As clouds gather over Hong Kong, residents are bracing for a day of showers and thunderstorms, according to the latest forecast from the Hong Kong Observatory. The unsettled weather, driven by an easterly airstream, is expected to continue through Thursday, May 29, before gradually subsiding by Friday, May 30.
The Observatory forecasts a high of approximately 28 degrees Celsius (82 degrees Fahrenheit) today, May 28, 2025, with moderate east to southeasterly winds. These winds may occasionally strengthen, particularly in offshore areas and on higher ground, posing potential challenges for coastal and elevated regions. The easterly airstream is bringing significant moisture, contributing to the cloudy conditions and the likelihood of thunderstorms later in the day.
The forecast indicates that occasional showers and thunderstorms will persist through Thursday, with conditions expected to stabilize by Friday. This pattern aligns with Hong Kong’s subtropical climate, where late May marks the onset of the rainy season, often accompanied by increased humidity and frequent showers. Historical data from sources like Weather Spark suggest that average high temperatures in May range from 26°C to 29°C (79°F to 84°F), making today’s forecast of 28°C typical for this time of year.
Looking further ahead, the Observatory’s nine-day weather report predicts brief periods of sunshine interspersed with occasional showers early next week. However, as a southwesterly airstream develops over southern China, the city is likely to experience hotter and more showery conditions by midweek. This shift reflects the broader seasonal transition into summer, with increased rainfall and humidity, as noted in climate summaries from the Hong Kong Observatory. The seasonal forecast for May to July 2025 indicates normal to above-normal temperatures and a slightly higher chance of normal to below-normal rainfall, though rainstorms and localized heavy rain remain possible.
Residents are encouraged to monitor updates from the Hong Kong Observatory and take precautions, particularly during outdoor activities. Heavy rain and strong winds can pose risks, especially in areas prone to flooding or exposed to gusts. The Observatory’s data also highlights the start of the typhoon season in May, though the probability of a typhoon affecting Hong Kong this early remains low, according to sources like China Highlights.
The combination of warm temperatures, high humidity, and frequent showers underscores the need for preparedness as Hong Kong navigates this dynamic weather period. The Observatory will continue to monitor conditions and provide timely updates to ensure public safety.
