The temperatures in Sandefjord in August are comfortable with low of 15°C and and high up to 18°C.
You can expect rain for roughly half of the month of August in Sandefjord. 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 Sandefjord in August 2026.
If you’re planning to visit Sandefjord in the near future, we highly recommend that you review the 14 day weather forecast for Sandefjord before you arrive.


