Thang Hen Lake

Lake Karst lake in northern Vietnam with clear waters

A karst lake in northern Vietnam visited for boat rides, limestone scenery and nearby minority villages; travelers combine the lake with regional road trips and short hikes along the shore.

Thang Hen Lake
Thang Hen Lake, Đồng Văn District, Hà Giang Province, Vietnam (Dong Van Karst Plateau Geopark area)
22.7580, 106.2950
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Best Time to Visit Thang Hen Lake #

For clearer, cooler conditions visit Thang Hen Lake in the cool, dry months (October-March); expect warmer, wetter weather in spring and summer.

Cool, dry season
October-March · 5-18°C
Crisp, clearer conditions with cool mornings-good for scenic views and walking, though mornings can be quite chilly.
Warm, wet season
April-September · 15-28°C
Warmer but rainier months; trails and access can be muddy and some viewpoints may be cloud-covered after heavy rain.

Weather & Climate near Thang Hen Lake #

Climate

Thang Hen Lake's climate is classified as Humid Subtropical (Dry Winter) - Humid Subtropical (Dry Winter) climate with hot summers (peaking in July) and cool winters (coldest in January). Temperatures range from 9°C to 30°C. Abundant rainfall (1598 mm/year), wettest in July with a pronounced dry season.

Air Quality: AQI 80 Moderate
Best Time to Visit
NovemberOctoberApril
Temperature & Rainfall
Temperature Range
38°
Warmest Month
-6°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 16°C and lows of 9°C. The driest month with just 20 mm and mostly overcast skies.

67 Good

Comfort

13°
Feels Like Cool
13°C
Temperature
9° – 16°
80%
Humidity
Very Humid

Weather

20 mm
Rainfall
1.7 m/s
Wind
Calm
0.7
UV Index
Moderate
10.8h daylight

February

February is cool with highs of 17°C and lows of 11°C. Moderate rainfall (46 mm) and mostly overcast skies.

63 Good

Comfort

14°
Feels Like Cool
14°C
Temperature
11° – 17°
79%
Humidity
Very Humid

Weather

46 mm
Rainfall
1.8 m/s
Wind
Calm
0.9
UV Index
Moderate
11.3h daylight

March

March is cool with highs of 21°C and lows of 14°C. Moderate rainfall (30 mm) and mostly overcast skies.

67 Good

Comfort

18°
Feels Like Cool
18°C
Temperature
15° – 21°
77%
Humidity
Very Humid

Weather

30 mm
Rainfall
1.9 m/s
Wind
Calm
1.0
UV Index
Moderate
11.9h daylight

April

April is mild with highs of 25°C and lows of 18°C. Moderate rainfall (74 mm) and mostly overcast skies.

73 Very Good

Comfort

22°
Feels Like Mild
22°C
Temperature
18° – 25°
76%
Humidity
Very Humid

Weather

74 mm
Rainfall
2.0 m/s
Wind
Calm
1.3
UV Index
High
12.6h daylight

May

May is warm with highs of 28°C and lows of 21°C. Heavy rain (205 mm) and mostly overcast skies.

63 Good

Comfort

24°
Feels Like Warm
24°C
Temperature
21° – 28°
79%
Humidity
Very Humid

Weather

205 mm
Rainfall
1.9 m/s
Wind
Calm
1.8
UV Index
Very High
13.1h daylight

June

June is warm with highs of 29°C and lows of 22°C. Heavy rain (297 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° – 29°
87%
Humidity
Very Humid

Weather

297 mm
Rainfall
1.8 m/s
Wind
Calm
1.9
UV Index
Very High
13.4h daylight

July

July is the warmest month with muggy conditions (dew point 22°C). The wettest month with heavy rain (321 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° – 30°
88%
Humidity
Very Humid

Weather

321 mm
Rainfall
1.8 m/s
Wind
Calm
2.1
UV Index
Extreme
13.2h daylight

August

August is warm with highs of 29°C and lows of 22°C. Heavy rain (309 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
22° – 29°
87%
Humidity
Very Humid

Weather

309 mm
Rainfall
1.5 m/s
Wind
Calm
2.0
UV Index
Very High
12.8h daylight

September

September is warm with highs of 28°C and lows of 21°C. Significant rainfall (149 mm) and mostly overcast skies.

69 Good

Comfort

24°
Feels Like Warm
24°C
Temperature
21° – 28°
86%
Humidity
Very Humid

Weather

149 mm
Rainfall
1.4 m/s
Wind
Calm
1.7
UV Index
Very High
12.2h daylight

October

October is mild with highs of 26°C and lows of 18°C. Regular rainfall (89 mm) and partly cloudy skies.

77 Very Good

Comfort

22°
Feels Like Mild
22°C
Temperature
18° – 26°
84%
Humidity
Very Humid

Weather

89 mm
Rainfall
1.6 m/s
Wind
Calm
1.3
UV Index
High
11.5h daylight

November

November is cool with highs of 22°C and lows of 14°C. Moderate rainfall (35 mm) and partly cloudy skies.

81 Excellent

Comfort

18°
Feels Like Cool
18°C
Temperature
14° – 22°
81%
Humidity
Very Humid

Weather

35 mm
Rainfall
1.6 m/s
Wind
Calm
1.0
UV Index
Moderate
10.9h daylight

December

December is cool with highs of 19°C and lows of 10°C. Light rainfall and partly cloudy skies.

73 Very Good

Comfort

14°
Feels Like Cool
14°C
Temperature
10° – 19°
78%
Humidity
Very Humid

Weather

23 mm
Rainfall
1.5 m/s
Wind
Calm
0.7
UV Index
Moderate
10.7h daylight

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