Thunberg was charged with “the crime of disobedience to law and order” earlier this month after participating in a protest on June 19 which blocked oil tankers in part of Malmö harbor.
Prosecutors said the protest caused traffic disruption in Malmö. Greta was charged for failing to leave the scene when asked to by the police.
The court imposed a fine of approximately $144, in the form of 30 daily fines of 50 Swedish krona ($4.80), according to the Malmö City Court spokesperson.
Thunberg pleaded not guilty to the charges, arguing she acted out of “necessity” in the context of a climate emergency, the spokesperson said.
Irma Kjellström, spokesperson for activist group Ta Tillbaka Framtiden, which organized the June protest, said Thunberg was one of many young people blocking oil tankers.
In January, Thunberg was detained by police during a protest in the village of Lützerath, Germany, over the expansion of a coal mine. She was released later the same day.