Weather Forecast for Karuizawa
Nagano, Japan
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Current Weather - Karuizawa: 19°C
Current Weather - Karuizawa: 19°C
Nagano, Japan
Light rain shower
Feels like 21°C
Wind
6 km/h ENE
Humidity
99%
Pressure
1012 mb
UV Index
0
Visibility
10 km
Fog
Friday, August 14, 2026
High
23°C
Low
18°C
Rain Chance
92%
Hourly Forecast
22°C
23°C
23°C
22°C
21°C
20°C
19°C
19°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
10 km/h
Humidity
95%
Precipitation
9 mm
UV Index
8
Visibility
5 km
Rain Chance
92%
Snow Chance
0%
Sun & Moon
Sunrise
05:02 AM
Sunset
06:37 PM
Moonrise
06:11 AM
Moonset
07:23 PM
Moon Phase
Waxing Crescent
Moon Illumination
5%
Air Quality
PM2.5
2
μg/m³
PM10
2.2
μg/m³
NO₂
6.3
μg/m³
O₃
39.2
μg/m³
SO₂
2.2
μg/m³
CO
107.3
μg/m³
Fog
Saturday, August 15, 2026
High
23°C
Low
18°C
Rain Chance
90%
Hourly Forecast
19°C
19°C
18°C
18°C
18°C
18°C
19°C
19°C
19°C
20°C
22°C
23°C
23°C
23°C
22°C
22°C
22°C
21°C
20°C
18°C
18°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
10 km/h
Humidity
93%
Precipitation
6 mm
UV Index
8
Visibility
5 km
Rain Chance
90%
Snow Chance
0%
Sun & Moon
Sunrise
05:03 AM
Sunset
06:36 PM
Moonrise
07:24 AM
Moonset
07:52 PM
Moon Phase
Waxing Crescent
Moon Illumination
11%
Air Quality
PM2.5
3.6
μg/m³
PM10
4.2
μg/m³
NO₂
6.5
μg/m³
O₃
48.7
μg/m³
SO₂
3.5
μg/m³
CO
109.3
μg/m³
Partly Cloudy
Sunday, August 16, 2026
High
23°C
Low
15°C
Rain Chance
41%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
16°C
17°C
17°C
18°C
19°C
21°C
22°C
22°C
23°C
23°C
23°C
22°C
22°C
20°C
17°C
16°C
16°C
16°C
15°C
Day Statistics
Maximum Wind
12 km/h
Humidity
85%
Precipitation
0 mm
UV Index
5
Visibility
6 km
Rain Chance
41%
Snow Chance
0%
Sun & Moon
Sunrise
05:04 AM
Sunset
06:35 PM
Moonrise
08:35 AM
Moonset
08:19 PM
Moon Phase
Waxing Crescent
Moon Illumination
18%
Air Quality
PM2.5
6.7
μg/m³
PM10
8.1
μg/m³
NO₂
5.4
μg/m³
O₃
59
μg/m³
SO₂
3.5
μg/m³
CO
106.5
μg/m³
Partly Cloudy
Monday, August 17, 2026
High
26°C
Low
15°C
Rain Chance
23%
Hourly Forecast
15°C
16°C
16°C
16°C
16°C
16°C
17°C
18°C
20°C
22°C
24°C
25°C
26°C
26°C
26°C
25°C
24°C
23°C
21°C
19°C
19°C
18°C
17°C
17°C
Day Statistics
Maximum Wind
12 km/h
Humidity
80%
Precipitation
0 mm
UV Index
3
Visibility
8 km
Rain Chance
23%
Snow Chance
0%
Sun & Moon
Sunrise
05:05 AM
Sunset
06:34 PM
Moonrise
09:45 AM
Moonset
08:48 PM
Moon Phase
Waxing Crescent
Moon Illumination
27%
Air Quality
PM2.5
13.9
μg/m³
PM10
15.2
μg/m³
NO₂
5.7
μg/m³
O₃
82
μg/m³
SO₂
4.4
μg/m³
CO
140.1
μg/m³
Patchy rain nearby
Tuesday, August 18, 2026
High
28°C
Low
17°C
Rain Chance
42%
Hourly Forecast
17°C
17°C
17°C
17°C
17°C
17°C
18°C
20°C
23°C
25°C
22°C
25°C
28°C
26°C
26°C
28°C
25°C
23°C
22°C
19°C
19°C
19°C
19°C
18°C
Day Statistics
Maximum Wind
12 km/h
Humidity
80%
Precipitation
1 mm
UV Index
9
Visibility
9 km
Rain Chance
42%
Snow Chance
0%
Sun & Moon
Sunrise
05:06 AM
Sunset
06:32 PM
Moonrise
10:53 AM
Moonset
09:19 PM
Moon Phase
First Quarter
Moon Illumination
37%
Air Quality
PM2.5
13.5
μg/m³
PM10
14.1
μg/m³
NO₂
6.7
μg/m³
O₃
77.7
μg/m³
SO₂
5.2
μg/m³
CO
197.3
μg/m³
Patchy rain nearby
Wednesday, August 19, 2026
High
29°C
Low
17°C
Rain Chance
61%
Hourly Forecast
18°C
18°C
17°C
17°C
17°C
18°C
18°C
21°C
23°C
26°C
27°C
28°C
29°C
29°C
29°C
29°C
26°C
24°C
22°C
21°C
21°C
20°C
19°C
19°C
Day Statistics
Maximum Wind
7 km/h
Humidity
79%
Precipitation
2 mm
UV Index
7
Visibility
8 km
Rain Chance
61%
Snow Chance
0%
Sun & Moon
Sunrise
05:06 AM
Sunset
06:31 PM
Moonrise
12:00 PM
Moonset
09:55 PM
Moon Phase
First Quarter
Moon Illumination
48%
Mist
Thursday, August 20, 2026
High
29°C
Low
18°C
Rain Chance
82%
Hourly Forecast
19°C
18°C
18°C
18°C
18°C
18°C
19°C
21°C
23°C
26°C
27°C
28°C
29°C
28°C
27°C
26°C
24°C
22°C
20°C
20°C
20°C
19°C
19°C
19°C
Day Statistics
Maximum Wind
5 km/h
Humidity
83%
Precipitation
15 mm
UV Index
7
Visibility
7 km
Rain Chance
82%
Snow Chance
0%
Sun & Moon
Sunrise
05:07 AM
Sunset
06:30 PM
Moonrise
01:05 PM
Moonset
10:35 PM
Moon Phase
First Quarter
Moon Illumination
58%
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