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Contents
- The climate of Nantong
- The best time to visit Nantong
- The worst time to visit Nantong
- Spring weather in Nantong
- Summer weather in Nantong
- Autumn weather in Nantong
- Winter weather in Nantong
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The climate of Nantong
Nantong, a city in China, belongs to the humid subtropical climate category, more specifically classified as Cfa under the Köppen climate classification. Its geographical position lends to a juxtaposition of both considerable and varied annual weather patterns. Annual average temperatures typically fluctuate between 2°C (35.6°F) and 31.2°C (88.2°F). Peak average high temperatures are typically felt in August with a sizzling 31.2°C (88.2°F). Conversely, the coolest month in the year on average is January, with low temperatures dropping to an average of 2°C (35.6°F).
There is a noticeable transparency in the variation of humidity levels throughout the year. Humidity ranges from 64% to 83% throughout the year, with the muggiest months being July and August. Rainfall patterns change throughout the year, with the driest month being February, having only 16mm (0.63") of rainfall in 7.1 days. However, a dramatic increase occurs in July, with a heavy downpour of 84mm (3.31") in 18.5 days. Noteworthy drift in snowfall appears less dramatic, with the heaviest snowfall, 7mm (0.28"), taking place in January and a complete absence from March to December.
In Nantong, the daylight hours vary little throughout the year, the length of the day fluctuates between 10.1 hours in December and 14.2 hours in June. Sunshine hours reach their peak in August with about 9.5 hours, and minimum in December with about 5.2 hours. However, the least cloudy month is December with about 35% cloud cover, and the cloudiest month is February with about 47% cloud cover.
There is a noticeable transparency in the variation of humidity levels throughout the year. Humidity ranges from 64% to 83% throughout the year, with the muggiest months being July and August. Rainfall patterns change throughout the year, with the driest month being February, having only 16mm (0.63") of rainfall in 7.1 days. However, a dramatic increase occurs in July, with a heavy downpour of 84mm (3.31") in 18.5 days. Noteworthy drift in snowfall appears less dramatic, with the heaviest snowfall, 7mm (0.28"), taking place in January and a complete absence from March to December.
In Nantong, the daylight hours vary little throughout the year, the length of the day fluctuates between 10.1 hours in December and 14.2 hours in June. Sunshine hours reach their peak in August with about 9.5 hours, and minimum in December with about 5.2 hours. However, the least cloudy month is December with about 35% cloud cover, and the cloudiest month is February with about 47% cloud cover.
The best time to visit Nantong
The best time to visit Nantong rests between the months of April and June. During these months, the weather is pleasurable, with temperatures ranging between an amicable 10.1°C (50.2°F) to 28.3°C (82.9°F). Sunshine hours increase from April to June, touching the peak at 9.1 hours in June, offering longer daylight for outdoor activities. The rainfall, though present, is not as pronounced as during the later months, making the city more conducive for tourism. Relative humidity is also generally lower, ensuring comfort.
The worst time to visit Nantong
The harshest climatic conditions in Nantong arrive in the months of July and August. During these months, temperatures shoot up from 23.9°C (75°F) to 31.2°C (88.2°F) with escalating humidity levels peaking at 83%. The city also experiences its heaviest rainfall during these months, with downpours reaching up to 84mm (3.31") in July. Excessive heat, humidity, and rainfall combine to make these months the most challenging for visitors.
Spring weather in Nantong
Spring, which arrives in Nantong from March to May, shows progressive warming in the atmosphere. Temperature ranges from a moderate 5.6°C (42.1°F) in March to a more balmy 25.5°C (77.9°F) in May. Rainfall also begins to pick up, starting with 18mm (0.71") in March and climbing up to 24mm (0.94") in May. Daylight hours extend from 12 hours in March to 13.8 hours in May, simultaneously matching the increase in sunshine hours from 7.2 hours to 8.9 hours.
Summer weather in Nantong
The summer months of June to August show a consistent rise in temperatures, peaking at an average high of 31.2°C (88.2°F) in August. This season also witnesses a significant jump in rainfall from 62mm (2.44") in June to 84mm (3.31") in July, making it the wettest month. Despite notable rainfall, daylight hours slightly reduce from 14.2 hours to 14 hours, and the sunshine hours also diminish to 8.7 hours by August.
Autumn weather in Nantong
Autumn in Nantong, running from September to November, exhibits a comfortable decline in temperature from 26.6°C (79.9°F) in September to a cool 16.7°C (62.1°F) in November. Along with it, the rainfall also decreases steadily from 44mm (1.73") in September to 24mm (0.94") in November. Day and sunshine hours gradually descend, standing at 10.5 hours and 5.4 hours respectively by November.
Winter weather in Nantong
Winter months - December, January, and February, see the mercury dipping to its lowest, with an average low of 2°C (35.6°F) in January, the coldest month. Snowfall is almost negligible but makes an appearance in January with 6mm (0.24"). Rainfall, too, is at its lowest with 14mm (0.55") in December and 19mm (0.75") in February. Day and sunshine hours decrease to the shortest in the year, standing at 10.1 daylight hours and 5.2 sunshine hours by December.
From the looks of it, the weather in Nantong seems to hold quite a range, ensuring diverse weather for its inhabitants or visitors, depending on the time of year.
From the looks of it, the weather in Nantong seems to hold quite a range, ensuring diverse weather for its inhabitants or visitors, depending on the time of year.
Weather in January
January witnesses lower temperatures with an average high of 7.5°C (45.5°F) and a low around 2°C (35.6°F), making it the coldest month of the year in Nantong, China. A noticeable shift in weather can be discerned from the previous months, with snowfall reaching 7mm (0.28") over 2.1 days. Weather in January »
Weather in February
February in Nantong is characterized by a slight increase in temperatures as compared to January, signifying the gradual descent of spring. While the city receives sunshine for approximately five hours a day, clouds often scatter across the sky. Weather in February »
Weather in March
With the arrival of March, Nantong warms up, signalling the end of the winter season. The temperatures, the quantity of sunlight, and the frequency of rain showers all increase, giving a taste of the approaching spring. Outdoor activities become more comfortable, and the city turns greener as plants begin to recover from the winter chill. Weather in March »
Weather in April
In April, Nantong experiences a definitive shift into spring, with warmth permeating the air. Clear, sunny days become the norm, and residents can comfortably venture outdoors without heavy jackets. Cloud cover decreases, while pressure conditions remain relatively stable. Weather in April »
Weather in May
May in Nantong sees a further rise in temperatures, and the city gradually moves towards the hot weather of summer. The increased daylight hours allow visitors and residents to savour the city’s offerings in relative warmth. As the barometer inches upward, trees lush with leaves provide respite from the mild sun. Weather in May »
Weather in June
June heralds the summer in Nantong, China. The city embraces a hot climate, and beach activities can be relished due to the rise in sea temperatures. The typical summer afternoon is followed by mild cool evenings providing a much-needed breather from the heat. Weather in June »
Weather in July
July is the hottest month in Nantong, contributing to the city's typical subtropical climate. With longer daylight hours, the city is bathed in sunlight. Residents and tourists flock to coastal areas for relief from the prickly heat. Weather in July »
Weather in August
August experiences hot and humid conditions much like July. However, the weather slowly starts showing signs of change towards the end of the month. Even though sunshine hours remain relatively long, clouds often float in, providing intermittent respite from the sun. Weather in August »
Weather in September
September signals the end of summer and the advent of fall in Nantong. A noticeable drop in temperatures from August to September marks this transition. Green leaves start to turn into warm, autumn hues, enhancing the city’s picturesque views. Weather in September »
Weather in October
October offers favourable weather conditions in Nantong. The heartening fall colour palette of oranges and reds makes the city landscape enchanting. Mild and comfortable daytime temperatures followed by slightly chilly evenings become common. Weather in October »
Weather in November
November, moving towards winter, witnesses a sharp decrease in temperatures in Nantong. This period is signified by shorter daylight hours and longer nights. Tinges of winter become discernible towards the end of the month. Despite the chill, the pleasant weather encourages exploration of the city’s tourist spots. Weather in November »
Weather in December
The chill of winter is in full swing by December in Nantong, and snowfall is not an uncommon sight. The city by the end of the year is cloaked in a white blanket, transforming its façade from the vibrant summer months. The weather often calls for heavy winter clothing, hot drinks, and the warmth of indoors. Weather in December »
Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Nantong?
Nantong's coldest weather arrives in January, when temperatures average a high of 7.5°C (45.5°F) and a low of 2°C (35.6°F).
What is the driest month in Nantong?
The month with the least rainfall is January, when the rain falls for 7.1 days and typically collects 14mm (0.55") of precipitation.
How many days does it rain in Nantong?
In Nantong, during the entire year, the rain falls for 134.2 days and collects up to 416mm (16.38") of precipitation.
When does it snow in Nantong?
Months with snowfall in Nantong are January through March and December.
How much does it snow in Nantong?
Throughout the year, there are 5.4 snowfall days, and 26mm (1.02") of snow is accumulated.
What is the month with the lowest UV index in Nantong?
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
When does it snow the most in Nantong?
The month with the most snowfall in Nantong is February, when snow falls for 1.8 days and typically aggregates up to 11mm (0.43") of snow.
When is the sea coldest in Nantong?
The month with the coldest seawater is February, with an average sea temperature of 5.4°C (41.7°F).
What is the month with the least sunshine in Nantong?
The month with the least sunshine is February, with an average of 5h of sunshine.
When it does not snow in Nantong?
April through November are months without snowfall in Nantong, China.
When are the longest days in Nantong?
June has the longest days of the year in Nantong, China, with an average of 14h and 12min of daylight.
What is the most humid month in Nantong?
July is the most humid month in Nantong, China, with an average relative humidity of 83%.
What is the wettest month in Nantong?
The month with the most rainfall in Nantong is July, when the rain falls for 18.5 days and typically aggregates up to 84mm (3.31") of precipitation.
What is the month with the highest UV index in Nantong?
July and August, with an average maximum UV index of 7, are months with the highest UV index.
What is the hottest time of year in Nantong?
August proves to be the warmest month, recording an average peak temperature of 31.2°C (88.2°F) and a minimum temperature of 24.5°C (76.1°F).
What month is the sea warmest in Nantong?
August is the month with the warmest seawater in Nantong, with an average sea temperature of 26.8°C (80.2°F).
What month has the most sunshine in Nantong?
With an average of 9.5h of sunshine, August has the most sunshine of the year in Nantong, China.
What is the least humid month in Nantong?
With an average relative humidity of 64%, December is the least humid month.
What is the month with the shortest days in Nantong?
The month with the shortest days in Nantong is December, with an average of 10h and 6min of daylight.
Is there Daylight Saving Time (DST) in Nantong?
Nantong does not utilize Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
Nantong, China
The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (7.5°C).
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure
Nantong, China
- Average pressure in January:
1027.5mbar - Average pressure in February:
1024.7mbar - Average pressure in March:
1021.2mbar - Average pressure in April:
1015.8mbar - Average pressure in May:
1010.9mbar - Average pressure in June:
1006.1mbar
- Average pressure in July:
1004.8mbar - Average pressure in August:
1006mbar - Average pressure in September:
1013mbar - Average pressure in October:
1019.6mbar - Average pressure in November:
1023mbar - Average pressure in December:
1026.6mbar
The month with the highest atmospheric pressure is January (1027.5mbar).
The month with the lowest atmospheric pressure is July (1004.8mbar).
Average wind speed
Nantong, China
- Average wind speed in January:
12.7km/h - Average wind speed in February:
13.4km/h - Average wind speed in March:
13.3km/h - Average wind speed in April:
12.8km/h - Average wind speed in May:
12.6km/h - Average wind speed in June:
11.7km/h
- Average wind speed in July:
11.3km/h - Average wind speed in August:
12.1km/h - Average wind speed in September:
11.1km/h - Average wind speed in October:
11.8km/h - Average wind speed in November:
12.5km/h - Average wind speed in December:
13.2km/h
The windiest month (with the highest average wind speed) is February (13.4km/h).
The calmest month (with the lowest average wind speed) is September (11.1km/h).
Average humidity
Nantong, China
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is December (64%).
Average rainfall
Nantong, China
The wettest month (with the highest rainfall) is July (84mm).
The driest month (with the least rainfall) is January (14mm).
Average rainfall days
Nantong, China
- Average rainfall days in January:
7.1 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
10.3 days - Average rainfall days in May:
9.9 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
18.5 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
13.9 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (7.1 days).
Average snowfall
Nantong, China
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Nantong, China
- Average snowfall days in January:
2.1 days - Average snowfall days in February:
1.8 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature
Nantong, China
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is February (5.4°C).
Average daylight / Average sunshine
Nantong, China
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 1min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 0min - Average sunshine in March:
7h and 1min - Average sunshine in April:
9h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
8h and 2min
- Average sunshine in July:
8h and 4min - Average sunshine in August:
9h and 3min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
5h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days
Nantong, China
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
18 days - Average sunshine days in May:
19.4 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
9.7 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
13.2 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
21.5 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (9.7 days).
Average UV index
Nantong, China
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Nantong, China
The months with the most cloud cover are February and June (Cloud cover 47).
The month with the least cloud cover is December (Cloud cover 35).
Average visibility
Nantong, China
The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July, August and September (9km).
