Booking with British Airways 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Thessaloniki. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
In terms of precipitation, rainfall in Thessaloniki ranges from 20.0 - 55.0 inches per month. December is typically the wettest month, when rainfall can reach 55.0 mm. August is typically the driest time to visit Thessaloniki when rainfall is around 20.0 mm.
If weather is an important factor for your trip to Thessaloniki, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
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