Hong Kong climate guide

Temperature in Hong Kong (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
18°C maximum daytime temperature in January in Hong Kong18
19°C maximum daytime temperature in February in Hong Kong19
21°C maximum daytime temperature in March in Hong Kong21
25°C maximum daytime temperature in April in Hong Kong25
28°C maximum daytime temperature in May in Hong Kong28
30°C maximum daytime temperature in June in Hong Kong30
31°C maximum daytime temperature in July in Hong Kong31
31°C maximum daytime temperature in August in Hong Kong31
30°C maximum daytime temperature in September in Hong Kong30
28°C maximum daytime temperature in October in Hong Kong28
24°C maximum daytime temperature in November in Hong Kong24
20°C maximum daytime temperature in December in Hong Kong20
Min temperature (night-time)
13°C minimum night-time temperature in January in Hong Kong13
14°C minimum night-time temperature in February in Hong Kong14
16°C minimum night-time temperature in March in Hong Kong16
20°C minimum night-time temperature in April in Hong Kong20
24°C minimum night-time temperature in May in Hong Kong24
26°C minimum night-time temperature in June in Hong Kong26
26°C minimum night-time temperature in July in Hong Kong26
26°C minimum night-time temperature in August in Hong Kong26
25°C minimum night-time temperature in September in Hong Kong25
23°C minimum night-time temperature in October in Hong Kong23
19°C minimum night-time temperature in November in Hong Kong19
15°C minimum night-time temperature in December in Hong Kong15
Sea temperature
19°C sea temperature in January in Hong Kong19
19°C sea temperature in February in Hong Kong19
21°C sea temperature in March in Hong Kong21
22°C sea temperature in April in Hong Kong22
25°C sea temperature in May in Hong Kong25
28°C sea temperature in June in Hong Kong28
28°C sea temperature in July in Hong Kong28
28°C sea temperature in August in Hong Kong28
28°C sea temperature in September in Hong Kong28
26°C sea temperature in October in Hong Kong26
23°C sea temperature in November in Hong Kong23
20°C sea temperature in December in Hong Kong20

Sunshine & Daylight in Hong Kong

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Hong Kong11
11 hours of daylight per day in February in Hong Kong11
12 hours of daylight per day in March in Hong Kong12
13 hours of daylight per day in April in Hong Kong13
13 hours of daylight per day in May in Hong Kong13
13 hours of daylight per day in June in Hong Kong13
13 hours of daylight per day in July in Hong Kong13
13 hours of daylight per day in August in Hong Kong13
12 hours of daylight per day in September in Hong Kong12
12 hours of daylight per day in October in Hong Kong12
11 hours of daylight per day in November in Hong Kong11
11 hours of daylight per day in December in Hong Kong11

Rainfall in Hong Kong

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
6 days with some rainfall in January in Hong Kong6
9 days with some rainfall in February in Hong Kong9
10 days with some rainfall in March in Hong Kong10
11 days with some rainfall in April in Hong Kong11
15 days with some rainfall in May in Hong Kong15
19 days with some rainfall in June in Hong Kong19
17 days with some rainfall in July in Hong Kong17
17 days with some rainfall in August in Hong Kong17
14 days with some rainfall in September in Hong Kong14
8 days with some rainfall in October in Hong Kong8
6 days with some rainfall in November in Hong Kong6
4 days with some rainfall in December in Hong Kong4
Average monthly rainfall (mm)
25 mm monthly rainfall in January in Hong Kong25
48 mm monthly rainfall in February in Hong Kong48
74 mm monthly rainfall in March in Hong Kong74
161 mm monthly rainfall in April in Hong Kong161
298 mm monthly rainfall in May in Hong Kong298
366 mm monthly rainfall in June in Hong Kong366
325 mm monthly rainfall in July in Hong Kong325
377 mm monthly rainfall in August in Hong Kong377
253 mm monthly rainfall in September in Hong Kong253
130 mm monthly rainfall in October in Hong Kong130
35 mm monthly rainfall in November in Hong Kong35
28 mm monthly rainfall in December in Hong Kong28

More climate for Hong Kong

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 7 (High) in January in Hong Kong7
UV (maximum) index 9 (Very High) in February in Hong Kong9
UV (maximum) index 11 (Extreme) in March in Hong Kong11
UV (maximum) index 11+ (Extreme) in April in Hong Kong11
UV (maximum) index 11+ (Extreme) in May in Hong Kong11
UV (maximum) index 11+ (Extreme) in June in Hong Kong11
UV (maximum) index 11+ (Extreme) in July in Hong Kong11
UV (maximum) index 11+ (Extreme) in August in Hong Kong11
UV (maximum) index 11 (Extreme) in September in Hong Kong11
UV (maximum) index 9 (Very High) in October in Hong Kong9
UV (maximum) index 7 (High) in November in Hong Kong7
UV (maximum) index 7 (High) in December in Hong Kong7
Heat & Humidity
No heat & humidity in January in Hong Kong0
No heat & humidity in February in Hong Kong0
No heat & humidity in March in Hong Kong0
No heat & humidity in April in Hong Kong0
Moderate heat & humidity in May in Hong KongM
High heat & humidity in June in Hong KongH
Very high heat & humidity in July in Hong KongVH
Very high heat & humidity in August in Hong KongVH
High heat & humidity in September in Hong KongH
Moderate heat & humidity in October in Hong KongM
No heat & humidity in November in Hong Kong0
No heat & humidity in December in Hong Kong0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

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The climate guide for Hong Kong shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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Discover more about Hong Kong

Hong Kong climate overview

Perched on the south coast of China in the Pearl River estuary lies the bustling city-state of Hong Kong with its atmospheric mix of oriental and western consumerism, and its towering skyscrapers. Once a colonial outpost of empire Hong Kong now falls within the jurisdiction of Beijing, but is still very much the international centre of Asia.

Hong Kong consists of a mainland peninsula and hundreds of islands. It is remarkably mountainous with several peaks over 800 metres (2,600 ft). Urban districts are densely populated but there are also significant areas of countryside, much of it now protected from development.

Before the arrival of the British in the mid nineteenth century the whole region had been largely deforested leaving bare hillsides which are still visible in places where replanting has not taken place. The mountains are largely volcanic with outcrops of granite on many slopes.

Lying just within the tropics Hong Kong experiences four distinct seasons. The climate is influenced in winter by the north-east monsoon and in summer by the south-west monsoon. Summers are hot and humid with a rainy season running from May to August and rainfall most persistent in May and June.

Winters are relatively dry with occasional windy cold spells as chilly air sweeps down from northern China. The months from February to April are particularly prone to low cloud, drizzle, and hill fog, and there is also a risk of typhoons from July to September.

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