Sea temperature Sliema today
Updated 11.09.2026 19:25
Sea temperature
30,1°C
Waves 0,6 m · period 5,6 s
Wave height
0,6 m
Period 5,6 s
Wave direction
S
172°
Wind waves
0,0 m
Sea current
0,6 km/h
Direction W
Swell height
0,5 m
Swell direction
S
161°
Air temperature
30°C
Clear · Feels like: 35°C
Wind
6 km/h
E 94°
Wind gusts
16 km/h
Surface pressure 1014 hPa
Humidity
67 %
UV indeks
0,1
Low
Visibility
38,1 km
Cloud cover
22 %
Weather and sea for the next 7 days - Sliema
Today, 11.9
Cloudy
Air
34°C
min 25°C
Sea temperature
30,3°C
min 29,5°C
Tomorrow, 12.9
Cloudy
Air
33°C
min 26°C
Sea temperature
30,0°C
min 29,6°C
Sun, 13.9
Light showers
Air
29°C
min 24°C
Sea temperature
29,9°C
min 29,4°C
Mon, 14.9
Light showers
Air
25°C
min 23°C
Sea temperature
29,3°C
min 29,3°C
Tue, 15.9
Cloudy
Air
27°C
min 23°C
Sea temperature
29,3°C
min 29,1°C
Wed, 16.9
Partly cloudy
Air
28°C
min 23°C
Sea temperature
29,3°C
min 28,9°C
Thu, 17.9
Cloudy
Air
28°C
min 25°C
Sea temperature
28,9°C
min 28,8°C
Sea temperature Sliema by month
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature | 17° | 16° | 16° | 17° | 19° | 24° | 27° | 27° | 27° | 24° | 22° | 19° |
When to swim in Sliema?
Swimming season
May – Dec
Sea temperature above 18 °C
Warmest month
Jul
Average 27°C
Coldest month
Feb
Average 16°C
Annual average
21.4°C
Average sea temperature