Head coach Matt Maynard was pleased with his side’s progression in the Vitality Blast this year but believes that consistency is key moving forward if they want to push for the quarterfinals and beyond.
Glamorgan rounded off their T20 campaign with a convincing 35-run victory over the Kent Spitfires at Canterbury last night.
The Welsh County finished sixth in the south group with five wins from 12 games, an improvement on the previous season.
"We've performed better this year, but there's still improvement to go," said Maynard.
"It was a nice way to end it, but we're all disappointed we haven't managed to qualify. In one or two games we just didn't manage to get over the line and that's the game of T20 cricket.
"There are small margins, winning those key moments in games. We got in a good position against Surrey but didn't get over the line.”
New signing Sam Northeast showed his class at the top of the order, finishing with 510 runs, the fourth-highest Glamorgan tally in 20 years of the competition.
Glamorgan legend Michael Hogan was the top wicket-taker with 20, rolling back the years with some vintage performances in what will be the right-arm seamer’s last season with the Club.
"Sam Northeast had a superb competition, very consistent, Michael Hogan had a fantastic campaign, nice to see Prem Sisodiya come back into some form.
"Andrew Salter and Dan Douthwaite contributed at times, but it's about getting a bit more consistency from the middle order.
"I was pleased to see Billy Root, having to up his strike rate, he's come in and played a vital role against Kent. Just a little bit more consistency in the middle order and we could be challenging.
"This year we tried to be more attacking in the power-play, Hoges certainly did that alongside Michael Neser, those two were terrific. That's probably the right formula but we need more consistency with the batting, and when we've fielded well, those have been the games we've won.
"It's been an improvement in the campaign, but it's not where we and the club want to be."
Glamorgan welcome table-topping Nottinghamshire to Sophia Gardens on 11th July in the LV= County Championship, and then travel to Leicestershire the following week before they begin the defence of their Royal London Cup title against Kent on 4th August.