Festival organisers had asked people not to arrive by car as it was reported two of the main car parks were closed, but by mid-afternoon the gates were fully thrown open again.
Despite the rain and mud - which, quite frankly, Glastonbury just would not be Glastonbury without - people at the festival continue to have fun regardless.
Although there was no official acts playing last night festival goers wasted no time by getting stuck into dancing and partying.
Some donned glow in the dark costumes, and others threw caution to the wind by whipping their tops off to embrace the hippy spirit the festival is famous for.
This morning as people wake up and emerged from their tents into the quagmire, the weather has been mostly dry at the Somerset site.
28
Campers struggle to make it across the siteCredit: PA:Press Association
28
A good pair of wellies is a must for the dirty week aheadCredit: PA:Press Association
28
The paths of mud and water-logged fields on day two are visible from high above parts of the siteCredit: SWNS
28
The scale of the festival is enormous and if the rain continues the thousands of pairs of feet will continue to churn up the muddy ground - but it is certain that bad weather won't stop the funCredit: SWNS
Temperatures could rise to highs of 19 degrees celsius today, with the sun breaking through the current grey cloud covering.
Despite this promise of a change in weather, plenty of people who did not get tickets to the festival have taken to social media to declare how glad they are to be missing out on the mud and torrential rain.
28
There has been concern voiced by those not at the festival that people who are at Glastonbury may not have voted in the EU Referendum before they leftCredit: Reuters
28
A sea of mud is all that is left of most of the campsites as the grass has disappeared after heavy rain and thousands of people walking on sodden groundCredit: SWNS
28
Most festival goers will feel like they truly earned their festival experience by struggling through the queues and mud yesterday to set up campCredit: SWNS
28
Always time for a selfie. One person made the most of a break in the weather to take a snap of herself at the festivalCredit: SWNS - Bristol +44 (0)1179066550
28
Neat rows of the VIP sections of the campsite look much tidier and less muddy compared to the more cramped fields were the majority of people will campCredit: SWNS
If the weather does improve, the rain showers are unlikely to leave - the Met Office shows that the chance of thundery showers from Friday afternoon through to Saturday lunchtime are still high, with sunshine on Sunday.
However it looks like the mud is there to stay, as is tradition.
28
Trekking through the mud - prepared festival goers have a specially made cart to drag equipment throughCredit: PA:Press Association
28
A buggy splashes through the muddy water as a festival worker moves through the site near some food standsCredit: Rex Features
28
Mud is fun for some: Kids at the festival will be having the time of their lives messing about in the muddy waterCredit: PA:Press Association
28
This reveller is ready to party with a cart of booze to fuel the long weekend of musicCredit: PA:Press Association
28
Some supplies proved hard to pull through the mud on the journey to the campsite...Credit: PA:Press Association
28
This lad has all the essentials for the weekend - sleeping kit, a tent, some beer and presumably some hair gelCredit: PA:Press Association
28
The site is a sea of mud with deep tracks made by vehicles, pictured here cutting through a pathway next to a campsiteCredit: PA:Press Association
28
Wellies are firmly on. It is unlikely these girls will take their waterproof shoes off as the mud looks set to stayCredit: PA:Press Association
28
A pro: This festival-goer has clearly done this before and had lugged along a wheelbarrow to help her get through the mudCredit: PA:Press Association
28
This pair are excited to arrive at Worthy Farm and have all the essentials covered up so no mud or pesky rain gets inCredit: PA:Press Association
28
One of the main stages looks relatively clear of mud - this will all have changed by the end of the festivalCredit: PA:Press Association
We pay for your stories! Do you have a story for The Sun Online news team? Email us attips@the-sun.co.ukor call 0207 782 4368.