Air Temperature

Highest Maximum 37°C 9th
Lowest Maximum 22°C 1st
Highest Minimum 25°C 10th
Lowest Minimum 15°C 1st

 

Mean Maximum 30.7°C
Mean Minimum 21.5°C
Mean 26.1°C

 

Relative Humidity

Highest Relative Humidity 73% 18th, 24th, 25th and 26th
Lowest Relative Humidity 5% 22nd

 

Mean Relative Humidity 50.5%

 

Atmospheric Pressure

Highest Atmospheric Pressure 1022.4hPa 8th
Lowest Atmospheric Pressure 1009.1hPa 12th

 

Mean Atmospheric Pressure 1015.6hPa

 

Wind

Highest Gust 50km/h 15th

 

Mean Wind Speed 6.7km/h
Mean Gust Speed 21.0km/h
Mean Wind + Gust Speed 13.9km/h
Most Frequent Wind Direction South Southwest

 

Precipitation

Total Rainfall During June 2019 0.0 mm
Total Rainfall Since Last 01/09 503.7 mm

 

Highest 24 Hour Total 0.0 mm

 

Rain Days 0
Thunderstorm Days 0
Hail Days 0

 

June 2019 Compared to the Climate Means 

  Climate Mean June 2019 Anomaly
Mean Maximum Temperature 28.2°C 30.7°C +2.5°C
Mean Minimum Temperature 19.3°C 21.5°C +2.2°C
Mean Temperature 23.8°C 26.1°C +2.3°C
Mean Relative Humidity 71% 50.5% -20.5%
Mean Atmospheric Pressure 1015.8hPa 1015.6hPa -0.2hPa
Mean Wind Speed 15.2 km/h 13.9km/h -1.3km/h
Most Frequent Wind Direction Northwest South Southwest -112.5°
Total Rainfall 4.4 mm 0.0 mm -4.4 mm
Total Rainfall Since Last 01/09 576.7 mm 503.7 mm -73.0 mm
Total Rain Days 1 0 -1
Total Thunderstorm Days 0 0 0
Total Hail Days 0 0 0


June 2019 was the Hottest June on Record

With a monthly average temperature of 26.1°C, June 2019 was the hottest June on record in the Maltese Islands. It broke the record set in June 2003. The average maximum temperature was calculated at 30.7°C, a solid 2.5°C higher than the average for a normal June. Nights were also rather warm. The average minimum temperature of 21.5°C was 2.2°C warmer than what one would expect in a typical June. Using the national criteria for a heatwave, we can conclude that the Maltese Islands experienced two heatwaves during this month. The first lasted for a period of four days, from 09/06/2019 to 12/06/2019. The maximum temperature measured during the first heatwave was of 37°C on 09/06/2019. The second heatwave also lasted for four days, from 21/06/2019 till 24/06/2019. The maximum temperature measured during the second heatwave was of 35°C on 24/06/2019. Despite this, it was the persistence of above average temperatures, rather than the hot temperatures themselves, that led to this June becoming the hottest on record. Another thing worth noting was the unseasonably cool first week of June. With an average temperature of just 20.9°C, the first week of June was the coolest on record.

For the first time in a number of years, June 2019 was also completely dry. Not a drop of rain was measured at our weather station in Għarb. Thunder was not heard at any point in June.

Humidity was also extremely low when compared to the norm. This was due to the relentless intense heat over the course of this month.

Atmospheric pressure conformed with the mean for this time of year, as normal anticyclonic behaviour was noted.

The wind was also lighter than usual. The strongest gust was measured at 50.0 km/h from the East Southeast on the 14th, during a brief break in between the two heatwaves.