In September warmest sea in Caspian Sea is usually observed in the following locations: Derbent, Izberbash, Kaspiysk.
Table below shows the average sea water temperature for marine resorts of Caspian Sea in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Derbent | 73.6°F | 73.6°F | 72.5°F |
| Izberbash | 73.3°F | 72.9°F | 71.8°F |
| Kaspiysk | 72.5°F | 72.5°F | 71.7°F |
| Mahachkala | 72.3°F | 72.4°F | 72.1°F |
| Aktau | 67.3°F | 69.7°F | 64.1°F |
| Bautino | 66.9°F | 68.3°F | 68.9°F |
| Lagan | 63.0°F | 65.5°F | 67.7°F |
| Astrahan | 54.9°F | 59.2°F | 52.8°F |
Charts below show average sea water temperature for Caspian Sea resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Caspian Sea resorts at that time.
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