The highest day temperature in September 2025 was 95°F. The lowest night temperature was 78°F. The average values for day and night temperatures during September were 90.4°F и 79.7°F respectivly.

Most of the days in September are gloomy but you can also expect sunny days.

Precipitation total in September for Ayuthaya is 7.3 in. It makes september one of the most rainy months of the year.

The average wind speed in September is 5.8 mph. It makes September one of the most windless months of the year for Ayuthaya.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ayuthaya in September is 5.3 hours.