climate, with very mild winters and hot, humid and rainy summers. The sun shines quite rarely. The rainiest period is from June to September, due to the
The city is located in northern Vietnam, at 21 degrees north latitude, at the beginning of the Red River Delta and about 90 km (55 mi) from the coast of the Gulf of Tonkin.
fall per year, of which more than 150 mm (6 in) per month fall in May and October, and more than 250 mm (10 in) from June to September. Although precipitation in winter is weak, especially from January onwards, there are frequent drizzles.
, from December to February, is mild, with a January average of 17 °C (62.5 °F), however, the sky is often cloudy, especially in January and February, and as mentioned,
can occur. Furthermore, in this season, air pollution is often high.
Winter averages are a little higher than in the far north of Vietnam, however, sometimes there can be
here as well, with lows around 7/8 °C (45/46 °F) and highs around 15 °C (59 °F). More rarely, it can even get cold for a few days, and highs can drop to around 10 °C (50 °F). In January 2016, there was a day with a minimum of 5 °C (41 °F) and a maximum of 8 °C (46.5 °F). In the mountain massif of Ba Vì, which is located about 40 km (25 mi) west of the city and measures 1,296 meters (4,252 feet) in height, it even snowed on that occasion.
, but also from June to September, in the pauses between a period of bad weather and the next. At the beginning of June 2017, the temperature reached 41 °C (106 °F).
, from May to September, is hot and muggy, with frequent and sometimes heavy rains.
is rarely seen from January to April, but even in summer, it does not shine very often because of the summer monsoon. There are about 1,585 hours of sunshine per year.
is a bit cool from January to March, while it is very warm in the summer months. Anyway, in winter, cool and cloudy weather conditions which prevail in this season are usually not inviting for swimming.
, the tropical cyclones of Southeast Asia, even though it is not on the coast, which is the area most at risk. Typically, typhoons pass in this area from late May to early November, with a maximum from July to October.
In Hanoi, there is no time of year when the temperatures are mild, the sun shines and there is little rain. However, you can choose
, and in particular, from mid-March to mid-April and from the end of October to the end of November.
In winter, December is a little sunnier and less cool than January and February.
. Here are the average temperatures.
January, the coldest month of the year, is generally a very mild month. The average temperature is of
17.1 °C, with a minimum of
14.1 °C and a maximum of
20.1 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C.
On the warmest days of the month, the temperature usually reaches around
27.5 °C.
Precipitation amounts to
20 mm, distributed over 10 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 22% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
9.8 kph.
February is generally a warm month. The average temperature is of
18.6 °C, with a minimum of
15.8 °C and a maximum of
21.5 °C.
On the coldest nights of the month, the temperature usually drops to around
10.5 °C.
On the warmest days of the month, the temperature usually reaches around
28.5 °C.
Precipitation amounts to
20 mm, distributed over 12 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 15% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
10.6 kph.
March is generally a warm month. The average temperature is of
21 °C, with a minimum of
18.3 °C and a maximum of
23.7 °C.
On the coldest nights of the month, the temperature usually drops to around
12.5 °C.
On the warmest days of the month, the temperature usually reaches around
30.5 °C.
Precipitation amounts to
35 mm, distributed over 16 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 13% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
10.3 kph.
April is generally a warm to hot, muggy month. The average temperature is of
24.9 °C, with a minimum of
21.7 °C and a maximum of
28 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C.
On the warmest days of the month, the temperature usually reaches around
34 °C.
Precipitation amounts to
105 mm, distributed over 14 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
11 kph.
May is generally a very hot, muggy month. The average temperature is of
28.2 °C, with a minimum of
24.4 °C and a maximum of
32 °C.
On the coldest nights of the month, the temperature usually drops to around
20.5 °C.
On the warmest days of the month, the temperature usually reaches around
37.5 °C.
Precipitation amounts to
165 mm, distributed over 14 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
10.8 kph.
June, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
30 °C, with a minimum of
26.1 °C and a maximum of
34 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C.
On the warmest days of the month, the temperature usually reaches around
38 °C.
Precipitation amounts to
265 mm, distributed over 15 days.
The day lasts on average 13 hours and 25 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 5.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
9.8 kph.
July is generally a very hot, muggy month. The average temperature is of
29.9 °C, with a minimum of
26.2 °C and a maximum of
33.6 °C.
On the coldest nights of the month, the temperature usually drops to around
23.5 °C.
On the warmest days of the month, the temperature usually reaches around
37.5 °C.
Precipitation amounts to
255 mm, distributed over 16 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
9.8 kph.
August is generally a very hot, muggy month. The average temperature is of
29.3 °C, with a minimum of
25.8 °C and a maximum of
32.9 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C.
On the warmest days of the month, the temperature usually reaches around
36.5 °C.
Precipitation amounts to
275 mm, distributed over 17 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
8.5 kph.
September is generally a very hot, muggy month. The average temperature is of
28.4 °C, with a minimum of
24.8 °C and a maximum of
32 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C.
On the warmest days of the month, the temperature usually reaches around
35.5 °C.
Precipitation amounts to
245 mm, distributed over 14 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
8.1 kph.
October is generally a warm to hot, muggy month. The average temperature is of
26 °C, with a minimum of
22.2 °C and a maximum of
29.8 °C.
On the coldest nights of the month, the temperature usually drops to around
17.5 °C.
On the warmest days of the month, the temperature usually reaches around
33.5 °C.
Precipitation amounts to
155 mm, distributed over 11 days.
The day lasts on average 11 hours and 35 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
8.4 kph.
November is generally a warm to hot, muggy month. The average temperature is of
22.6 °C, with a minimum of
18.8 °C and a maximum of
26.4 °C.
On the coldest nights of the month, the temperature usually drops to around
14 °C.
On the warmest days of the month, the temperature usually reaches around
31.5 °C.
Precipitation amounts to
60 mm, distributed over 8 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
8.6 kph.
December is generally a warm month. The average temperature is of
18.6 °C, with a minimum of
15 °C and a maximum of
22.2 °C.
On the coldest nights of the month, the temperature usually drops to around
9.5 °C.
On the warmest days of the month, the temperature usually reaches around
28.5 °C.
Precipitation amounts to
20 mm, distributed over 5 days.
The day lasts on average 10 hours and 55 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
9 kph.