Hradec Králové weather in September

In September, Hradec Králové sees average daytime highs of 19°C and overnight lows near 10°C, with 59 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 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 25% 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 Hradec Králové's 4th-clearest and 9th-windiest month. For the whole year in context, see Hradec Králové's year-round climate.

Daytime high
19°
4th warmest
Overnight low
10°
9th coldest
Rainfall
59 mm
8.9 wet days
Daylight
12 h 24 min
5:40 AM – 6:02 PM
Cloud cover
61%
4th clearest
Wind
10 km/h
9th windiest
Solar energy
3.2 kWh/m²
Travel score
6.1
out of 10

Hradec Králové is statutory city in Hradec Králové District, Hradec Králové Region, Czechia.

Air quality
Moderate
PM2.5 14.9 µg/m³ · 2019
Density
857/km²
people per km²
Founded
1225

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 21°C in the first days to 17°C by the end.

A typical September day in Hradec Králové 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 13°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
22112
32112
42112
52111
62111
72011
82011
92011
102011
112011
122011
131910
141910
151910
161910
171910
181810
19189
20189
21189
22189
23189
24179
25179
26179
27179
28178
29168
30168

How September really feels in Hradec Králové

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.

Hradec Králové 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°4911.15.58.30.0
Feb / -2°388.54.79.70.0
Mar / 4910.82.911.51.4
Apr14° / 3790.613.54.1
May19° / 5911.1015.25.9
Jun22° / 12°6611.4016.16.3
Jul24° / 14°7411.7015.76.7
Aug24° / 14°659.8014.36.9
Sep19° / 10°598.9012.46.1
Oct13° / 479.40.210.53.5
Nov / 469.52.38.80.8
Dec / -1°5010.34.67.90.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24357
34357
44357
54258
64258
74258
84159
94159
104258
114258
124258
134258
144258
154258
164258
174258
184258
194159
204060
214159
224159
234060
244060
253961
263862
273862
283862
293763
303763

Chance of precipitation in September

Any precipitation

Hradec Králové gets around 59 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
432
532
632
732
832
931
1031
1130
1230
1329
1429
1529
1628
1728
1828
1928
2027
2127
2227
2327
2428
2528
2629
2729
2830
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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
170246
272235
373225
474224
575214
676204
777203
878193
979183
1080182
1181172
1282162
1383152
1484142
1584142
1686131
1787121
1888111
1989101
209091
219181
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 9 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
19calm
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 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 5:17 AM to 6:02 AM, and sunset from 6:36 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:176:36
213.35:186:34
313.25:206:32
413.15:216:30
513.15:236:27
613.05:246:25
712.95:266:23
812.95:276:20
912.85:296:18
1012.85:316:16
1112.75:326:14
1212.65:346:11
1312.65:356:09
1412.55:376:07
1512.45:386:04
1612.45:406:02
1712.35:416:00
1812.25:435:58
1912.25:455:55
2012.15:465:53
2112.05:485:51
2212.05:495:48
2311.95:515:46
2411.95:525:44
2511.85:545:41
2611.75:565:39
2711.75:575:37
2811.65:595:35
2911.56:005:32
3011.56:025:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.2 kWh/m².

For context, solar energy here swings from a low near 0.68 kWh/m² to a high of 5.51 kWh/m² in June across the year — September's 3.2 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
242.8Moderate
252.8Moderate
262.7Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Hradec Králové?

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

6.1
Sightseeing
4th-best month of the year
2.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Hradec Králové for sightseeing.

What to pack for Hradec Králové in September

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

In September, Hradec Králové 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 Hradec Králové 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 Hradec Králové peaks around June 20 at about 7 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7Very high
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Hradec Králové 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 Hradec Králové is worst in March — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Hradec Králové's WHO annual average of 14.9 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2218 µg/m³Dec 1012 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar18Moderate
Apr17Moderate
May16Moderate
Jun18Moderate
Jul16Moderate
Aug16Moderate
Sep14Moderate
Oct12Moderate
Nov12Good
Dec12Good
Location & terrain

Where is Hradec Králové?

Hradec Králové sits at 50.2°N, 15.8°E, 250 m above sea level, in Czechia. The nearest listed city is Pardubice, 19 km away.

ChrudimNáchodTrutnovJičínÚstí nad OrlicíKolín

Topography around Hradec Králové

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

Within 3 km, the terrain around Hradec Králové has only modest variations in elevation — a maximum elevation change of 39 m around an average of 234 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,431 m.

The land around Hradec Králové is covered by artificial surfaces (43%), trees (22%) and grassland (21%) within 3 km, cropland (51%) and trees (27%) within 16 km, and trees (43%) and cropland (37%) within 80 km.

3 km
39 m
16 km
137 m
80 km
1,431 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Pardubice 19 km · Dvůr Králové nad Labem 25 km · Chrudim 29 km · Náchod 33 km · Trutnov 40 km · Jičín 43 km · Ústí nad Orlicí 48 km · Kolín 49 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 Hradec Králové (50.2092°, 15.8328°, elevation 250 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).