Kralupy nad Vltavou weather in September

In September, Kralupy nad Vltavou sees average daytime highs of 19°C and overnight lows near 10°C, with 52 mm of rain across 8.9 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 17°C by the end. The sky is clear or mostly clear about 24% 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 Kralupy nad Vltavou's 4th-clearest and 9th-windiest month. For the whole year in context, see Kralupy nad Vltavou's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
9th coldest
Rainfall
52 mm
8.9 wet days
Daylight
12 h 24 min
5:46 AM – 6:08 PM
Cloud cover
62%
4th clearest
Wind
10 km/h
9th windiest
Solar energy
3.21 kWh/m²
Travel score
6.2
out of 10

Kralupy nad Vltavou is town in the Czech Republic.

Density
793/km²
people per km²
Founded
1253

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 22°C in the first days to 17°C by the end.

A typical September day in Kralupy nad Vltavou reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°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)
12212
22212
32212
42112
52112
62112
72111
82111
92111
102011
112011
122011
132010
142010
152010
161910
171910
181910
191910
20199
21199
22189
23189
24189
25189
26189
27179
28178
29178
30178

How September really feels in Kralupy nad Vltavou

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.

Kralupy nad Vltavou 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 / -2°349.34.28.30.0
Feb / -2°287.93.39.70.1
Mar / 3910.22.211.51.6
Apr14° / 358.80.413.54.2
May19° / 6112.1015.25.8
Jun22° / 12°7311.6016.16.3
Jul25° / 14°7712.5015.76.5
Aug25° / 14°6810.3014.36.8
Sep19° / 10°528.9012.46.2
Oct13° / 439.30.110.53.7
Nov / 398.91.28.80.9
Dec / -1°3893.77.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24456
34357
44456
54357
64357
74258
84357
94258
104357
114258
124357
134357
144258
154258
164258
174159
184060
194159
204060
214060
224060
233961
243961
253763
263763
273763
283565
293565
303565

Chance of precipitation in September

Any precipitation

Kralupy nad Vltavou gets around 52 mm of rain over 8.9 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
131
231
331
431
531
632
732
831
931
1031
1130
1230
1330
1429
1529
1629
1729
1829
1929
2029
2128
2228
2328
2428
2529
2629
2730
2831
2931
3032

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 (%)
173225
273225
375214
476204
577194
678193
779183
881172
981172
1082162
1183152
1284142
1385132
1486131
1587121
1688111
1789101
1889101
199091
209181
219280
229370
239370
249460
259460
269550
279550
289550
299640
309640

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 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2911calm
3011calm

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 5:23 AM to 6:08 AM, and sunset from 6:42 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:236:42
213.35:246:40
313.25:266:38
413.15:276:36
513.15:296:33
613.05:306:31
712.95:326:29
812.95:336:27
912.85:356:24
1012.85:376:22
1112.75:386:20
1212.65:406:17
1312.65:416:15
1412.55:436:13
1512.45:446:11
1612.45:466:08
1712.35:476:06
1812.25:496:04
1912.25:516:01
2012.15:525:59
2112.05:545:57
2212.05:555:54
2311.95:575:52
2411.95:595:50
2511.86:005:47
2611.76:025:45
2711.76:035:43
2811.66:055:41
2911.56:065:38
3011.56:085:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.21 kWh/m².

For context, solar energy here swings from a low near 0.73 kWh/m² to a high of 5.45 kWh/m² in June across the year — September's 3.21 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.2Moderate
173.2Moderate
183.1Moderate
193.1Moderate
203.0Moderate
213.0Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.7Moderate
282.7Moderate
292.6Moderate
302.6Moderate
Planning a trip in September

Is September a good time to visit Kralupy nad Vltavou?

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

6.2
Sightseeing
4th-best month of the year
3.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kralupy nad Vltavou for sightseeing.

What to pack for Kralupy nad Vltavou in September

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

In September, Kralupy nad Vltavou sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Kralupy nad Vltavou in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kralupy nad Vltavou peaks around June 21 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 21UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Kralupy nad Vltavou 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 Kralupy nad Vltavou is worst in April — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1022 µg/m³Dec 1515 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar21Moderate
Apr22Moderate
May19Moderate
Jun21Moderate
Jul18Moderate
Aug19Moderate
Sep19Moderate
Oct17Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Kralupy nad Vltavou?

Kralupy nad Vltavou sits at 50.2°N, 14.3°E, 179 m above sea level, in Czechia. The nearest listed city is Bohnice, 14 km away.

Topography around Kralupy nad Vltavou

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

Within 3 km, the terrain around Kralupy nad Vltavou has only modest variations in elevation — a maximum elevation change of 123 m around an average of 213 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 294 m; within 80 km, large variations in elevation — a maximum elevation change of 961 m.

The land around Kralupy nad Vltavou is covered by cropland (39%) and trees (29%) within 3 km, cropland (63%) within 16 km, and trees (43%) and cropland (37%) within 80 km.

3 km
123 m
16 km
294 m
80 km
961 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Bohnice 14 km · Neratovice 15 km · Slaný 16 km · Kobylisy 16 km · Dejvice 17 km · Mělník 17 km · Holešovice 18 km · Kladno 18 km

Czechia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$35,917
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
5.9
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 582
Religion
none 48%believers unaffiliated with a religious society 9%Roman Catholic 7%other believers belonging to a church or religious society 6%

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 Kralupy nad Vltavou (50.2411°, 14.3115°, elevation 179 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).