AI-generatedNantong at a glance
- Best time
- Apr – May, Sep – Nov
- Warmest month
- Jul · 33°
- Warmest sea
- Aug · 27.7°
- Sunshine a year
- 1,790 h
- Rain a year
- 1,226 mm
- Climate
- Temperate
- Time zone
- UTC+8
- Elevation
- 6 m
Climate in Nantong
Nantong has a temperate climate with warm summers and cool winters. July is the warmest month with average highs of 33 °C, while January is the coolest at 9 °C. With around 1,790 hours of sunshine a year, Nantong is moderately sunny; August is the sunniest month with 5.9 hours a day.
Holiday weather through the year
Best time to visit Nantong
The best time to visit Nantong is from April to May and from September to November. In September and October, though, the typhoon season is at its peak: check the forecast before you go. For a beach holiday – sea from 21 °C, warm and mostly dry – go from September to October. For sightseeing, day trips and hiking, conditions are most comfortable from March to May and from October to November. Rain is frequent from June to August; the wettest month is June with 223 mm.
Nantong through the seasons
How the weather changes over the seasons, with averages for each.
Nantong in spring
Mar – May
Good
- 16–26 °C by day
- Sea 13 °C
- 5.4 h of sun a day
- 28 rainy days in all
Nantong in summer
Jun – Aug
Poor
- 29–33 °C by day
- Sea 25 °C
- 5.4 h of sun a day
- 43 rainy days in all
Nantong in autumn
Sep – Nov
Good
- 18–28 °C by day
- Sea 21 °C
- 4.9 h of sun a day
- 23 rainy days in all
Nantong in winter
Dec – Feb
Poor
- 9–11 °C by day
- Sea 8 °C
- 4.0 h of sun a day
- 22 rainy days in all
Which month for what?
Beach & swimming
Sep – Oct
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – May, Oct – Nov
15–28 °C and not too much rain
Rainy months
Jun – Aug
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in Nantong for you.
Your best months: April, October
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Excellent
Best time to visit: April – May, September – November
October is the peak of the typhoon season Hurricane season
Where to go in OctoberSea temperature in October
Good forBeach & swimmingSightseeing & walks
Keep in mindStorm season
A typical day in October
- Morning, 08:00: about 18°
- Midday, 13:00: about 23°
- Afternoon, 16:00: about 22°
- Evening, 20:00: about 19°
- Night, 23:00: about 17°
05:5917:25
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 05:44–06:32 · evening 16:52–17:40
- Blue hour
- Morning 05:34–05:44 · evening 17:40–17:50
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Nantong compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 26° at the start of the month to 20° at the end. The sea cools from 23° to 19°. The days get 0.9 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 26° | 20° |
| Night-time low | 18° | 12° |
| Sea | 23° | 19° |
| Daylight | 11.9 h | 11.0 h |
What is the weather like in Nantong in October?
In October, Nantong is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sea averages 21.4 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. Rain falls on about 7 days, adding up to 52 mm. All in all, October is an excellent month for a holiday in Nantong.
More details for October
- Daylight
- 11 h 26 min05:59 – 17:25
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+8offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %35 %
- Few rainy daysweight 30 %82 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Swimwear
- Sunscreen
- A jumper for the evenings
Compare two months in Nantong
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
October and May bring similar holiday weather to Nantong (score 82 and 79). In May, days are 3 °C warmer than in October. The sea is 4 °C cooler in May. May has 2 more rainy days. The sun shines an hour longer a day in May.
| Month | October | May |
|---|---|---|
| Holiday weather score | 82 | 79 |
| Daytime high | 23° | 26° |
| Night-time low | 15° | 16° |
| Sea | 21.4° | 17.8° |
| Sunshine | 5.1 h | 5.8 hbetter |
| Rainy days | 7better | 9 |
| Rainfall | 52 mmbetter | 105 mm |
| Muggy days | 4better | 7 |
Based on the climate averages 1996–2025.
Nantong month by month
The typical weather for every month at a glance.
27January9° · Sea 7° · 3.6 h
In January, Nantong is cold: daytime highs average 9 °C, and nights cool down to about 1 °C. The sea averages 6.8 °C – swimming is only for the hardy. The sun is scarce, with only about 3.6 hours a day. Rain falls on about 8 days, adding up to 53 mm. All in all, January is not an ideal month for a holiday in Nantong.
Nantong in January38February11° · Sea 6° · 4.2 h
In February, Nantong is cool: daytime highs average 11 °C, and nights cool down to about 2 °C. The sea averages 6.2 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 55 mm. All in all, February is not an ideal month for a holiday in Nantong.
Nantong in February61March16° · Sea 9° · 4.7 h
In March, Nantong is cool: daytime highs average 16 °C, and nights cool down to about 6 °C. The sea averages 8.6 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 72 mm in total. All in all, March is a good month for a holiday in Nantong.
Nantong in March77April22° · Sea 13° · 5.6 h
In April, Nantong is warm: daytime highs average 22 °C, and nights cool down to about 11 °C. The sea averages 12.8 °C – swimming is only for the hardy. Expect around 5.6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 86 mm in total. All in all, April is a good month for a holiday in Nantong.
Nantong in April79May26° · Sea 18° · 5.8 h
In May, Nantong is warm: daytime highs average 26 °C, and nights cool down to about 16 °C. The sea averages 17.8 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.8 hours of sunshine a day. Rain falls on about 9 days, adding up to 105 mm. All in all, May is a good month for a holiday in Nantong.
Nantong in May53June29° · Sea 22° · 4.5 h
In June, Nantong is hot: daytime highs average 29 °C, and even at night it stays warm at around 21 °C. The sea averages 21.7 °C – refreshing for a swim. Expect around 4.5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 223 mm in total. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in Nantong.
Nantong in June28July33° · Sea 26° · 5.7 h
In July, Nantong is hot: daytime highs average 33 °C, and even at night it stays warm at around 25 °C. The sea averages 25.7 °C – pleasant for swimming. Expect around 5.7 hours of sunshine a day. It rains often – on about 16 days, adding up to 219 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Nantong.
Nantong in July32August32° · Sea 28° · 5.9 h
In August, Nantong is hot: daytime highs average 32 °C, and even at night it stays warm at around 25 °C. The sea averages 27.7 °C – lovely and warm for swimming. Expect around 5.9 hours of sunshine a day. It rains often – on about 15 days, adding up to 164 mm. On about 25 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Nantong.
Nantong in August67September28° · Sea 26° · 5.2 h
In September, Nantong is hot: daytime highs average 28 °C, and even at night it stays warm at around 21 °C. The sea averages 25.5 °C – pleasant for swimming. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 105 mm in total. On about 8 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a good month for a holiday in Nantong.
Nantong in September82October23° · Sea 21° · 5.1 h
In October, Nantong is warm: daytime highs average 23 °C, and nights cool down to about 15 °C. The sea averages 21.4 °C – refreshing for a swim. Expect around 5.1 hours of sunshine a day. Rain falls on about 7 days, adding up to 52 mm. All in all, October is an excellent month for a holiday in Nantong.
Nantong in October76November18° · Sea 17° · 4.4 h
In November, Nantong is mild: daytime highs average 18 °C, and nights cool down to about 9 °C. The sea averages 16.5 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. Rain falls on about 7 days, adding up to 55 mm. All in all, November is a good month for a holiday in Nantong.
Nantong in November44December11° · Sea 11° · 4.1 h
In December, Nantong is cool: daytime highs average 11 °C, and nights cool down to about 3 °C. The sea averages 10.9 °C – swimming is only for the hardy. Expect around 4.1 hours of sunshine a day. Rain falls on about 6 days, adding up to 37 mm. All in all, December is a so-so month for a holiday in Nantong.
Nantong in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Nantong
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
- Pleasant 15–20°
- Warm 20–24°
- Hot 24° and more
- muggy month (15+ muggy days)
PleasantOctober: nights around 15°. Ideal for sleeping, often with the window open. Muggy on about 4 days (dew point 18 °C or more).
The coolest nights are in January (1°), the warmest in July (25°). Tropical nights of 20 °C and more are the rule from June to September; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in May and in October. Nights fall below 8 °C on average from December to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 121 days a year, mostly from June to September.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 27 | 9° | 1° | 6.8° | 3.6 h | 8 | 53 |
| FebruaryFeb | 38 | 11° | 2° | 6.2° | 4.2 h | 8 | 55 |
| MarchMar | 61 | 16° | 6° | 8.6° | 4.7 h | 10 | 72 |
| AprilApr | 77 | 22° | 11° | 12.8° | 5.6 h | 10 | 86 |
| MayMay | 79 | 26° | 16° | 17.8° | 5.8 h | 9 | 105 |
| JuneJun | 53 | 29° | 21° | 21.7° | 4.5 h | 13 | 223 |
| JulyJul | 28 | 33° | 25° | 25.7° | 5.7 h | 16 | 219 |
| AugustAug | 32 | 32° | 25° | 27.7° | 5.9 h | 15 | 164 |
| SeptemberSep | 67 | 28° | 21° | 25.5° | 5.2 h | 10 | 105 |
| OctoberOct | 82 | 23° | 15° | 21.4° | 5.1 h | 7 | 52 |
| NovemberNov | 76 | 18° | 9° | 16.5° | 4.4 h | 7 | 55 |
| DecemberDec | 44 | 11° | 3° | 10.9° | 4.1 h | 6 | 37 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
32.03° N, 120.87° E · 6 m · Asia/Shanghai
Sea temperature
Sea temperature in Nantong
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 20.4 – 22.3 °C
Swimming season: Jun – Oct
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Nantong ranges from 6.2 °C in February to 27.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
The sea warms up slowly: it is warmest in August, while the air already peaks in July. The sea temperature varies from year to year: in August, eight out of ten years were between 26.3 and 29.2 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 6.8° | 5.1° | 8.1° | cold |
| FebruaryFeb | 6.2° | 5.0° | 7.3° | cold |
| MarchMar | 8.6° | 7.2° | 9.8° | cold |
| AprilApr | 12.8° | 11.8° | 14.6° | cold |
| MayMay | 17.8° | 16.9° | 18.9° | fresh |
| JuneJun | 21.7° | 20.5° | 23.3° | refreshing |
| JulyJul | 25.7° | 24.2° | 27.4° | pleasant |
| AugustAug | 27.7° | 26.3° | 29.2° | warm |
| SeptemberSep | 25.5° | 24.5° | 27.0° | pleasant |
| OctoberOct | 21.4° | 20.4° | 22.3° | refreshing |
| NovemberNov | 16.5° | 15.5° | 17.7° | cold |
| DecemberDec | 10.9° | 9.2° | 12.6° | cold |
Sunshine
Sunshine hours in Nantong
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.1 of 11.4 hours of daylight in Nantong, 45 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in Nantong: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Nantong has about 7 rainy days with 52 mm of rain in total.
UV index
UV index in Nantong
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 6 · highSeek shade around midday; sunscreen SPF 30+, hat and sunglasses.
The sun is strongest in June (UV 11).
Minutes until sunburn in October
- Very fair skin
- about 20 min
- Fair skin
- about 30 min
- Light brown skin
- about 40 min
- Olive skin
- about 50 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in Nantong
How breezy and how cloudy Nantong is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Nantong typically peaks at 16 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 54 % of the sky over Nantong: variable cloud, with about 5.1 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in Nantong
How often the day gets hot in Nantong (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Nantong has about 1 hot day, with an average daytime high of 23 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Nantong
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Nantong in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Nantong has its best school-holiday weather during October half-term (score 82) and its weakest during the summer holidays (score 31).
- 72
Easter holidays
Mar – Apr
Good
- 20 °C by day
- Sea 12 °C
- 5.3 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 74
May half-term
May – Jun
Good
- 27 °C by day
- Sea 19 °C
- 5.5 h of sun a day
- 10 rainy days a month
Good for: Sightseeing & walks
- 31
Summer holidays
Jul – Aug
Poor
- 33 °C by day
- Sea 27 °C
- 5.8 h of sun a day
- 15 rainy days a month
Keep in mind: Frequent rain, Storm season
- 82
October half-term
Oct
ExcellentBest holidays
- 23 °C by day
- Sea 21 °C
- 5.1 h of sun a day
- 7 rainy days a month
Good for: Beach & swimming, Sightseeing & walks
Keep in mind: Storm season
- 36
Christmas holidays
Dec – Jan
Poor
- 10 °C by day
- Sea 9 °C
- 3.9 h of sun a day
- 7 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 11 h 30 min
- Distance
- 9,110 km
- Time zone
- UTC+8
- Jet lag
- About 7 days (7 h east)
Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: China
- Currency
- Chinese Yuan (CNY)
- Language
- Chinese
- Sockets
- Type A, C, I · 220 V
- Traffic
- Drives on the right
- Dialling code
- +86
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
Nantong lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
Nantong compared
Put Nantong side by side with another destination.
Nantong vs Wuxi
In October the holiday weather in Nantong and Wuxi is about equally good (score 82 vs 80). During the day Wuxi is 1 °C warmer than Nantong.
| in October | Nantong | Wuxi |
|---|---|---|
| Holiday weather score | 82 | 80 |
| Daytime high | 23° | 24° |
| Sea | 21° | no sea nearby |
| Sunshine | 5 h | 5 h |
| Rainy days | 7 | 7 |
| Best time | Apr – May, Sep – Nov | Apr – May, Oct – Nov |
Through the year
Best places in the country
China in October: the best places
In October, Nantong ranks 11 among the 31 nearest destinations in this country.
- Yantai20°20°91
- 2Weihai20°20°91
- 3Qingdao21°21°90
- 4Jinan22°89
- 5Linyi22°88
- 6Xuzhou22°88
- 7Qufu22°88
- 8Jingdezhen26°84
- 11NantongThis page23°21°82
Places nearby
Near Nantong
Other destinations close by.
Places with a similar climate
Places with a climate like Nantong
Destinations whose weather through the year is closest to Nantong's – good alternatives.
Frequently asked questions about Nantong
When is the best time to visit Nantong?
The best time to visit Nantong is from April to May and from September to November. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Nantong?
The sea temperature in Nantong ranges from 6.2 °C in February to 27.7 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.
Can you swim in Nantong in October?
Yes. In October the sea averages 21.4 °C – refreshing for a swim.
What is the warmest month in Nantong?
July is the warmest month, with average highs of 33 °C and nights around 25 °C. January is the coolest month at 9 °C.
When does it rain most in Nantong?
Rain is frequent from June to August; the wettest month is June with 223 mm. The driest month is December with 37 mm.
How many hours of sunshine does Nantong get?
Nantong gets around 1,790 hours of sunshine a year. The sunniest month is August with 5.9 hours a day; in January there are 3.6 hours a day.
What time zone is Nantong in?
Nantong is on UTC+8 all year.
How long is the flight from London to Nantong?
A nonstop flight from London to Nantong takes about 11 h 30 min, for a straight-line distance of about 9,110 km. Most routes need a change of planes, which adds time.
When is typhoon season in Nantong?
Nantong lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for Nantong?
Nantong has its best school-holiday weather during October half-term (score 82) and its weakest during the summer holidays (score 31). Holiday ratings (0–100): Easter holidays 72, May half-term 74, summer holidays 31, October half-term 82, Christmas holidays 36.