21.12
sun
sun
Day
82°F
N 9 mph
Precip.
100%
100%
Night
75°F
SW 4 mph
Precip.
0%
0%
22.12
mon
mon
Day
79°F
NE 5 mph
Precip.
100%
100%
Night
77°F
NW 4 mph
Precip.
0%
0%
23.12
tue
tue
Day
81°F
NE 6 mph
Precip.
100%
100%
Night
77°F
SW 1 mph
Precip.
60%
60%
24.12
wed
wed
Day
81°F
NE 6 mph
Precip.
100%
100%
Night
77°F
SE 6 mph
Precip.
62%
62%
25.12
thu
thu
Day
79°F
NE 4 mph
Precip.
80%
80%
Night
77°F
SE 4 mph
Precip.
53%
53%
26.12
fri
fri
Day
81°F
N 3 mph
Precip.
45%
45%
Night
77°F
NW 5 mph
Precip.
67%
67%
27.12
sat
sat
Day
81°F
E 7 mph
Precip.
70%
70%
Night
75°F
NE 3 mph
Precip.
43%
43%
sea water
temperature
temperature
| Unawatuna |
monthly
weather
weather
| Unawatuna |
current
weather
weather
| Unawatuna |
14 days
forecast
forecast
| Unawatuna |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 82.7°F. The highest and lowest sea temperatures during the month were 83.7°F and 82.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 82.1°F. The highest and lowest sea temperatures during the month were 83.1°F and 81.7°F.
Air temperature in Unawatuna, °F
Precipitation total in Unawatuna, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Unawatuna
Unawatuna on a weather map
Places in Sri Lanka:
Name
°F
24 Hours Forecast
Unawatuna
Local time: 16:41
December 21, sunday
1800
79°F
NW
5 mph
5 mph
2100
77°F
SW
2 mph
2 mph
December 22, monday
0000
75°F
SW
4 mph
4 mph
0300
75°F
S
5 mph
5 mph
0600
75°F
S
5 mph
5 mph
0900
79°F
SE
3 mph
3 mph
1200
79°F
NE
5 mph
5 mph
1500
79°F
NE
4 mph
4 mph
