Cernavodă weather in September

In September, Cernavodă sees average daytime highs of 24°C and overnight lows near 14°C, with 49 mm of rain across 6.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 50% 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 Cernavodă's 3rd-clearest and 8th-windiest month. For the whole year in context, see Cernavodă's year-round climate.

Daytime high
24°
4th warmest
Overnight low
14°
9th coldest
Rainfall
49 mm
6.1 wet days
Daylight
12 h 18 min
5:53 AM – 6:11 PM
Cloud cover
45%
3rd clearest
Wind
11 km/h
8th windiest
Solar energy
4.13 kWh/m²
Travel score
7.6
out of 10

Cernavodă is locality in Constanța County, Romania.

Founded
1417

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 26°C in the first days to 22°C by the end.

A typical September day in Cernavodă 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 19°C and 29°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12716
22716
32616
42616
52615
62615
72615
82515
92515
102515
112515
122514
132514
142414
152414
162414
172414
182414
192414
202313
212313
222313
232313
242313
252213
262213
272213
282212
292212
302112

How September really feels in Cernavodă

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.

Cernavodă weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°396.73.89.10.0
Feb / -1°335.82.810.20.6
Mar11° / 448.41.711.62.8
Apr16° / 418.40.213.25.3
May22° / 12°539.3014.66.9
Jun27° / 17°619.6015.36.8
Jul29° / 18°427.20156.3
Aug29° / 18°345.4013.86.5
Sep24° / 14°496.1012.37.6
Oct18° / 446010.86.1
Nov11° / 396.20.99.43.0
Dec / -1°427.12.78.70.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% 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 (%)
17624
27624
37525
47525
57525
67426
77426
87426
97327
107327
117327
127228
137228
147228
157129
167030
176832
186832
196733
206634
216436
226337
236238
246139
256040
265842
275743
285743
295644
305545

Chance of precipitation in September

Any precipitation

Cernavodă gets around 49 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 (%)
119
219
319
418
518
618
718
818
918
1018
1118
1218
1318
1418
1519
1619
1720
1820
1921
2021
2121
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 51% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13233277
23533266
33733256
43933235
54133224
64233213
74433203
84533192
94633192
104733182
114833172
124933172
134933162
145033162
155132152
165231152
175231152
185330152
195429152
205528152
215627152
225726152
235825152
246123142
256222142
266321142
276420142
286520141
296619141
306718141

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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 5:35 AM to 6:10 AM, and sunset from 6:40 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:356:40
213.05:366:38
313.05:386:36
412.95:396:34
512.95:406:32
612.85:416:31
712.85:426:29
812.75:446:27
912.75:456:25
1012.65:466:23
1112.65:476:21
1212.55:486:19
1312.55:506:17
1412.45:516:15
1512.45:526:13
1612.35:536:11
1712.25:546:09
1812.25:566:07
1912.15:576:05
2012.15:586:03
2112.05:596:02
2212.06:006:00
2311.96:025:58
2411.96:035:56
2511.86:045:54
2611.86:055:52
2711.76:065:50
2811.76:085:48
2911.66:095:46
3011.66:105:44

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 1.28 kWh/m² to a high of 6.38 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
64.7Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.1Bright
174.1Bright
184.0Bright
194.0Moderate
203.9Moderate
213.9Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Cernavodă?

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
6.4
Beach & pool
4th-best month of the year

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

What to pack for Cernavodă in September

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

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

light clothes

Sea temperature near Cernavodă in September

The nearest coast averages about 22°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 47 km away) is warmest in August at about 25°C and coldest in February near 5°C.

It's comfortable for a long swim from Jun 12 to Sep 28 — about 3.6 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar6Bracing
Apr10Bracing
May16Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep22Refreshing
Oct18Cool
Nov13Bracing
Dec9Bracing

UV index in Cernavodă 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 Cernavodă peaks around July 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 18UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr7Very high
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Cernavodă?

Cernavodă sits at 44.3°N, 28.0°E, 15 m above sea level, in Romania. The nearest listed city is Feteşti, 17 km away.

NăvodariConstanțaSloboziaSilistraMangalia

Topography around Cernavodă

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

Within 3 km, the terrain around Cernavodă has only modest variations in elevation — a maximum elevation change of 100 m around an average of 36 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 154 m; within 80 km, significant variations in elevation — a maximum elevation change of 402 m.

The land around Cernavodă is covered by trees (46%) within 3 km, cropland (68%) within 16 km, and cropland (66%) within 80 km.

3 km
100 m
16 km
154 m
80 km
402 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Feteşti 17 km · Fetești-Gară 19 km · Medgidia 22 km · Năvodari 45 km · Constanța 51 km · Slobozia 59 km · Silistra 66 km · Mangalia 73 km

Romania travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 44% of US
price level, 2025
GDP per capita
$22,538
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
82%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
10.3
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 605
Religion
Romanian Orthodox 85%other 5%Roman Catholic 5%Reformed 3%

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 Cernavodă (44.3396°, 28.0327°, elevation 15 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).