I don't have the A320 tables, but for the A310, Actual Landing Distance:
Weight 120 tons (MLW is 124 tons, Max takeoff W for the A320 must be around 70 tons)
No Reverser
Autobrakes off
DRY = 880m
WET = 1250M
COVERED W/ 6.3mm OF WATER = 1900m
For dispatch, this weights shall be divided by 0.6, and in flight they can be used as reference, although they require *test pilot* performance in the landing.
So, this should give a fair idea of how short CGH really is for the A320.