Isahaya
Japan · 72K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Isahaya
Japan
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 1% viability
1Feb: 4% viability
4Mar: 22% viability
22Apr: 49% viability
49May: 71% viability
71Jun: 71% viability
71Jul: 69% viability
69Aug: 68% viability
68Sep: 75% viability
75Oct: 70% viability
70Nov: 32% viability
32Dec: 2% viability
2Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: May–Jun, Sep–OctChallenging: Jan–Mar, Nov–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Isahaya
Japan
Annual Average
FairWHO annual classification
14.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1515 µg/m³ — Moderate
1616 µg/m³ — Moderate
Best months: Mar, Jul–AugWorst months: May–Jun, Dec
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Isahaya
Japan
Annual Summary
Sunshine
1,998hrs/yr
Clear sky
43%
Worst month
3.1hrs/day
Vit D months
8.2months
UV 8+ days
57days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
6.06.0 hrs — Moderate
7.67.6 hrs — Good
8.98.9 hrs — Sunny
9.59.5 hrs — Sunny
9.79.7 hrs — Sunny
7.07.0 hrs — Good
9.69.6 hrs — Sunny
9.99.9 hrs — Sunny
9.09.0 hrs — Sunny
8.98.9 hrs — Sunny
7.67.6 hrs — Good
6.36.3 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
6.06.0 hrs — Moderate
7.67.6 hrs — Good
8.98.9 hrs — Sunny
9.59.5 hrs — Sunny
9.79.7 hrs — Sunny
7.07.0 hrs — Good
Jul
Aug
Sep
Oct
Nov
Dec
9.69.6 hrs — Sunny
9.99.9 hrs — Sunny
9.09.0 hrs — Sunny
8.98.9 hrs — Sunny
7.67.6 hrs — Good
6.36.3 hrs — Good
Best months: May, Jul–AugWorst months: Jan, Jun, Dec
ModerateGoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●