In September warmest sea in Baltic Sea is usually observed in the following locations: Tartu, Narva, Toila.
Table below shows the average sea water temperature for marine resorts of Baltic Sea in September for the last three years.
| Place name | September 2024 | September 2023 | September 2022 |
|---|---|---|---|
| Tartu | 66.0°F | 63.8°F | 61.6°F |
| Narva | 65.4°F | 62.6°F | 58.0°F |
| Toila | 65.4°F | 61.7°F | 57.3°F |
| Sillamäe | 65.2°F | 61.7°F | 57.4°F |
| Primorsk | 65.1°F | 62.4°F | 56.4°F |
| Parnu | 64.9°F | 63.1°F | 58.1°F |
| Lappeenranta | 64.4°F | 62.0°F | 57.5°F |
| Kotka | 64.4°F | 62.6°F | 58.4°F |
| Saaremaa | 64.0°F | 63.0°F | 57.9°F |
| Vyborg | 63.9°F | 61.7°F | 57.3°F |
| Kunda | 63.9°F | 61.0°F | 56.0°F |
| Tallinn | 63.7°F | 62.2°F | 56.8°F |
| Lahti | 62.4°F | 61.2°F | 62.4°F |
| Uppsala | 62.0°F | 62.0°F | 60.3°F |
| Vantaa | 61.9°F | 61.9°F | 60.1°F |
| Porvoo | 61.9°F | 61.1°F | 59.6°F |
| Turku | 61.9°F | 61.3°F | 57.7°F |
| Espoo | 61.8°F | 61.8°F | 59.8°F |
| Vasteras | 61.8°F | 62.0°F | 60.3°F |
| Helsinki | 61.7°F | 61.9°F | 60.0°F |
| Karlstad | 61.5°F | 61.2°F | 59.9°F |
| Orebro | 61.3°F | 61.4°F | 59.0°F |
| Stockholm | 60.4°F | 60.9°F | 60.0°F |
Charts below show average sea water temperature for Baltic Sea resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Baltic Sea resorts at that time.
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