Weather in Hong Kong in October

How October compares

October is the 6th warmest month of the year in Hong Kong and ranks 44th of 134 destinations we compare for October - see where else is hot in October. Against London's average high of 14.6°C in October, Hong Kong is 12.5°C warmer by day and 14.4°C warmer at night.

Daytime and night-time in October

The typical October day in Hong Kong peaks at 27.1°C, but that is an average: the warmest 10% of days reach 29.1°C or more. About 92% of days top 25°C and 1 in 29 pass 30°C. Nights average 22.8°C; one night in ten drops to 20.1°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest October day here reached 32.7°C (2019-10-01) and the coldest night 14.6°C (2010-10-28).

Rain in October

Some rain (4-8 rainy days): about 7 days with 1 mm or more, 70 mm in total. Year to year it varies a lot - the wettest October was 2016 with 252 mm, the driest 2004 with 3 mm. Humidity averages 75%.

Sea temperature in October

The sea averages 26.7°C - warm enough to swim (22°c+). Depending on the year it ranges from 26.2°C to 27.3°C. For the warmest sea here, come in August (28.5°C).

Sunshine and daylight

Around 6.4 hours of sunshine a day (estimated from cloud cover), 11.5 hours of daylight: the sun rises about 06:20 and sets about 17:58 local time in mid-October. Average cloud cover is 44%.

Is October a good time to visit Hong Kong?

Yes - it is one of the better months: hot days, manageable rain. The best months for Hong Kong on our scoring are November, October, September; months averaging 25°C or more: Apr, May, Jun, Jul, Aug, Sep, Oct.

Expect summer warmth, not a UK autumn

Light, breathable clothes should do most of the work in October. Days reach 25°C on 92% of occasions, so plan on feeling warm rather than hoping for the occasional warm afternoon. Humidity averages 75%, which can make walking feel sticky; leave room for breaks at midday rather than filling every daylight hour. The catch is that evenings offer only modest cooling, with average lows of 22.8°C. A light layer is sensible for cooler spells, but heavy autumn clothing is unlikely to earn its luggage space. October suits travellers who enjoy warmth, though it may still feel too hot if you prefer cool conditions for exploring.

Keep outdoor plans flexible

Rain is a consideration, not a reason to rule October out. About 7 days have measurable rain, so carry a compact umbrella or light waterproof and keep outdoor plans movable. That figure does not mean those days are complete washouts, nor does it guarantee an uninterrupted dry stretch. Rainfall can vary considerably between years, so a forecast closer to departure is more useful for arranging particular days. There are about 6.4 hours of sunshine within 11.5 hours of daylight: enough to make sun protection relevant, but not a promise of clear skies throughout. Choose October for a warm holiday with some weather flexibility, rather than guaranteed sunshine.