Stockholm Weather in September
In September, Stockholm averages a high of 16°C (61°F) and a low of 10°C (50°F), from 55 years of daily records (1971–2026).
16°C
Average high
61°F
10°C
Average low
50°F
28°C
Record high
82°F · September 5, 2024
0°C
Record low
32°F · September 30, 1976
What September Is Like in Stockholm
- Stockholm's hottest September day on record is a recent one: 28°C (82°F) on September 5, 2024.
- September in Stockholm has become 2.3°C (4.1°F) warmer on average: the 2011–2025 average against 1970–1989.
- 7 of the 10 warmest Septembers on record in Stockholm have come since 2011.
- September 2025 was the 4th warmest September in 55 years of records, 2.8°C (5.0°F) above the long-run average.
At least 1 mm of rain falls on 28% of September days, and the month averages 52 mm in total.
Warmest: 1999 (19.5°C)Latest: 2025 (18.9°C)10-year averageLong-run average (16.1°C)
Look Up a Day in September
See the weather in Stockholm on any September date, year by year.
Source: NOAA GHCN-Daily, Stockholm_A (1996–2026); Stockholm (1971–1998). Averages cover 1971–2026. How we compute this