Measurements:
°C
°F
Unawatuna
84°F
E 11 mph
Feels like: 92°F
Precip: 100%
World Resorts Sri Lanka Unawatuna Weather

Unawatuna Sea Water Temperature

Current Sea Water Temperature:
+87.0°F
Maximum Sea Water Temperature in May: 92.4°F
Minimum Sea Water Temperature in May: 84.6°F
Average water temperature in May: 88.4°F

Sea Water Temperature for the Last 10 Days:

May 31 87.0°F May 26 87.4°F
May 30 86.8°F May 25 87.4°F
May 29 87.0°F May 24 87.2°F
May 28 87.6°F May 23 88.0°F
May 27 87.4°F May 22 88.6°F

When is the Warmest Sea for Unawatuna?

According to our data for the last three years for Unawatuna the highest average sea water temperature was in April, May and March.

Average Water Temperature by Month, °F

Sea Water Temperature in April

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Unawatuna was 90.7°F. The maximum and minimum values were 89.0°F and 92.0°F respectively.

Sea Water Temperature in May

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Unawatuna was 88.9°F. The maximum and minimum values were 86.8°F and 91.8°F respectively.

Sea Water Temperature in March

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Unawatuna was 87.7°F. The maximum and minimum values were 86.0°F and 89.6°F respectively.

Best Time to Visit Unawatuna
The most sunny months:
January 13 days
March 13 days
February 11 days
The most warm months:
April 92.3 °F
March 92.2 °F
February 90.7 °F
Warmest sea temperature:
April 89.8 °F
May 88.4 °F
March 88.2 °F
The most cold months:
September 87.8 °F
August 87.9 °F
July 88.3 °F
The most rainy months:
June 18 days
September 18 days
August 17 days
The most windy months:
July 12 mph
June 12 mph
August 12 mph

Unawatuna on the Weather Map

Sri Lanka Resorts:
NAME
Ahungalla +84
Bentota +84
Beruwela +84
Colombo +84
Halle +84
Hambantota +84
Hikkaduwa +84
Marawila +84
Marissa +84
Negombo +84
Pasikuda +88
Tangalle +84
Trincomalee +90
Unawatuna +84
Weligama +84
24 Hours Weather Forecast
Unawatuna
Local time: 18:44
31 may, sunday
2100 84°F
E
10 mph
01 jun, monday
0000 82°F
E
11 mph
0300 82°F
E
12 mph
0600 82°F
E
10 mph
0900 84°F
E
12 mph
1200 86°F
E
12 mph
1500 84°F
E
13 mph
1800 84°F
E
12 mph

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