Swimming in Marstal in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Marstal in september 2025.
In september, according to seasonal norms, the sea temperature in Marstal is:
Minimum: 57°F
Average: 63°F
Maximum: 68°F
Other useful seasonal weather averages in september:
- Outside temperature: 58°F to 63°F
- Most common weather: "Clear/Sunny"
- The wind blows at 8.1mph
- It rains a total of 4.1in, over 7 day(s).
Should we swim in Marstal in september?
No... The water temperature in Marstal in september is cold
Swimming in Marstal in september is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 63°F (minimum: 57°F - maximum: 68°F).
Note also that in september, the climate is good with an average outside temperature of 61°F, 4.1in of precipitation (over 7 days) and 83.36 % humidity.
Water and normal seasonal temperatures in Marstal in september
| September | |||
| Average sea temperature | 63°F | ||
| Minimum sea temperature | 57°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 63°F | ||
| Minimum outside temperature | 59°F | ||
| Wind speed | 15.5mph | ||
| Wind temperature | 56°F | ||
| Precipitation | 4.1in | ||
| Number of days of rain | 7 jour(s) (22%) | ||
| Humidity | 84% | ||
| Visibility in kilometers | 9.47km | ||
| Cloud cover | 46% | ||
| Our opinion | cold swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Marstal
Swim elsewhere in Denmark in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Copenhagen in september | 62°F | 67°F | cold swimming | Faroe Islands in september | 52°F | 54°F | freezing swimming | Odense in september | 63°F | 68°F | cold swimming | Aarhus in september | 62°F | 67°F | cold swimming | Esbjerg in september | 63°F | 68°F | cool swimming | Hirtshals in september | 61°F | 65°F | cold swimming | Ringkøbing in september | 62°F | 66°F | cold swimming | Stege in september | 62°F | 67°F | cold swimming | Thisted in september | 61°F | 65°F | cold swimming | Tórshavn in september | 51°F | 54°F | freezing swimming |