September weather forecast
Gothenburg, Sweden

With the arrival of September, Gothenburg begins its transition to cooler autumnal temperatures. The warmth of August dissipates, giving way to cooler evenings and moderate rainfall. Weather patterns shift significantly compared to August, with temperatures dropping and more rainfall to anticipate. With autumn upon the city, Gothenburgers witness the transformation of colour in many public parks and gardens. Nonetheless, the sea, with a promising average temperature of 16.1°C (61°F), continues to allure visitors with water sports and beaches.

Temperature

The onset of September in Gothenburg results in a small decrease in the average high-temperature, moderately receding from a pleasant 21.8°C (71.2°F) in August to a refreshing 18°C (64.4°F). Throughout the month of September, Gothenburg reports a steady low-temperature average of 10.7°C (51.3°F).

Rainfall

In Gothenburg, in September, it is raining for 16 days, with typically 84mm (3.31") of accumulated precipitation. In Gothenburg, during the entire year, the rain falls for 163 days and collects up to 791mm (31.14") of precipitation.

Sea temperature

In Gothenburg, in September, the average water temperature is 16.1°C (61°F).
Note: The majority of people do not enjoy swimming in 16.1°C (61°F). The difficulty in controlling breathing escalates as the temperature descends from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in September in Gothenburg is 12h and 47min.
On the first day of September, sunrise is at 06:13 and sunset at 20:09. On the last day of the month, sunrise is at 07:15 and sunset at 18:48 CEST.

Sunshine

In Gothenburg, the average sunshine in September is 5.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 3 in September leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.