The Ronaldsway Met Office says temperatures were back closer to average in September, after the warmest summer on record.
It was a very wet month, with almost double the 30 year average of rainfall being measured.
The first day of the month was the warmest, with a peak of 19.3° Celsius.
Levels of sunshine were also right on the average.
Lifeboat launched to help fishing boat
Smartmeter alert problem now fixed, says Manx Utilities
Merchant Navy Day marked this week
Filipino festival planned for Laxey
Glen Maye requisition meeting scheduled
Viking longboat races today
Postal vote applications have to be in soon