I had this problem with a 2002 accord - there is a generic problem with the Accords of this vintage, easily fixed. One of the A/C hoses develops a leak - it is the one leading from the compressor to the aircon radiator. I got the part from a Honda dealer and had it fitted and the aircon charged by a guy in Meath - took 15 minutes on the spot - check for oily deposit around this hose. Cost about €110 for the charge, €50 for the part (AFAIK). Can PM details later. Some mobile guys wil ldo a re-charge, but won't fit the part - the A/C system has to be purged and de-pressurised to fit this.
BTW - re-charge every 2-3 years recommended for A/C. If it is not leaking, you can dDIY with a kit from Halfords (€60).