Cape Hatteras Airport weather in September: Cape Hatteras Airport, North Carolina: normal highs, lows, rain and records for September
Cape Hatteras Airport in September has a normal high of 83°F and a normal low of 71°F, a daily mean of 77°F, falling from 86°F on the 1st to 80°F by the 30th. Measurable precipitation falls on 11 days in a normal September, 7.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 22°C, 194 mm of precipitation in September.
- NOAA stationCape Hatteras Airport
- Station IDUSW00093729
- Location35.23°N 75.62°W
- Elevation11 ft (3 m)
- Jan 55° 41°
- Feb 57° 42°
- Mar 61° 46°
- Apr 69° 54°
- May 77° 63°
- Jun 84° 71°
- Jul 87° 75°
- Aug 87° 74°
- Sep 83° 71°
- Oct 75° 61°
- Nov 66° 52°
- Dec 59° 45°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Cape Hatteras Airport in September?
The normal high is 83°F and the normal low 71°F, for a daily mean of 76.9°F. September is 3.8°F cooler than August and 8.7°F warmer than October. September is the 4th warmest month of the year in Cape Hatteras Airport and the wettest. Across the month the normal high falls 6°F, from 86°F on September 1 to 80°F on September 30. From one year to the next September's mean temperature typically moves about 1.6°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 75°F and 79°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 86°F | 73°F | 37% | 26% |
| September 8 | 85°F | 73°F | 37% | 26% |
| September 15 | 83°F | 71°F | 37% | 26% |
| September 22 | 82°F | 70°F | 36% | 25% |
| September 30 | 80°F | 67°F | 35% | 23% |
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 | 86°F | 73°F | 37% | 26% | 13 h |
| September 2 | 86°F | 73°F | 37% | 26% | 13 h |
| September 3 | 86°F | 73°F | 37% | 26% | 12 h 50 min |
| September 4 | 85°F | 73°F | 37% | 26% | 12 h 50 min |
| September 5 | 85°F | 73°F | 37% | 26% | 12 h 50 min |
| September 6 | 85°F | 73°F | 37% | 26% | 12 h 50 min |
| September 7 | 85°F | 73°F | 37% | 26% | 12 h 40 min |
| September 8 | 85°F | 73°F | 37% | 26% | 12 h 40 min |
| September 9 | 85°F | 72°F | 37% | 26% | 12 h 40 min |
| September 10 | 84°F | 72°F | 37% | 26% | 12 h 40 min |
| September 11 | 84°F | 72°F | 37% | 26% | 12 h 40 min |
| September 12 | 84°F | 72°F | 37% | 26% | 12 h 30 min |
| September 13 | 84°F | 72°F | 37% | 26% | 12 h 30 min |
| September 14 | 84°F | 71°F | 37% | 26% | 12 h 30 min |
| September 15 | 83°F | 71°F | 37% | 26% | 12 h 30 min |
| September 16 | 83°F | 71°F | 37% | 25% | 12 h 20 min |
| September 17 | 83°F | 71°F | 37% | 25% | 12 h 20 min |
| September 18 | 83°F | 71°F | 37% | 25% | 12 h 20 min |
| September 19 | 82°F | 70°F | 36% | 25% | 12 h 20 min |
| September 20 | 82°F | 70°F | 36% | 25% | 12 h 20 min |
| September 21 | 82°F | 70°F | 36% | 25% | 12 h 10 min |
| September 22 | 82°F | 70°F | 36% | 25% | 12 h 10 min |
| September 23 | 81°F | 69°F | 36% | 25% | 12 h 10 min |
| September 24 | 81°F | 69°F | 36% | 25% | 12 h 10 min |
| September 25 | 81°F | 69°F | 36% | 24% | 12 h 10 min |
| September 26 | 81°F | 68°F | 35% | 24% | 12 h |
| September 27 | 81°F | 68°F | 35% | 24% | 12 h |
| September 28 | 80°F | 68°F | 35% | 24% | 12 h |
| September 29 | 80°F | 68°F | 35% | 23% | 12 h |
| September 30 | 80°F | 67°F | 35% | 23% | 11 h 50 min |
- Normal high
- 83°FSeptember average
- Normal low
- 71°FSeptember average
- Precipitation
- 7.63 inmonth total
- Days with precipitation
- 110.01 inch or more
- 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
- 20
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00093729; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Cape Hatteras Airport in September?
On a given September day the chance of 0.01 inch or more is 36% on average, highest around September 1 (37%). In all, 7.63 in falls on 11 days of a normal September, 2 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093729.
How humid and windy is Cape Hatteras Airport in September?
At 3 p.m. the normal temperature is 76°F with 68% relative humidity and a dew point of 65°F; at 6 a.m. it is 70°F with 84% humidity. The wind averages 8.3 mph, most often from the east-northeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 70°F | 65°F | 84% | 7.3 mph | – |
| 9 a.m. | 74°F | 65°F | 73% | 8.7 mph | – |
| noon | 76°F | 65°F | 68% | 9.5 mph | – |
| 3 p.m. | 76°F | 65°F | 68% | 9.5 mph | – |
| 6 p.m. | 72°F | 65°F | 77% | 8.3 mph | – |
| 9 p.m. | 71°F | 65°F | 81% | 8.1 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00093729. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Cape Hatteras Airport?
The warmest September temperature on this station's record (since 1957) is 93°F, on September 10, 2018; the coldest is 45°F, on September 30, 1970. The wettest September brought 20.00 in (1989).
The September mean against the 1991-2020 normal of 76.9°F: 2021 76.5°F (−0.4), 2022 76.1°F (−0.8), 2023 76.2°F (−0.7), 2024 75.7°F (−1.2), 2025 74.3°F (−2.7), 2026 77.5°F (+0.6). 1 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.5°F | −0.4°F | 3.38 in |
| 2022 | 76.1°F | −0.8°F | 7.75 in |
| 2023 | 76.2°F | −0.7°F | 4.52 in |
| 2024 | 75.7°F | −1.2°F | 10.25 in |
| 2025 | 74.3°F | −2.7°F | 3.78 in |
| 2026 | 77.5°F | +0.6°F | 0.32 in |
Source: records: ACIS, station USW00093729; recent months: ACIS, station USW00093729. Records and recent months use complete months only.
How does September in Cape Hatteras Airport compare across North Carolina?
Across the 131 places PlainClimate covers in North Carolina, September normal highs run from 63°F in Beech Mountain to 87°F in Southport; Cape Hatteras Airport's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Cape Hatteras Airport in August87°F by day, 74°F at night
- Cape Hatteras Airport in October75°F by day, 61°F at night
- Cape Hatteras Airport through the yearEvery month, frost dates, records and recent years
- North Carolina in SeptemberThe statewide normal and the warmest and coolest places
- Southport: North Carolina's warmest Septembernormal high 87°F