Sumiyama Weather Conditions
Current Temperature Level
31 °C
53 AQI
Air quality index is: Moderate
Last Updated: 2025-08-31 09:00 (Local Time)
MapSumiyama
Sumiyama Weather Parameters
4 km/h
3 m/s
228° SW
25 %
10 km
0 mm
1014 mb
UV Index4
Suggestions for
TodaySumiyama31 Aug.
Heat Stroke• Avoid Outdoor 
Clothing• Breathable
Driving• Enjoy Driving
Sunscreen• ApplyTrending in Japan
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Sumiyama 10-Days Weather Forecast
Today
30°C
58 %Monday
29°C63 %Tuesday
29°C60 %Wednesday
28°C66 %Thursday
27°C73 %Friday
26°C78 %Saturday
28°C62 %Sunday
28°C65 %Monday
28°C71 %Tuesday
25°C83 %Sunny
Clear Sky with temperature at 30 °C and humidity will be at 58% with 10.8 km/h winds.37°C / 25°C
Humi.58 %
Prec.0 mm
Sunrise
05:29 AM12hrs 56min
Sunset
06:25 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Clear
26 °C
68 %
0
4.3 kmph / NW
Clear 
Feels 27.6 °C
Cover 9 %
Visibility 10 km
1 AM
Clear
26 °C
69 %
0
3.2 kmph / WNW
Clear Feels 27.3 °C
Cover 11 %
Visibility 10 km
2 AM
Clear
25 °C
70 %
0
2.9 kmph / NW
Clear Feels 27 °C
Cover 9 %
Visibility 10 km
3 AM
Clear
25 °C
71 %
0
3.2 kmph / NW
Clear Feels 26.7 °C
Cover 8 %
Visibility 10 km
4 AM
Clear
25 °C
72 %
0
2.2 kmph / NW
Clear Feels 26.4 °C
Cover 7 %
Visibility 10 km
5 AM
Clear
25 °C
73 %
0
2.2 kmph / NW
Clear Feels 26.3 °C
Cover 7 %
Visibility 10 km
6 AM
Sunny
25 °C
73 %
0.1
1.8 kmph / NW
SunnyFeels 26.5 °C
Cover 6 %
Visibility 10 km
7 AM
Sunny
28 °C
69 %
0.7
1.4 kmph / WNW
SunnyFeels 29.8 °C
Cover 5 %
Visibility 10 km
8 AM
Sunny
30 °C
62 %
2.1
1.8 kmph / W
SunnyFeels 32.4 °C
Cover 6 %
Visibility 10 km
9 AM
Sunny
31 °C
63 %
4.2
3.6 kmph / SW
SunnyFeels 34.9 °C
Cover 25 %
Visibility 10 km
10 AM
Sunny
33 °C
51 %
6.5
2.9 kmph / SW
SunnyFeels 37.1 °C
Cover 6 %
Visibility 10 km
11 AM
Sunny
34 °C
47 %
8.3
3.2 kmph / SW
SunnyFeels 38.9 °C
Cover 6 %
Visibility 10 km
12 PM
Sunny
36 °C
44 %
8.9
4.3 kmph / SW
SunnyFeels 40.1 °C
Cover 5 %
Visibility 10 km
1 PM
Sunny
36 °C
41 %
8.2
5 kmph / SW
SunnyFeels 40.5 °C
Cover 7 %
Visibility 10 km
2 PM
Sunny
37 °C
39 %
6.3
5 kmph / SW
SunnyFeels 40.5 °C
Cover 16 %
Visibility 10 km
3 PM
Sunny
37 °C
38 %
3.9
5.4 kmph / SW
SunnyFeels 40.2 °C
Cover 18 %
Visibility 10 km
4 PM
Sunny
36 °C
38 %
1.9
6.8 kmph / WSW
SunnyFeels 39.6 °C
Cover 16 %
Visibility 10 km
5 PM
Sunny
35 °C
42 %
0.6
8.6 kmph / WSW
SunnyFeels 39.1 °C
Cover 16 %
Visibility 10 km
6 PM
Sunny
32 °C
50 %
0
10.8 kmph / SW
SunnyFeels 34.8 °C
Cover 17 %
Visibility 10 km
7 PM
Clear
29 °C
56 %
0
10.1 kmph / SW
Clear Feels 31.5 °C
Cover 15 %
Visibility 10 km
8 PM
Clear
28 °C
61 %
0
8.6 kmph / SW
Clear Feels 30.3 °C
Cover 19 %
Visibility 10 km
9 PM
Clear
28 °C
64 %
0
7.9 kmph / SW
Clear Feels 29.4 °C
Cover 20 %
Visibility 10 km
10 PM
Clear
27 °C
66 %
0
6.8 kmph / SW
Clear Feels 28.6 °C
Cover 18 %
Visibility 10 km
11 PM
Clear
26 °C
68 %
0
5.8 kmph / SW
Clear Feels 28.1 °C
Cover 19 %
Visibility 10 km
Today
30°C58 %Monday
29°C63 %Tuesday
29°C60 %Wednesday
28°C66 %Thursday
27°C73 %Friday
26°C78 %Saturday
28°C62 %Sunday
28°C65 %Monday
28°C71 %Tuesday
25°C83 %Temp33 °C
ConditionSunny
Humidity51 %
Feels37.1 °C
Cover6 %
Visibility10 km
Wind Speed & Dir.2.9 kmph / SW
UV6.5
Sumiyama 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
35°25 °C
2Sat.
35°26 °C
3Sun.
37°25 °C
4Mon.
35°25 °C
5Tue.
35°24 °C
6Wed.
36°26 °C
7Thu.
32°23 °C
8Fri.
33°22 °C
9Sat.
31°22 °C
10Sun.
25°23 °C
11Mon.
30°24 °C
12Tue.
26°24 °C
13Wed.
30°24 °C
14Thu.
34°23 °C
15Fri.
33°23 °C
16Sat.
34°24 °C
17Sun.
34°24 °C
18Mon.
35°23 °C
19Tue.
34°24 °C
20Wed.
35°24 °C
21Thu.
35°23 °C
22Fri.
34°24 °C
23Sat.
34°24 °C
24Sun.
34°26 °C
25Mon.
35°25 °C
26Tue.
33°25 °C
27Wed.
33°24 °C
28Thu.
33°23 °C
29Fri.
34°25 °C
30Sat.
35°24 °C
31Today
36°25 °C
AugustWeather Overview
No. of days:
Sunny
5
Cloudy
1
Rainy
25
Snowy
0
The monthly weather averages in Sumiyama consist of 5 sunny days, 1 cloudy days, 25 rainy days, and 0 snowy days.
Sumiyama's Locations Weather Conditions
Japan's Hottest Cities - August 2025
1.
Hinohara, Japan
Partly cloudy
71%
2.3
6.1 kmph / NE
2.
Kumagaya, Japan
Sunny
52%
2.2
3.6 kmph / E
3.
Atsugi, Japan
Partly cloudy
71%
2.3
9.4 kmph / NE
4.
Suginami City, Japan
Partly cloudy
71%
2.4
11.9 kmph / ENE
5.
Koganei, Japan
Partly cloudy
71%
2.4
11.2 kmph / NE
6.
Kusatsu, Japan
Sunny
63%
2.2
3.6 kmph / W
7.
Sandacho, Japan
Sunny
63%
2.1
3.6 kmph / W
8.
Daiwanishi, Japan
Sunny
63%
2.1
3.6 kmph / WSW
9.
Sumiyama, Japan
Sunny
63%
2.1
3.6 kmph / W
10.
Itami, Japan
Sunny
63%
2
3.6 kmph / SW
Last Updated: 31 Aug 2025, 12:20 AM
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