In May, Ayutthaya experiences quite a warm climate. The temperature often reaches a high of 35°C, making the days hot and humid. On the other hand, the nights are a bit cooler with a low of 26°C. This contrast in temperature between day and night can be quite noticeable.
The city also sees a significant amount of rainfall in May, with about 180 mm falling throughout the month. This can make the weather feel even more humid. The wind speed averages around 13 km/h, providing a slight breeze that can offer a bit of relief from the heat. Despite the rain and heat, the sun still manages to peek through at times, adding a bit of brightness to the day.