Walterboro, South Carolina Weather
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Climate of Walterboro: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Walterboro, with average daytime highs around 33°C. January is the coolest, when nights typically fall to about 3°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 30°C, so the seasons feel very different from each other.
The area receives about 1180 mm of rain in a typical year. Most of it falls from June to September, and August is the wettest month at roughly 150 mm.
For outdoor plans and travel, March to May and October to November usually offer the most comfortable weather in Walterboro, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 14° | 3° | 66 mm | 79% |
| Feb | 16° | 5° | 85 mm | 80% |
| Mar | 20° | 8° | 85 mm | 77% |
| Apr | 25° | 13° | 78 mm | 73% |
| May | 29° | 18° | 94 mm | 71% |
| Jun | 32° | 22° | 137 mm | 73% |
| Jul | 33° | 23° | 140 mm | 73% |
| Aug | 32° | 23° | 150 mm | 77% |
| Sep | 30° | 20° | 102 mm | 77% |
| Oct | 25° | 14° | 87 mm | 76% |
| Nov | 20° | 8° | 66 mm | 76% |
| Dec | 16° | 5° | 91 mm | 80% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Walterboro. Values describe typical conditions, not a forecast.
About Walterboro weather
Walterboro is one of many towns in South Carolina's humid subtropical climate, coastal and low-lying for much of the state, about 70 km west of Charleston. Before the rains arrive, there's hot, humid summers (June–August) with highs commonly in the low-to-mid 30s°C. Cooler months mean mild winters (December–February), rarely dropping below freezing near the coast. This page shows live, auto-refreshing weather for Walterboro: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Walterboro is about 70 km west of Charleston, in South Carolina.
Walterboro sees mild winters (December–February), rarely dropping below freezing near the coast.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Walterboro's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Walterboro, with average daytime highs of about 33°C and nights around 23°C.
The coldest nights come in January, when the average low is about 3°C and daytime highs reach around 14°C. Frost is possible on clear, calm nights.
Walterboro receives about 1180 mm of rain in a typical year. August is the wettest month at roughly 150 mm, and the main rainy period is June to September.
March to May and October to November usually offer the most comfortable weather in Walterboro, with mild daytime temperatures and little rain.
In November Walterboro typically sees daytime highs near 20°C and lows near 8°C, with about 66 mm of rain over the month and average humidity around 76%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Walterboro is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Walterboro's day-to-day weather follows the broader pattern of South Carolina described above. See the hourly weather forecast or the air quality index for more detail.