South Carolina · CHS

Charleston weather this week

Just your ID

Charleston scores 8.3 out of 10 and has no genuinely clear day in the next 16.

8.3/10

No clear day

0 genuinely clear days, 0 partly cloudy, 8 overcast, 0 wet, 0 stormy — out of 16 forecast days.

Bright days 0 vs dull days 8. Dull wins, so we do not call this a good week.

We are not showing a flattering tier word here. Why the score and the sky can disagree.

The model gives this week 8.3 out of 10 because it is warm and largely rain-free, and those are the two things the score measures. It is not measuring sunshine. With 0 genuinely clear days and 8 dull ones, expect grey skies. We are showing you the number and the contradiction rather than only the number.

8-day window, 1.6% rain-affected — Cool, grey, and dry — overcast all week, peaks around 84°F

The next 16 days in Charleston

Every number below is the forecast we hold, rendered as text — nothing here is drawn on a canvas or filled in by JavaScript. The rain figure is the highest chance across all 16 days (32%), not the lowest, because the worst number is the useful one.

Booking window Wed 23 Sep–Wed 30 Sep: 8.3/10 for those days alone. The 16-day outlook score (8.3) covers the full table below and includes days outside that window.

Charleston daily forecast, Wed 23 Sep to Thu 8 Oct (16 days total). Best single day scores 9.5; worst scores 5.6. A lone good day cannot carry the week.
Day	High	Low	Rain chance	Sky	Day score
Wed 23 Sep	77°F	69°F	10%	Overcast cloudy	8.5 Overcast, 77°F, dry as a bone.
Thu 24 Sep	76°F	66°F	20%	Overcast cloudy	8.2 Overcast, 76°F, light rain possible.
Fri 25 Sep	73°F	59°F	7%	Overcast cloudy	8.5 Overcast, 73°F, dry as a bone.
Sat 26 Sep	78°F	58°F	0%	Overcast cloudy	8.5 Overcast, 78°F, dry as a bone.
Sun 27 Sep	79°F	64°F	0%	Overcast cloudy	8.5 Overcast, 79°F, dry as a bone.
Mon 28 Sep	81°F	68°F	4%	Overcast cloudy	8.5 Overcast, 81°F, dry as a bone.
Tue 29 Sep	84°F	72°F	6%	Light drizzle cloudy	7.0 Overcast, 84°F, dry as a bone.
Wed 30 Sep	84°F	75°F	10%	Light drizzle cloudy	7.0 Overcast, 84°F, dry as a bone.
Thu 1 Oct	86°F	76°F	32%	Light drizzle wet	7.0 Light drizzle, 86°F — it'll pass.
Fri 2 Oct	80°F	76°F	26%	Rain showers wet	6.6 Rain showers, 80°F — it'll pass.
Sat 3 Oct	76°F	73°F	29%	Rain showers wet	5.6 Rain showers, 76°F — it'll pass.
Sun 4 Oct	78°F	73°F	23%	Rain showers wet	6.6 Rain showers, 78°F — it'll pass.
Mon 5 Oct	86°F	74°F	30%	Drizzle wet	6.2 Drizzle, 86°F — it'll pass.
Tue 6 Oct	79°F	66°F	27%	Overcast cloudy	7.9 Overcast, 79°F, light rain possible.
Wed 7 Oct	76°F	63°F	26%	Clear clear	9.5 Clear skies, 76°F, zero drama.
Thu 8 Oct	77°F	63°F	23%	Light drizzle wet	7.0 Light drizzle, 77°F — it'll pass.

How this week got its score

8 forecast days: 0 clear/mainly clear, 0 partly cloudy, 8 overcast, 0 wet (fog/drizzle/rain/showers), 0 stormy.
Trimmed mean of day scores 8.2 × 0.55 = 4.51
Worst day drag: worst day is 7.0 × 0.25 = 1.75 - one bad day cannot be averaged away.
Longest consecutive run of good days (≥7.0) is 8/8 = 100% coverage × 0.20 = 2.00
Best single day is 8.5 but it only counts through the trimmed mean - a lone great day cannot carry the window.

The full model, including why a single great day cannot rescue a bad week, is on the methodology page.

Getting to Charleston

The nearest airport we price is CHS. From New York City that is about 1h 45m in the air out of EWR, 628 miles. Then about 16m to drive from CHS (est. 10 mi — road model, not real routing). Total door-to-lounger: 2h 01m. Flight times from 55 other departure metros are on the search page.

Where to stay in Charleston

We hold no live hotel rates for Charleston right now, so there is nothing honest to show here. Rates return as soon as the supplier does — the refresh state is on system status.

So, should you go?

Charleston scores 8.3 out of 10 and has no genuinely clear day in the next 16. If sunshine is the reason you are travelling, pick somewhere else this week — the full list is sorted by genuinely clear days, so the top of it is where to look.

Frequently asked

Is it raining in Charleston this week?

No. The current 16-day forecast for Charleston shows no rain or storm days, peaking at 32% chance on the worst day. Cloud is not the dealbreaker here — rain is, and none is forecast.

How many clear days does Charleston have this week?

Zero. Charleston has no genuinely clear day in the next 16.

Is Charleston good for a trip this week?

Not for the sun. Charleston scores 8.3/10 this week, but that score measures warmth and dryness, not sunshine — there is no genuinely clear day in the forecast.

Charleston by month — 8-year ERA5 history

Historical clear-sky percentages from the ERA5 reanalysis (2018–2025). This is history, not a forecast — the 7-day forecast above is this week. They can and do differ.

Charleston: clear-sky % by month, ERA5 2018–2025. n = days sampled.
Month	Historically clear	Sample (n)
January	1%	n=248	all destinations →
February	5%	n=226	all destinations →
March	12%	n=248	all destinations →
April	38%	n=240	all destinations →
May	37%	n=248	all destinations →
June	22%	n=240	all destinations →
July	12%	n=248	all destinations →
August	12%	n=248	all destinations →
September	32%	n=240	all destinations →
October	45%	n=248	all destinations →
November	12%	n=240	all destinations →
December	2%	n=248	all destinations →

Each month links to the detailed almanac page for Charleston in that month. The “all destinations” column links to the full ranking across all destinations for that month.

Forecast data from Open-Meteo, last refreshed 2026-09-24T02:07:50.537610Z. Hotel names and rates come from LiteAPI and change constantly; the rate shown is the rate we held at refresh time, not a quote. Scores are forecasts, not guarantees, and the whole model is published on our methodology page.