Chesapeake weather in September: Chesapeake, Virginia: normal highs, lows, rain and records for September
Chesapeake in September has a normal high of 85°F and a normal low of 65°F, a daily mean of 75°F, falling from 88°F on the 1st to 81°F by the 30th. The month brings 4.49 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 18°C, 114 mm of precipitation in September.
- NOAA stationFentress Naas
- Station IDUSW00013762
- Location36.70°N 76.14°W
- Elevation16 ft (5 m)
- Population254,997
- Jan 54° 34°
- Feb 57° 35°
- Mar 63° 41°
- Apr 74° 50°
- May 82° 59°
- Jun 89° 67°
- Jul 93° 73°
- Aug 90° 70°
- Sep 85° 65°
- Oct 76° 54°
- Nov 65° 44°
- Dec 58° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Chesapeake in September?
The normal high is 85°F and the normal low 65°F, for a daily mean of 74.8°F. September is 5.2°F cooler than August and 10.0°F warmer than October. September is the 4th warmest month of the year in Chesapeake and the 4th wettest. Across the month the normal high falls 7°F, from 88°F on September 1 to 81°F on September 30. From one year to the next September's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 73°F and 77°F.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 88°F | 69°F | – | – |
| September 8 | 87°F | 67°F | – | – |
| September 15 | 85°F | 66°F | – | – |
| September 22 | 83°F | 63°F | – | – |
| September 30 | 81°F | 60°F | – | – |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 88°F | 69°F | – | – | 13 h |
| September 2 | 88°F | 68°F | – | – | 13 h |
| September 3 | 87°F | 68°F | – | – | 13 h |
| September 4 | 87°F | 68°F | – | – | 12 h 50 min |
| September 5 | 87°F | 68°F | – | – | 12 h 50 min |
| September 6 | 87°F | 68°F | – | – | 12 h 50 min |
| September 7 | 87°F | 67°F | – | – | 12 h 50 min |
| September 8 | 87°F | 67°F | – | – | 12 h 40 min |
| September 9 | 86°F | 67°F | – | – | 12 h 40 min |
| September 10 | 86°F | 67°F | – | – | 12 h 40 min |
| September 11 | 86°F | 67°F | – | – | 12 h 40 min |
| September 12 | 86°F | 66°F | – | – | 12 h 40 min |
| September 13 | 85°F | 66°F | – | – | 12 h 30 min |
| September 14 | 85°F | 66°F | – | – | 12 h 30 min |
| September 15 | 85°F | 66°F | – | – | 12 h 30 min |
| September 16 | 85°F | 65°F | – | – | 12 h 30 min |
| September 17 | 85°F | 65°F | – | – | 12 h 20 min |
| September 18 | 84°F | 65°F | – | – | 12 h 20 min |
| September 19 | 84°F | 64°F | – | – | 12 h 20 min |
| September 20 | 84°F | 64°F | – | – | 12 h 20 min |
| September 21 | 84°F | 64°F | – | – | 12 h 10 min |
| September 22 | 83°F | 63°F | – | – | 12 h 10 min |
| September 23 | 83°F | 63°F | – | – | 12 h 10 min |
| September 24 | 83°F | 63°F | – | – | 12 h 10 min |
| September 25 | 83°F | 62°F | – | – | 12 h 10 min |
| September 26 | 82°F | 62°F | – | – | 12 h |
| September 27 | 82°F | 61°F | – | – | 12 h |
| September 28 | 82°F | 61°F | – | – | 12 h |
| September 29 | 81°F | 61°F | – | – | 12 h |
| September 30 | 81°F | 60°F | – | – | 11 h 50 min |
- Normal high
- 85°FSeptember average
- Normal low
- 65°FSeptember average
- Precipitation
- 4.49 inmonth total
- Days at 90°F or more
- 7
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 22
- Sunshine
- 76%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013762; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Chesapeake in September?
In a normal September in Chesapeake, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013762.
What are the records for September in Chesapeake?
The September mean against the 1991-2020 normal of 74.8°F: 2021 73.0°F (−1.8), 2022 73.7°F (−1.1), 2023 74.6°F (−0.2), 2025 71.4°F (−3.4), 2026 75.7°F (+0.9). 1 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 73.0°F | −1.8°F | 2.03 in |
| 2022 | 73.7°F | −1.1°F | 6.23 in |
| 2023 | 74.6°F | −0.2°F | 5.28 in |
| 2025 | 71.4°F | −3.4°F | – |
| 2026 | 75.7°F | +0.9°F | – |
Source: recent months: ACIS, station USW00013762. Records and recent months use complete months only.
How does September in Chesapeake compare across Virginia?
Across the 81 places PlainClimate covers in Virginia, September normal highs run from 73°F in Floyd to 85°F in Chesapeake; Chesapeake's is 85°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.