Air Temperature

Highest Maximum 25.9°C 16th
Lowest Maximum 16.3°C 1st
Highest Minimum 17.3°C 15th
Lowest Minimum 8.3°C 3rd

 

Mean Maximum 20.2°C
Mean Minimum 12.9°C
Mean 16.5°C

 

Relative Humidity

Highest Relative Humidity 96% Numerous days
Lowest Relative Humidity 40% 20th

 

Mean Relative Humidity 79.9%

 

Wind

Highest Gust 46.7km/h 15th and 16th

 

Mean Wind Speed 10.1km/h
Most Frequent Wind Direction Northwest

 

Atmospheric Pressure

Highest Atmospheric Pressure 1023.3hPa 9th
Lowest Atmospheric Pressure 1000.9hPa 1st

 

Mean Atmospheric Pressure 1015.5hPa

 

Precipitation

Total Rainfall During April 2025 32.3 mm
Total Rainfall Since Last 01/09 445.6 mm

 

Highest 24 Hour Total 31.1 mm 29th

 

Rain Days 3 days
Thunderstorm Days 2 days
Hail Days 1 day

 

Rainfall Events

1/5/2025 0.9 mm Isolated Shower; Distant Thunderstorms
7/5/2025 0.3 mm A.M. Isolated Light Rain
29/5/2025 31.1 mm A.M. Thunderstorms with Hail

 

April 2025 Compared to the Climate Means

  Climate Mean April 2025 Anomaly
Mean Maximum Temperature 19.8°C 20.2°C  +0.4°C
Mean Minimum Temperature 13.0°C 12.9°C -0.1°C
Mean Temperature 16.4°C 16.5°C +0.1°C
Mean Relative Humidity 77.1% 79.9% +2.8%
Mean Atmospheric Pressure 1016.3hPa 1015.5hPa -0.8hPa
Total Rainfall 17.0 mm 32.3 mm +15.3 mm
Total Rainfall Since Last 01/09 504.7 mm 445.6 mm -59.1 mm
Total Rain Days 6 days 3 days -3 days
Total Thunderstorm Days 1 day 2 days +1 day
Total Hail Days 0 days 1 day +1 day

 

April 2025 Ends on a Thundery Note

 

With a mean temperature of 16.5°C, temperatures in April were on par with the climate norm. Temperatures warmed up gradually as the month progressed, in typical springtime fashion.

With a national mean of 13.2 mm, rainfall was overall below the norm. In this case, simply looking at the national mean is extremely misleading. Whilst all localities in Malta featured rainfall values below the climate norm of 17.0 mm, all localities on the sister island of Gozo presented with rainfall totals well-above that. In fact, some localities registered double this! Having featured only a handful of showers over two separate days, April 2025 was relatively dry until the final few days. A zone of instability coupled with cold air aloft and an absence of wind at all levels of the atmosphere allowed for the formation of an area of thunderstorms around the central Mediterranean. Gozo was affected by a series of three thunderstorms in the hours between midnight and dawn on the 29th. The extreme west, southwest and south coasts of Malta were struck by one in the morning. This made for some very loud and frequent thunder which is more often synonymous with the autumn months. Hail was also observed in some localities. This meteorological event was probably the only one thing that stood out from an otherwise normal month.

Values for relative humidity, atmospheric pressure and wind showed marginal deviation from the climate norm; further confirming a typical April overall.

Rainfall Totals around the Maltese Islands in April 2025 (and since last September 1st):

Kerċem: 32.3 mm (445.6 mm)

Victoria: 39.2 mm (469.0 mm)

Marsalforn: 34.5 mm (402.7 mm)

Xewkija: 29.3 mm (331.2 mm)

Nadur: 32.8 mm (450.8 mm)

Għajnsielem: 28.0 mm (395.1 mm)

Mellieħa: 8.2 mm (340.6 mm)

Buġibba: 3.1 mm (333.3 mm)

Mġarr: 4.6 mm (416.1 mm)

Naxxar: 2.3 mm (427.7 mm)

Mosta: 0.3 mm (424.0 mm)

Dingli: 0.6 mm (533.2 mm)

Pembroke: 9.2 mm (446.5 mm)

Msida: 6.6 mm (509.4 mm)

Sliema: 11.9 mm (412.3 mm)

Valletta: 9.2 mm (425.0 mm)

Fgura: 4.8 mm (502.4 mm)

Żejtun: 5.6 mm (460.4 mm)

Żabbar: 8.0 mm (515.1 mm)

Imqabba: 14.0 mm (488.2 mm)

Siġġiewi: 2.3 mm (443.8 mm)

Żurrieq: 9.5 mm (444.1 mm)

Marsaxlokk: 2.8 mm (355.0 mm)

NATIONAL MEAN: 13.2 mm (431.7 mm)