Air Temperature

Highest Maximum 27°C 23rd
Lowest Maximum 15°C 1st and 2nd
Highest Minimum 16°C 25th
Lowest Minimum 10°C 1st and 8th

 

Mean Maximum 17.0°C
Mean Minimum 11.8°C
Mean 13.9°C

 

Relative Humidity

Highest Relative Humidity 78% 6th
Lowest Relative Humidity 24% 23rd

 

Mean Relative Humidity 72.0% ed-hrvatski.com

 

Atmospheric Pressure

Highest Atmospheric Pressure 1024.1hPa 19th
Lowest Atmospheric Pressure 1013.2hPa 21st

 

Mean Atmospheric Pressure 1019.3hPa

 

Wind

Highest Gust 68km/h 19th

 

Mean Wind Speed 12km/h
Mean Gust Speed 31km/h
Mean Wind + Gust Speed 21.5km/h
Most Frequent Wind Direction Southeast

 

Precipitation

Total Rainfall During April 2019 27.5 mm
Total Rainfall Since Last 01/09 482.6 mm

 

Highest 24 Hour Total 19.1 mm 5th

 

Rain Days 5
Thunderstorm Days 0
Hail Days 2

 

Rainfall Events

04/04/2019 1.8 mm Light Rain
05/04/2019 19.1 mm Thunderstorm
07/04/2019 4.3 mm Isolated Showers
14/04/2019 2.0 mm Isolated Showers
22/04/2019 0.3 mm Thunderstorm


April 2019 Compared to the Climate Means 

  Climate Mean April 2019 Anomaly
Mean Maximum Temperature 19.6°C 17.0°C -2.6°C
Mean Minimum Temperature 12.5°C 11.8°C -0.7°C
Mean Temperature 16.2°C 13.9°C -2.3°C
Mean Relative Humidity 77% 72% -5%
Mean Atmospheric Pressure 1014.3hPa 1019.3hPa +5.0hPa
Mean Wind Speed 18.9 km/h 21.3km/h +2.4km/h
Most Frequent Wind Direction Northwest Southeast 135°
Total Rainfall 23.2 mm 27.5 mm +4.3 mm
Total Rainfall Since Last 01/09 561.7 mm 474.2 mm -87.5 mm
Total Rain Days 6 5 -1
Total Thunderstorm Days 1 2 +1
Total Hail Days 1 0 0


Cooler and Drier in April 2019

The air was significantly cooler than average over much of last month. Overall, air temperatures were 2.3°C colder than normal. The biggest difference from the average was registered by the daytime temperature (2.6°C cooler than usual). Nights were not as cold (0.7°C cooler than the norm). This could attributed to the fact that April was characterised by several days of overcast skies and airborne fine desert sand. In this case, light from the Sun would be reflected off the clouds and airborne fine desert sand back into space, preventing the air at ground level from heating up. Finally, temperatures returned to normal in the final week of April. The hottest day was the 23rd with a 27°C high. Conversely, the coldest was at 10°C  on the 1st and 8th.

Total rainfall measured at our weather station in Għarb, at 27.5 mm was below the mean for this time of year. April started off promisingly with regards to precipitation. 25.2 mm (or 91%) of April’s rainfall total fell in the first week of the month. The rest fell in light showers which deposited copious amounts of fine desert sand.

A number of windy days dotted the month of April. Winds were significantly stronger than the average for April. The wind reached Force 6 or stronger on 10 days. This is the Maltese Islands were caught up between high and low pressure systems several times. The strongest gust was of 68 km/h, registered on the 19th. The prevailing wind direction was from the Southeast. This was the result of successive north African low pressure systems passing by us.