Spring was much warmer this year in Hong Kong, with the city’s mean temperature of 22.9 degrees Celsius being the second highest on record for the period, the Hong Kong Observatory said Tuesday.

The HKO said the city’s mean minimum temperature of 22.9 C from March to May was also the second highest on record while the mean maximum temperature of 27.2 C was the fourth highest.

“Attributed to the well-above normal temperatures during March and April, the spring of this year from March to May was much warmer than usual,” the observatory said.

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It also said that the month of May was relatively hotter and cloudier than usual, with localized heavy rain.

The mean amount of cloud during the month was 82 percent, or 6 percent above normal, while rainfall over the territory was highly uneven, the observatory said.

The total rainfall recorded at the observatory last month was 227.2 millimeters, about 78 percent of the normal of 290.6 mm, while rainfall exceeded 500 mm over the North District. 

READ MORE: A relatively dry, mild March for Hong Kong 

The HKO said the accumulated rainfall recorded during the first five months of 2026 was 586.8 mm, slightly below the normal of 590.9 mm for the same period.

While the monthly mean temperature of 26.8 C was 0.5 degrees above normal, under the influence of a hot southerly airstream and an anticyclone aloft, Hong Kong had six consecutive hot nights starting from May 23, one of the highest on record for May, the HKO added.