Charleston weather in October: Charleston, South Carolina: normal highs, lows, rain and records for October
Charleston in October has a normal high of 78°F and a normal low of 58°F, a daily mean of 68°F, falling from 82°F on the 1st to 74°F by the 31st. Measurable precipitation falls on 7 days in a normal October, 4.33 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 14°C, 110 mm of precipitation in October.
- NOAA stationCharleston International Airport
- Station IDUSW00013880
- Location32.90°N 80.04°W
- Elevation40 ft (12 m)
- From the center6 miles
- Population157,665
- Jan 60° 39°
- Feb 64° 42°
- Mar 70° 47°
- Apr 77° 55°
- May 84° 63°
- Jun 89° 70°
- Jul 91° 74°
- Aug 90° 73°
- Sep 85° 68°
- Oct 78° 58°
- Nov 69° 47°
- Dec 63° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Charleston in October?
The normal high is 78°F and the normal low 58°F, for a daily mean of 67.8°F. October is 9.1°F cooler than September and 9.5°F warmer than November. October is the 6th warmest month of the year in Charleston and the 5th wettest. Across the month the normal high falls 8°F, from 82°F on October 1 to 74°F on October 31. From one year to the next October's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 65°F and 70°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 29%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 82°F | 64°F | 29% | 19% |
| October 8 | 80°F | 61°F | 27% | 18% |
| October 15 | 78°F | 58°F | 25% | 16% |
| October 22 | 76°F | 55°F | 23% | 14% |
| October 31 | 74°F | 52°F | 22% | 13% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 82°F | 64°F | 29% | 19% | 11 h 50 min |
| October 2 | 82°F | 63°F | 29% | 19% | 11 h 50 min |
| October 3 | 82°F | 63°F | 29% | 19% | 11 h 50 min |
| October 4 | 81°F | 63°F | 28% | 18% | 11 h 50 min |
| October 5 | 81°F | 62°F | 28% | 18% | 11 h 50 min |
| October 6 | 81°F | 62°F | 28% | 18% | 11 h 40 min |
| October 7 | 80°F | 61°F | 28% | 18% | 11 h 40 min |
| October 8 | 80°F | 61°F | 27% | 18% | 11 h 40 min |
| October 9 | 80°F | 61°F | 27% | 18% | 11 h 40 min |
| October 10 | 80°F | 60°F | 27% | 17% | 11 h 40 min |
| October 11 | 79°F | 60°F | 26% | 17% | 11 h 30 min |
| October 12 | 79°F | 59°F | 26% | 17% | 11 h 30 min |
| October 13 | 79°F | 59°F | 26% | 16% | 11 h 30 min |
| October 14 | 79°F | 59°F | 25% | 16% | 11 h 30 min |
| October 15 | 78°F | 58°F | 25% | 16% | 11 h 30 min |
| October 16 | 78°F | 58°F | 25% | 16% | 11 h 20 min |
| October 17 | 78°F | 57°F | 24% | 15% | 11 h 20 min |
| October 18 | 77°F | 57°F | 24% | 15% | 11 h 20 min |
| October 19 | 77°F | 56°F | 24% | 15% | 11 h 20 min |
| October 20 | 77°F | 56°F | 24% | 15% | 11 h 20 min |
| October 21 | 77°F | 56°F | 23% | 15% | 11 h 10 min |
| October 22 | 76°F | 55°F | 23% | 14% | 11 h 10 min |
| October 23 | 76°F | 55°F | 23% | 14% | 11 h 10 min |
| October 24 | 76°F | 54°F | 23% | 14% | 11 h 10 min |
| October 25 | 75°F | 54°F | 23% | 14% | 11 h 10 min |
| October 26 | 75°F | 54°F | 22% | 14% | 11 h |
| October 27 | 75°F | 53°F | 22% | 14% | 11 h |
| October 28 | 75°F | 53°F | 22% | 14% | 11 h |
| October 29 | 74°F | 52°F | 22% | 14% | 11 h |
| October 30 | 74°F | 52°F | 22% | 13% | 11 h |
| October 31 | 74°F | 52°F | 22% | 13% | 10 h 50 min |
- Normal high
- 78°FOctober average
- Normal low
- 58°FOctober average
- Precipitation
- 4.33 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 11 h 50 min to 10 h 50 minOctober 1 to October 31
- Days at 70°F or more
- 27
- Days at 80°F or more
- 15
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013880; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Charleston in October?
On a given October day the chance of 0.01 inch or more is 25% on average, highest around October 1 (29%). In all, 4.33 in falls on 7 days of a normal October, 1 of them with an inch or more.
In a normal October in Charleston, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013880.
How humid and windy is Charleston in October?
At 3 p.m. the normal temperature is 72°F with 50% relative humidity and a dew point of 53°F; at 6 a.m. it is 55°F with 88% humidity. The wind averages 7.1 mph, most often from the northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 55°F | 52°F | 88% | 5.8 mph | 62% |
| 9 a.m. | 62°F | 54°F | 73% | 8.3 mph | 56% |
| noon | 71°F | 53°F | 54% | 9.3 mph | 56% |
| 3 p.m. | 72°F | 53°F | 50% | 9.3 mph | 51% |
| 6 p.m. | 65°F | 54°F | 69% | 6.8 mph | 61% |
| 9 p.m. | 60°F | 55°F | 81% | 5.4 mph | 68% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013880. 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 October in Charleston?
The warmest October temperature on Charleston's official record (since 1937) is 94°F, on October 5, 1954; the coldest is 27°F, on October 30, 1952. The wettest October brought 18.91 in (2015).
The October mean against the 1991-2020 normal of 67.8°F: 2021 69.1°F (+1.3), 2022 64.7°F (−3.1), 2023 68.1°F (+0.3), 2024 67.9°F (+0.1), 2025 65.6°F (−2.2). 3 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.1°F | +1.3°F | 4.10 in |
| 2022 | 64.7°F | −3.1°F | 0.70 in |
| 2023 | 68.1°F | +0.3°F | 2.45 in |
| 2024 | 67.9°F | +0.1°F | 0.03 in |
| 2025 | 65.6°F | −2.2°F | 4.15 in |
Source: records: ACIS, NWS threaded record CHSthr; recent months: ACIS, station USW00013880. Records and recent months use complete months only.
How does October in Charleston compare across South Carolina?
Across the 73 places PlainClimate covers in South Carolina, October normal highs run from 63°F in Caesars Head to 79°F in Hampton; Charleston's is 78°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Charleston in September85°F by day, 68°F at night
- Charleston in November69°F by day, 47°F at night
- Charleston through the yearEvery month, frost dates, records and recent years
- South Carolina in OctoberThe statewide normal and the warmest and coolest places
- Hampton: South Carolina's warmest Octobernormal high 79°F