Hong Kong Observatory Logo

9-day Weather Forecast

Bulletin updated at 11:30 HKT 21/Sep/2026

9-Day Weather Forecast

General Situation:
The northeast monsoon will affect the coast of southern
China gradually tomorrow. Meanwhile, upper-air disturbances
will bring showers to the region. Under the persistent
influence of the monsoon, the weather will be mainly fine
over Guangdong in the middle and latter parts of this week.
It will be dry during the day. With the monsoon moderating,
it will be hot with isolated showers over Guangdong over the
weekend. Tropical Cyclone Dujuan will move across the seas
south of Honshu of Japan today. Besides, a tropical cyclone
is expected to develop gradually over the western North
Pacific to the east of the Philippines in the next couple of
days, and move in the general direction of the seas east of
Luzon in the latter part of this week. However, its
subsequent movement remains uncertain.

Date/Month 22/9 (Tuesday)
Wind: Light winds force 2, becoming east force 3 to 4.
Weather: Mainly cloudy with a few showers. Sunny intervals
during the day.
Temp Range: 27 - 32 C
R.H. Range: 65 - 95 Per Cent
PSR: Medium Low

Date/Month 23/9(Wednesday)
Wind: East force 4.
Weather: Sunny periods and isolated showers.
Temp Range: 27 - 31 C
R.H. Range: 65 - 90 Per Cent
PSR: Low

Date/Month 24/9(Thursday)
Wind: East force 4.
Weather: Mainly fine. Cloudy periods in the morning and at
night.
Temp Range: 27 - 32 C
R.H. Range: 55 - 85 Per Cent
PSR: Low

Date/Month 25/9(Friday)
Wind: East force 3 to 4.
Weather: Mainly fine. Cloudy periods in the morning and at
night.
Temp Range: 27 - 32 C
R.H. Range: 55 - 85 Per Cent
PSR: Low

Date/Month 26/9(Saturday)
Wind: East force 2 to 3.
Weather: Mainly cloudy with isolated showers. Sunny periods
during the day.
Temp Range: 27 - 32 C
R.H. Range: 65 - 90 Per Cent
PSR: Low

Date/Month 27/9(Sunday)
Wind: Light winds force 2.
Weather: Sunny periods and isolated showers.
Temp Range: 27 - 32 C
R.H. Range: 60 - 90 Per Cent
PSR: Low

Date/Month 28/9(Monday)
Wind: Light winds force 2.
Weather: Mainly fine. Very hot during the day.
Temp Range: 27 - 33 C
R.H. Range: 55 - 85 Per Cent
PSR: Low

Date/Month 29/9(Tuesday)
Wind: West force 2 to 3.
Weather: Mainly fine. Very hot during the day. Isolated
showers later.
Temp Range: 27 - 33 C
R.H. Range: 60 - 90 Per Cent
PSR: Low

Date/Month 30/9(Wednesday)
Wind: Northwest force 4, occasionally force 5 offshore.
Weather: Mainly cloudy with a few showers. Sunny intervals
during the day.
Temp Range: 27 - 32 C
R.H. Range: 70 - 95 Per Cent
PSR: Medium

Sea surface temperature at 7 a.m.21/9/2026 at North Point
was 27 degrees C.

Soil temperatures at 7 a.m.21/9/2026 at the Hong Kong
Observatory:
0.5 M below surface was 30.0 degrees C.
1.0 M below surface was 29.9 degrees C.

Weather Cartoons for 9-day weather forecast
Day 1 cartoon no. 54 - Sunny Intervals with Showers
Day 2 cartoon no. 51 - SUNNY PERIODS
Day 3 cartoon no. 51 - SUNNY PERIODS
Day 4 cartoon no. 51 - SUNNY PERIODS
Day 5 cartoon no. 51 - SUNNY PERIODS
Day 6 cartoon no. 51 - SUNNY PERIODS
Day 7 cartoon no. 50 - SUNNY
Day 8 cartoon no. 51 - SUNNY PERIODS
Day 9 cartoon no. 54 - Sunny Intervals with Showers

| Copyright and Disclaimer | Home | Chinese Version / 中文版本 | 9-day Weather Forecast RSS |