Karatsu
Japan · 65K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Karatsu
Japan
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 2% viability
2Feb: 4% viability
4Mar: 18% viability
18Apr: 42% viability
42May: 74% viability
74Jun: 80% viability
80Jul: 73% viability
73Aug: 78% viability
78Sep: 80% viability
80Oct: 67% viability
67Nov: 25% viability
25Dec: 1% viability
1Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: May–SepChallenging: 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.
Karatsu
Japan
Annual Average
ModerateWHO annual classification
15.2µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1515 µg/m³ — Moderate
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1616 µg/m³ — Moderate
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1515 µg/m³ — Moderate
1515 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1616 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1313 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Fair
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
Best months: Jul–Aug, OctWorst months: Apr–May, 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.
Karatsu
Japan
Annual Summary
Sunshine
1,957hrs/yr
Clear sky
42%
Worst month
3.1hrs/day
Vit D months
8.0months
UV 8+ days
56days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
6.36.3 hrs — Good
7.37.3 hrs — Good
9.09.0 hrs — Sunny
9.39.3 hrs — Sunny
1010 hrs — Sunny
8.98.9 hrs — Sunny
9.09.0 hrs — Sunny
1010 hrs — Sunny
8.68.6 hrs — Sunny
8.88.8 hrs — Sunny
7.27.2 hrs — Good
5.95.9 hrs — Moderate
Jan
Feb
Mar
Apr
May
Jun
6.36.3 hrs — Good
7.37.3 hrs — Good
9.09.0 hrs — Sunny
9.39.3 hrs — Sunny
1010 hrs — Sunny
8.98.9 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
9.09.0 hrs — Sunny
1010 hrs — Sunny
8.68.6 hrs — Sunny
8.88.8 hrs — Sunny
7.27.2 hrs — Good
5.95.9 hrs — Moderate
Best months: Apr–May, AugWorst months: Jan, Nov–Dec
ModerateGoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●