Annual mean 16°C · wettest around September · prevailing wind E
Warmest
31.3 °C
Coldest
8.1 °C
Wettest
29%
Windiest
4.2 m/s
Prevailing
E
3.5 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 Jōsō over the whole year is 16°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 2°C. The rainy (wet) season in Jōsō runs from March to October, peaking in September with a 22% chance of rain on a given day. The dry season is November to February; January is the driest month, at 6%. Winds in Jōsō are highest in April, averaging 3.5 m/s (13 km/h), and lightest in November, at 2.4 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Jōsō come in January, when the sky is typically 49% covered; June is the cloudiest month, at 77%.
Month by month Jōsō 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
8°C
2°C
4°C
6%
49%
2.6 m/s
0
0
26
February
9°C
3°C
5°C
8%
56%
3.0 m/s
2
0
32
March
13°C
7°C
9°C
17%
64%
3.1 m/s
16
0
61
April
18°C
12°C
15°C
18%
68%
3.5 m/s
49
2
77
May
22°C
17°C
20°C
18%
73%
3.3 m/s
80
15
64
June
25°C
21°C
26°C
22%
77%
3.1 m/s
63
42
28
July
29°C
25°C
32°C
19%
75%
3.2 m/s
19
40
6
August
31°C
26°C
33°C
17%
72%
3.2 m/s
10
32
2
September
27°C
22°C
28°C
22%
77%
3.0 m/s
44
45
18
October
21°C
16°C
20°C
19%
71%
2.8 m/s
70
17
64
November
16°C
10°C
13°C
10%
60%
2.4 m/s
42
0
81
December
11°C
5°C
7°C
6%
52%
2.4 m/s
3
0
49
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 Jōsō weather by season
Year round, Jōsō has days of about 8°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 2°C to 26°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around September and least likely around January. 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.
Jōsō weather in winterDecember to February
High 9°CLow 3°CRain 6%
Winter in Jōsō has typical daily highs of about 9°C and lows of about 3°C, with a 6% chance of rain on a given day.
Jōsō weather in springMarch to May
High 18°CLow 12°CRain 17%
Spring in Jōsō has typical daily highs of about 18°C and lows of about 12°C, with a 17% chance of rain on a given day.
Jōsō weather in summerJune to August
High 28°CLow 24°CRain 19%
Summer in Jōsō has typical daily highs of about 28°C and lows of about 24°C, with a 19% chance of rain on a given day.
Jōsō weather in autumnSeptember to November
High 21°CLow 16°CRain 17%
Autumn in Jōsō has typical daily highs of about 21°C and lows of about 16°C, with a 17% chance of rain on a given day.
When is the rainy season in Jōsō?
The rainy (wet) season in Jōsō runs from March to October, peaking in September with a 22% chance of rain on a given day. The dry season is November to February; January is the driest month, at 6%.
What time of year is Jōsō windiest?
Winds in Jōsō are highest in April, averaging 3.5 m/s (13 km/h), and lightest in November, at 2.4 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Jōsō year round?
The average temperature in Jōsō over the whole year is 16°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 2°C.