World Resorts Sri Lanka Unawatuna Weather

Unawatuna sea water temperature

Current sea water temperature:
+82.8°F
Minimum sea water temperature in December: 85.3°F
Maximum sea water temperature in December: 80.8°F
Average sea water temperature in December: 83.2°F

Sea water temperature for the last 10 days:

December 16 82.8°F December 11 82.9°F
December 15 82.4°F December 10 82.9°F
December 14 82.2°F December 9 82.9°F
December 13 82.2°F December 8 82.8°F
December 12 82.8°F December 7 82.8°F

When is the warmest sea in Unawatuna?

Based on the data about daily sea water temperature for the last three years the warmest sea in Unawatuna was noticed in April, May and March.

Monthly Sea Temperatures in Unawatuna, °F

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.6°F.

Sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 86.0°F and 83.8°F.

Sea water temperature in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.0°F.

Best time for vacation in Unawatuna

Sunniest months:
January 13 days
March 13 days
February 11 days
Warmest months:
March 88.2 °F
April 88.2 °F
February 87.0 °F
Warmest sea temp:
April 85.7 °F
May 84.6 °F
March 84.4 °F
Coldest months:
September 84.0 °F
August 84.1 °F
July 84.5 °F
Rainiest months:
June 18 days
September 18 days
August 17 days
Windiest months:
July 12.6 mph
June 12.5 mph
August 12.1 mph

Unawatuna on a weather map

Unawatuna
+79°F
NW 4 mph
Feels like: +82°F
Precip.: 100%
Places in Sri Lanka:
Name
°F
+79°F
+79°F
+79°F
+79°F
+77°F
+79°F
+81°F
+77°F
+81°F
+79°F
+77°F
+79°F
+79°F
+77°F
+79°F
24 Hours Forecast
Unawatuna
Local time: 19:19
December 16, tuesday
2100
77°F
NW
4 mph
December 17, wednesday
0000
77°F
W
6 mph
0300
75°F
SW
4 mph
0600
75°F
SW
6 mph
0900
81°F
S
6 mph
1200
82°F
SE
4 mph
1500
81°F
NE
3 mph
1800
79°F
NW
5 mph

Best place for vacation:

Units of measurement: °C / °F