Euro's intra-day weakness suggests the corrective rise from last week's low of 1.2588 has possibly ended earlier at 1.2780 and below said support would extend recent decline from 1.3334 to 1.2560/70, however, loss of momentum should keep price above 1.2522.  
On the upside, above 1.2676 would prolong choppy trading and risk 1.2746.