Apple has announced that its annual Worldwide Developers Conference will take place in San Francisco from 10 June and 14 June, and that tickets for the event will go on sale tomorrow.

In a press release sent out today, Apple hinted that developers will be treated to an "in-depth look" at iOS 7 and OS X 10.9, Apple's next mobile and Mac operating systems, at WWDC 2013.

"At the five-day conference, developers from around the world will learn about the future of iOS and OS X, enabling them to create incredible new apps with innovative features," the press release reads. "WWDC will also feature more than 100 technical sessions presented by over 1,000 Apple engineers, hands-on labs to help developers integrate new technologies, as well as the popular Apple Design awards, a showcase of the most outstanding apps available through the App Store and Mac App Store."

Apple senior vice president of Worldwide Marketing, Phil Schiller, said: "We look forward to gathering at WWDC 2013 with the incredible community of iOS and OS X developers. Our developers have had the most prolific and profitable year ever, and we're excited to show them the latest advances in software technologies and developer tools to help them create innovative new apps. We can't wait to get new versions of iOS and OS X into their hands at WWDC."

Developers can purchase tickets for the event tomorrow at 10am PDT, which translates to 6pm here in the UK. They'll set attendees back $1,599, or £1,050.

Last year, WWDC 2012 sold out in less than two hours after they went on sale. SEE: Apple's WWDC ticket fiasco

In addition to iOS 7 and OS X 10.9, which Apple has now pretty much confirmed will make an appearance at WWDC 2013, we could see the launch of a new Mac Pro, which CEO Tim Cook has already revealed is in the works at the company. Apple was forced to stop selling its Mac Pro in Europe as of March this year, as it no longer complies with safety regulations.

It's been rumoured that iOS 7 could come with a 'killer app' in the form or a radio service or mobile payment system, that is expected to be previewed at WWDC in June. As for Mac OS X 10.9, speculation suggests that the new operating system could see the introduction of Siri and Maps, and could also be nicknamed 'Lynx'.

WWDC 2012 saw the launch of iOS 6, new Macs and Mountain Lion. You can find out more about last year's event here.

See also:

Apple CEO Tim Cook admits: 'We shouldn't have announced new iMac until 2013'

Tim Cook reveals Apple is working on "amazing" new products in "exciting" new categories

Apple's Cook talks quarterly earnings, new products