skydelta.io

Best time to visit Nagano

Monthly weather scores combine temperatures, sunshine, rain, and comfort signals to highlight when Naganois at its most inviting, and when the weather is least cooperative.

Back to weather details
Best overall month

May

Overall score 40.7%

High
71.1°F
Low
47.5°F
Sun
6.2h
Rain
0.2in
Rain days
47.0%
Humidity
70.5%
Wind
6.6mph
Day length
14.1h
Sun percent
43.9%
Month to omit

January

Overall score 10.7%

High
37.4°F
Low
20.7°F
Sun
1.9h
Rain
0.4in
Rain days
81.0%
Humidity
83.0%
Wind
6.1mph
Day length
10.0h
Sun percent
19.1%

Overall travel weather

A simple average of the Heat Seeker, Mild Moderate, and Sun And Dry scores.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. May

Score 40.7%

#1
High
71.1°F
Low
47.5°F
Sun
6.2h
Rain
0.2in
Rain days
47.0%
Humidity
70.5%
Wind
6.6mph
Day length
14.1h
Sun percent
43.9%
Heat score
28.0%
Mild score
50.0%
Dry score
44.0%

2. June

Score 39.3%

#2
High
77.0°F
Low
55.2°F
Sun
5.2h
Rain
0.3in
Rain days
55.0%
Humidity
77.9%
Wind
5.9mph
Day length
14.6h
Sun percent
35.5%
Heat score
36.0%
Mild score
38.0%
Dry score
44.0%

3. October

Score 32.7%

#3
High
65.7°F
Low
46.0°F
Sun
3.7h
Rain
0.3in
Rain days
51.0%
Humidity
80.4%
Wind
5.9mph
Day length
11.3h
Sun percent
32.9%
Heat score
18.0%
Mild score
43.0%
Dry score
37.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. January

Score 10.7%

#1
High
37.4°F
Low
20.7°F
Sun
1.9h
Rain
0.4in
Rain days
81.0%
Humidity
83.0%
Wind
6.1mph
Day length
10.0h
Sun percent
19.1%
Heat score
5.0%
Mild score
0.0%
Dry score
27.0%

2. February

Score 14.3%

#2
High
40.3°F
Low
23.2°F
Sun
3.3h
Rain
0.3in
Rain days
66.0%
Humidity
79.6%
Wind
6.2mph
Day length
10.9h
Sun percent
30.4%
Heat score
8.0%
Mild score
3.0%
Dry score
32.0%

3. December

Score 14.3%

#3
High
42.8°F
Low
26.8°F
Sun
2.8h
Rain
0.4in
Rain days
69.0%
Humidity
80.5%
Wind
5.8mph
Day length
9.7h
Sun percent
28.9%
Heat score
8.0%
Mild score
3.0%
Dry score
32.0%

Heat Seeker

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. August

Score 50.0%

#1
High
86.2°F
Low
66.2°F
Sun
3.2h
Rain
0.3in
Rain days
73.0%
Humidity
80.3%
Wind
5.8mph
Day length
13.5h
Sun percent
23.7%
Heat high
67.0%
Heat low
100.0%
Heat sun
24.0%
Heat rain
0.0%

2. July

Score 46.0%

#2
High
84.0°F
Low
64.6°F
Sun
3.4h
Rain
0.4in
Rain days
75.0%
Humidity
82.0%
Wind
5.3mph
Day length
14.4h
Sun percent
23.6%
Heat high
59.0%
Heat low
100.0%
Heat sun
24.0%
Heat rain
0.0%

3. June

Score 36.0%

#3
High
77.0°F
Low
55.2°F
Sun
5.2h
Rain
0.3in
Rain days
55.0%
Humidity
77.9%
Wind
5.9mph
Day length
14.6h
Sun percent
35.5%
Heat high
33.0%
Heat low
100.0%
Heat sun
36.0%
Heat rain
0.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. January

Score 5.0%

#1
High
37.4°F
Low
20.7°F
Sun
1.9h
Rain
0.4in
Rain days
81.0%
Humidity
83.0%
Wind
6.1mph
Day length
10.0h
Sun percent
19.1%
Heat high
0.0%
Heat low
0.0%
Heat sun
19.0%
Heat rain
0.0%

2. February

Score 8.0%

#2
High
40.3°F
Low
23.2°F
Sun
3.3h
Rain
0.3in
Rain days
66.0%
Humidity
79.6%
Wind
6.2mph
Day length
10.9h
Sun percent
30.4%
Heat high
0.0%
Heat low
0.0%
Heat sun
30.0%
Heat rain
0.0%

3. December

Score 8.0%

#3
High
42.8°F
Low
26.8°F
Sun
2.8h
Rain
0.4in
Rain days
69.0%
Humidity
80.5%
Wind
5.8mph
Day length
9.7h
Sun percent
28.9%
Heat high
0.0%
Heat low
10.0%
Heat sun
29.0%
Heat rain
0.0%

Mild Moderate

Mild Moderate Score is designed for those who prefer comfortable, temperate weather conditions. It favors moderate temperatures and balanced weather patterns.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. May

Score 50.0%

#1
High
71.1°F
Low
47.5°F
Sun
6.2h
Rain
0.2in
Rain days
47.0%
Humidity
70.5%
Wind
6.6mph
Day length
14.1h
Sun percent
43.9%
Mild high
72.0%
Mild low
32.0%
Mild sun
48.0%
Mild rain
29.0%

2. October

Score 43.0%

#2
High
65.7°F
Low
46.0°F
Sun
3.7h
Rain
0.3in
Rain days
51.0%
Humidity
80.4%
Wind
5.9mph
Day length
11.3h
Sun percent
32.9%
Mild high
78.0%
Mild low
16.0%
Mild sun
26.0%
Mild rain
20.0%

3. June

Score 38.0%

#3
High
77.0°F
Low
55.2°F
Sun
5.2h
Rain
0.3in
Rain days
55.0%
Humidity
77.9%
Wind
5.9mph
Day length
14.6h
Sun percent
35.5%
Mild high
17.0%
Mild low
82.0%
Mild sun
31.0%
Mild rain
11.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. January

Score 0.0%

#1
High
37.4°F
Low
20.7°F
Sun
1.9h
Rain
0.4in
Rain days
81.0%
Humidity
83.0%
Wind
6.1mph
Day length
10.0h
Sun percent
19.1%
Mild high
0.0%
Mild low
0.0%
Mild sun
0.0%
Mild rain
0.0%

2. July

Score 1.0%

#2
High
84.0°F
Low
64.6°F
Sun
3.4h
Rain
0.4in
Rain days
75.0%
Humidity
82.0%
Wind
5.3mph
Day length
14.4h
Sun percent
23.6%
Mild high
0.0%
Mild low
0.0%
Mild sun
7.0%
Mild rain
0.0%

3. August

Score 1.0%

#3
High
86.2°F
Low
66.2°F
Sun
3.2h
Rain
0.3in
Rain days
73.0%
Humidity
80.3%
Wind
5.8mph
Day length
13.5h
Sun percent
23.7%
Mild high
0.0%
Mild low
0.0%
Mild sun
7.0%
Mild rain
0.0%

Sun And Dry

Sun And Dry Score maximizes sun exposure and minimizes all forms of precipitation. Temperature is secondary, preferring mild-to-warm conditions.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. May

Score 44.0%

#1
High
71.1°F
Low
47.5°F
Sun
6.2h
Rain
0.2in
Rain days
47.0%
Humidity
70.5%
Wind
6.6mph
Day length
14.1h
Sun percent
43.9%
Dry sun
44.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
45.0%

2. June

Score 44.0%

#2
High
77.0°F
Low
55.2°F
Sun
5.2h
Rain
0.3in
Rain days
55.0%
Humidity
77.9%
Wind
5.9mph
Day length
14.6h
Sun percent
35.5%
Dry sun
36.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
67.0%

3. August

Score 44.0%

#3
High
86.2°F
Low
66.2°F
Sun
3.2h
Rain
0.3in
Rain days
73.0%
Humidity
80.3%
Wind
5.8mph
Day length
13.5h
Sun percent
23.7%
Dry sun
24.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
100.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. January

Score 27.0%

#1
High
37.4°F
Low
20.7°F
Sun
1.9h
Rain
0.4in
Rain days
81.0%
Humidity
83.0%
Wind
6.1mph
Day length
10.0h
Sun percent
19.1%
Dry sun
19.0%
Dry days
0.0%
Dry rain
99.0%
Dry comfort
0.0%

2. February

Score 32.0%

#2
High
40.3°F
Low
23.2°F
Sun
3.3h
Rain
0.3in
Rain days
66.0%
Humidity
79.6%
Wind
6.2mph
Day length
10.9h
Sun percent
30.4%
Dry sun
30.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%

3. December

Score 32.0%

#3
High
42.8°F
Low
26.8°F
Sun
2.8h
Rain
0.4in
Rain days
69.0%
Humidity
80.5%
Wind
5.8mph
Day length
9.7h
Sun percent
28.9%
Dry sun
29.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%
Back to weather details