Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
May verdict
Very good for holiday weather
Average highs sit around 28°C, giving warm days by monthly-average standards. Sunshine averages 9.4h per day, so bright days are a strong part of the month. Rainfall averages 101mm, so some wet days are possible.
Monthly averages
Temp
28°C
Rain
101mm
Sun
9.4h
Sea
23°C
Weather score
74
Very good
Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 101mm, so some wet days are possible.
Bright
Sunshine averages 9.4h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare North Charleston, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
May28°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
May101mm average rain
May sits near North Charleston's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, April to May, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May9.4 hours average sun
May is one of North Charleston's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
May23°C average sea
May is close to North Charleston's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJune to September
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
May74 weather score
May is one of North Charleston's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to October
These months have the strongest weather score in the monthly averages.
North Charleston MarriottNorth Charleston, South Carolina, USA
Aloft Charleston Airport & Convention CenterNorth Charleston, South Carolina, USA
Courtyard Charleston-North CharlestonNorth Charleston, South Carolina, USA
Courtyard North Charleston Airport/ColiseumNorth Charleston, South Carolina, USA
Fairfield Inn & Suites Charleston Airport/Convention CenterNorth Charleston, South Carolina, USA
Fairfield Inn & Suites Charleston North/Ashley PhosphateNorth Charleston, South Carolina, USA