Cayenne
French Guiana · 76K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Cayenne
French Guiana
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 44% viability
44Feb: 50% viability
50Mar: 65% viability
65Apr: 48% viability
48May: 29% viability
29Jun: 50% viability
50Jul: 63% viability
63Aug: 84% viability
84Sep: 97% viability
97Oct: 92% viability
92Nov: 66% viability
66Dec: 56% viability
56Humid
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Aug–OctChallenging: May
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Cayenne
French Guiana
Annual Average
FairWHO annual classification
11.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1010 µg/m³ — Fair
7.87.8 µg/m³ — Good
8.38.3 µg/m³ — Good
7.47.4 µg/m³ — Good
8.28.2 µg/m³ — Good
1111 µg/m³ — Fair
1414 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1414 µg/m³ — Fair
1212 µg/m³ — Fair
1111 µg/m³ — Fair
1010 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
7.87.8 µg/m³ — Good
8.38.3 µg/m³ — Good
7.47.4 µg/m³ — Good
8.28.2 µg/m³ — Good
1111 µg/m³ — Fair
1414 µg/m³ — Fair
Best months: Jul, Sep–OctWorst months: Jan, Mar, Dec
Good5–10 µg/m³Fair10–15 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.
Cayenne
French Guiana
Annual Summary
Sunshine
2,363hrs/yr
Clear sky
36%
Worst month
4.2hrs/day
Vit D months
11.6months
UV 8+ days
204days/yr
UV 11+ days
21days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
8.68.6 hrs — Sunny
8.08.0 hrs — Good
8.88.8 hrs — Sunny
8.68.6 hrs — Sunny
8.08.0 hrs — Good
8.68.6 hrs — Sunny
8.88.8 hrs — Sunny
9.79.7 hrs — Sunny
9.89.8 hrs — Sunny
9.79.7 hrs — Sunny
8.98.9 hrs — Sunny
9.09.0 hrs — Sunny
Jan
Feb
Mar
Apr
May
Jun
8.68.6 hrs — Sunny
8.08.0 hrs — Good
8.88.8 hrs — Sunny
8.68.6 hrs — Sunny
8.08.0 hrs — Good
8.68.6 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
8.88.8 hrs — Sunny
9.79.7 hrs — Sunny
9.89.8 hrs — Sunny
9.79.7 hrs — Sunny
8.98.9 hrs — Sunny
9.09.0 hrs — Sunny
Best months: Aug–OctWorst months: Feb, Apr–May
GoodSunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●