Climate averages 1991–2020
Shumen weather
in September.
A warm, moderately wet month: the 4th warmest and the joint 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Shumen: daytime highs average 22.5°C and nights cool to about 12.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 50 mm of rain on roughly 6 days, which makes September a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 33 min on an average September day.
The nearest other city in this atlas is Varna (80 km away). In September its highs average 22.6°C, about as warm as Shumen, with 48 mm of rain.
Among the 10 cities listed in Bulgaria, Shumen ranks 8th of 10 for the warmest September highs and joint 7th of 10 for the driest September (rainfall, lowest first). The mean September high of those 10 cities is 23.2°C; Shumen is 0.6°C cooler than that mean.
From September to October, average highs fall by 5.9°C to 16.7°C, and monthly rainfall rises from 50 mm to 51 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
Shumen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.1°C-3.4°C | -3.4°C | 47 | 7.5 | 9.49 h |
| February | 6.3°C-2.3°C | -2.3°C | 43 | 7.5 | 10.510 h |
| March | 10.4°C0.8°C | 0.8°C | 52 | 8.8 | 11.912 h |
| April | 15.9°C5.3°C | 5.3°C | 52 | 9.7 | 13.413 h |
| May | 20.9°C10.5°C | 10.5°C | 61 | 10.9 | 14.715 h |
| June | 24.8°C14.8°C | 14.8°C | 63 | 10.2 | 15.315 h |
| July | 27.2°C17.1°C | 17.1°C | 54 | 8.4 | 15.015 h |
| August | 27.5°C17.1°C | 17.1°C | 37 | 6.2 | 14.014 h |
| September, selected | 22.5°C12.9°C | 12.9°C | 50 | 6.4 | 12.513 h |
| October | 16.7°C8.0°C | 8.0°C | 51 | 6.7 | 11.111 h |
| November | 10.8°C3.3°C | 3.3°C | 46 | 6.5 | 9.810 h |
| December | 5.4°C-1.6°C | -1.6°C | 50 | 8.0 | 9.09 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
- Varna in SeptemberBulgaria · 80 kmHigh 22.6°C · Low 15.8°C · 48 mm rain
- Sliven in SeptemberBulgaria · 81 kmHigh 23.4°C · Low 14.1°C · 58 mm rain
- Burgas in SeptemberBulgaria · 96 kmHigh 23.5°C · Low 15.2°C · 50 mm rain
- Ruse in SeptemberBulgaria · 101 kmHigh 24.1°C · Low 14.5°C · 55 mm rain
- Stara Zagora in SeptemberBulgaria · 140 kmHigh 24.3°C · Low 14.0°C · 47 mm rain
- Bucharest in SeptemberRomania · 145 kmHigh 23.4°C · Low 13.6°C · 60 mm rain
- Constanţa in SeptemberRomania · 171 kmHigh 22.5°C · Low 15.6°C · 51 mm rain
- Edirne in SeptemberTurkey · 180 kmHigh 26.6°C · Low 15.0°C · 27 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 Shumen) is explained once on the Shumen year overview and on the Sources, method and limits page.