Men aged between 40 and 80 can book online before turning up at the Trident Garage in Guildford Road.
The clinics, run by volunteers, are being held on the first Saturday morning of the month.
1 in 8 men will get prostate cancer, which is more likely to be cured the earlier it is diagnosed, according to charity Prostate Cancer UK.
To book a test, please go to cts.mypsatests.org or via cancertestingsouth.org
There is a fee to have a test as the clinics are run 100% by volunteers.