Air Temperature
| Highest Maximum | 22.8°C | 14th |
| Lowest Maximum | 13.2°C | 24th and 25th |
| Highest Minimum | 17.6°C | 13th |
| Lowest Minimum | 6.3°C | 31st |
| Mean Maximum | 17.8°C |
| Mean Minimum | 11.7°C |
| Mean | 14.7°C |
Relative Humidity
| Highest Relative Humidity | 94% | Numerous days |
| Lowest Relative Humidity | 42% | 11th |
| Mean Relative Humidity | 74.9% |
Wind
| Highest Gust | 62.8km/h | 24th |
| Mean Wind Speed | 12.7km/h |
| Most Frequent Wind Direction | Northwest |
Atmospheric Pressure
| Highest Atmospheric Pressure | 1034.0hPa | 17th |
| Lowest Atmospheric Pressure | 1003.7hPa | 24th |
| Mean Atmospheric Pressure | 1019.9hPa |
Precipitation
| Total Rainfall During December 2024 | 31.8 mm |
| Total Rainfall Since Last 01/09 | 216.5 mm |
| Highest 24 Hour Total | 8.4 mm | 27th |
| Rain Days | 14 days |
| Thunderstorm Days | 5 days |
| Hail Days | 4 days |
Rainfall Events
| 01/12/2024 | TR mm | Isolated Light Rain |
| 03/12/2024 | 1.8 mm | P.M. Isolated Thunderstorm |
| 04/12/2024 | 5.9 mm | A.M. and P.M. Isolated Thunderstorm |
| 05/12/2024 | 3.4 mm | Isolated Showers; Distant A.M. and P.M. Hailstorms |
| 06/12/2024 | 0.0 mm | Distant Isolated Showers |
| 07/12/2024 | 0.8 mm | Isolated Light Rain; Distant Isolated Showers |
| 08/12/2024 | 0.5 mm | Isolated Light Rain; Distant Isolated Showers |
| 15/12/2024 | 3.9 mm | P.M. Rain/Hail Showers; Distant Thunder |
| 16/12/2024 | 0.5 mm | A.M. Light Rain; Distant Thundery Rain/Hail Showers |
| 20/12/2024 | 0.3 mm | Isolated Showers |
| 21/12/2024 | 0.2 mm | Isolated Showers |
| 22/12/2024 | 0.5 mm | Isolated Showers |
| 23/12/2024 | 3.3 mm | Isolated Showers with Hail; Distant Hailstorms and Thunder |
| 24/12/2024 | 0.3 mm | Light Rain; Distant Isolated Showers |
| 25/12/2024 | 0.0 mm | Distant P.M. Isolated Showers |
| 26/12/2024 | 1.9 mm | P.M. Isolated Showers |
| 27/12/2024 | 8.5 mm | A.M. Isolated Showers |
| 28/12/2024 | 0.0 mm | Distant Light Rain |
| 30/12/2024 | TR mm | Dew |
December 2024 Compared to the Climate Means
| Climate Mean | December 2024 | Anomaly | |
| Mean Maximum Temperature | 17.2°C | 17.8°C | +0.6°C |
| Mean Minimum Temperature | 11.9°C | 11.7°C | -0.2°C |
| Mean Temperature | 14.5°C | 14.7°C | +0.2°C |
| Mean Relative Humidity | 78.9% | 74.9% | -5.0% |
| Mean Atmospheric Pressure | 1018.0hPa | 1019.9hPa | +1.9hPa |
| Total Rainfall | 83.0 mm | 31.8 mm | -51.2 mm |
| Total Rainfall Since Last 01/09 | 316.1 mm | 216.5 mm | -99.6 mm |
| Total Rain Days | 13 days | 14 days | +1 day |
| Total Thunderstorm Days | 3 days | 5 days | +2 days |
| Total Hail Days | 2 days | 4 days | +2 days |
Significantly Drier than Average in December 2024
December 2024 became the tenth consecutive drier-than-average December. With a measly 31.8 mm measured over the course of the month, December brought with it far less than half the climate norm. December used to be the year’s wettest month. The national mean stood at a similar 34.2 mm. There were 14 days of rain at our weather station. Thunder was heard on 5 days while hail was recorded on 4 days. Nationally, there were 18 days when at least one shower was measured in one part or another of the island. That is a staggering amount, when considering that rainfall totals were so poor. This is because rain came from isolated showers rather than extensive, widespread rain-bearing low pressure systems.
Mean atmospheric pressure stood at 1019.9hPa. This is higher than average and could be explained by the constant close proximity of an anticyclone.
December 2024 was overall slightly warmer than the norm. The mean temperature of 14.7°C was 0.2°C above the norm. This comprised a mean maximum temperature of 17.8°C which was 0.6°C above the climatic mean and a mean minimum temperature of 11.7°C which was 0.2°C below the norm. This wide range in anomalies could be explained by the temperature variations on days under anticyclonic influence. On days with fine weather, days were warm but nights were cold. The 11th, with a 20.1°C maximum (2.9°C warmer than average) and a 7.6°C minimum (4.3°C colder than average), was one of these various instances. With a mean temperature of 11.2°C, Christmas Eve was December’s coldest day overall. Christmas Eve and Christmas Day shared the title for the lowest maximum temperature. At 13.2°C, it is also the lowest maximum temperature for the whole of 2024. New Year’s Eve, on the other hand, was the month’s coldest night. The mercury dipped to 6.3°C that night.
As expected, December was a windswept month. The wind, from a predominantly Northwest direction, reached at least Force 6 on almost half of all days. The windiest days were those just before Christmas Day. The highest wind gust registered was of 62.8 km/h on the 24th.
Rainfall Totals around the Maltese Islands in December 2024 (and since last September 1st):
Kerċem: 31.8 mm (216.5 mm)
Victoria: 32.8 mm (220.7 mm)
Marsalforn: 22.9 mm (171.6 mm)
Xewkija: 22.9 mm (117.8 mm)
Nadur: 25.5 mm (204.3 mm)
Għajnsielem: 32.9 mm (148.1 mm)
Mellieħa: 17.7 mm (126.5 mm)
Buġibba: 14.0 mm (130.3 mm)
Mġarr: 31.2 mm (156.3 mm)
Naxxar: 24.4 mm (184.6 mm)
Mosta: 23.8 mm (185.8 mm)
Dingli: 40.2 mm (198.4 mm)
Pembroke: 24.8 mm (184.4 mm)
Msida: 52.5 mm (240.4 mm)
Sliema: 35.1 mm (172.1 mm)
Valletta: 43.0 mm (186.4 mm)
Fgura: 51.4 mm (232.5 mm)
Żejtun: 44.9 mm (195.2 mm)
Żabbar: 44.0 mm (212.2 mm)
Imqabba: 51.7 mm (201.4 mm)
Siġġiewi: 50.3 mm (175.3 mm)
Żurrieq: 48.1 mm (183.5 mm)
Marsaxlokk: 37.1 mm (151.8 mm)
NATIONAL MEAN: 34.2 mm (183.3 mm)