Hourly Weather in Arai, Niigata Prefecture, Japan
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
2 mph
Calm
2 mph
Calm
4 mph
Calm
6 mph
Light
6 mph
Light
5 mph
Light
5 mph
Light
5 mph
Calm
4 mph
Calm
Humidity
69%
Humid
77%
Extremely humid
78%
Extremely humid
78%
Extremely humid
80%
Extremely humid
84%
Extremely humid
87%
Extremely humid
89%
Extremely humid
90%
Extremely humid
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1018 hPa
High
1019 hPa
High
1019 hPa
High
1019 hPa
High
1019 hPa
High
1020 hPa
High
Clouds
100%
91%
2%
88%
45%
99%
86%
100%
91%
Dew point
59°
61°
60°
58°
57°
57°
57°
56°
56°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
52
Moderate
55
Moderate
66
Moderate
80
Moderate
92
Moderate
102
Unhealthy for sensitive groups
110
Unhealthy for sensitive groups
114
Unhealthy for sensitive groups
115
Unhealthy for sensitive groups
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
0.35 μg/ft3
0.39 μg/ft3
0.52 μg/ft3
0.69 μg/ft3
0.83 μg/ft3
0.96 μg/ft3
1.04 μg/ft3
1.08 μg/ft3
1.09 μg/ft3
PM25
1.48 μg/ft3
1.56 μg/ft3
1.87 μg/ft3
2.27 μg/ft3
2.61 μg/ft3
2.89 μg/ft3
3.13 μg/ft3
3.23 μg/ft3
3.25 μg/ft3
NO2
5.6 ppb
13 ppb
20.3 ppb
27.7 ppb
30 ppb
32.3 ppb
34.6 ppb
33.1 ppb
31.7 ppb
SO2
2.9 ppb
3.6 ppb
4.3 ppb
5 ppb
5.7 ppb
6.4 ppb
7 ppb
6.7 ppb
6.4 ppb
CO
0.2 ppb
0.3 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.5 ppb
0.5 ppb
0.4 ppb
O3
38.9 ppb
35.6 ppb
29.2 ppb
21.3 ppb
15.4 ppb
10.5 ppb
6.2 ppb
4 ppb
2.8 ppb