Sonyachnyi weather in September

In September, Sonyachnyi sees average daytime highs of 21°C and overnight lows near 10°C, with 42 mm of rain across 7.1 wet days and about 12.4 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 18°C by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Sonyachnyi's 3rd-clearest and 8th-windiest month. For the whole year in context, see Sonyachnyi's year-round climate.

Daytime high
21°
5th warmest
Overnight low
10°
8th coldest
Rainfall
42 mm
7.1 wet days
Daylight
12 h 24 min
5:13 AM – 5:34 PM
Cloud cover
51%
3rd clearest
Wind
12 km/h
8th windiest
Solar energy
3.68 kWh/m²
Travel score
7.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 18°C by the end.

A typical September day in Sonyachnyi reaches about 21°C in the afternoon and slips back to 10°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 27°C. Set against its neighbours, September runs about 6°C cooler than August and about 8°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12413
22413
32413
42412
52312
62312
72312
82312
92211
102211
112211
122211
132211
142110
152110
162110
172110
182010
19209
20209
21209
22209
23199
24199
25199
26198
27188
28188
29188
30188

How September really feels in Sonyachnyi

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.

Sonyachnyi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -6°419.27.68.50.0
Feb-0° / -6°357.769.80.0
Mar / -2°419.54.311.60.6
Apr15° / 459.60.513.44.4
May21° / 11°529.30156.7
Jun26° / 15°5710.4015.96.8
Jul28° / 17°488.5015.56.6
Aug27° / 15°376.1014.27.2
Sep21° / 10°427.1012.47.0
Oct13° / 407.20.510.53.9
Nov / -1°377.42.590.4
Dec-0° / -5°428.75.88.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% 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 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36139
46139
56139
66040
76040
86040
96139
106139
116040
125941
135941
145941
155941
165842
175842
185644
195545
205446
215347
225248
235149
244951
254951
264753
274753
284654
294654
304654

Chance of precipitation in September

Any precipitation

Sonyachnyi gets around 42 mm of rain over 7.1 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 24% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
223
323
423
523
623
723
823
923
1023
1123
1223
1323
1423
1523
1623
1724
1824
1924
2024
2124
2224
2324
2425
2525
2625
2725
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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732061
2761950
3771850
4781840
5791740
6801730
7811630
8821530
9841420
10841420
11851320
12871210
13871210
14881110
15881110
16891010
17891010
18891010
1990910
2090910
2190910
2290910
2391810
2491810
2591810
2691810
2791810
2891810
2991810
3092710

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 4:52 AM to 5:34 AM, and sunset from 6:07 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.34:526:07
213.24:536:05
313.14:546:03
413.14:566:01
513.04:575:59
613.04:595:56
712.95:005:54
812.85:025:52
912.85:035:50
1012.75:055:48
1112.75:065:46
1212.65:085:43
1312.55:095:41
1412.55:105:39
1512.45:125:37
1612.45:135:34
1712.35:155:32
1812.25:165:30
1912.25:185:28
2012.15:195:26
2112.05:215:23
2212.05:225:21
2311.95:245:19
2411.95:255:17
2511.85:275:15
2611.75:285:12
2711.75:305:10
2811.65:315:08
2911.65:335:06
3011.55:345:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.68 kWh/m².

For context, solar energy here swings from a low near 0.72 kWh/m² to a high of 6.06 kWh/m² in June across the year — September's 3.68 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.1Bright
84.1Bright
94.0Bright
104.0Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.6Moderate
183.6Moderate
193.5Moderate
203.5Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.2Moderate
253.2Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
302.9Moderate
Planning a trip in September

Is September a good time to visit Sonyachnyi?

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

7.0
Sightseeing
2nd-best month of the year
4.2
Beach & pool
4th-best month of the year

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

What to pack for Sonyachnyi in September

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

In September, Sonyachnyi sees daytime highs around 21°C and nights near 10°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Sonyachnyi 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 Sonyachnyi peaks around June 21 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJun 21UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May5Moderate
Jun8Very high
Jul7Very high
Aug5High
Sep5High
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Sonyachnyi 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 Sonyachnyi is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodMar 1716 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar17Moderate
Apr11Good
May10Good
Jun11Good
Jul16Moderate
Aug14Moderate
Sep10Good
Oct9Good
Nov9Good
Dec8Good
Location & terrain

Where is Sonyachnyi?

Sonyachnyi sits at 48.7°N, 37.6°E, 168 m above sea level, in Ukraine. The nearest listed city is Sotsmisto, 2.0 km away.

Topography around Sonyachnyi

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

Within 3 km, the terrain around Sonyachnyi has only modest variations in elevation — a maximum elevation change of 131 m around an average of 133 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 177 m; within 80 km, significant variations in elevation — a maximum elevation change of 323 m.

The land around Sonyachnyi is covered by trees (45%) and artificial surfaces (27%) within 3 km, cropland (50%) and trees (24%) within 16 km, and cropland (58%) and trees (21%) within 80 km.

3 km
131 m
16 km
177 m
80 km
323 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Sotsmisto 2.0 km · Kramatorsk 2.0 km · Druzhkivka 13 km · Slovyansk 14 km · Kostyantynivka 23 km · Bakhmut 33 km · Lyman 33 km · Toretsk 41 km

Ukraine travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$5,866
2025
Happiness
4.7 / 10
World Happiness, 2025
Safe drinking water
88%
of population, 2024
Homicide rate
3.8
per 100k, 2021
Road deaths
10.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 526

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 Sonyachnyi (48.7228°, 37.5981°, elevation 168 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).