Annual mean 17°C · wettest around June · prevailing wind E
Warmest
33.2 °C
Coldest
5.7 °C
Wettest
41%
Windiest
3.8 m/s
Prevailing
E
3.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Nanjing over the whole year is 17°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 1°C. Nanjing has no sharply defined rainy season: the chance of rain on a given day runs from 16% in December, the driest month, to 29% in June, the wettest. Winds in Nanjing are highest in March, averaging 2.9 m/s (10 km/h), and lightest in December, at 2.2 m/s (8 km/h). The prevailing wind is from the E. The clearest skies in Nanjing come in December, when the sky is typically 51% covered; May is the cloudiest month, at 65%.
Month by month Nanjing climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
1°C
3°C
22%
62%
2.4 m/s
1
0
23
February
8°C
3°C
4°C
22%
59%
2.7 m/s
5
0
33
March
15°C
8°C
11°C
21%
59%
2.9 m/s
29
3
67
April
21°C
13°C
18°C
17%
60%
2.8 m/s
64
17
66
May
25°C
18°C
24°C
19%
65%
2.7 m/s
64
42
37
June
28°C
23°C
30°C
29%
63%
2.6 m/s
26
52
7
July
31°C
26°C
35°C
27%
63%
2.8 m/s
6
22
2
August
32°C
26°C
36°C
21%
59%
2.6 m/s
5
19
2
September
27°C
21°C
29°C
20%
63%
2.4 m/s
36
56
11
October
21°C
15°C
20°C
23%
59%
2.3 m/s
75
13
67
November
16°C
9°C
13°C
19%
54%
2.4 m/s
45
3
72
December
8°C
2°C
5°C
16%
51%
2.2 m/s
3
0
37
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Nanjing weather by season
Year round, Nanjing has days of about 7°C at their warmest in January, its coolest month, and 32°C in August, its warmest; the coolest hours of the day run from 1°C to 26°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around June and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Nanjing weather in winterDecember to February
High 8°CLow 2°CRain 20%
Winter in Nanjing has typical daily highs of about 8°C and lows of about 2°C, with a 20% chance of rain on a given day.
Nanjing weather in springMarch to May
High 20°CLow 13°CRain 19%
Spring in Nanjing has typical daily highs of about 20°C and lows of about 13°C, with a 19% chance of rain on a given day.
Nanjing weather in summerJune to August
High 30°CLow 25°CRain 26%
Summer in Nanjing has typical daily highs of about 30°C and lows of about 25°C, with a 26% chance of rain on a given day.
Nanjing weather in autumnSeptember to November
High 21°CLow 15°CRain 21%
Autumn in Nanjing has typical daily highs of about 21°C and lows of about 15°C, with a 21% chance of rain on a given day.
When is the rainy season in Nanjing?
Nanjing has no sharply defined rainy season: the chance of rain on a given day runs from 16% in December, the driest month, to 29% in June, the wettest.
What time of year is Nanjing windiest?
Winds in Nanjing are highest in March, averaging 2.9 m/s (10 km/h), and lightest in December, at 2.2 m/s (8 km/h). The prevailing wind is from the E.
What is the average temperature in Nanjing year round?
The average temperature in Nanjing over the whole year is 17°C. August is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 1°C.