Annual mean 13°C · wettest around July · prevailing wind NW
Warmest
30.9 °C
Coldest
2.9 °C
Wettest
34%
Windiest
4.1 m/s
Prevailing
NW
3.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Ōmachi over the whole year is 13°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -1°C. Ōmachi has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 23% in July, the wettest. Winds in Ōmachi are highest in April, averaging 3.1 m/s (11 km/h), and lightest in January, at 2.4 m/s (9 km/h). The prevailing wind is from the NW. The clearest skies in Ōmachi come in November, when the sky is typically 64% covered; September is the cloudiest month, at 78%.
Month by month Ōmachi 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
4°C
-1°C
-1°C
18%
69%
2.4 m/s
0
0
6
February
4°C
-1°C
-0°C
17%
69%
2.7 m/s
0
0
10
March
10°C
3°C
5°C
16%
66%
2.9 m/s
6
0
39
April
16°C
8°C
12°C
15%
66%
3.1 m/s
33
1
72
May
21°C
14°C
18°C
15%
68%
2.9 m/s
73
10
73
June
24°C
18°C
24°C
18%
75%
2.6 m/s
71
39
41
July
28°C
23°C
30°C
23%
75%
2.4 m/s
24
56
6
August
30°C
24°C
32°C
16%
72%
2.5 m/s
16
53
4
September
25°C
19°C
26°C
20%
78%
2.4 m/s
57
47
29
October
18°C
13°C
17°C
17%
72%
2.4 m/s
59
9
74
November
13°C
6°C
9°C
14%
64%
2.4 m/s
18
0
65
December
6°C
1°C
2°C
19%
69%
2.5 m/s
1
0
18
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 Ōmachi weather by season
Year round, Ōmachi has days of about 4°C at their warmest in January, its coolest month, and 30°C in August, its warmest; the coolest hours of the day run from -1°C to 24°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around July and least likely around November. 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.
Ōmachi weather in winterDecember to February
High 5°CLow -0°CRain 18%
Winter in Ōmachi has typical daily highs of about 5°C and lows of about -0°C, with a 18% chance of rain on a given day.
Ōmachi weather in springMarch to May
High 16°CLow 8°CRain 15%
Spring in Ōmachi has typical daily highs of about 16°C and lows of about 8°C, with a 15% chance of rain on a given day.
Ōmachi weather in summerJune to August
High 27°CLow 21°CRain 19%
Summer in Ōmachi has typical daily highs of about 27°C and lows of about 21°C, with a 19% chance of rain on a given day.
Ōmachi weather in autumnSeptember to November
High 19°CLow 13°CRain 17%
Autumn in Ōmachi has typical daily highs of about 19°C and lows of about 13°C, with a 17% chance of rain on a given day.
When is the rainy season in Ōmachi?
Ōmachi has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 23% in July, the wettest.
What time of year is Ōmachi windiest?
Winds in Ōmachi are highest in April, averaging 3.1 m/s (11 km/h), and lightest in January, at 2.4 m/s (9 km/h). The prevailing wind is from the NW.
What is the average temperature in Ōmachi year round?
The average temperature in Ōmachi over the whole year is 13°C. August is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -1°C.