Grenchen
Switzerland · 16K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Grenchen
Switzerland
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 1% viability
1Mar: 11% viability
11Apr: 43% viability
43May: 54% viability
54Jun: 68% viability
68Jul: 72% viability
72Aug: 71% viability
71Sep: 62% viability
62Oct: 38% viability
38Nov: 1% viability
1Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Jul, AugChallenging: Jan–Mar, 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.
Grenchen
Switzerland
Annual Average
GoodWHO annual classification
6.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
8.98.9 µg/m³ — Good
5.85.8 µg/m³ — Good
8.18.1 µg/m³ — Good
7.67.6 µg/m³ — Good
5.65.6 µg/m³ — Good
6.36.3 µg/m³ — Good
5.15.1 µg/m³ — Good
5.85.8 µg/m³ — Good
6.36.3 µg/m³ — Good
5.75.7 µg/m³ — Good
6.06.0 µg/m³ — Good
7.27.2 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
8.98.9 µg/m³ — Good
5.85.8 µg/m³ — Good
8.18.1 µg/m³ — Good
7.67.6 µg/m³ — Good
5.65.6 µg/m³ — Good
6.36.3 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
5.15.1 µg/m³ — Good
5.85.8 µg/m³ — Good
6.36.3 µg/m³ — Good
5.75.7 µg/m³ — Good
6.06.0 µg/m³ — Good
7.27.2 µg/m³ — Good
Best months: May, Jul, OctWorst months: Jan, Mar–Apr
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Grenchen
Switzerland
Annual Summary
Sunshine
1,938hrs/yr
Clear sky
38%
Worst month
1.2hrs/day
Vit D months
5.1months
UV 8+ days
3days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
4.04.0 hrs — Low
6.96.9 hrs — Good
8.38.3 hrs — Sunny
1010 hrs — Very Sunny
9.79.7 hrs — Sunny
1010 hrs — Very Sunny
1111 hrs — Very Sunny
1111 hrs — Very Sunny
8.88.8 hrs — Sunny
6.86.8 hrs — Good
5.35.3 hrs — Moderate
4.04.0 hrs — Low
Jan
Feb
Mar
Apr
May
Jun
4.04.0 hrs — Low
6.96.9 hrs — Good
8.38.3 hrs — Sunny
1010 hrs — Very Sunny
9.79.7 hrs — Sunny
1010 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1111 hrs — Very Sunny
1111 hrs — Very Sunny
8.88.8 hrs — Sunny
6.86.8 hrs — Good
5.35.3 hrs — Moderate
4.04.0 hrs — Low
Best months: Apr, Jul–AugWorst months: Jan, Nov–Dec
LowModerateGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●