September 2021 Weather in Seattle — Graph
High & Low Weather Summary for September 2021
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 80 °F (Sep 9, 4:53 pm) | 100% (Sep 26, 6:59 pm) | 30.38 "Hg (Sep 26, 6:59 pm) |
| Low | 47 °F (Sep 1, 5:53 am) | 27% (Sep 3, 4:53 pm) | 29.48 "Hg (Sep 17, 9:53 pm) |
| Average | 62 °F | 73% | 30.02 "Hg |
| * Reported Sep 1 12:53 am — Sep 30 11:53 pm, Seattle. Weather by CustomWeather, © 2024 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Seattle Weather History for September 1, 2021
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:53 am Wed, Sep 1 |  | 55 °F | Clear. | No wind | ↑ | 69% | 30.02 "Hg | 10 mi |
| 1:53 am | | 54 °F | Clear. | No wind | ↑ | 77% | 30.03 "Hg | 10 mi |
| 2:53 am | | 54 °F | Clear. | No wind | ↑ | 80% | 30.03 "Hg | 10 mi |
| 3:53 am | | 52 °F | Clear. | No wind | ↑ | 86% | 30.03 "Hg | 10 mi |
| 4:53 am | | 52 °F | Clear. | No wind | ↑ | 86% | 30.04 "Hg | 10 mi |
| 5:53 am | | 47 °F | Clear. | 5 mph | ↑ | 97% | 30.05 "Hg | 10 mi |
| 6:53 am |  | 48 °F | Sunny. | No wind | ↑ | 93% | 30.05 "Hg | 10 mi |
| 7:53 am |  | 51 °F | Passing clouds. | 3 mph | ↑ | 89% | 30.06 "Hg | 10 mi |
| 8:53 am | | 56 °F | Passing clouds. | 5 mph | ↑ | 72% | 30.06 "Hg | 10 mi |
| 9:53 am | | 58 °F | Sunny. | 5 mph | ↑ | 70% | 30.06 "Hg | 10 mi |
| 10:53 am | | 61 °F | Passing clouds. | 5 mph | ↑ | 62% | 30.06 "Hg | 10 mi |
| 11:53 am | | 64 °F | Sunny. | 3 mph | ↑ | 56% | 30.05 "Hg | 10 mi |
| 12:53 pm | | 64 °F | Sunny. | 5 mph | ↑ | 54% | 30.03 "Hg | 10 mi |
| 1:53 pm | | 68 °F | Passing clouds. | 9 mph | ↑ | 49% | 30.01 "Hg | 10 mi |
| 2:53 pm | | 68 °F | Sunny. | 10 mph | ↑ | 47% | 30.01 "Hg | 10 mi |
| 3:53 pm | | 69 °F | Sunny. | 8 mph | ↑ | 45% | 29.99 "Hg | 10 mi |
| 4:53 pm | | 70 °F | Sunny. | 7 mph | ↑ | 44% | 29.98 "Hg | 10 mi |
| 5:53 pm | | 67 °F | Sunny. | 9 mph | ↑ | 47% | 29.98 "Hg | 10 mi |
| 6:53 pm | | 67 °F | Sunny. | 8 mph | ↑ | 47% | 29.98 "Hg | 10 mi |
| 7:53 pm | | 64 °F | Clear. | 5 mph | ↑ | 54% | 29.98 "Hg | 10 mi |
| 8:53 pm | | 64 °F | Clear. | 3 mph | ↑ | 56% | 30.00 "Hg | 10 mi |
| 9:53 pm | | 63 °F | Clear. | No wind | ↑ | 56% | 30.01 "Hg | 10 mi |
| 10:53 pm | | 61 °F | Clear. | 3 mph | ↑ | 60% | 30.01 "Hg | 10 mi |
| 11:53 pm | | 60 °F | Clear. | No wind | ↑ | 62% | 30.02 "Hg | 10 mi |
| Weather by CustomWeather, © 2024 | ||||||||