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Charleston in June: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Charleston in June is climatically well suited to beach holidays. The average daily high is around 31 °C, and the sea is about 26 °C. With about 18 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #7
Warmth
#3
Dryness
#10
Sun
#1
Sea warmth
#4
Published best categories: Beach
Charleston · JunePhoto: Something Original ( talk ) · CC BY-SA 3.0Climate facts
- Average high
- 31 °C
- Average low
- 22 °C
- Sea
- 26 °C
- Rainy days (est.)
- 18 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 76 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| May | 29 | 18 | 12 | 86 | 7.8 | 73 | 1.3 | 23 | 75 |
| June (selected) | 31 | 22 | 18 | 139 | 7.9 | 76 | 1.2 | 26 | 58 |
| July | 32 | 24 | 21 | 153 | 7.7 | 77 | 1.2 | 28 | 49 |
How do the previous and next months compare?
Baseline: June (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| May | +17 | -2.7 °C | -4.1 °C | -5.8 | -53.8 mm | -0.1 h | -2.4 % | +0.1 m/s | -3.5 °C |
| July | -9 | +1.2 °C | +1.8 °C | +3.5 | +13.7 mm | -0.2 h | +1.4 % | ±0 m/s | +1.9 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Charleston in June?
The average daily high is around 31 °C, with an average daily low of about 22 °C.
Can you swim in Charleston in June?
The sea is about 26 °C (warm).
Does it rain a lot in Charleston in June?
The curated estimate is about 18 rainy days per month, not a directly measured long-term average. Total precipitation averages around 139 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Charleston?
By the climate score, April, May, October and November are the strongest months for Charleston. For a beach trip: May, June, September and October. June is not among them.