Annual mean 17°C · wettest around July · prevailing wind E
Warmest
32.1 °C
Coldest
5.1 °C
Wettest
34%
Windiest
3.7 m/s
Prevailing
E
3.1 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 Hai’an over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 1°C. Hai’an has no sharply defined rainy season: the chance of rain on a given day runs from 15% in December, the driest month, to 27% in July, the wettest. Winds in Hai’an are highest in March, averaging 2.9 m/s (10 km/h), and lightest in October, at 2.2 m/s (8 km/h). The prevailing wind is from the E. The clearest skies in Hai’an come in December, when the sky is typically 64% covered; June is the cloudiest month, at 79%.
Month by month Hai’an 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
6°C
1°C
2°C
21%
75%
2.4 m/s
0
0
16
February
8°C
3°C
3°C
18%
72%
2.7 m/s
2
0
26
March
14°C
7°C
10°C
17%
73%
2.9 m/s
21
1
64
April
19°C
12°C
17°C
15%
72%
2.8 m/s
61
8
76
May
24°C
17°C
23°C
17%
77%
2.6 m/s
75
33
47
June
27°C
22°C
29°C
26%
79%
2.4 m/s
33
60
8
July
31°C
26°C
35°C
27%
75%
2.7 m/s
5
27
0
August
31°C
26°C
36°C
23%
73%
2.4 m/s
4
22
1
September
27°C
22°C
29°C
21%
76%
2.3 m/s
38
60
9
October
21°C
15°C
20°C
22%
73%
2.2 m/s
77
13
68
November
16°C
10°C
13°C
19%
71%
2.4 m/s
43
2
74
December
8°C
3°C
4°C
15%
64%
2.2 m/s
3
0
33
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 Hai’an weather by season
Year round, Hai’an has days of about 6°C at their warmest in January, its coolest month, and 31°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 July 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.
Hai’an weather in winterDecember to February
High 7°CLow 2°CRain 18%
Winter in Hai’an has typical daily highs of about 7°C and lows of about 2°C, with a 18% chance of rain on a given day.
Hai’an weather in springMarch to May
High 19°CLow 12°CRain 17%
Spring in Hai’an has typical daily highs of about 19°C and lows of about 12°C, with a 17% chance of rain on a given day.
Hai’an weather in summerJune to August
High 30°CLow 25°CRain 25%
Summer in Hai’an has typical daily highs of about 30°C and lows of about 25°C, with a 25% chance of rain on a given day.
Hai’an weather in autumnSeptember to November
High 21°CLow 15°CRain 21%
Autumn in Hai’an 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 Hai’an?
Hai’an has no sharply defined rainy season: the chance of rain on a given day runs from 15% in December, the driest month, to 27% in July, the wettest.
What time of year is Hai’an windiest?
Winds in Hai’an are highest in March, averaging 2.9 m/s (10 km/h), and lightest in October, at 2.2 m/s (8 km/h). The prevailing wind is from the E.
What is the average temperature in Hai’an year round?
The average temperature in Hai’an over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 1°C.