Air Temperature
| Highest Maximum | 22.5°C | 22nd |
| Lowest Maximum | 15.4°C | 6th |
| Highest Minimum | 16.6°C | 30th |
| Lowest Minimum | 6.7°C | 7th |
| Mean Maximum | 18.7°C |
| Mean Minimum | 12.6°C |
| Mean | 15.7°C |
Relative Humidity
| Highest Relative Humidity | 94% | Numerous days |
| Lowest Relative Humidity | 39% | 19th |
| Mean Relative Humidity | 79.5% |
Wind
| Highest Gust | 48.3km/h | 3rd |
| Mean Wind Speed | 12.3km/h |
| Most Frequent Wind Direction | West Northwest |
Atmospheric Pressure
| Highest Atmospheric Pressure | 1023.4hPa | 28th |
| Lowest Atmospheric Pressure | 999.0hPa | 3rd |
| Mean Atmospheric Pressure | 1014.3hPa |
Precipitation
| Total Rainfall During April 2023 | 29.1 mm |
| Total Rainfall Since Last 01/09 | 547.2 mm |
| Highest 24 Hour Total | 15.8 mm | 2nd |
| Rain Days | 4 days |
| Thunderstorm Days | 1 day |
| Hail Days | 0 days |
Rainfall Events
| 02/04/2023 | 15.8 mm | P.M. Rainy |
| 03/04/2023 | 4.2 mm | A.M. Showers |
| 05/04/2023 | 0.3 mm | Light Rain; Distant Thunder |
| 16/04/2023 | 8.8 mm | Rainy |
April 2023 Compared to the Climate Means
| Climate Mean | April 2023 | Anomaly | |
| Mean Maximum Temperature | 19.8°C | 18.7°C | -1.1°C |
| Mean Minimum Temperature | 13.0°C | 12.6°C | -0.4°C |
| Mean Temperature | 16.4°C | 15.7°C | -0.7°C |
| Mean Relative Humidity | 76.7% | 79.5% | +2.8% |
| Mean Atmospheric Pressure | 1016.3hPa | 1014.3hPa | -2.0hPa |
| Total Rainfall | 16.6 mm | 29.1 mm | +12.5 mm |
| Total Rainfall Since Last 01/09 | 506.9 mm | 547.2 mm | +40.3 mm |
| Total Rain Days | 6 days | 4 days | -2 days |
| Total Thunderstorm Days | 1 day | 1 day | / |
| Total Hail Days | 0 days | 0 days | / |
Colder and Wetter in April 2023
Stormy weather ushered in April, the second month of meteorological spring. The 2nd day of the month accounted for the highest value of precipitation in a day. A period of steady rainfall produced 15.8 mm of rainfall on the day. Another two days of rain followed that same week, with the 5th also being the only day of the month with thunder. There was only one day with rain in the rest of the month. Despite the number of rainy days being less than the norm, the total rainfall measured over the course of April 2023 stood at 29.1 mm, 75% more than what one would normally anticipate.
It was also a colder than average month. The mean temperature of 15.7°C was 0.7°C cooler than the climate norm. The difference from the mean was by far more prominent in the mean maximum temperatures. The mean maximum temperature of 18.7°C was just over a degree cooler. Much of April kept locals guessing when the first taste of spring would be felt. In fact, the minimum temperature in the early hours of the 7th dipped to a chilly 6.7°C. The final week and a half of the month brought with it some noticeably warmer temperatures, however, with the 20th accounting for April 2023’s warmest maximum temperature of 22.5°C.
No gale events were recorded last month. The highest wind gust registered at 52km/h (Force 7) from a north-westerly direction. This was after the passage of a cold front on the 3rd. The wind reached Force 6 on only three other occasions in the following three weeks, culminating in a significantly calm month overall.
Rainfall Totals around the Maltese Islands in April 2023 (and since last September 1st):
Għarb: 29.1 mm (547.2 mm)
Victoria: 24.7 mm (483.5 mm)
Xewkija: 25.6 mm (478.4 mm)
Nadur: 23.1 mm (470.1 mm)
Marsalforn: 20.9 mm (494.7 mm)
Mellieħa: 24.4 mm (442.1 mm)
Buġibba: 23.4 mm (522.4 mm)
Mġarr: 33.2 mm (481.0 mm)
Naxxar: 27.7 mm (616.7 mm)
Mosta: 29.4 mm (591.8 mm)
Dingli: 31.9 mm (507.7 mm)
Msida: 24.4 mm (683.7 mm)
Valletta: 17.2 mm (498.8 mm)
Imqabba: 30.0 mm (560.7 mm)
Żabbar: 23.3 mm (561.4 mm)
Birżebbuġa: 24.3 mm (465.5 mm)
Sliema: 24.8 (647.4 mm)
NATIONAL MEAN: 25.7 mm (532.4 mm)