Wilmington weather in August: Wilmington, North Carolina: normal highs, lows, rain and records for August
Wilmington in August has a normal high of 88°F and a normal low of 72°F, a daily mean of 80°F, falling from 90°F on the 1st to 87°F by the 31st. Measurable precipitation falls on 14 days in a normal August, 8.16 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 22°C, 207 mm of precipitation in August.
- NOAA stationWilmington Int'l Airport
- Station IDUSW00013748
- Location34.27°N 77.90°W
- Elevation33 ft (10 m)
- From the center4 miles
- Population125,284
- Jan 57° 36°
- Feb 60° 38°
- Mar 67° 44°
- Apr 75° 53°
- May 81° 61°
- Jun 87° 69°
- Jul 90° 73°
- Aug 88° 72°
- Sep 84° 67°
- Oct 76° 56°
- Nov 67° 45°
- Dec 60° 39°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Wilmington in August?
The normal high is 88°F and the normal low 72°F, for a daily mean of 80.0°F. August is 1.5°F cooler than July and 4.7°F warmer than September. August is the 2nd warmest month of the year in Wilmington and the 2nd wettest. Across the month the normal high falls 3°F, from 90°F on August 1 to 87°F on August 31. From one year to the next August's mean temperature typically moves about 1.4°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 79°F and 81°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 46%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 90°F | 73°F | 46% | 32% |
| August 8 | 89°F | 72°F | 45% | 32% |
| August 15 | 89°F | 72°F | 44% | 31% |
| August 22 | 88°F | 71°F | 42% | 29% |
| August 31 | 87°F | 70°F | 39% | 26% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 90°F | 73°F | 46% | 32% | 13 h 50 min |
| August 2 | 89°F | 73°F | 46% | 32% | 13 h 50 min |
| August 3 | 89°F | 73°F | 46% | 32% | 13 h 50 min |
| August 4 | 89°F | 73°F | 46% | 32% | 13 h 50 min |
| August 5 | 89°F | 73°F | 46% | 32% | 13 h 50 min |
| August 6 | 89°F | 73°F | 46% | 32% | 13 h 40 min |
| August 7 | 89°F | 73°F | 45% | 32% | 13 h 40 min |
| August 8 | 89°F | 72°F | 45% | 32% | 13 h 40 min |
| August 9 | 89°F | 72°F | 45% | 32% | 13 h 40 min |
| August 10 | 89°F | 72°F | 45% | 32% | 13 h 40 min |
| August 11 | 89°F | 72°F | 45% | 32% | 13 h 40 min |
| August 12 | 89°F | 72°F | 45% | 31% | 13 h 30 min |
| August 13 | 89°F | 72°F | 45% | 31% | 13 h 30 min |
| August 14 | 89°F | 72°F | 44% | 31% | 13 h 30 min |
| August 15 | 89°F | 72°F | 44% | 31% | 13 h 30 min |
| August 16 | 88°F | 72°F | 44% | 31% | 13 h 30 min |
| August 17 | 88°F | 72°F | 44% | 31% | 13 h 20 min |
| August 18 | 88°F | 72°F | 44% | 30% | 13 h 20 min |
| August 19 | 88°F | 72°F | 43% | 30% | 13 h 20 min |
| August 20 | 88°F | 72°F | 43% | 30% | 13 h 20 min |
| August 21 | 88°F | 71°F | 43% | 30% | 13 h 20 min |
| August 22 | 88°F | 71°F | 42% | 29% | 13 h 20 min |
| August 23 | 88°F | 71°F | 42% | 29% | 13 h 10 min |
| August 24 | 88°F | 71°F | 42% | 29% | 13 h 10 min |
| August 25 | 88°F | 71°F | 41% | 28% | 13 h 10 min |
| August 26 | 87°F | 71°F | 41% | 28% | 13 h 10 min |
| August 27 | 87°F | 71°F | 41% | 28% | 13 h 10 min |
| August 28 | 87°F | 71°F | 40% | 27% | 13 h |
| August 29 | 87°F | 71°F | 40% | 27% | 13 h |
| August 30 | 87°F | 70°F | 39% | 27% | 13 h |
| August 31 | 87°F | 70°F | 39% | 26% | 13 h |
- Normal high
- 88°FAugust average
- Normal low
- 72°FAugust average
- Precipitation
- 8.16 inmonth total
- Days with precipitation
- 140.01 inch or more
- Days at 90°F or more
- 12
- Daylight
- 13 h 50 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013748; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Wilmington in August?
On a given August day the chance of 0.01 inch or more is 43% on average, highest around August 3 (46%). In all, 8.16 in falls on 14 days of a normal August, 3 of them with an inch or more.
In a normal August in Wilmington, 12 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013748.
What are the records for August in Wilmington?
The warmest August temperature on Wilmington's official record (since 1874) is 103°F, on August 1, 1999; the coldest is 55°F, on August 30, 1982. The wettest August brought 18.83 in (2006).
The August mean against the 1991-2020 normal of 80.0°F: 2021 81.8°F (+1.8), 2022 81.2°F (+1.2), 2023 81.7°F (+1.7), 2024 79.8°F (−0.2), 2025 77.8°F (−2.2), 2026 82.1°F (+2.1). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 81.8°F | +1.8°F | 10.07 in |
| 2022 | 81.2°F | +1.2°F | 6.71 in |
| 2023 | 81.7°F | +1.7°F | 9.80 in |
| 2024 | 79.8°F | −0.2°F | 14.66 in |
| 2025 | 77.8°F | −2.2°F | 6.59 in |
| 2026 | 82.1°F | +2.1°F | 15.01 in |
Source: records: ACIS, NWS threaded record ILMthr; recent months: ACIS, station USW00013748. Records and recent months use complete months only.
How does August in Wilmington compare across North Carolina?
Across the 131 places PlainClimate covers in North Carolina, August normal highs run from 68°F in Beech Mountain to 90°F in Southport; Wilmington's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Wilmington in July90°F by day, 73°F at night
- Wilmington in September84°F by day, 67°F at night
- Wilmington through the yearEvery month, frost dates, records and recent years
- North Carolina in AugustThe statewide normal and the warmest and coolest places
- Southport: North Carolina's warmest Augustnormal high 90°F