Ruse weather in September

In September, Ruse sees average daytime highs of 24°C and overnight lows near 14°C, with 55 mm of rain across 6.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 22°C by the end. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Ruse's 3rd-clearest and 6th-windiest month. For the whole year in context, see Ruse's year-round climate.

Daytime high
24°
4th warmest
Overnight low
14°
9th coldest
Rainfall
55 mm
6.1 wet days
Daylight
12 h 18 min
6:02 AM – 6:19 PM
Cloud cover
43%
3rd clearest
Wind
10 km/h
6th windiest
Solar energy
4.21 kWh/m²
Travel score
7.6
out of 10

Ruse is city in Ruse municipality, Ruse oblast, Bulgaria.

Air quality
Elevated
PM2.5 20.1 µg/m³ · 2019
Density
953/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 22°C by the end.

A typical September day in Ruse reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°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)
12716
22716
32716
42716
52616
62615
72615
82615
92615
102615
112515
122515
132514
142514
152514
162414
172414
182414
192414
202413
212313
222313
232313
242313
252313
262213
272212
282212
292212
302212

How September really feels in Ruse

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.

Ruse weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°447.14.69.10.0
Feb / -1°3973.610.20.6
Mar12° / 508.82.311.63.1
Apr17° / 559.60.413.25.6
May23° / 13°6510.8014.56.7
Jun27° / 17°7910.7015.26.5
Jul29° / 18°648.4014.95.9
Aug29° / 18°485.9013.86.2
Sep24° / 14°556.1012.37.6
Oct18° / 516.90.210.86.1
Nov11° / 486.91.69.52.9
Dec / -1°477.73.48.80.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27723
37624
47525
57525
67525
77426
87327
97327
107228
117129
127129
137030
146931
156931
166832
176733
186634
196535
206535
216436
226337
236238
246139
256139
266040
275941
285941
295842
305743

Chance of precipitation in September

Any precipitation

Ruse gets around 55 mm of rain over 6.1 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 20% and peaks near 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
121
221
320
420
519
619
719
818
918
1018
1118
1218
1318
1419
1519
1620
1720
1821
1921
2021
2122
2222
2322
2422
2522
2622
2722
2822
2922
3022

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13342223
23641203
33841192
44041172
54241151
64441141
74541131
84741121
94841110
104941100
115040100
12514090
13523990
14533890
15533890
16543790
17553690
18563590
19573490
20593290
21603190
22622990
23632890
24652690
25662590
26672490
27682390
28692290
29702190
30712180

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min 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 90 minutes over September. Sunrise moves from 5:44 AM to 6:18 AM, and sunset from 6:48 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:446:48
213.05:456:46
313.05:466:44
412.95:486:42
512.95:496:40
612.85:506:38
712.85:516:37
812.75:526:35
912.75:536:33
1012.65:556:31
1112.65:566:29
1212.55:576:27
1312.55:586:25
1412.45:596:23
1512.36:006:21
1612.36:026:19
1712.26:036:17
1812.26:046:16
1912.16:056:14
2012.16:066:12
2112.06:076:10
2212.06:096:08
2311.96:106:06
2411.96:116:04
2511.86:126:02
2611.86:136:00
2711.76:155:58
2811.76:165:56
2911.66:175:55
3011.66:185:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.21 kWh/m².

For context, solar energy here swings from a low near 1.36 kWh/m² to a high of 6.34 kWh/m² in June across the year — September's 4.21 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.6Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.1Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.7Moderate
253.7Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Is September a good time to visit Ruse?

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

7.6
Sightseeing
1st-best month of the year
6.5
Beach & pool
4th-best month of the year

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

What to pack for Ruse in September

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

In September, Ruse sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Ruse in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ruse peaks around July 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 19UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr8Very high
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Ruse 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 Ruse is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ruse's WHO annual average of 20.1 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1925 µg/m³Dec 1216 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb21Moderate
Mar26Moderate
Apr23Moderate
May22Moderate
Jun22Moderate
Jul21Moderate
Aug19Moderate
Sep18Moderate
Oct18Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Ruse?

Ruse sits at 43.8°N, 26.0°E, 39 m above sea level, in Bulgaria. The nearest listed city is Giurgiu, 4.0 km away.

AlexandriaZimniceaSvishtovRazgradPopovoSector 4Olteniţa

Topography around Ruse

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

Within 3 km, the terrain around Ruse has only modest variations in elevation — a maximum elevation change of 143 m around an average of 41 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 163 m; within 80 km, significant variations in elevation — a maximum elevation change of 520 m.

The land around Ruse is covered by trees (33%) and artificial surfaces (32%) within 3 km, cropland (63%) within 16 km, and cropland (67%) and trees (20%) within 80 km.

3 km
143 m
16 km
163 m
80 km
520 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Giurgiu 4.0 km · Alexandria 52 km · Zimnicea 52 km · Svishtov 55 km · Razgrad 57 km · Popovo 60 km · Sector 4 60 km · Olteniţa 60 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 Ruse (43.8487°, 25.9534°, elevation 39 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).