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Sea Temperature in Trosa in September
© Tina Avlskarl
Complete information on the sea temperature range in the Baltic Sea in Trosa in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Trosa. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Trosa in September
10°C
MINIMUN
14.5°C
AVERAGE
19°C
MAXIMUM
Historical Data of Water Temperature in September in Trosa
Water Temperature Chart for Baltic Sea in Trosa in September
Sea Temperature Table in Trosa in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 15°C | 17°C | 16°C | 15.3°C |
| Sep 2 | 16°C | 18°C | 16°C | 16.0°C |
| Sep 3 | 15°C | 17°C | 16°C | 15.5°C |
| Sep 4 | 15°C | 17°C | 16°C | 15.5°C |
| Sep 5 | 15°C | 17°C | 15°C | 15.5°C |
| Sep 6 | 15°C | 17°C | 15°C | 15.8°C |
| Sep 7 | 15°C | 17°C | 15°C | 15.8°C |
| Sep 8 | 16°C | 16°C | 15°C | 15.8°C |
| Sep 9 | 15°C | 16°C | 14°C | 15.3°C |
| Sep 10 | 15°C | 15°C | 14°C | 15.3°C |
| Sep 11 | 16°C | 16°C | 14°C | 15.8°C |
| Sep 12 | 15°C | 15°C | 14°C | 14.8°C |
| Sep 13 | 16°C | 15°C | 14°C | 15.0°C |
| Sep 14 | 16°C | 15°C | 15°C | 15.3°C |
| Sep 15 | 15°C | 15°C | 14°C | 14.8°C |
| Sep 16 | 16°C | 15°C | 14°C | 15.0°C |
| Sep 17 | 15°C | 14°C | 15°C | 14.5°C |
| Sep 18 | 15°C | 14°C | 14°C | 14.5°C |
| Sep 19 | 15°C | 15°C | 14°C | 14.8°C |
| Sep 20 | 15°C | 14°C | 14°C | 14.5°C |
| Sep 21 | 15°C | 13°C | 14°C | 14.3°C |
| Sep 22 | 14°C | 13°C | 14°C | 14.0°C |
| Sep 23 | 14°C | 13°C | 14°C | 14.0°C |
| Sep 24 | 14°C | 13°C | 14°C | 14.0°C |
| Sep 25 | 14°C | 14°C | 14°C | 14.3°C |
| Sep 26 | 14°C | 14°C | 14°C | 14.3°C |
| Sep 27 | 14°C | 13°C | 14°C | 13.8°C |
| Sep 28 | 13°C | 14°C | 14°C | 13.8°C |
| Sep 29 | 13°C | 14°C | 14°C | 13.8°C |
Trosa Climate and Swimming Opportunities in September
16°C
Average Day Air Temperature
9°C
Average Night Air Temperature
51 mm
Precipitation Amount per Month
10 days
Number of Rainy Days
13 hrs
Daylight
per Day
4 hrs
Sunshine
per Day
15 km/h
Average Wind Speed
79%
Average
humidity
Trosa lies within the Södermanland in Sweden. The average daytime temperature in Trosa in September is 16°C (60°F), while the nighttime average is 9°C (48°F). There are typically 10 rainy days during the month, with a total precipitation of 51 mm (2.0 inches). The daylight duration in September in Trosa is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 15 km/h (9 mph), and the humidity level is around 79%.
The water temperature in Trosa in September ranges from 13°C to 16°C (55°F to 61°F). At the beginning of the month, the average temperature is around 16°C (61°F), shifting to 15°C (59°F) by mid-September and reaching 14°C (57°F) in the last ten days. Overall, the average sea temperature in Trosa for September is 15°C (59°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Trosa
What is the sea temperature in Trosa in September?
The water temperature in the Baltic Sea in Trosa in September ranges from 13°C to 16°C (55°F to 61°F).
Is it possible to swim in the Baltic Sea in Trosa in September?
The average sea temperature in Trosa in September is 15°C (59°F), and the air temperature is 16°C (60°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.