Annual mean 17°C · wettest around July · prevailing wind E
Warmest
30.5 °C
Coldest
8.8 °C
Wettest
33%
Windiest
2.6 m/s
Prevailing
E
2.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Jiannan over the whole year is 17°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 4°C. The rainy (wet) season in Jiannan runs from March to October, peaking in July with a 33% chance of rain on a given day. The dry season is November to February; December is the driest month, at 5%. Winds in Jiannan are highest in April, averaging 2.0 m/s (7 km/h), and lightest in December, at 1.5 m/s (5 km/h). The prevailing wind is from the E. The clearest skies in Jiannan come in August, when the sky is typically 71% covered; October is the cloudiest month, at 84%.
Month by month Jiannan 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
9°C
4°C
6°C
7%
75%
1.6 m/s
1
0
51
February
11°C
5°C
8°C
13%
77%
1.7 m/s
13
0
63
March
17°C
10°C
14°C
20%
79%
1.9 m/s
48
5
76
April
22°C
15°C
20°C
24%
75%
2.0 m/s
69
25
56
May
25°C
18°C
24°C
23%
78%
2.0 m/s
57
50
30
June
27°C
22°C
29°C
24%
78%
1.8 m/s
28
58
12
July
29°C
24°C
32°C
33%
75%
1.9 m/s
15
36
7
August
30°C
24°C
33°C
29%
71%
1.8 m/s
15
30
7
September
25°C
20°C
26°C
31%
84%
1.7 m/s
50
49
23
October
19°C
15°C
19°C
26%
84%
1.6 m/s
76
10
72
November
15°C
10°C
13°C
11%
78%
1.6 m/s
45
0
80
December
10°C
4°C
7°C
5%
73%
1.5 m/s
2
0
58
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 Jiannan weather by season
Year round, Jiannan has days of about 9°C at their warmest in January, its coolest month, and 30°C in August, its warmest; the coolest hours of the day run from 4°C to 24°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.
Jiannan weather in winterDecember to February
High 10°CLow 4°CRain 9%
Winter in Jiannan has typical daily highs of about 10°C and lows of about 4°C, with a 9% chance of rain on a given day.
Jiannan weather in springMarch to May
High 21°CLow 14°CRain 22%
Spring in Jiannan has typical daily highs of about 21°C and lows of about 14°C, with a 22% chance of rain on a given day.
Jiannan weather in summerJune to August
High 29°CLow 23°CRain 29%
Summer in Jiannan has typical daily highs of about 29°C and lows of about 23°C, with a 29% chance of rain on a given day.
Jiannan weather in autumnSeptember to November
High 20°CLow 15°CRain 23%
Autumn in Jiannan has typical daily highs of about 20°C and lows of about 15°C, with a 23% chance of rain on a given day.
When is the rainy season in Jiannan?
The rainy (wet) season in Jiannan runs from March to October, peaking in July with a 33% chance of rain on a given day. The dry season is November to February; December is the driest month, at 5%.
What time of year is Jiannan windiest?
Winds in Jiannan are highest in April, averaging 2.0 m/s (7 km/h), and lightest in December, at 1.5 m/s (5 km/h). The prevailing wind is from the E.
What is the average temperature in Jiannan year round?
The average temperature in Jiannan over the whole year is 17°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 4°C.