Simon was found dead in January and the cause of death was unclear at the time.
The verdict, from coroner Anita Bhardwaj, was published on Friday (6 April) morning.
Bhardwaj wrote (via Sky News) that Simon, whose legal name, was Simon Barnes, “was 52 with a medical history of alcohol dependence”.
“On 17 January at 7.15am, Simon was found deceased at the Port of Liverpool Building in a well between the building and street,” she continued. “Toxicological analysis found a high concentration of alcohol.
“The temperature on the day was three degrees and it is more likely than not the combination of the alcohol consumed and the temperature caused his death.”
Simon played Tinky Winky in the popular children’s TV show from 1997 to 2001.
In the wake of his death, Emily posted a tribute to her uncle on Instagram. It read: “My wonderful uncle Simon Barnes has been taken from us all so suddenly.
“The kindest and most talented man you could ever wish to meet. Loved by all who knew him, and will be forever.”