Temperature
Warm by day, mild at night.
83°Ftypical September high
Typical range
September climate
September in Kiawah Island
United States · North America
Warm days and plenty of sun. Humid air is the main drawback.
Some tradeoffs
Mid to late
Daytime high
83°F
Lows around 70°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Humid
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days, more than in most months.
43%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
9.8 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
70%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 85° and nights feel near 76°.
Very coldColdCoolComfortableWarmHotNight hours
Clear sky
Partly cloudy skies this month.
47%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
8 mphSeptember Light breeze
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 82°F, easing to about 77°F in early evening.
Avg temp Typical range
Morning75°F
Feels 78°F
Rain20%
Cloud53%
Humid airHigh
Sun intensityLow
Best windowMidday82°F
Feels 84°F
Rain29%
Cloud56%
Humid airHigh
Sun intensityStrong
Late afternoon82°F
Feels 84°F
Rain29%
Cloud58%
Humid airHigh
Sun intensityModerate
Early evening77°F
Feels 81°F
Rain17%
Cloud56%
Humid airVery high
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 59 | 43 | 3.0 | 9 | 7.6 | 72 |
| Feb | 64 | 48 | 2.8 | 8 | 8.2 | 73 |
| Mar | 70 | 54 | 3.6 | 8 | 9.1 | 72 |
| Apr | 75 | 60 | 3.1 | 6 | 10.8 | 73 |
| May | 80 | 67 | 3.1 | 11 | 11.8 | 76 |
| Jun | 85 | 74 | 4.6 | 17 | 11.6 | 80 |
| Jul | 88 | 77 | 7.8 | 23 | 11.6 | 81 |
| Aug | 86 | 76 | 8.1 | 20 | 10.9 | 83 |
| Sep | 83 | 70 | 4.5 | 13 | 9.8 | 81 |
| Oct | 76 | 60 | 3.0 | 6 | 9.2 | 78 |
| Nov | 69 | 52 | 1.8 | 6 | 8.4 | 76 |
| Dec | 62 | 47 | 3.2 | 8 | 7.3 | 76 |
Similar climates
Similar
Similar climatePalermoItalySimilar climateTaorminaItalySimilar climateSyracuseItalySimilar climateRomeItaly
Want a side-by-side climate view? Compare Kiawah Island with Palermo.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology