The inland setting means local environmental conditions are shaped more by urban density than coastal influences.
In line with average conditions across San Francisco
24-Hour AQI Trend
Pollutant Breakdown
Peer Comparison
In line with average conditions across San Francisco
Why Western Addition, San Francisco's Air Is What It Is
Western Addition, San Francisco sits in an inland urban setting where local environmental conditions are shaped primarily by density and development patterns. Temperature swings between day and night can be more pronounced than in coastal areas.
Historical Context
Current AQI of 31 reflects recent monitoring data. Local conditions can shift with weather patterns, traffic volume, and seasonal factors.
24-Hour Hourly Forecast
Best window: 05:00 (AQI 31) · Peak AQI: 41 at 21:00
| Time | AQI | Temp (°F) | Humidity | Wind (mph) | PM2.5 | PM10 |
|---|---|---|---|---|---|---|
| 00:00 | 36 | 128.8 | 67% | 5.3 | 9.5 | 14.8 |
| 01:00 | 35 | 127.9 | 68% | 1.8 | 8.8 | 13.5 |
| 02:00 | 34 | 127.9 | 64% | 2.7 | 8.1 | 12.5 |
| 03:00 | 33 | 126.3 | 63% | 2.9 | 7.8 | 11.9 |
| 04:00 | 32 | 124.0 | 67% | 4.3 | 7.8 | 12.0 |
| 05:00 | 31 | 122.0 | 74% | 3.2 | 7.1 | 10.9 |
| 06:00 | 31 | 122.5 | 70% | 2.1 | 6.8 | 10.2 |
| 07:00 | 31 | 125.1 | 74% | 0.7 | 6.3 | 9.5 |
| 08:00 | 31 | 132.8 | 76% | 0.9 | 6.1 | 9.4 |
| 09:00 | 31 | 136.6 | 65% | 0.6 | 6.2 | 9.5 |
| 10:00 | 31 | 141.8 | 57% | 2.5 | 6.7 | 10.2 |
| 11:00 | 31 | 148.5 | 47% | 4.5 | 6.7 | 10.1 |
| 12:00 | 32 | 151.2 | 46% | 6.5 | 6.6 | 10.1 |
| 13:00 | 32 | 156.0 | 43% | 6.4 | 6.7 | 10.3 |
| 14:00 | 33 | 157.5 | 42% | 7.5 | 6.7 | 10.4 |
| 15:00 | 34 | 159.3 | 40% | 7.0 | 6.5 | 10.0 |
| 16:00 | 36 | 160.0 | 37% | 6.8 | 5.8 | 8.9 |
| 17:00 | 37 | 164.3 | 18% | 9.2 | 5.1 | 7.7 |
| 18:00 | 38 | 163.2 | 19% | 11.1 | 5.7 | 8.6 |
| 19:00 | 39 | 157.6 | 23% | 10.2 | 6.0 | 8.8 |
| 20:00 | 40 | 153.1 | 24% | 9.6 | 6.5 | 9.7 |
| 21:00 | 41 | 149.5 | 26% | 10.3 | 5.9 | 8.6 |
| 22:00 | 41 | 146.1 | 28% | 9.4 | 5.5 | 7.8 |
| 23:00 | 41 | 143.8 | 30% | 10.4 | 5.1 | 7.1 |
Air quality is forecast to be good for most of the day. Great time for outdoor activities!
For health-conscious residents of Western Addition, San Francisco, the hourly forecast is a valuable planning tool. The best time for outdoor activities is 05:00 (AQI 31) (AQI as low as 31 at 05:00). The least favorable period is 21:00 (AQI 41) with AQI reaching 41 at 21:00. A practical observation: the forecast for Western Addition, San Francisco is generated using data from multiple sources. Air quality is forecast to be good for most of the day. Great time for outdoor activities! Understanding that forecasts carry inherent uncertainty is important for making informed decisions.