Temperature
Hot by day, warm at night.
89°Ftypical July high
Typical range
July climate
July in Charleston
United States · North America
July is among the hottest months, with some of the year’s highest rainfall totals and muggy conditions.
Wet but workable
Daytime high
89°F
Lows around 75°F
Rain
Rain most days
Sun
11.5 h/day
Air feel
Very humid
Sea temp
83°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, but usually in brief, on-and-off spells. About 20 wet days, the highest monthly average.
65%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
11.5 hJuly sunshine
Heat & humidity by month
Very humid air is a major factor this month.
65%July Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In July, afternoons feel about 94° and nights feel near 82°.
Very coldColdCoolComfortableWarmHotNight hours
Clear sky
Mostly cloudy skies this month.
39%July Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in July.
5 mphJuly Calm
Sea temperature
83°FJuly sea temp
More detailIncludes daypart comfort
Typical July day
July late afternoons are around 87°F, easing to about 83°F in early evening.
Avg temp Typical range
Morning81°F
Feels 87°F
Rain21%
Cloud57%
Humid airVery high
Sun intensityModerate
Midday88°F
Feels 94°F
Rain35%
Cloud62%
Humid airVery high
Sun intensityStrong
Late afternoon87°F
Feels 93°F
Rain43%
Cloud67%
Humid airVery high
Sun intensityStrong
Early evening82°F
Feels 89°F
Rain21%
Cloud68%
Humid airVery high
Sun intensityLow
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 60 | 40 | 2.7 | 8 | 7.3 | 70 | 71 |
| Feb | 64 | 44 | 3.3 | 8 | 8.0 | 71 | 70 |
| Mar | 69 | 49 | 3.3 | 8 | 9.0 | 68 | 71 |
| Apr | 76 | 56 | 3.2 | 8 | 10.8 | 69 | 73 |
| May | 82 | 65 | 3.4 | 11 | 11.6 | 73 | 77 |
| Jun | 87 | 72 | 5.6 | 16 | 11.4 | 77 | 81 |
| Jul | 89 | 75 | 6.4 | 20 | 11.5 | 80 | 83 |
| Aug | 88 | 74 | 6.8 | 19 | 10.8 | 82 | 84 |
| Sep | 84 | 69 | 5.2 | 13 | 9.7 | 80 | 83 |
| Oct | 77 | 58 | 3.5 | 7 | 8.9 | 77 | 80 |
| Nov | 68 | 48 | 2.4 | 7 | 8.3 | 74 | 76 |
| Dec | 62 | 43 | 3.6 | 8 | 7.2 | 75 | 73 |
Similar climates
Similar
Similar travel styleHong KongChinaSimilar travel styleMiamiUnited StatesSimilar travel stylePalermoItalySimilar travel styleJohns IslandUnited States
Want a side-by-side climate view? Compare Charleston with Hong Kong.
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: Jun 1, 2026
Data & methodology