 14 mph
Precip.
0%
0%
25.12
thu
thu
Day
21°F
W 12 mph
Precip.
0%
0%
Night
19°F
NW 9 mph
Precip.
0%
0%
26.12
fri
fri
Day
19°F
NW 7 mph
Precip.
0%
0%
Night
19°F
NW 6 mph
Precip.
0%
0%
27.12
sat
sat
Day
23°F
NW 6 mph
Precip.
0%
0%
Night
23°F
NW 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
25°F
NW 7 mph
Precip.
0%
0%
Night
23°F
N 5 mph
Precip.
0%
0%
29.12
mon
mon
Day
30°F
S 6 mph
Precip.
41%
41%
Night
28°F
S 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
32°F
SE 5 mph
Precip.
0%
0%
Night
37°F
SE 14 mph
Precip.
82%
82%
31.12
wed
wed
Day
37°F
SE 15 mph
Precip.
77%
77%
Night
37°F
SE 15 mph
Precip.
75%
75%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 40.9°F. The highest and lowest sea temperatures during the month were 42.1°F and 38.7°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 36.1°F. The highest and lowest sea temperatures during the month were 37.8°F and 33.4°F.
Air temperature in Riga, °F
Precipitation total in Riga, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Riga
Riga on a weather map
Places in Latvia:
Name
°F
24 Hours Forecast
Riga
Local time: 03:37
December 18, thursday
0600
37°F
NE
5 mph
5 mph
0900
37°F
NE
6 mph
6 mph
1200
41°F
N
7 mph
7 mph
1500
39°F
N
7 mph
7 mph
1800
39°F
N
9 mph
9 mph
2100
37°F
N
8 mph
8 mph
December 19, friday
0000
37°F
N
9 mph
9 mph
0300
37°F
N
8 mph
8 mph
