Okaya
Japan · 65K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Okaya
Japan
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 0% viability
0Mar: 1% viability
1Apr: 13% viability
13May: 37% viability
37Jun: 72% viability
72Jul: 65% viability
65Aug: 83% viability
83Sep: 80% viability
80Oct: 26% viability
26Nov: 0% viability
0Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Jun, Aug–SepChallenging: Jan–May, 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.
Okaya
Japan
Annual Average
FairWHO annual classification
12.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1313 µg/m³ — Fair
1414 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1111 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
Best months: Jul, Sep, DecWorst months: Feb–Mar, Jun
Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Okaya
Japan
Annual Summary
Sunshine
2,146hrs/yr
Clear sky
41%
Worst month
5.2hrs/day
Vit D months
8.1months
UV 8+ days
41days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
7.37.3 hrs — Good
8.38.3 hrs — Sunny
8.98.9 hrs — Sunny
9.59.5 hrs — Sunny
9.89.8 hrs — Sunny
9.09.0 hrs — Sunny
9.19.1 hrs — Sunny
9.39.3 hrs — Sunny
8.78.7 hrs — Sunny
7.67.6 hrs — Good
7.47.4 hrs — Good
7.07.0 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
7.37.3 hrs — Good
8.38.3 hrs — Sunny
8.98.9 hrs — Sunny
9.59.5 hrs — Sunny
9.89.8 hrs — Sunny
9.09.0 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
9.19.1 hrs — Sunny
9.39.3 hrs — Sunny
8.78.7 hrs — Sunny
7.67.6 hrs — Good
7.47.4 hrs — Good
7.07.0 hrs — Good
Best months: Apr–May, AugWorst months: Jan, Nov–Dec
GoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●