Hong Kong has recorded six consecutive "hot nights" this May, matching the city's previous record for the month [1].
This streak indicates an intensifying heatwave that prevents nighttime cooling, which can increase health risks for residents and strain urban energy grids.
The Hong Kong Observatory defines a "hot night" as one where the minimum temperature remains at or above 28°C [1]. A spokesperson for the Observatory said the minimum temperature at the headquarters has stayed at or above that threshold for six straight days [1].
This current streak equals a record set between May 16 and May 21, 2021, when the city also experienced six consecutive hot nights [1]. The persistence of high temperatures is attributed to an intense heatwave currently affecting the region [1].
Weather officials are monitoring the situation to see if the streak will extend. "If another hot night occurs, Hong Kong will set a new May record with seven consecutive nights of minimum temperatures at or above 28°C," a spokesperson said [2].
High nighttime temperatures often prevent the human body from recovering from daytime heat exposure. The Observatory continues to track the heatwave's impact on the city's climate patterns.
“Hong Kong has recorded six consecutive "hot nights" this May, matching the city's previous record.”
The matching of a five-year-old record suggests a trend of increasing nighttime heat retention in Hong Kong. When minimum temperatures fail to drop, the 'urban heat island' effect is often amplified, making it harder for the city to cool down and increasing the reliance on air conditioning, which further contributes to outdoor heat.
