Napa
United States · 77K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Napa
United States
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 2% viability
2Feb: 10% viability
10Mar: 25% viability
25Apr: 53% viability
53May: 78% viability
78Jun: 91% viability
91Jul: 95% viability
95Aug: 98% viability
98Sep: 88% viability
88Oct: 68% viability
68Nov: 11% viability
11Dec: 2% viability
2Cold
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.
Napa
United States
Annual Average
GoodWHO annual classification
6.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.07.0 µg/m³ — Good
5.75.7 µg/m³ — Good
5.65.6 µg/m³ — Good
5.55.5 µg/m³ — Good
5.45.4 µg/m³ — Good
5.55.5 µg/m³ — Good
5.95.9 µg/m³ — Good
7.47.4 µg/m³ — Good
9.09.0 µg/m³ — Good
5.85.8 µg/m³ — Good
6.36.3 µg/m³ — Good
8.18.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.07.0 µg/m³ — Good
5.75.7 µg/m³ — Good
5.65.6 µg/m³ — Good
5.55.5 µg/m³ — Good
5.45.4 µg/m³ — Good
5.55.5 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
5.95.9 µg/m³ — Good
7.47.4 µg/m³ — Good
9.09.0 µg/m³ — Good
5.85.8 µg/m³ — Good
6.36.3 µg/m³ — Good
8.18.1 µg/m³ — Good
Best months: Apr–JunWorst months: Aug–Sep, Dec
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.
Napa
United States
Annual Summary
Sunshine
3,198hrs/yr
Clear sky
63%
Worst month
3.9hrs/day
Vit D months
8.2months
UV 8+ days
97days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
7.07.0 hrs — Good
8.88.8 hrs — Sunny
9.99.9 hrs — Sunny
1111 hrs — Very Sunny
1313 hrs — Very Sunny
1313 hrs — Very Sunny
1313 hrs — Very Sunny
1212 hrs — Very Sunny
1111 hrs — Very Sunny
9.69.6 hrs — Sunny
7.97.9 hrs — Good
6.06.0 hrs — Moderate
Jan
Feb
Mar
Apr
May
Jun
7.07.0 hrs — Good
8.88.8 hrs — Sunny
9.99.9 hrs — Sunny
1111 hrs — Very Sunny
1313 hrs — Very Sunny
1313 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1313 hrs — Very Sunny
1212 hrs — Very Sunny
1111 hrs — Very Sunny
9.69.6 hrs — Sunny
7.97.9 hrs — Good
6.06.0 hrs — Moderate
Best months: May–JulWorst months: Jan, Nov–Dec
ModerateGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●