Ciyun
China · 19K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Ciyun
China
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 5% viability
5Feb: 19% viability
19Mar: 64% viability
64Apr: 81% viability
81May: 85% viability
85Jun: 80% viability
80Jul: 63% viability
63Aug: 57% viability
57Sep: 77% viability
77Oct: 74% viability
74Nov: 50% viability
50Dec: 5% viability
5Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Apr–Jun, Sep–OctChallenging: Jan–Feb, Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Ciyun
China
Annual Average
PoorWHO annual classification
32.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
5555 µg/m³ — Very Unhealthy
4848 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
3131 µg/m³ — Poor
2424 µg/m³ — Moderate
2222 µg/m³ — Moderate
1616 µg/m³ — Moderate
1616 µg/m³ — Moderate
1919 µg/m³ — Moderate
2828 µg/m³ — Poor
3636 µg/m³ — Unhealthy
5959 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
5555 µg/m³ — Very Unhealthy
4848 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
3131 µg/m³ — Poor
2424 µg/m³ — Moderate
2222 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1616 µg/m³ — Moderate
1616 µg/m³ — Moderate
1919 µg/m³ — Moderate
2828 µg/m³ — Poor
3636 µg/m³ — Unhealthy
5959 µg/m³ — Very Unhealthy
Best months: Jul–SepWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Ciyun
China
Annual Summary
Sunshine
1,367hrs/yr
Clear sky
26%
Worst month
0.8hrs/day
Vit D months
6.5months
UV 8+ days
46days/yr
UV 11+ days
1days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
2.02.0 hrs — Dark
3.03.0 hrs — Low
5.05.0 hrs — Moderate
5.35.3 hrs — Moderate
6.76.7 hrs — Good
6.36.3 hrs — Good
9.39.3 hrs — Sunny
9.99.9 hrs — Sunny
9.09.0 hrs — Sunny
1.01.0 hrs — Dark
2.82.8 hrs — Low
2.02.0 hrs — Dark
Jan
Feb
Mar
Apr
May
Jun
2.02.0 hrs — Dark
3.03.0 hrs — Low
5.05.0 hrs — Moderate
5.35.3 hrs — Moderate
6.76.7 hrs — Good
6.36.3 hrs — Good
Jul
Aug
Sep
Oct
Nov
Dec
9.39.3 hrs — Sunny
9.99.9 hrs — Sunny
9.09.0 hrs — Sunny
1.01.0 hrs — Dark
2.82.8 hrs — Low
2.02.0 hrs — Dark
Best months: Jul–SepWorst months: Jan, Oct, Dec
DarkLowModerateGoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●