Highest temperature in Hong Kong on August 19?

Platform comparison

Market context

The Hong Kong Observatory will record the highest temperature in Hong Kong on 19 August 2026, measured in degrees Celsius to one decimal place. This figure will determine which temperature band resolves as correct, with the Hong Kong Observatory's "Absolute Daily Max" entry in their Daily Extract serving as the definitive source once published.

August in Hong Kong typically sees peak summer heat. Historical data from the Observatory shows daily maxima in mid-August commonly range between 32°C and 34°C, though readings occasionally exceed 35°C during particularly intense heat waves. The 19th falls within the latter part of the summer monsoon season, when afternoon thunderstorms can develop but do not necessarily suppress peak temperatures. Comparable August dates over the past decade provide the most reliable benchmark: the Observatory's records indicate variability of roughly 2–3°C around the seasonal mean for this period, suggesting outcomes across a fairly wide band remain plausible.

Traders should monitor tropical cyclone activity in the Western Pacific during early to mid-August 2026, as storm systems can alter wind patterns and cloud cover significantly. The timing of the southwest monsoon's intensity and any upper-level atmospheric disturbances will influence whether conditions favour sustained heat or cloud development. The Hong Kong Observatory publishes extended forecasts approximately two weeks ahead; their 10-day outlook released around 9 August will offer the first concrete meteorological guidance. Resolution cannot occur until the Observatory finalises and publishes the Daily Extract for 19 August, typically within days of the date itself.

Methodology

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