The first three weeks of June were cloudy and showery while the rest of the month was mostly sunny and very hot, the Hong Kong Observatory (HKO) said today.

Overall, the month was cloudier than usual. The mean amount of cloud in the month was 83%, 6% above normal. The duration of bright sunshine in the month was 116.1 hours, 20% below the normal figure.

The monthly mean temperature was 28.6 degrees Celsius, 0.3 degrees above the normal figure. The temperature dropped to 24 degrees Celsius on June 15, the lowest of the month. The highest temperature of the month was 34.4 degrees Celsius, recorded on June 28.

While more than 450 mm of rainfall was recorded over Tsuen Wan, Tai Po and Sai Kung districts, the monthly rainfall recorded by the HKO was only 349.2 mm, 29% below the normal figure.

The HKO issued the second Red Rainstorm Warning Signal of the year during heavy rain on the morning of June 8.

On June 29, an area of low pressure over the central part of the South China Sea developed into a tropical depression. It intensified into a tropical storm named Chaba on June 30, and rainfall exceeded 50 mm over Hong Kong Island, Kowloon and the eastern part of the New Territories that day.