Novo Mesto weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: May – September
What is the weather like in Novo Mesto in September?
In September, Novo Mesto is warm: daytime highs average 21 °C, and nights cool down to about 12 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 112 mm in total. All in all, September is a good month for a holiday in Novo Mesto.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 85 | 74 | 64 |
| Day | 27° | 21° | 16° |
| Night | 16° | 12° | 8° |
| Sun | 9 h | 6 h | 4 h |
| Rain days | 10 | 11 | 9 |
More details for September
- Daylight
- 12 h 37 min06:36 – 19:13
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Ljubljana
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 30 %47 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Novo Mesto in September: quick answers
Is Novo Mesto hot in September?
Warm rather than hot: in September, daytime highs in Novo Mesto average 21 °C and nights cool to about 12 °C.
Does it rain much in Novo Mesto in September?
Rain is frequent, with about 11 rainy days and 112 mm in total.
Novo Mesto month by month
The whole year in Novo MestoAll destinations: SloveniaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences