Kalmiuskyi weather in September

In September, Kalmiuskyi sees average daytime highs of 20°C and overnight lows near 16°C, with 34 mm of rain across 5.6 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Kalmiuskyi's 3rd-clearest and 7th-windiest month. For the whole year in context, see Kalmiuskyi's year-round climate.

Daytime high
20°
4th warmest
Overnight low
16°
9th coldest
Rainfall
34 mm
5.6 wet days
Daylight
12 h 18 min
5:14 AM – 5:34 PM
Cloud cover
41%
3rd clearest
Wind
19 km/h
7th windiest
Solar energy
4.13 kWh/m²
Travel score
7.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 18°C by the end.

A typical September day in Kalmiuskyi reaches about 20°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, September runs about 6°C cooler than August and about 7°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12318
22318
32318
42318
52217
62217
72217
82217
92217
102117
112116
122116
132116
142116
152116
162016
172015
182015
192015
201915
211915
221914
231914
241914
251814
261814
271814
281813
291813
301713

How September really feels in Kalmiuskyi

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.

Kalmiuskyi weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°469.85.28.70.0
Feb / -2°387.64100.0
Mar / 428.92.511.60.4
Apr12° / 387.20.113.33.6
May20° / 15°417.8014.86.7
Jun24° / 19°437.8015.67.5
Jul27° / 22°295.2015.37.7
Aug26° / 21°324.50148.0
Sep20° / 16°345.6012.47.3
Oct13° / 10°376.4010.64.2
Nov / 4171.29.10.8
Dec / -1°468.53.48.40.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17525
27525
37426
47426
57426
67426
77426
87426
97426
107426
117426
127426
137327
147327
157228
167327
177228
187129
197129
207030
216931
226832
236733
246634
256535
266436
276238
286238
296139
306040

Chance of precipitation in September

Any precipitation

Kalmiuskyi gets around 34 mm of rain over 5.6 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 19% and peaks near 20% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
119
219
319
420
520
620
720
820
920
1020
1120
1220
1319
1419
1519
1619
1718
1818
1918
2018
2118
2218
2318
2418
2518
2618
2717
2817
2917
3017

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 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13832218
24032217
34231206
44431196
54530195
64730185
74830174
85029174
95228164
105328163
115427163
125527153
135626153
145726143
155925142
165925142
176124132
186223132
196323122
206422122
216422122
226621112
236720112
246720112
256919102
266919102
276919102
28711892
29711892
30721882

Wind in September

Winds average 19 km/h in September.

Across September, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2220light breeze
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920breezy
3020breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 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 102 minutes over September. Sunrise moves from 4:54 AM to 5:33 AM, and sunset from 6:05 PM to 5:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.24:546:05
213.14:556:03
313.14:576:01
413.04:585:59
513.04:595:57
612.95:015:55
712.85:025:53
812.85:035:51
912.75:055:49
1012.75:065:47
1112.65:075:45
1212.65:095:43
1312.55:105:40
1412.45:115:38
1512.45:135:36
1612.35:145:34
1712.35:165:32
1812.25:175:30
1912.25:185:28
2012.15:205:26
2112.05:215:24
2212.05:225:21
2311.95:245:19
2411.95:255:17
2511.85:265:15
2611.85:285:13
2711.75:295:11
2811.65:315:09
2911.65:325:07
3011.55:335:05

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.13 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 6.53 kWh/m² in July across the year — September's 4.13 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.0Bright
194.0Moderate
203.9Moderate
213.9Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.5Moderate
293.4Moderate
303.4Moderate
Planning a trip in September

Is September a good time to visit Kalmiuskyi?

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

7.3
Sightseeing
4th-best month of the year
4.0
Beach & pool
4th-best month of the year

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

What to pack for Kalmiuskyi in September

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

In September, Kalmiuskyi sees daytime highs around 20°C and nights near 16°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Kalmiuskyi in September

The nearest coast averages about 20°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in July at about 25°C and coldest in January near 4°C.

It's comfortable for a long swim from Jun 3 to Sep 13 — about 3.4 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan4Bracing
Feb4Bracing
Mar5Bracing
Apr9Bracing
May17Cool
Jun22Refreshing
Jul25Warm
Aug24Warm
Sep20Cool
Oct14Bracing
Nov8Bracing
Dec5Bracing

UV index in Kalmiuskyi 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 Kalmiuskyi peaks around July 10 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 10UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5High
May5Moderate
Jun8Very high
Jul8Very high
Aug6High
Sep5High
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Kalmiuskyi 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 Kalmiuskyi is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodMar 1615 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar16Moderate
Apr10Good
May10Good
Jun11Good
Jul13Moderate
Aug12Good
Sep10Good
Oct9Good
Nov9Good
Dec7Good
Location & terrain

Where is Kalmiuskyi?

Kalmiuskyi sits at 47.1°N, 37.5°E, 17 m above sea level, in Ukraine. The nearest listed city is Tsentralnyi, 1.0 km away.

Topography around Kalmiuskyi

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

Within 3 km, the terrain around Kalmiuskyi has only modest variations in elevation — a maximum elevation change of 91 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 175 m; within 80 km, significant variations in elevation — a maximum elevation change of 344 m.

The land around Kalmiuskyi is covered by artificial surfaces (51%) and trees (33%) within 3 km, cropland (41%) and water (28%) within 16 km, and cropland (52%) and water (34%) within 80 km.

3 km
91 m
16 km
175 m
80 km
344 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Tsentralnyi 1.0 km · Mariupol 2.0 km · Pravyi Bereh 3.0 km · Prymorskyi 6.0 km · Livoberezhnyi 8.0 km · Volnovakha 55 km · Berdyansk 70 km · Dokuchayevsk 72 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 Kalmiuskyi (47.1105°, 37.5438°, elevation 17 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).