Since this is not mandatory to carry the below-mentioned document, although it advisable to carry along.
For a short-stay visa, it is advisable to apply for an Estonia Schengen visa appointment, UK at least 15 working days prior. You can submit your application up to 6 months in advance.
Your passport should be valid for at least three months beyond your intended departure from Estonia. If your passport is expiring before the departure date, make sure you renew it before applying for an Estonia Schengen visa appointment, UK.
Once you get the approval, you will receive your Estonia visa and passport via courier in 15 to 20 working days.
Summer is the best time to visit Estonia if you want to explore the beautiful vegetation of the country, and fewer crowds lead to a very calming experience.