Hi I got some for an opel astra few weeks ago - which would be about same size tyres - assuming you don't have alloys or otherwise - cost was €65 each.
This was in Meath.
This is where I got them - There is a statoil garage on the main street in Enfield. They have a tyre section. The young fellow was great also repaired a flat tyre checked all the rest for air and pressure. Put on the cable ties - very neat, quick friendly service. The tyres are hancock make and I have had them previously with no problems and lots of mileage out of them.
Price is one criteria, brand/quality of the tyres is also an important one to consider.
The cheapest may not be the best value for money and ... most importantly safety.
I think i paid about €80 per tyre 18 months ago for Michelin 185/55R15
Tyres dimensions (from nissan.ie) on an Almera are 195/55R16.
While being on the high side, I would think €400 is not far off from what to expect to have to pay.
I got 4 Pirelli tyres(ford focus) from Dave McCann in Blanchardstown pre Christmas for 60euro a piece. Even came out to my place of business in Coolock and fitted them for no extra cost.
I went to Dave McCann. Spent about €60 per tyre for quality tyres (Dunlop E2000) - can't recommend him enough, good friendly, fast and efficient service from the man himself. Even changed a faulty head light lamp free of charge, nice touch.... best value in tyres as well.