Climate averages 1991–2020
Sibiu weather
in September.
A mild, moderately wet month: the 4th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Sibiu: daytime highs average 19.6°C and nights cool to about 10.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 87 mm of rain on roughly 12 days, which makes September a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 35 min on an average September day.
The nearest other city in this atlas is Râmnicu Vâlcea (80 km away). In September its highs average 21.3°C, 1.7°C warmer than Sibiu, with 73 mm of rain.
Among the 27 cities listed in Romania, Sibiu ranks 23rd of 27 for the warmest September highs and joint 25th of 27 for the driest September (rainfall, lowest first). The mean September high of those 27 cities is 21.3°C; Sibiu is 1.7°C cooler than that mean.
From September to October, average highs fall by 5.0°C to 14.6°C, and monthly rainfall falls from 87 mm to 66 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sibiu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.4°C-5.6°C | -5.6°C | 43 | 9.7 | 9.19 h |
| February | 4.3°C-4.4°C | -4.4°C | 46 | 10.0 | 10.310 h |
| March | 8.7°C-0.8°C | -0.8°C | 63 | 12.2 | 11.912 h |
| April | 14.6°C4.0°C | 4.0°C | 91 | 14.4 | 13.514 h |
| May | 19.1°C9.1°C | 9.1°C | 120 | 17.5 | 14.915 h |
| June | 22.5°C12.9°C | 12.9°C | 140 | 17.0 | 15.716 h |
| July | 24.2°C14.7°C | 14.7°C | 124 | 15.8 | 15.315 h |
| August | 24.5°C14.9°C | 14.9°C | 111 | 13.6 | 14.114 h |
| September, selected | 19.6°C10.7°C | 10.7°C | 87 | 11.8 | 12.613 h |
| October | 14.6°C5.8°C | 5.8°C | 66 | 9.2 | 11.011 h |
| November | 8.8°C1.0°C | 1.0°C | 51 | 9.5 | 9.510 h |
| December | 3.3°C-3.8°C | -3.8°C | 51 | 9.8 | 8.79 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Râmnicu Vâlcea in SeptemberRomania · 80 kmHigh 21.3°C · Low 11.7°C · 73 mm rain
- Târgu Mureş in SeptemberRomania · 88 kmHigh 20.7°C · Low 11.1°C · 70 mm rain
- Târgu Jiu in SeptemberRomania · 107 kmHigh 21.2°C · Low 11.3°C · 66 mm rain
- Braşov in SeptemberRomania · 114 kmHigh 19.3°C · Low 10.6°C · 59 mm rain
- Cluj-Napoca in SeptemberRomania · 115 kmHigh 20.0°C · Low 10.2°C · 71 mm rain
- Piteşti in SeptemberRomania · 120 kmHigh 20.8°C · Low 11.3°C · 72 mm rain
- Bistriţa in SeptemberRomania · 151 kmHigh 19.4°C · Low 9.6°C · 76 mm rain
- Craiova in SeptemberRomania · 167 kmHigh 24.0°C · Low 14.2°C · 49 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sibiu) is explained once on the Sibiu year overview and on the Sources, method and limits page.