Koper in October
Find out everything about the water temperature in Koper in October. Average, minimum and maximum recorded temperatures as well as daily temperature in October for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in October
Minimum:
61.3 °F
Average:
67.7 °F
Maximum:
74.6 °F
Sea water temperature in Koper in October
In the city of Koper, the month of October is somewhat comfortable for swimming. The minimum recorded temperature during this month was 61.3°F on October 31, 2021, with an average temperature being 67.7°F and a maximum temperature reaching 74.6°F on October 1, 2023.
| Date | 10 years average | 2026 | 2025 |
|---|---|---|---|
| Oct 1 | 71.0°F | 73.3°F | 72.5°F |
| Oct 2 | 70.6°F | 73.2°F | 71.9°F |
| Oct 3 | 70.4°F | 73.0°F | 71.3°F |
| Oct 4 | 70.1°F | 72.9°F | 70.1°F |
| Oct 5 | 69.9°F | 72.6°F | 69.8°F |
| Oct 6 | 69.6°F | 73.1°F | 69.2°F |
| Oct 7 | 69.2°F | 72.2°F | 67.8°F |
| Oct 8 | 69.1°F | 72.1°F | 67.5°F |
| Oct 9 | 69.0°F | 72.5°F | 67.3°F |
| Oct 10 | 69.0°F | 72.8°F | 67.7°F |
| Oct 11 | 68.7°F | 72.5°F | 67.7°F |
| Oct 12 | 68.5°F | 72.3°F | 68.0°F |
| Oct 13 | 68.3°F | 71.5°F | 68.1°F |
| Oct 14 | 68.1°F | 70.2°F | 67.6°F |
| Oct 15 | 67.9°F | 70.0°F | 67.9°F |
| Oct 16 | 67.6°F | 69.9°F | 67.6°F |
| Oct 17 | 67.4°F | 69.7°F | 67.0°F |
| Oct 18 | 67.1°F | 69.9°F | 66.6°F |
| Oct 19 | 67.1°F | 69.7°F | 66.2°F |
| Oct 20 | 67.1°F | 69.6°F | 66.3°F |
| Oct 21 | 66.9°F | 69.7°F | 66.1°F |
| Oct 22 | 66.8°F | 69.9°F | 65.9°F |
| Oct 23 | 66.6°F | 69.0°F | 65.9°F |
| Oct 24 | 66.5°F | 68.5°F | 65.2°F |
| Oct 25 | 66.2°F | 68.0°F | 64.6°F |
| Oct 26 | 66.1°F | 67.5°F | 64.5°F |
| Oct 27 | 65.9°F | 67.3°F | 64.1°F |
| Oct 28 | 65.2°F | 67.0°F | 63.3°F |
| Oct 29 | 65.1°F | 66.9°F | 63.0°F |
| Oct 30 | 64.9°F | 66.7°F | 62.8°F |
| Oct 31 | 64.6°F | 66.4°F | 62.7°F |
In Koper, the months June through September offer comfortable swimming conditions, which amounts to 96 swimming days.
The warmest water in Koper was recorded on August 18, 2024, reaching a 84.6°F. While the coldest temperature occurred on March 10, 2022, dipping to 47.0°F. The average readings by season are 51.9°F in Winter, 56.8°F in Spring, 76.9°F in Summer, and 67.9°F in Autumn.
October's average temperature is a slight drop from September's average of 74.4°F. In November, the temperature is expected to decrease further, potentially averaging around 61.6°F.
Popular neighboring cities and resorts
| City | Water temperature* | Distance** |
|---|---|---|
| Trieste |
66.5°F
|
7mi |
| Poreč |
68.0°F
|
23mi |
| Lignano Sabbiadoro |
62.4°F
|
31mi |
| Lovran |
64.2°F
|
32mi |
| Rovinj |
68.5°F
|
32mi |
| Rijeka |
64.3°F
|
38mi |
| Rabac |
63.7°F
|
38mi |
| Caorle |
63.4°F
|
41mi |
* current water temperature in this city
** straight line distance from Koper