September in Linköping averages a daily high of 16.9°C with nights around 7.8°C. Expect roughly 11.6 wet days totalling 52.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Linköping is June–August.
Based on LINKOEPING MALMSLAETT, SW (5.3km), 1995–2024. 30 years of September data.