It is possible for family members and friends to visit a student in the UK whilst they are studying, also for the graduation ceremony. Nationals of most countries are required to have a visa to enter the UK. The category they would apply under is ‘Standard Visitor Visa’.
To find out if your friend or family member is required to have a visitor visa please check UKVI Website
Family members or friends would need to apply for a standard visitor visa.
Visitors must show they wish to visit for a maximum of 6 months, that they intend to leave the UK at the end of the visit and have enough money to support themselves during their visit.
Visitors under this category are not allowed to work during their visit to the UK, and study cannot be the main reason for their visit. If they intend to do this they will need to see if they can qualify through one of the other visa categories. The UKVI Website can help identify which visa is appropriate for the visit.
It is also not possible to switch from this category to another visa in the UK such as a Tier 4 Visa.
Visas in this category are normally granted for up to 6 months. Check current fees on UKVI website.
They can make the application online. The following documents will need to be submitted when making the application: