The temperatures in Kristiansand in September are usually low and can range between 12°C and 15°C.
You can expect rain for roughly half of the month of September in Kristiansand. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Kristiansand in September 2025.
If you’re planning to visit Kristiansand in the near future, we highly recommend that you review the 14 day weather forecast for Kristiansand before you arrive.