Australia's T20I series in Bangladesh ended in a humiliating defeat as the tourists were bowled out for 62 in the final game of the five-match series.

Bangladesh had already clinched a series victory going into the final contest in Dhaka, but rounded things off in style with a 60-run victory. 

The hosts reached 122-8 on a surface that consistently proved challenging to bat on, before Shakib Al Hasan took over with ball in hand.

Shakib took 4-9 from 3.4 overs, while Mohammad Saifuddin claimed 3-12 as Australia were dismissed with just 13.4 overs bowled.

Afterwards, stand-in captain Matthew Wade, who top-scored for Australia with 22, found little reason to be upbeat following the 4-1 series defeat.

"It's hard to say there will be more positives. Certainly a great learning opportunity for our group," Wade said. 

"I've played for a few years now, [these were] certainly the toughest conditions to play T20 cricket in.

"It wasn't our series unfortunately. There's no excuses of not playing enough cricket. We had enough cricket in the West Indies to come and play good cricket, we just didn't."

Shakib stars

Shakib's masterful display with the ball saw 15 of his 22 deliveries produce dot balls.

Finishing the series with seven wickets at an average of 18.14 and 114 runs at a strike rate of 100.88, no player did more for Bangladesh as they clinched back-to-back bilateral T20I series wins for the first time in their history, following up the triumph over Zimbabwe in emphatic fashion.

"Thanks to my team-mates, this achievement wouldn't have been possible without their help," said Shakib. "I think we played some really good cricket through two series, in Zimbabwe and here. Obviously the wicket was tough, but we held our nerve well."

Modest totals beyond tourists

No match in the series produced an aggregate score of over 244 as both teams found posting big totals difficult.

However, the difference was that Bangladesh scored at least 120 in all but one match. Australia, missing several key players such as Steve Smith and David Warner, managed that feat just once.

Wade admitted as much, adding: "Credit to Bangladesh, they did well. We really had to scrounge, their batsmen found a way to get there [110-120 totals].

"Our bowling was good, but we just didn't have enough runs on the board. We've got to find a way to get better in spinning conditions."