September
Other strong months: June and May
84/100 weather score
Bulgaria · 1991–2020
Best time to visit
Stara Zagora
For Stara Zagora, September has the most comfortable weather in our climate comparison. Typical daytime highs are 26.2°C, nights average 11.8°C, and rainfall totals about 52 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthSeptember
Typical daytime high26.2°C
Typical night-time low11.8°C
September rainfall52 mm
October
Other strong months: April and May
83/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
5 months fit your choices for Stara Zagora
January has the lowest comfort score at 6 out of 100, compared with September at 84. The main reason is that days reach only 7.2°C, 17° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Stara Zagora?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Stara Zagora?
September is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 26.2°C and 52 mm of rain.
What is the hottest month in Stara Zagora?
August is hottest in this record, with a typical daytime high of 31.1°C and a night-time low of 15.9°C.
Which month has the least rain?
August has the lowest monthly rainfall total at 40 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 7.2°C | -2.6°C | 62 mm | 6.9 | 9 h 23 | 6 | Strong coverage |
| February | 9.4°C | -1.3°C | 64 mm | 6.8 | 10 h 29 | 15 | Strong coverage |
| March | 13.2°C | 1.9°C | 67 mm | 7 | 11 h 48 | 33 | Strong coverage |
| April | 18.2°C | 5.7°C | 55 mm | 6.4 | 13 h 18 | 58 | Strong coverage |
| May | 23°C | 10.2°C | 84 mm | 8.4 | 14 h 34 | 76 | Strong coverage |
| June | 27.6°C | 13.9°C | 73 mm | 7.1 | 15 h 16 | 77 | Strong coverage |
| July | 30.7°C | 15.9°C | 53 mm | 4.2 | 15 h | 73 | Strong coverage |
| August | 31.1°C | 15.9°C | 40 mm | 2.7 | 13 h 54 | 74 | Strong coverage |
| September | 26.2°C | 11.8°C | 52 mm | 3.6 | 12 h 26 | 84 | Strong coverage |
| October | 19.7°C | 7.6°C | 86 mm | 5.7 | 10 h 59 | 63 | Strong coverage |
| November | 13.4°C | 3.2°C | 68 mm | 5.8 | 9 h 43 | 37 | Strong coverage |
| December | 8.1°C | -0.9°C | 89 mm | 8 | 9 h 05 | 7 | Strong coverage |
What has changed
Recent daytime highs are
1.7°C warmer in Stara Zagora.
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
Jan
+2.0
Feb
+2.4
Mar
+1.9
Apr
+1.0
May
+0.6
Jun
+1.2
Jul
+2.4
Aug
+3.3
Sep
+1.4
Oct
+1.0
Nov
+1.7
Dec
+1.4
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.6°C31 Jan 2002 | -17.8°C19 Jan 1967 | 88 mm7 Jan 2012 | 203 mm2023 · driest 0 mm in 1989 | 57 |
| February | 22.8°C6 Feb 2024 | -19.5°C5 Feb 1991 | 82 mm5 Feb 2016 | 156 mm2010 · driest 1 mm in 2008 | 57 |
| March | 27.0°C24 Mar 1977 | -18.0°C6 Mar 1987 | 117 mm16 Mar 2003 | 180 mm2015 · driest 3 mm in 1979 | 57 |
| April | 33.0°C6 Apr 1975 | -8.2°C8 Apr 2003 | 73 mm18 Apr 1997 | 134 mm2014 · driest 1 mm in 1977 | 57 |
| May | 33.5°C3 May 2003 | -1.6°C4 May 2000 | 134 mm16 May 2004 | 238 mm2005 · driest 2 mm in 2002 | 57 |
| June | 38.2°C30 Jun 2017 | 1.0°C18 Jun 1989 | 174 mm18 Jun 2009 | 205 mm2007 · driest 0 mm in 1990 | 57 |
| July | 43.2°C25 Jul 2007 | 4.2°C10 Jul 1998 | 272 mm1 Jul 2011 | 297 mm2011 · driest 0 mm in 1989 | 58 |
| August | 42.0°C12 Aug 1994 | 5.6°C31 Aug 1989 | 183 mm10 Aug 2011 | 238 mm2011 · driest 0 mm in 2003 | 58 |
| September | 37.5°C5 Sep 2015 | 1.5°C28 Sep 2018 | 264 mm20 Sep 2010 | 361 mm2010 · driest 0 mm in 1984 | 55 |
| October | 36.1°C1 Oct 1991 | -5.0°C26 Oct 1979 | 265 mm13 Oct 2002 | 348 mm2009 · driest 0 mm in 1985 | 57 |
| November | 28.9°C5 Nov 2010 | -9.5°C19 Nov 1993 | 126 mm23 Nov 2002 | 181 mm2002 · driest 1 mm in 1986 | 57 |
| December | 21.6°C2 Dec 2010 | -19.5°C27 Dec 1992 | 171 mm3 Dec 2008 | 200 mm2008 · driest 0 mm in 2015 | 57 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 21 | 2 |
| February | 0 | 0 | 16 | 1 |
| March | <1 | 0 | 10 | 2 |
| April | 2 | 0 | 2 | 2 |
| May | 11 | <1 | 0 | 2 |
| June | 22 | 8 | 0 | 2 |
| July | 29 | 18 | 0 | 1 |
| August | 29 | 21 | 0 | <1 |
| September | 19 | 6 | 0 | 1 |
| October | 5 | <1 | 1 | 2 |
| November | <1 | 0 | 7 | 2 |
| December | 0 | 0 | 17 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 88); on 2011–2025 it is May (85). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | <1% | 24% | 7% | 27% | 4.4–9.6°C |
| February | 2% | 24% | 6% | 25% | 4.9–13.4°C |
| March | 9% | 24% | 6% | 24% | 9.5–15.5°C |
| April | 35% | 27% | 7% | 27% | 15.7–20.5°C |
| May | 61% | 28% | 7% | 36% | 20.7–24.4°C |
| June | 75% | 25% | 7% | 27% | 25.7–29.0°C |
| July | 87% | 13% | 4% | 10% | 27.9–32.8°C |
| August | 90% | 10% | 3% | 7% | 27.4–32.8°C |
| September | 84% | 12% | 3% | 9% | 23.9–27.9°C |
| October | 48% | 17% | 6% | 15% | 17.3–22.6°C |
| November | 9% | 21% | 7% | 23% | 9.9–16.1°C |
| December | <1% | 27% | 9% | 28% | 5.8–10.9°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 726848
- NOAA station
- BUM00015730 · KURDJALI
- Station distance
- 89.6 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 25 usable years
- Daylight
- Calculated from latitude 42.43°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Stara Zagora is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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