JP flagNagano

Japan · 264K

Lifestyle Calendar

When this city supports your activity — and when it fights you.

Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan: 0% viability
0
Feb: 0% viability
0
Mar: 1% viability
1
Apr: 15% viability
15
May: 45% viability
45
Jun: 72% viability
72
Jul: 55% viability
55
Aug: 76% viability
76
Sep: 71% viability
71
Oct: 25% viability
25
Nov: 1% viability
1
Dec: 0% viability
0
Friction Breakdown
Best months: Jun, Aug–SepChallenging: Jan–Apr, Oct–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●

Air Quality Profile

Annual and monthly PM2.5 levels against WHO guidelines.

Annual Average
FairWHO annual classification
12.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
1010 µg/m³ — Fair
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1313 µg/m³ — Fair
1212 µg/m³ — Fair
1010 µg/m³ — Fair
1313 µg/m³ — Fair
1212 µg/m³ — Fair
9.49.4 µg/m³ — Good
Best months: Jan, Sep, DecWorst months: Mar, May–Jun
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●

Sun & UV Profile

Monthly sunshine, sky clarity, and UV exposure patterns.

Annual Summary
Sunshine
1,934hrs/yr
Clear sky
37%
Worst month
3.0hrs/day
Vit D months
7.3months
UV 8+ days
31days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
6.06.0 hrsModerate
7.27.2 hrsGood
8.28.2 hrsSunny
9.49.4 hrsSunny
1010 hrsSunny
9.79.7 hrsSunny
Jul
Aug
Sep
Oct
Nov
Dec
9.09.0 hrsSunny
8.98.9 hrsSunny
7.97.9 hrsGood
7.07.0 hrsGood
6.86.8 hrsGood
6.36.3 hrsGood
Best months: Apr–JunWorst months: Jan, Nov–Dec
ModerateGoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●