Kazanlak weather in September

In September, Kazanlak sees average daytime highs of 23°C and overnight lows near 13°C, with 52 mm of rain across 7.2 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 21°C by the end. The sky is clear or mostly clear about 50% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Kazanlak's 3rd-clearest and 6th-windiest month. For the whole year in context, see Kazanlak's year-round climate.

Daytime high
23°
4th warmest
Overnight low
13°
9th coldest
Rainfall
52 mm
7.2 wet days
Daylight
12 h 18 min
6:04 AM – 6:21 PM
Cloud cover
43%
3rd clearest
Wind
7 km/h
6th windiest
Solar energy
4.43 kWh/m²
Travel score
7.5
out of 10

Kazanlak is city in Kazanlak municipality, Stara Zagora oblast, Bulgaria.

Density
1,329/km²
people per km²
Founded
1300

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 21°C by the end.

A typical September day in Kazanlak reaches about 23°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32615
42514
52514
62514
72514
82514
92414
102414
112413
122413
132413
142413
152413
162313
172313
182313
192312
202312
212212
222212
232212
242212
252212
262111
272111
282111
292111
302111

How September really feels in Kazanlak

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kazanlak weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°4984.39.20.0
Feb / -1°487.63.710.30.7
Mar11° / 6310.23.211.62.6
Apr16° / 6711.60.613.14.8
May21° / 11°9514.2014.45.9
Jun25° / 15°8313.1015.16.4
Jul28° / 17°7110.4014.86.6
Aug28° / 17°507.5013.76.9
Sep23° / 13°527.2012.37.5
Oct17° / 587.20.310.85.9
Nov11° / 557.21.69.62.7
Dec / -1°608.53.58.90.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
37921
47822
57822
67624
77624
87525
97525
107426
117327
127327
137228
147129
157129
167030
176931
186832
196832
206634
216535
226535
236337
246238
256139
266139
275941
285842
295842
305743

Chance of precipitation in September

Any precipitation

Kazanlak gets around 52 mm of rain over 7.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
125
225
325
425
525
624
724
824
923
1023
1123
1222
1322
1422
1522
1622
1723
1823
1923
2023
2123
2223
2323
2423
2524
2624
2724
2824
2924
3024

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14337201
24536181
34735170
44935150
55135140
65335120
75435110
85535100
9563590
10573580
11583570
12583570
13593560
14593560
15603460
16603460
17623350
18633250
19643150
20653050
21653050
22662950
23672850
24682750
25692650
26712540
27722440
28722440
29742330
30752230

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:48 AM to 6:20 AM, and sunset from 6:49 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:486:49
213.05:496:47
312.95:506:45
412.95:516:43
512.85:526:41
612.85:536:40
712.75:546:38
812.75:556:36
912.65:566:34
1012.65:586:32
1112.55:596:30
1212.56:006:29
1312.46:016:27
1412.46:026:25
1512.36:036:23
1612.36:046:21
1712.26:056:19
1812.26:066:18
1912.16:086:16
2012.16:096:14
2112.06:106:12
2212.06:116:10
2311.96:126:08
2411.96:136:06
2511.86:146:05
2611.86:156:03
2711.76:176:01
2811.76:185:59
2911.66:195:57
3011.66:205:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.43 kWh/m².

For context, solar energy here swings from a low near 1.51 kWh/m² to a high of 6.43 kWh/m² in June across the year — September's 4.43 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.3Bright
194.3Bright
204.2Bright
214.1Bright
224.1Bright
234.0Bright
244.0Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Kazanlak?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.5
Sightseeing
1st-best month of the year
5.9
Beach & pool
3rd-best month of the year

September is one of the better times to visit Kazanlak for general sightseeing.

What to pack for Kazanlak in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Kazanlak sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in Kazanlak in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kazanlak peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highVery highHighModerateLowJul 15UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr8Very high
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Kazanlak in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kazanlak is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2015 µg/m³Dec 1210 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar16Moderate
Apr14Moderate
May14Moderate
Jun14Moderate
Jul12Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Kazanlak?

Kazanlak sits at 42.6°N, 25.4°E, 366 m above sea level, in Bulgaria. The nearest listed city is Stara Zagora, 29 km away.

Stara ZagoraGabrovoChirpanKarlovoRakovskiSevlievoNova ZagoraVeliko Tarnovo

Topography around Kazanlak

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kazanlak.

Within 3 km, the terrain around Kazanlak has only modest variations in elevation — a maximum elevation change of 171 m around an average of 382 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,210 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,335 m.

The land around Kazanlak is covered by trees (26%), artificial surfaces (25%) and grassland (24%) within 3 km, trees (55%), grassland (20%) and cropland (20%) within 16 km, and trees (45%) and cropland (37%) within 80 km.

3 km
171 m
16 km
1,210 m
80 km
2,335 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Stara Zagora 29 km · Gabrovo 29 km · Chirpan 47 km · Karlovo 49 km · Rakovski 51 km · Sevlievo 51 km · Nova Zagora 53 km · Veliko Tarnovo 55 km

Bulgaria travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$20,328
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
9.2
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 594
Religion
Christian 65%Muslim 10%none 5%other 0%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kazanlak (42.6167°, 25.4°, elevation 366 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).