Nova Zagora weather in September

In September, Nova Zagora sees average daytime highs of 25°C and overnight lows near 14°C, with 38 mm of rain across 5.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 54% 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 Nova Zagora's 3rd-clearest and 4th-windiest month. For the whole year in context, see Nova Zagora's year-round climate.

Daytime high
25°
4th warmest
Overnight low
14°
9th coldest
Rainfall
38 mm
5.5 wet days
Daylight
12 h 18 min
6:02 AM – 6:19 PM
Cloud cover
41%
3rd clearest
Wind
7 km/h
4th windiest
Solar energy
4.46 kWh/m²
Travel score
7.8
out of 10

Nova Zagora is city in Nova Zagora municipality, Sliven oblast, Bulgaria.

Density
966/km²
people per km²

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 27°C in the first days to 23°C by the end.

A typical September day in Nova Zagora reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, September runs about 5°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12816
22816
32716
42716
52715
62715
72715
82615
92615
102615
112615
122614
132614
142514
152514
162514
172514
182514
192414
202413
212413
222413
232413
242313
252313
262312
272312
282312
292212
302212

How September really feels in Nova Zagora

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.

Nova Zagora weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°477.53.29.20.2
Feb / -0°446.52.510.31.3
Mar12° / 548.5211.63.2
Apr17° / 509.10.313.15.5
May22° / 12°6110.9014.46.7
Jun27° / 16°4610015.16.6
Jul30° / 18°427.6014.85.9
Aug30° / 18°284.8013.76.1
Sep25° / 14°385.5012.37.8
Oct19° / 5360.210.86.5
Nov12° / 516.60.99.63.4
Dec / -0°577.82.68.90.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38020
48020
57921
67921
77822
87822
97723
107723
117723
127723
137624
147525
157525
167426
177327
187228
197129
207030
216931
226832
236733
246634
256535
266436
276436
286238
296238
306139

Chance of precipitation in September

Any precipitation

Nova Zagora gets around 38 mm of rain over 5.5 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 18% and peaks near 20% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
118
218
318
418
518
617
717
817
916
1016
1116
1216
1315
1416
1516
1616
1716
1816
1917
2017
2118
2218
2319
2419
2519
2620
2720
2820
2920
3020

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 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13936233
24135212
34335202
44535182
54735162
64835152
74936132
85136121
95137111
105138101
115138101
12523891
13523891
14533890
15553780
16553780
17563680
18573580
19573580
20583480
21593380
22603280
23613180
24633070
25642970
26652870
27662860
28662860
29682750
30682750

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 5:45 AM to 6:17 AM, and sunset from 6:46 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:456:46
213.05:466:44
312.95:486:42
412.95:496:41
512.85:506:39
612.85:516:37
712.75:526:35
812.75:536:33
912.65:546:32
1012.65:556:30
1112.55:566:28
1212.55:576:26
1312.45:586:24
1412.46:006:22
1512.36:016:21
1612.36:026:19
1712.26:036:17
1812.26:046:15
1912.16:056:13
2012.16:066:11
2112.06:076:10
2212.06:086:08
2311.96:106:06
2411.96:116:04
2511.86:126:02
2611.86:136:00
2711.76:145:59
2811.76:155:57
2911.66:165:55
3011.66:175:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.46 kWh/m².

For context, solar energy here swings from a low near 1.47 kWh/m² to a high of 6.53 kWh/m² in June across the year — September's 4.46 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.4Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
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 Nova Zagora?

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

7.8
Sightseeing
1st-best month of the year
6.9
Beach & pool
3rd-best month of the year

September is one of the better times to visit Nova Zagora for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nova Zagora in September

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

In September, Nova Zagora sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Nova Zagora 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 Nova Zagora peaks around July 17 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 17UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr8Very high
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

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

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1916 µg/m³Sep 1910 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr15Moderate
May13Moderate
Jun13Moderate
Jul12Good
Aug11Good
Sep10Good
Oct10Good
Nov11Good
Dec11Good
Location & terrain

Where is Nova Zagora?

Nova Zagora sits at 42.5°N, 26.0°E, 130 m above sea level, in Bulgaria. The nearest listed city is Stara Zagora, 31 km away.

Stara ZagoraSlivenYambolKazanlakDimitrovgradHarmanliChirpanGabrovo

Topography around Nova Zagora

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

Within 3 km, the terrain around Nova Zagora has only modest variations in elevation — a maximum elevation change of 23 m around an average of 131 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 580 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,139 m.

The land around Nova Zagora is covered by cropland (72%) within 3 km, cropland (62%) within 16 km, and trees (41%) and cropland (39%) within 80 km.

3 km
23 m
16 km
580 m
80 km
2,139 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Stara Zagora 31 km · Sliven 34 km · Yambol 40 km · Kazanlak 53 km · Dimitrovgrad 59 km · Harmanli 62 km · Chirpan 64 km · Gabrovo 72 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 Nova Zagora (42.4833°, 26.0167°, elevation 130 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).