Swimming in Vaasa in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Vaasa in september 2025.
In september, according to seasonal norms, the sea temperature in Vaasa is:
Minimum: 48°F
Average: 55°F
Maximum: 62°F
Other useful seasonal weather averages in september:
- Outside temperature: 52°F to 57°F
- Most common weather: "Clear/Sunny"
- The wind blows at 6.2mph
- It rains a total of 3.6in, over 6 day(s).
Should we swim in Vaasa in september?
No... The water temperature in Vaasa in september is freezing
You won't be able to swim in Vaasa in september! The water temperature is freezing, reaching as low as 48°F (and only 62°F at best)! Our advice: if you are going to Vaasa this month, plan to sightsee and forget the beach!
Note also that in september, the climate is tolerable with an average outside temperature of 55°F, 3.6in of precipitation (over 6 days) and 83.09 % humidity.
Water and normal seasonal temperatures in Vaasa in september
| September | |||
| Average sea temperature | 55°F | ||
| Minimum sea temperature | 48°F | ||
| Maximum sea temperature | 62°F | ||
| Average outside temperature | 56°F | ||
| Maximum outside temperature | 58°F | ||
| Minimum outside temperature | 54°F | ||
| Wind speed | 13.7mph | ||
| Wind temperature | 50°F | ||
| Precipitation | 3.6in | ||
| Number of days of rain | 6 jour(s) (20%) | ||
| Humidity | 84% | ||
| Visibility in kilometers | 9.32km | ||
| Cloud cover | 48% | ||
| Our opinion | freezing swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Vaasa
Swim elsewhere in Finland in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Helsinki in september | 60°F | 67°F | cold swimming | Åland in september | 50°F | 69°F | freezing swimming | Kalajoki in september | 55°F | 61°F | freezing swimming | Kotka in september | 59°F | 66°F | freezing swimming | Oulu in september | 55°F | 62°F | freezing swimming | Turku in september | 51°F | 69°F | freezing swimming |