Booking with Finnair 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Charleston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a Finnair flight from London to Charleston in January, with an average price of £441. Conversely, traveling with Finnair from London to Charleston in July will be the most expensive, with an average cost of £525. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
In terms of precipitation, rainfall in Charleston ranges from 61.0 - 183.0 inches per month. August is typically the wettest month, when rainfall can reach 183.0 mm. November is typically the driest time to visit Charleston when rainfall is around 61.0 mm.
If weather is an important factor for your trip to Charleston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).
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