Top-flight clubs are back in action this weekend following a three-week shutdown but Weir believes playing through January and increasing the number of midweek fixtures would have been more beneficial.
The season ends with the Scottish Cup Final on May 27, while the first Europa League qualifiers begin on June 29.
Scotland’s national team also have a vital World Cup qualifier against England at Hampden on June 10.
For the players involved, it means little or no time off over the summer, and Weir knows that puts Scottish clubs at an instant disadvantage going into Europe.
That’s why he is urging Scottish football authorities to give serious consideration to revamping the fixture schedule.
Weir said: “Look at this season. The cup final is on May 27 and clubs are playing in Europe on June 29.
“How do you get your team in the best condition to qualify?
“How do you get them to play consecutive Thursdays during four qualifying rounds to reach the group stage and increase the coefficient with potentially four weeks’ break?
“Is that the best preparation?
“I think we make it difficult. I know it is difficult to schedule games, the winter break and everything else.
“But are we giving ourselves the best chance? I’m not sure. That is my view.
“How many midweek fixtures have we had and how many other games could we have played?
“We could have been a bit busier so I’m not sure a great deal of thought had gone into it. I’m not sure it is the best thing.
“As usual we are looking for quick fixes and I don’t think quick fixes work.”