President Moon Jae-in's approval rating increased slightly last week, a poll showed Monday.

In a survey conducted by Realmeter, 68.5 percent of respondents said they approved of the way the president managed state affairs, up 0.8 percentage point from two weeks earlier.

The weekly survey was conducted Sunday through Friday on 3,075 adults throughout the nation. It had a margin of error of 1.8 percentage points. The survey was skipped in the first week of this month when the country marked the weeklong Chuseok holiday, South Korea's autumn harvest celebration.

Of all respondents, 25.8 percent said they did not approve of how the president managed state affairs, down 0.2 percentage point over the cited period.

Both the ruling and main opposition parties enjoyed a slight boost in the approval ratings, but three minor opposition parties saw their ratings dwindle, according to the local pollsters.

The ruling Democratic Party's approval rating came to 50.6 percent, up 0.9 percentage point, while that of the main opposition Liberty Korea Party increased 1.8 percentage points to 18.9 percent.

The splinter Bareun Party scored 5.5 percent, down 0.1 percentage point, with the approval rating of the liberal People's Party slipping 1.7 percentage points to 4.9 percent.

The approval rating of the progressive Justice Party retreated 1.2 percentage points to 4.8 percent. (Yonhap)