Nagano (Japan) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 27° Celsius; Minimum nighttime temperature: 17° Celsius; -
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 17° Celsius;
-
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 13° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 13° Celsius; -
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 28° Celsius; Minimum nighttime temperature: 17° Celsius; -
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 29° Celsius; Minimum nighttime temperature: 17° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 11° Celsius;
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 11° Celsius;
Sunny intervals changing to partly cloudy by early evening.
Sunrise:
Sunset:
VH UV
No pollution data.
No pollen data.
8 day forecast for Nagano
Today (15 May 2025)
| Time |
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
 |
|
 |
|
|
| Chance of precipitation |
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
26°
|
26°
|
25°
|
24°
|
22°
|
22°
|
21°
|
20°
|
20°
|
| Feels like temperature (°C) |
26°
|
26°
|
25°
|
25°
|
23°
|
22°
|
21°
|
21°
|
20°
|
| Wind direction and speed |
SE
6
|
ESE
5
|
E
4
|
E
3
|
E
3
|
ESE
3
|
SE
4
|
SE
3
|
SE
3
|
| Wind gust (mph) |
18
|
15
|
10
|
10
|
9
|
10
|
9
|
9
|
9
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
40%
|
40%
|
43%
|
61%
|
68%
|
70%
|
67%
|
73%
|
74%
|
| UV | 4 | 1 | 1 | - | - | - | - | - | - |
Saturday (16 May 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
| Chance of precipitation |
<5%
|
20%
|
30%
|
60%
|
60%
|
80%
|
70%
|
60%
|
50%
|
40%
|
30%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
19°
|
19°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
17°
|
18°
|
19°
|
21°
|
22°
|
22°
|
24°
|
24°
|
24°
|
23°
|
22°
|
22°
|
21°
|
20°
|
20°
|
19°
|
| Feels like temperature (°C) |
20°
|
19°
|
19°
|
19°
|
18°
|
18°
|
17°
|
17°
|
18°
|
18°
|
19°
|
21°
|
22°
|
23°
|
24°
|
25°
|
25°
|
24°
|
24°
|
23°
|
23°
|
22°
|
22°
|
21°
|
| Wind direction and speed (mph) |
SSE
3
|
SSE
3
|
SSE
3
|
SSE
3
|
SE
3
|
SSE
3
|
SSE
5
|
SSE
5
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
6
|
SSE
5
|
SSE
4
|
SE
4
|
SE
3
|
SSE
3
|
SSE
3
|
S
3
|
SSW
3
|
| Wind gust (mph) |
9
|
9
|
9
|
10
|
10
|
12
|
13
|
15
|
17
|
18
|
19
|
21
|
20
|
19
|
17
|
16
|
14
|
11
|
9
|
8
|
6
|
6
|
6
|
6
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
| Humidity |
76%
|
78%
|
82%
|
86%
|
89%
|
95%
|
97%
|
97%
|
94%
|
92%
|
86%
|
79%
|
74%
|
75%
|
70%
|
72%
|
73%
|
76%
|
80%
|
87%
|
90%
|
92%
|
93%
|
95%
|
| UV | - | - | - | - | - | - | 1 | 2 | 3 | 5 | 4 | 7 | 5 | 7 | 5 | 3 | 1 | 1 | - | - | - | - | - | - |
Sunday (17 May 2025)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
 |
|
|
|
|
|
 |
 |
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
30%
|
| Temperature (°C) |
19°
|
18°
|
18°
|
18°
|
18°
|
17°
|
18°
|
19°
|
21°
|
23°
|
27°
|
25°
|
19°
|
16°
|
| Feels like temperature (°C) |
20°
|
20°
|
19°
|
19°
|
19°
|
18°
|
19°
|
20°
|
23°
|
25°
|
28°
|
25°
|
18°
|
15°
|
| Wind direction and speed (mph) |
SSW
3
|
SSW
3
|
SW
3
|
SW
3
|
SW
3
|
SW
3
|
SW
2
|
SW
2
|
SSW
3
|
S
3
|
SSW
2
|
NNE
7
|
N
8
|
N
5
|
| Wind gust (mph) |
6
|
6
|
6
|
6
|
7
|
7
|
7
|
9
|
10
|
15
|
20
|
24
|
20
|
15
|
| Visibility (description) |
G
|
G
|
G
|
M
|
M
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
M
|
| Humidity |
96%
|
97%
|
98%
|
99%
|
99%
|
99%
|
98%
|
94%
|
85%
|
73%
|
43%
|
58%
|
90%
|
92%
|
| UV | - | - | - | - | - | - | 1 | 2 | 5 | 7 | 7 | 2 | - | - |
Monday (18 May 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
16°
|
18°
|
19°
|
17°
|
15°
|
| Feels like temperature (°C) |
14°
|
13°
|
14°
|
16°
|
18°
|
19°
|
17°
|
15°
|
| Wind direction and speed (mph) |
N
5
|
N
4
|
N
3
|
ESE
2
|
SE
3
|
SE
5
|
SE
5
|
SSE
5
|
| Wind gust (mph) |
13
|
11
|
9
|
12
|
16
|
16
|
13
|
11
|
| Visibility (description) |
M
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
| Humidity |
93%
|
93%
|
91%
|
74%
|
67%
|
70%
|
77%
|
90%
|
| UV | - | - | 1 | 2 | 4 | 2 | - | - |
Tuesday (19 May 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
13°
|
14°
|
21°
|
26°
|
28°
|
27°
|
22°
|
| Feels like temperature (°C) |
14°
|
13°
|
14°
|
22°
|
26°
|
29°
|
29°
|
24°
|
| Wind direction and speed (mph) |
S
3
|
SSW
3
|
SSW
3
|
S
3
|
SSE
3
|
NW
2
|
N
2
|
NNW
2
|
| Wind gust (mph) |
10
|
10
|
12
|
15
|
16
|
13
|
9
|
7
|
| Visibility (description) |
G
|
M
|
G
|
VG
|
G
|
G
|
G
|
G
|
| Humidity |
96%
|
98%
|
95%
|
58%
|
40%
|
35%
|
68%
|
76%
|
| UV | - | - | 1 | 7 | 9 | 4 | - | - |
Wednesday (20 May 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
20°
|
18°
|
18°
|
24°
|
28°
|
29°
|
25°
|
21°
|
| Feels like temperature (°C) |
21°
|
19°
|
19°
|
25°
|
29°
|
29°
|
26°
|
22°
|
| Wind direction and speed (mph) |
W
3
|
WSW
3
|
WSW
3
|
SSW
2
|
NNE
1
|
N
4
|
NNE
5
|
NNE
5
|
| Wind gust (mph) |
8
|
7
|
9
|
13
|
15
|
15
|
14
|
12
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
81%
|
86%
|
84%
|
59%
|
43%
|
46%
|
72%
|
86%
|
| UV | - | - | 1 | 7 | 8 | 3 | - | - |
Thursday (21 May 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
10%
|
20%
|
30%
|
30%
|
20%
|
20%
|
| Temperature (°C) |
19°
|
18°
|
18°
|
20°
|
23°
|
22°
|
18°
|
14°
|
| Feels like temperature (°C) |
20°
|
19°
|
19°
|
21°
|
23°
|
20°
|
17°
|
14°
|
| Wind direction and speed (mph) |
N
4
|
NNW
3
|
NW
3
|
N
2
|
N
4
|
N
7
|
N
6
|
N
4
|
| Wind gust (mph) |
10
|
8
|
12
|
16
|
21
|
21
|
18
|
12
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
90%
|
91%
|
86%
|
67%
|
49%
|
50%
|
68%
|
85%
|
| UV | - | - | 1 | 7 | 8 | 4 | - | - |
Friday (22 May 2025)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
13°
|
12°
|
12°
|
16°
|
20°
|
20°
|
17°
|
14°
|
| Feels like temperature (°C) |
13°
|
12°
|
12°
|
16°
|
18°
|
19°
|
16°
|
14°
|
| Wind direction and speed (mph) |
N
4
|
NNW
3
|
NNW
3
|
N
3
|
NNE
5
|
N
6
|
N
6
|
NNE
3
|
| Wind gust (mph) |
9
|
8
|
14
|
18
|
22
|
22
|
16
|
9
|
| Visibility (description) |
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
92%
|
93%
|
86%
|
56%
|
42%
|
40%
|
56%
|
76%
|
| UV | - | - | 1 | 7 | 10 | 4 | - | - |
Tooltip header
UK video forecast
weather map
Forecast
Forecast for 15:00 (UTC+9), Fri
Updated 01:21 (UTC+1) on Fri 16 May 2025
Loading map...
More from the Met Office
-
CAUSES OF CLIMATE CHANGE
Causes of climate change
Read -
NEWS AND MEDIA
Forecasting the weather
Read -
WEATHER
When does winter start?
Read -
WHO WE ARE
Celebrating Lewis Fry Richardson and his legacy
Read -
MET OFFICE FOR SCHOOLS
Weather memories DIY activity
Read -
SEASONAL ADVICE
3 tips for staying safe in lightning
Read