Colder and Drier in April 2022
Air Temperature
Highest Maximum | 24.1°C | 26th |
Lowest Maximum | 14.7°C | 3rd |
Highest Minimum | 15.8°C | 29th |
Lowest Minimum | 6.6°C | 11th |
Mean Maximum | 18.6°C |
Mean Minimum | 12.6°C |
Mean | 15.6°C |
Relative Humidity
Lowest Relative Humidity | 36% | 27th |
Mean Relative Humidity | 74.9% |
Wind
Highest Gust | 62.8km/h | 14th |
Mean Wind Speed | 14.2km/h |
Most Frequent Wind Direction | Northwest |
Atmospheric Pressure
Highest Atmospheric Pressure | 1028.2hPa | 25th |
Lowest Atmospheric Pressure | 996.1hPa | 21st |
Mean Atmospheric Pressure | 1014.1hPa |
Precipitation
Total Rainfall During April 2022 | 4.7 mm |
Total Rainfall Since Last 01/09 | 556.2 mm |
Highest 24 Hour Total | 1.8 mm | 16th |
Rain Days | 6 days |
Thunderstorm Days | 0 days |
Hail Days | 0 days |
Rainfall Events
01/04/2022 | 0.5 mm | Light Rain |
07/04/2022 | 0.3 mm | Light Rain |
15/04/2022 | 0.8 mm | Light Rain |
16/04/2022 | 1.8 mm | Isolated Shower |
17/04/2022 | 0.8 mm | Isolated Shower |
18/04/2022 | 0.5 mm | Light Rain |
April 2022 Compared to the Climate Means
Climate Mean | April 2022 | Anomaly | |
Mean Maximum Temperature | 19.6°C | 18.6°C | -1.0°C |
Mean Minimum Temperature | 12.5°C | 12.6°C | +0.1°C |
Mean Temperature | 16.1°C | 15.6°C | -0.5°C |
Mean Relative Humidity | 77% | 75.7% | -1.3% |
Mean Atmospheric Pressure | 1014.3hPa | 1014.1hPa | -0.2hPa |
Total Rainfall | 23.2 mm | 4.7 mm | -18.5 mm |
Total Rainfall Since Last 01/09 | 561.7 mm | 556.2 mm | -5.5 mm |
Total Rain Days | 6 days | 6 days | / |
Total Thunderstorm Days | 1 days | 0 days | -1 day |
Total Hail Days | 1 day | 0 days | -1 day |
COOLER and DRIER in APRIL 2022
April 2022 maintained the trend of cooler than average weather set at the start of winter. The transition to the warmer months is slower and continues to lag slightly behind. With a mean temperature of 15.6°C, April 2022 was half a degree cooler than the norm, with the difference from the mean being more pronounced in maximum temperatures. The temperature started exceeding the 20°C mark towards the last week of the month. The coldest temperature last month was measured in the very early hours of the 11th, when the mercury dipped to 6.6°C. This was the only ‘extreme’ recorded in April 2022.
April 2022 became the fourth consecutive month to register below-average precipitation. The meagre 4.7 mm measured by our weather station was a mere 20% of the climate norm. At 2.0 mm, the national precipitation total stood at an even lower level. This fell over six days. Much of it was in the form of light rain that deposited fine desert sand. All zones of low pressure that traversed the central Mediterranean last month were of Sahara Desert origins. In fact, half of all days in April 2022 were characterized by airborne fine desert sand.
The wind blew from the Sirocco quarter for much of the month as well. This too is a tell-tale sign of the presence of north African low pressure systems. The wind gusted up to Force 6 or stronger on a staggering 12 days. The vast majority of these windy days were characterized by the Sirocco. The highest wind gust was registered at 62.8 km/h on the 14th, during a gale that forced the cancellation of a number of Maundy Thursday and Good Friday plans.
The meteorological situation last month was as one would expect in a typical April. The only difference was the enhancement of weather conditions. A number of ridges of high pressure developed across the central Mediterranean from time to time. These were very short-lived as they were repeatedly forced to dissipate or migrate eastwards by the zones of low pressure that persistently emerged from the Gulf of Gabes.
Rainfall Totals around the Maltese Islands in April 2022 (and since last September 1st):
Għarb: 4.7 mm (556.2 mm)
Victoria: 4.4 mm (576.8 mm)
Xewkija: 0.5 mm (534.6 mm)
Nadur: 3.0 mm (610.5mm)
Marsalforn: 3.4 mm (613.4 mm)
Mellieħa: 1.0 mm (537.4 mm)
Buġibba: 1.6 mm (610.0 mm)
Mġarr: 1.3 mm (579.3 mm)
Naxxar: 3.6 mm (622.9 mm)
Mosta: 2.8 mm (526.1 mm)
Dingli: 1.4 mm (481.3 mm)
Msida: 0.8 mm (584.2 mm)
Valletta: 0.3 mm (363.3 mm)
Imqabba: 1.5 mm (564.8 mm)
Żabbar: 1.0 mm (583.5 mm)
Birżebbuġa: 1.5 mm (422.7 mm)
Sliema: 1.3 mm (568.3 mm)
NATIONAL MEAN: 2.0 mm (549.5 mm)