The maximum daily temperature 33°C — 1 September 2016.
The maximum night temperature 22°C — 1 September 2019.
The minimum daily temperature 11°C — 19 September 2017.
The minimum night temperature 8°C — 18 September 2013.
Koper, Slovenia — weather in September, water temperature
Weather in resort cities around the world, data for the past 5 years. Information includes daytime and nighttime temperatures, water temperature, rainfall, and day length. Convenient graphics and weather comparison in different resorts around the world.
Koper — weather by month, water temperature
Koper — weather in September, water temperature
Air temperature
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
Water temperature
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
The warmest water 26 °C — 1 September 2019.
The coldest water 20.5 °C — 30 September 2015.
Sunny, cloudy and gloomy days
Sunny days — 19
Rainy days — 7
Gloomy days — 4
Precipitation, mm
Maximum precipitation 121.8 mm — November.
Minimum precipitation 68.7 mm — January.
Wind speed, km / h
Maximum wind speed 10.9 km / h — February.
Minimum wind speed 8.2 km / h — December.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.1 h. — July.
The minimum number of hours of sunshine per day 4.6 h. — December.
Compare weather
| Koper — Dolenjske Toplice |
| Koper — Bled |
| Koper — Maribor |
| Koper — Piran |
| Koper — Rogaska Slatina |
| Koper — Terme Dobrna |
| Koper — Smarjeske Toplice |
| Koper — Bovec |
| Koper — Zrece |
| Koper — Kranjska Gora |
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