Ningbo weather in September

In September, Ningbo sees average daytime highs of 27°C and overnight lows near 23°C, with 154 mm of rain across 13.2 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 26°C by the end. The sky is clear or mostly clear about 29% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Ningbo's 4th-clearest and 2nd-windiest month. For the whole year in context, see Ningbo's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
154 mm
13.2 wet days
Daylight
12 h 12 min
5:43 AM – 5:53 PM
Cloud cover
62%
4th clearest
Wind
12 km/h
2nd windiest
Solar energy
4.06 kWh/m²
Travel score
5.7
out of 10

Ningbo is prefecture-level city in Zhejiang, China.

Air quality
Very high
PM2.5 35.9 µg/m³ · 2018
Density
398/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 26°C by the end.

A typical September day in Ningbo reaches about 27°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
32924
42924
52924
62924
72924
82924
92924
102824
112823
122823
132823
142823
152823
162723
172723
182722
192722
202722
212722
222622
232622
242621
252621
262621
272621
282621
292521
302520

How September really feels in Ningbo

Once humidity and wind are folded in, September averages 7 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
7
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ningbo weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8710.9110.31.7
Feb10° / 7910.30.810.92.3
Mar14° / 13013.80.111.83.7
Apr19° / 13°12912.8012.75.6
May24° / 18°16212.6013.56.3
Jun27° / 22°29217.3013.94.9
Jul32° / 26°15814013.73.5
Aug32° / 26°17516.2013.13.7
Sep27° / 23°15413.2012.25.7
Oct23° / 18°907.5011.37.1
Nov18° / 12°799.7010.55.6
Dec12° / 758.40.410.13.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24357
34357
44357
54357
64456
74456
84456
94456
104456
114357
124357
134456
144357
154258
164357
174357
184258
194357
204357
214456
224456
234555
244456
254456
264555
274555
284456
294555
304654

Chance of precipitation in September

Any precipitation

Ningbo gets around 154 mm of rain over 13.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 52% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
152
252
351
450
550
649
748
848
947
1047
1146
1246
1346
1445
1545
1645
1744
1843
1943
2042
2141
2240
2340
2439
2538
2637
2736
2835
2934
3033

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the oppressive band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 77% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1003192948
2004203045
3004223242
4005233339
5015253436
6016263533
7016263631
8017273728
9028273726
10029283724
11029283723
120311283721
130412283720
140413283618
150514293517
161516293416
171617293215
181619293114
191720303012
201721312911
212823302611
222824312510
23392531249
24392632238
253102731227
264112731216
274122831205
285132930195
295142929184
306162928173

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over September. Sunrise moves from 5:35 AM to 5:51 AM, and sunset from 6:12 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:356:12
212.65:356:11
312.65:366:10
412.55:366:09
512.55:376:08
612.55:376:06
712.55:386:05
812.45:386:04
912.45:396:02
1012.45:396:01
1112.35:406:00
1212.35:415:59
1312.35:415:57
1412.25:425:56
1512.25:425:55
1612.25:435:53
1712.15:435:52
1812.15:445:51
1912.15:445:50
2012.15:455:48
2112.05:465:47
2212.05:465:46
2312.05:475:44
2411.95:475:43
2511.95:485:42
2611.95:485:41
2711.85:495:39
2811.85:505:38
2911.85:505:37
3011.75:515:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.06 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.49 kWh/m² in July across the year — September's 4.06 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.5Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.3Bright
94.3Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.0Bright
154.0Bright
164.0Moderate
174.0Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Ningbo

In seasonPeak

In September, Ningbo sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Ningbo sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Ningbo?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.7
Sightseeing
3rd-best month of the year
6.1
Beach & pool
1st-best month of the year

September is a reasonable time to visit Ningbo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ningbo in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Ningbo sees daytime highs around 27°C and nights near 23°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Ningbo in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in August at about 28°C and coldest in February near 8°C.

It's comfortable for a long swim from May 30 to Nov 3 — about 5.2 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar10Bracing
Apr13Bracing
May18Cool
Jun22Refreshing
Jul26Warm
Aug28Warm
Sep26Warm
Oct23Refreshing
Nov18Cool
Dec13Bracing

UV index in Ningbo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ningbo peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highVery highHighModerateJul 17UV 11Dec 22UV 3
UV index (midday)Level
Jan4Moderate
Feb4Moderate
Mar7Very high
Apr7High
May8Very high
Jun8Very high
Jul11Extreme
Aug9Very high
Sep9Very high
Oct5High
Nov5Moderate
Dec3Moderate

Air quality in Ningbo in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Ningbo is worst in December — around 51 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (August, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ningbo's WHO annual average of 35.9 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 2451 µg/m³Aug 1822 µg/m³
PM2.5 (µg/m³)Level
Jan51Poor
Feb48Poor
Mar46Poor
Apr42Poor
May34Moderate
Jun27Moderate
Jul23Moderate
Aug22Moderate
Sep23Moderate
Oct28Moderate
Nov38Poor
Dec51Poor
Location & terrain

Where is Ningbo?

Ningbo sits at 29.9°N, 121.5°E, 15 m above sea level, in China. The nearest listed city is Hangzhou, 141 km away.

NanjingFuzhou

Topography around Ningbo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ningbo.

Within 3 km, the terrain around Ningbo has only modest variations in elevation — a maximum elevation change of 21 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 278 m; within 80 km, large variations in elevation — a maximum elevation change of 1,055 m.

The land around Ningbo is covered by artificial surfaces (74%) within 3 km, artificial surfaces (44%) and cropland (27%) within 16 km, and water (39%) and trees (36%) within 80 km.

3 km
21 m
16 km
278 m
80 km
1,055 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Hangzhou 141 km · Shanghai 150 km · Pingyao 163 km · Suzhou 183 km · Wuxi 223 km · Tunxi 313 km · Nanjing 359 km · Fuzhou 478 km

China travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / I
220 V · 50 Hz
Prices
≈ 47% of US
price level, 2025
GDP per capita
$13,862
2025
Happiness
6.1 / 10
World Happiness, 2025
Homicide rate
0.5
per 100k, 2020
Road deaths
17.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 464
Religion
unaffiliated 52%folk religion 22%Buddhist 18%Christian 5%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ningbo (29.8782°, 121.5494°, elevation 15 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).