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What is the weather like in Stockholm in September?

Temperature, precipitation and sunshine in September, with the record range.

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Short answer

Stockholm in September is mild and turning cooler, with a mean temperature of about 13 °C in SMHI's 1991–2020 normals. The exact September normal is 13.1 °C, with 53 mm of precipitation and 170 hours of sunshine. These are long-term averages for the Stockholm station, not a forecast.

Stockholm Illustration of a season wheel with snow, a birch leaf, sun and rain around a red Swedish cottage

Why

  1. According to SMHI, the September normal at its Stockholm station is 13.1 °C, 4.6 degrees below August and 5.4 above October.
  2. SMHI lists 170 hours of normal sunshine in Stockholm in September, down from 234 hours in August.
  3. SMHI's records since 1901 show a September high of 27.9 °C (1968) and a low of -1.5 °C (1912) in Stockholm.

Details

Normal September precipitation in Stockholm is 53 mm, lower than the 66 mm of August. The preliminary September 2026 table shows a mean of 14.3 °C, 1.2 degrees above the normal.

Tip

Pack for two seasons: a light jacket and a sweater for days that can still feel like summer, and a warmer layer for evenings, since frost has been recorded in September.

What may differ

September is warmer in Gothenburg (14.0 °C) and Malmö (14.2 °C) and much colder in Kiruna (6.0 °C), according to SMHI normals.

People also ask

  • What is the temperature in Stockholm in September?
  • How warm is it in Stockholm in September?

Sources

Information checked on 27 October 2026.

Stockholm

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