Svilengrad weather in September

In September, Svilengrad sees average daytime highs of 27°C and overnight lows near 15°C, with 30 mm of rain across 4.3 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 29°C in the first days to 24°C by the end. The sky is clear or mostly clear about 57% 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 Svilengrad's 3rd-clearest and 8th-windiest month. For the whole year in context, see Svilengrad's year-round climate.

Daytime high
27°
4th warmest
Overnight low
15°
9th coldest
Rainfall
30 mm
4.3 wet days
Daylight
12 h 18 min
6:01 AM – 6:18 PM
Cloud cover
37%
3rd clearest
Wind
9 km/h
8th windiest
Solar energy
4.58 kWh/m²
Travel score
7.5
out of 10

Svilengrad is city in Svilengrad municipality, Haskovo oblast, Bulgaria.

Density
213/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 29°C in the first days to 24°C by the end.

A typical September day in Svilengrad reaches about 27°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°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)
13017
23017
32917
42917
52917
62917
72916
82816
92816
102816
112816
122816
132815
142715
152715
162715
172715
182715
192615
202614
212614
222614
232614
242514
252514
262514
272513
282413
292413
302413

How September really feels in Svilengrad

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.

Svilengrad 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 / -0°547.42.79.31.0
Feb / 496.9210.32.0
Mar13° / 578.61.411.73.8
Apr18° / 467.80.113.16.1
May24° / 12°529014.37.1
Jun28° / 17°417.90156.3
Jul31° / 19°365.5014.75.1
Aug32° / 19°203.5013.75.1
Sep27° / 15°304.3012.37.5
Oct20° / 10°635.90.110.97.1
Nov14° / 576.50.49.64.4
Dec / 648.22.391.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% 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 24%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28416
38416
48317
58218
68218
78119
88119
98119
108020
118020
127921
137921
147822
157723
167723
177624
187624
197525
207426
217327
227228
237129
247030
256931
266832
276733
286733
296634
306535

Chance of precipitation in September

Any precipitation

Svilengrad gets around 30 mm of rain over 4.3 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 14% and peaks near 18% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
113
213
313
413
513
613
713
813
913
1013
1113
1212
1312
1412
1512
1613
1713
1813
1913
2014
2114
2215
2315
2415
2516
2616
2717
2817
2917
3018

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 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14238192
24437172
34537162
44736152
54936142
65036132
75136121
85236111
95336101
105336101
11543691
12543691
13553681
14563581
15563581
16573481
17583381
18593281
19583291
20593191
21603091
22612991
23622891
24632791
25642781
26642781
27652681
28652681
29652771
30652771

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:16 AM, and sunset from 6:44 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:456:44
212.95:466:43
312.95:476:41
412.85:496:39
512.85:506:38
612.85:516:36
712.75:526:34
812.75:536:32
912.65:546:30
1012.65:556:29
1112.55:566:27
1212.55:576:25
1312.45:586:23
1412.45:596:21
1512.36:006:20
1612.36:016:18
1712.26:026:16
1812.26:036:14
1912.16:046:12
2012.16:066:11
2112.06:076:09
2212.06:086:07
2311.96:096:05
2411.96:106:03
2511.86:116:02
2611.86:126:00
2711.76:135:58
2811.76:145:56
2911.76:155:54
3011.66:165:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.58 kWh/m².

For context, solar energy here swings from a low near 1.52 kWh/m² to a high of 6.69 kWh/m² in June across the year — September's 4.58 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.4Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.0Bright
264.0Bright
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Is September a good time to visit Svilengrad?

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
7.7
Beach & pool
2nd-best month of the year

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

What to pack for Svilengrad in September

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

In September, Svilengrad sees daytime highs around 27°C and nights near 15°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Svilengrad 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 Svilengrad peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 14UV 9Dec 23UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr8Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Svilengrad 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 Svilengrad 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 1810 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar16Moderate
Apr15Moderate
May14Moderate
Jun13Moderate
Jul12Good
Aug11Good
Sep10Good
Oct11Good
Nov11Good
Dec11Good
Location & terrain

Where is Svilengrad?

Svilengrad sits at 41.8°N, 26.2°E, 60 m above sea level, in Bulgaria. The nearest listed city is Harmanli, 31 km away.

HarmanliEdirneOrestiádaHaskovoDimitrovgradUzunköprüKardzhaliNova Zagora

Topography around Svilengrad

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

Within 3 km, the terrain around Svilengrad has only modest variations in elevation — a maximum elevation change of 115 m around an average of 66 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 651 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,242 m.

The land around Svilengrad is covered by cropland (47%) and grassland (22%) within 3 km, cropland (46%), trees (26%) and grassland (25%) within 16 km, and cropland (46%), trees (31%) and grassland (21%) within 80 km.

3 km
115 m
16 km
651 m
80 km
1,242 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Harmanli 31 km · Edirne 31 km · Orestiáda 40 km · Haskovo 56 km · Dimitrovgrad 59 km · Uzunköprü 69 km · Kardzhali 70 km · Nova Zagora 81 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 Svilengrad (41.7684°, 26.1977°, elevation 60 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).