With no shot of an outcome in the climate battered match, authorities canceled play at twelve (0600 GMT).
South Africa chief Hashim Amla said he was frustrated over the loss of playing hours.
"It's a given that when you come the distance from South Africa you truly need to play Test cricket," Amla said at the post-match public interview.
"Be that as it may, these things you can't generally control. So there's no utilization getting baffled about it," he said.
"The diversion was balanced to support us I feel, however there's nothing you can do about it."
This was the first draw for Bangladesh against South Africa after thrashings in past eight Tests, seven by an innings edge.
Bangladesh chief Mushfiqur Rahim said he was expecting a superior result, particularly in the wake of taking the first innings lead.
"Yes, it's baffling. It was truly positive for us to lead the pack against the world's top-positioned Test side," Rahim said after the match.
"In the event that there had been a complete match, the outcome could have been distinctive. We can just take positives from the match.
"Rocking the bowling alley them out efficiently and afterward scoring more than 300 keeps running against them first time, leads the pack, the batting of top and late request are positives for us."
Downpour had washed out the whole fourth day's play and in the ballpark of 50 overs were lost on the second and third days at the Zahur Ahmed Chowdhury Stadium.
South Africa, who scored 248 in the first innings, played out Bangladesh for 326 preceding making 61-0 in their second thump.
Bangladesh's first innings aggregate was their most elevated ever against the Proteas, the top-positioned Test group.
Stiaan van Zyl stayed unbeaten on 33 and Senior member Elgar was 28 not out for South Africa.
Bangladesh's pace debutant Mustafizur Rahman was judged man of the match for his 4-37, incorporating three wickets in an over in the first innings.
The home side named an unaltered squad for the second and last Test, which will be played in Dhaka from July 30. (AFP)