July will be very big month for google because in this month Google announced that the site whose open without https is mark as not secured in chrome browser. Small Website whose is not secure ranking will goes down and it also depend on the website traffic, site scope and size of website.
After the redirect website http to https need to change in Google Webmaster.
How You can shift you website HTTP to HTTPS:
Step 1: First of all you need to take SSL from your hosting provider.
Step2: Need to install SSL.
Step 3: Open you htaccess file in you file manager and write code to redirect your website http to https,
Step 4: Open Google Webmaster and delete last property those are created without Https and setup new website with Https.
After Follow all steps check your website, it is open with http or with https after removed your history in chrome browser.
If it is open with https then will saw a green secure connection.