Of the decided respondents, 34.6 percent said they would vote for the Social Democrats if elections were held today, while 28 percent said they would vote for the conservative Moderates, who lead the government coalition.
Together, the opposition Social Democrats, Left and Green parties had 49.4 percent, while the government Alliance had 41.4 percent. Another opinion poll, carried out by Novus for Swedish Radio News, resulted in similar figures with 48.7 percent for the three red green parties and 40.9 percent for the government Alliance.
Marie Demker, a political scientist at Gothenburg University, believes voters have become disillisioned by the government's passivity.
"Not that much is happening from the government's side, in terms of big reforms or a big vision about reforms further down the road," Demker tells Swedish Radio News.
The Center party, one of the government's coalition partners, came in with 3.8 percent in the Ipsos poll, which is under the 4 percent threshhold that party would need to stay in Parliament. The Christian Democrats, another of the coalition partners, lost 0.2 percent since February, going down to exactly 4 percent.
The anti-immigration Sweden Democrats went down from 10.2 percent to 8 percent in the Ipsos poll, which surveyed more than 2,000 people between March 7 and 26. Of the respondents, 20.8 percent were undecided.