Measurements:
°C
°F
Sliema
66°F
SE 12 mph
Feels like: 66°F
Precip: 86%
World Resorts Malta Sliema Weather

Sliema Sea Water Temperature

Current Sea Water Temperature:
+67.6°F
Maximum Sea Water Temperature in May: 72.8°F
Minimum Sea Water Temperature in May: 62.4°F
Average water temperature in May: 67.5°F

Sea Water Temperature for the Last 10 Days:

May 16 67.6°F May 11 68.2°F
May 15 68.6°F May 10 67.0°F
May 14 68.4°F May 09 68.4°F
May 13 68.4°F May 08 66.6°F
May 12 68.4°F May 07 66.8°F

When is the Warmest Sea for Sliema?

According to our data for the last three years for Sliema the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Sliema was 83.2°F. The maximum and minimum values were 80.4°F and 85.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Sliema was 84.1°F. The maximum and minimum values were 82.4°F and 85.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Sliema was 84.3°F. The maximum and minimum values were 80.6°F and 87.0°F respectively.

Best Time to Visit Sliema
The most sunny months:
July 31 days
August 30 days
June 29 days
The most warm months:
August 88.5 °F
July 87.4 °F
September 84.5 °F
Warmest sea temperature:
August 84.6 °F
September 83.0 °F
July 82.3 °F
The most cold months:
February 60.0 °F
January 60.7 °F
March 61.4 °F
The most rainy months:
November 5 days
October 4 days
December 4 days
The most windy months:
January 17 mph
December 16 mph
February 16 mph

Sliema on the Weather Map

Malta Resorts:
NAME
Aura +66
Bugibba +66
Comino +66
Gozo +66
Marfa +66
Marsaskala +66
Mdina +66
Mellieha +66
Sliema +66
St Julians Bay +66
Valletta +66
24 Hours Weather Forecast
Sliema
Local time: 09:48
16 may, saturday
1200 66°F
SE
24 mph
1500 66°F
SE
27 mph
1800 66°F
SE
27 mph
2100 64°F
SE
26 mph
17 may, sunday
0000 64°F
S
20 mph
0300 64°F
S
14 mph
0600 64°F
SW
6 mph
0900 64°F
SW
4 mph