Weather in Hong Kong - today, tomorrow and 14-day forecast

Right now temperatures across Hong Kong range from 29° to 30°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

Country values are the median of forecasts from 2 cities; the range shows local differences. Methodology.

Weather in Hong Kong's cities today

🌧️Kowloon 30°💧 0.6 mm 🌧️Sha Tin 29°💧 1.3 mm

Next days in Hong Kong

today🌧️ 29°💧 0.9 mm

Sun🌧️ 29°💧 7.4 mm

Mon🌧️ 29°💧 7.4 mm

Tue🌧️ 29°💧 0.9 mm

Wed🌧️ 29°💧 0.7 mm

Thu🌧️ 28°💧 3 mm

Fri🌤️ 28°💧 2.1 mm

Sat🌧️ 27°💧 0.4 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Thursday 10 Sept in Hong Kong, the forecast high is 28°C. Typical daytime temperatures at this time of year range from 29°C to 31°C, so it will be exceptionally cool. It is cooler than 95% of similar days.

Saturday 5 Sept

29°Cnear normal

usually 29°C–31°C

night: cooler than usual rain: typical rainfall wind: exceptionally light

Sunday 6 Sept

29°Ccooler than usual

usually 29°C–31°C

cooler than 71% of similar days

night: cooler than usual rain: more rain than usual wind: exceptionally light

Monday 7 Sept

29°Ccooler than usual

usually 29°C–31°C

cooler than 79% of similar days

night: warmer than usual rain: more rain than usual wind: lighter than usual

Tuesday 8 Sept

29°Ccooler than usual

usually 29°C–31°C

cooler than 75% of similar days

night: warmer than usual rain: typical rainfall wind: lighter than usual

Wednesday 9 Sept

29°Ccooler than usual

usually 29°C–31°C

cooler than 73% of similar days

night: near normal rain: less rain than usual wind: stronger than usual

Thursday 10 Sept

28°Cexceptionally cool

usually 29°C–31°C

cooler than 95% of similar days

night: exceptionally cool rain: typical rainfall wind: stronger than usual

Friday 11 Sept

28°Cexceptionally cool

usually 29°C–31°C

cooler than 93% of similar days

night: cooler than usual rain: typical rainfall wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 30°C by day. The coolest year was 1985 (28°C) and the warmest was 2009 (32°C). The current forecast averages 29°C - lower than in 87% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Hong Kong

Hong Kong - 14-day weather forecast infographic

Hong Kong 30 & 45-day weather - long-range outlook

Next 16 days · forecast

28°

around 26° at night · days with rain: 11

Weeks 3-4 · avg for September

32°

around 26° at night · rain chance 46%

Weeks 5-7 · avg for October

30°

around 24° at night · rain chance 24%

The 30 & 45-day outlook for Hong Kong: the next 16 days are a numerical forecast updated daily - on average 28° by day and 26° at night. Further out we rely on multi-year climate averages: around 32° in September, and about 30° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Hong Kong

Saturday5 September 2026

🌧️29°light rain

night 26° · evening 27° · rain 0.905 mm · humidity 74% · wind 3 m/s · clouds 19.5%

Sunday6 September 2026

🌧️29°moderate rain

night 25° · evening 27° · rain 7.365 mm · humidity 72% · wind 2 m/s · clouds 88.5%

Monday7 September 2026

🌧️29°light rain

night 27° · evening 28° · rain 7.359999999999999 mm · humidity 72.5% · wind 3 m/s · clouds 27%

Tuesday8 September 2026

🌧️29°light rain

night 27° · evening 28° · rain 0.88 mm · humidity 69% · wind 3 m/s · clouds 11.5%

Wednesday9 September 2026

🌧️29°light rain

night 26° · evening 28° · rain 0.67 mm · humidity 65% · wind 6 m/s · clouds 6%

Thursday10 September 2026

🌧️28°light rain

night 24° · evening 29° · rain 3.02 mm · humidity 63.5% · wind 7 m/s · clouds 50.5%

Friday11 September 2026

🌤️28°a few clouds

night 25° · evening 29° · rain 2.0700000000000003 mm · humidity 53.5% · wind 5 m/s · clouds 24%

Saturday12 September 2026

🌧️27°light rain

night 25° · evening 25° · rain 0.405 mm · humidity 61.5% · wind 8 m/s · clouds 74.5%

Sunday13 September 2026

🌧️22°moderate rain

night 23° · evening 23° · rain 10.935 mm · humidity 90% · wind 6 m/s · clouds 100%

Monday14 September 2026

🌧️25°moderate rain

night 26° · evening 26° · rain 15.81 mm · humidity 91% · wind 7 m/s · clouds 100%

Tuesday15 September 2026

🌧️28°light rain

night 26° · evening 28° · rain 4.154999999999999 mm · humidity 72.5% · wind 7 m/s · clouds 38.5%

Wednesday16 September 2026

🌧️29°light rain

night 26° · evening 28° · rain 2.8049999999999997 mm · humidity 68% · wind 6 m/s · clouds 9%

Thursday17 September 2026

🌧️27°moderate rain

night 26° · evening 26° · rain 12.015 mm · humidity 78% · wind 6 m/s · clouds 100%

Friday18 September 2026

🌤️28°scattered clouds

night 26° · evening 28° · rain 16.740000000000002 mm · humidity 76% · wind 8 m/s · clouds 34.5%

Saturday19 September 2026

🌧️28°light rain

night 26° · evening 27° · rain 2.37 mm · humidity 78.5% · wind 7 m/s · clouds 56.5%

Sunday20 September 2026

🌧️28°light rain

night 26° · evening 28° · rain 0.735 mm · humidity 76.5% · wind 6 m/s · clouds 100%

Sea temperature - Hong Kong

Water today

27°C

Week avg

27°C

Waves today

0.3 m

How's the water?

warm

16-day sea temperature forecast:

5.09 27°C6.09 27°C7.09 27°C8.09 27°C9.09 27°C10.09 27°C11.09 28°C12.09 27°C13.09 28°C

Average sea temperature through the year:

Jan 18°CFeb 19°CMar 21°CApr 24°CMay 27°CJun 29°CJul 29°CAug 29°CSep 29°COct 28°CNov 25°CDec 21°C

Beach	Water today	Water week avg	Waves	How's the water?
Sha Tin	29℃	29℃	0.2 m	very warm
Kowloon	27℃	27℃	0.3 m	warm

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Hong Kong

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Hong Kong	76.8	77.3	poor

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 09:00).

Hong Kong weather through the year

Hong Kong weather month by month - when is the best time to go?

January (19°)February (20°)March (23°)April (27°)May (30°)June (32°)July (32°)August (32°)September (32°)October (30°)November (26°)December (20°)

Weather in other countries in Asia

IndiaPeople's Republic of ChinaIndonesiaCambodiaIranBrunei

FAQ - Hong Kong weather

What is the weather like in Hong Kong today?

Today it is about 29° during the day and 26° at night, light rain.

How far ahead can I check the forecast for Hong Kong?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.