Simi Valley
United States · 106K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Simi Valley
United States
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 3% viability
3Feb: 11% viability
11Mar: 34% viability
34Apr: 66% viability
66May: 89% viability
89Jun: 98% viability
98Jul: 99% viability
99Aug: 97% viability
97Sep: 94% viability
94Oct: 86% viability
86Nov: 23% viability
23Dec: 3% viability
3Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: May–OctChallenging: 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.
Simi Valley
United States
Annual Average
GoodWHO annual classification
8.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.47.4 µg/m³ — Good
6.56.5 µg/m³ — Good
6.76.7 µg/m³ — Good
8.38.3 µg/m³ — Good
8.88.8 µg/m³ — Good
8.88.8 µg/m³ — Good
9.89.8 µg/m³ — Good
1010 µg/m³ — Fair
1010 µg/m³ — Fair
8.78.7 µg/m³ — Good
9.59.5 µg/m³ — Good
7.57.5 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.47.4 µg/m³ — Good
6.56.5 µg/m³ — Good
6.76.7 µg/m³ — Good
8.38.3 µg/m³ — Good
8.88.8 µg/m³ — Good
8.88.8 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
9.89.8 µg/m³ — Good
1010 µg/m³ — Fair
1010 µg/m³ — Fair
8.78.7 µg/m³ — Good
9.59.5 µg/m³ — Good
7.57.5 µg/m³ — Good
Best months: Jan–MarWorst months: Jul–Sep
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Simi Valley
United States
Annual Summary
Sunshine
3,482hrs/yr
Clear sky
70%
Worst month
6.9hrs/day
Vit D months
9.8months
UV 8+ days
135days/yr
UV 11+ days
10days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
8.68.6 hrs — Sunny
9.59.5 hrs — Sunny
9.79.7 hrs — Sunny
1111 hrs — Very Sunny
1212 hrs — Very Sunny
1414 hrs — Very Sunny
1313 hrs — Very Sunny
1212 hrs — Very Sunny
1010 hrs — Very Sunny
1111 hrs — Very Sunny
8.68.6 hrs — Sunny
7.97.9 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
8.68.6 hrs — Sunny
9.59.5 hrs — Sunny
9.79.7 hrs — Sunny
1111 hrs — Very Sunny
1212 hrs — Very Sunny
1414 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1313 hrs — Very Sunny
1212 hrs — Very Sunny
1010 hrs — Very Sunny
1111 hrs — Very Sunny
8.68.6 hrs — Sunny
7.97.9 hrs — Good
Best months: May–JulWorst months: Jan, Nov–Dec
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●