Generally speaking, Bangkok can be visited year-round, but the best time to visit is during the cooler and drier months from November to February. Keep in mind that peak tourist season is from December to January, so expect larger crowds and higher prices during this time. If you don't mind the heat and humidity, visiting during the off-season months can provide some cost savings and fewer crowds, but be prepared for occasional rain showers. It's always a good idea to check the latest Bangkok travel advisories and news updates before planning any international travel.