31.12
wed
wed
Day
82°F
SE 11 mph
Precip.
100%
100%
Night
77°F
SE 12 mph
Precip.
100%
100%
01.01
thu
thu
Day
82°F
SE 13 mph
Precip.
0%
0%
Night
77°F
SE 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
81°F
E 8 mph
Precip.
100%
100%
Night
75°F
S 3 mph
Precip.
60%
60%
03.01
sat
sat
Day
82°F
E 7 mph
Precip.
100%
100%
Night
75°F
W 3 mph
Precip.
100%
100%
04.01
sun
sun
Day
82°F
N 6 mph
Precip.
100%
100%
Night
77°F
NE 3 mph
Precip.
0%
0%
05.01
mon
mon
Day
81°F
E 6 mph
Precip.
24%
24%
Night
77°F
N 4 mph
Precip.
0%
0%
06.01
tue
tue
Day
81°F
N 3 mph
Precip.
87%
87%
Night
77°F
N 3 mph
Precip.
29%
29%
07.01
wed
wed
Day
81°F
NE 4 mph
Precip.
100%
100%
Night
77°F
N 5 mph
Precip.
0%
0%
08.01
thu
thu
Day
81°F
E 4 mph
Precip.
100%
100%
Night
77°F
N 4 mph
Precip.
0%
0%
09.01
fri
fri
Day
81°F
E 5 mph
Precip.
20%
20%
Night
77°F
W 6 mph
Precip.
0%
0%
10.01
sat
sat
Day
79°F
SE 2 mph
Precip.
0%
0%
Night
77°F
E 2 mph
Precip.
55%
55%
11.01
sun
sun
Day
82°F
E 6 mph
Precip.
24%
24%
Night
77°F
S 7 mph
Precip.
0%
0%
12.01
mon
mon
Day
84°F
SE 3 mph
Precip.
29%
29%
Night
75°F
NW 8 mph
Precip.
0%
0%
13.01
tue
tue
Day
84°F
SE 12 mph
Precip.
100%
100%
Night
77°F
S 13 mph
Precip.
0%
0%
sea water
temperature
temperature
| Unawatuna |
monthly
weather
weather
| Unawatuna |
current
weather
weather
| Unawatuna |
7 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 82.4°F. The highest and lowest sea temperatures during the month were 83.7°F and 81.5°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: 23:47
January 01, thursday
0000
77°F
SE
12 mph
12 mph
0300
77°F
SE
14 mph
14 mph
0600
77°F
SE
12 mph
12 mph
0900
81°F
SE
13 mph
13 mph
1200
82°F
SE
13 mph
13 mph
1500
81°F
E
13 mph
13 mph
1800
79°F
SE
11 mph
11 mph
2100
79°F
SE
8 mph
8 mph
