Ha Long Bay climate guide

Temperature in Ha Long Bay (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
20°C maximum daytime temperature in January in Ha Long Bay20
20°C maximum daytime temperature in February in Ha Long Bay20
23°C maximum daytime temperature in March in Ha Long Bay23
27°C maximum daytime temperature in April in Ha Long Bay27
31°C maximum daytime temperature in May in Ha Long Bay31
32°C maximum daytime temperature in June in Ha Long Bay32
32°C maximum daytime temperature in July in Ha Long Bay32
32°C maximum daytime temperature in August in Ha Long Bay32
31°C maximum daytime temperature in September in Ha Long Bay31
29°C maximum daytime temperature in October in Ha Long Bay29
25°C maximum daytime temperature in November in Ha Long Bay25
22°C maximum daytime temperature in December in Ha Long Bay22
Min temperature (night-time)
13°C minimum night-time temperature in January in Ha Long Bay13
14°C minimum night-time temperature in February in Ha Long Bay14
17°C minimum night-time temperature in March in Ha Long Bay17
21°C minimum night-time temperature in April in Ha Long Bay21
24°C minimum night-time temperature in May in Ha Long Bay24
25°C minimum night-time temperature in June in Ha Long Bay25
26°C minimum night-time temperature in July in Ha Long Bay26
25°C minimum night-time temperature in August in Ha Long Bay25
24°C minimum night-time temperature in September in Ha Long Bay24
21°C minimum night-time temperature in October in Ha Long Bay21
17°C minimum night-time temperature in November in Ha Long Bay17
14°C minimum night-time temperature in December in Ha Long Bay14
Sea temperature
19°C sea temperature in January in Ha Long Bay19
19°C sea temperature in February in Ha Long Bay19
20°C sea temperature in March in Ha Long Bay20
23°C sea temperature in April in Ha Long Bay23
27°C sea temperature in May in Ha Long Bay27
29°C sea temperature in June in Ha Long Bay29
29°C sea temperature in July in Ha Long Bay29
30°C sea temperature in August in Ha Long Bay30
29°C sea temperature in September in Ha Long Bay29
28°C sea temperature in October in Ha Long Bay28
25°C sea temperature in November in Ha Long Bay25
22°C sea temperature in December in Ha Long Bay22

Sunshine & Daylight in Ha Long Bay

  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 Ha Long Bay11
11 hours of daylight per day in February in Ha Long Bay11
12 hours of daylight per day in March in Ha Long Bay12
13 hours of daylight per day in April in Ha Long Bay13
13 hours of daylight per day in May in Ha Long Bay13
13 hours of daylight per day in June in Ha Long Bay13
13 hours of daylight per day in July in Ha Long Bay13
13 hours of daylight per day in August in Ha Long Bay13
12 hours of daylight per day in September in Ha Long Bay12
12 hours of daylight per day in October in Ha Long Bay12
11 hours of daylight per day in November in Ha Long Bay11
11 hours of daylight per day in December in Ha Long Bay11

Rainfall in Ha Long Bay

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Ha Long Bay10
11 days with some rainfall in February in Ha Long Bay11
13 days with some rainfall in March in Ha Long Bay13
13 days with some rainfall in April in Ha Long Bay13
14 days with some rainfall in May in Ha Long Bay14
15 days with some rainfall in June in Ha Long Bay15
15 days with some rainfall in July in Ha Long Bay15
16 days with some rainfall in August in Ha Long Bay16
14 days with some rainfall in September in Ha Long Bay14
11 days with some rainfall in October in Ha Long Bay11
8 days with some rainfall in November in Ha Long Bay8
7 days with some rainfall in December in Ha Long Bay7
Average monthly rainfall (mm)
27 mm monthly rainfall in January in Ha Long Bay27
31 mm monthly rainfall in February in Ha Long Bay31
43 mm monthly rainfall in March in Ha Long Bay43
91 mm monthly rainfall in April in Ha Long Bay91
168 mm monthly rainfall in May in Ha Long Bay168
244 mm monthly rainfall in June in Ha Long Bay244
267 mm monthly rainfall in July in Ha Long Bay267
312 mm monthly rainfall in August in Ha Long Bay312
206 mm monthly rainfall in September in Ha Long Bay206
119 mm monthly rainfall in October in Ha Long Bay119
55 mm monthly rainfall in November in Ha Long Bay55
24 mm monthly rainfall in December in Ha Long Bay24

More climate for Ha Long Bay

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 8 (Very High) in January in Ha Long Bay8
UV (maximum) index 10 (Very High) in February in Ha Long Bay10
UV (maximum) index 11+ (Extreme) in March in Ha Long Bay11
UV (maximum) index 11+ (Extreme) in April in Ha Long Bay11
UV (maximum) index 11+ (Extreme) in May in Ha Long Bay11
UV (maximum) index 11+ (Extreme) in June in Ha Long Bay11
UV (maximum) index 11+ (Extreme) in July in Ha Long Bay11
UV (maximum) index 11+ (Extreme) in August in Ha Long Bay11
UV (maximum) index 11 (Extreme) in September in Ha Long Bay11
UV (maximum) index 10 (Very High) in October in Ha Long Bay10
UV (maximum) index 8 (Very High) in November in Ha Long Bay8
UV (maximum) index 7 (High) in December in Ha Long Bay7
Heat & Humidity
No heat & humidity in January in Ha Long Bay0
No heat & humidity in February in Ha Long Bay0
No heat & humidity in March in Ha Long Bay0
Moderate heat & humidity in April in Ha Long BayM
Very high heat & humidity in May in Ha Long BayVH
Very high heat & humidity in June in Ha Long BayVH
Very high heat & humidity in July in Ha Long BayVH
Very high heat & humidity in August in Ha Long BayVH
Very high heat & humidity in September in Ha Long BayVH
High heat & humidity in October in Ha Long BayH
Low heat & humidity in November in Ha Long BayL
No heat & humidity in December in Ha Long Bay0

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

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The climate guide for Ha Long Bay, Vietnam 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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