Jihlava weather in September

In September, Jihlava sees average daytime highs of 17°C and overnight lows near 9°C, with 71 mm of rain across 10.6 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 19°C in the first days to 15°C by the end. The sky is clear or mostly clear about 23% 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 Jihlava's 4th-clearest and 9th-windiest month. For the whole year in context, see Jihlava's year-round climate.

Daytime high
17°
4th warmest
Overnight low
9th coldest
Rainfall
71 mm
10.6 wet days
Daylight
12 h 24 min
5:41 AM – 6:03 PM
Cloud cover
63%
4th clearest
Wind
12 km/h
9th windiest
Solar energy
3.23 kWh/m²
Travel score
5.3
out of 10
Air quality
Moderate
PM2.5 13.9 µg/m³ · 2019

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 19°C in the first days to 15°C by the end.

A typical September day in Jihlava reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 23°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)
12011
21911
31911
41911
51910
61910
71810
81810
91810
101810
111810
121810
13189
14179
15179
16179
17179
18179
19169
20168
21168
22168
23168
24168
25168
26158
27158
28158
29157
30157

How September really feels in Jihlava

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.

Jihlava 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 / -4°4610.97.78.40.0
Feb / -4°389.26.69.80.0
Mar / -0°54125.511.50.7
Apr12° / 4910.91.913.43.2
May17° / 7714.1015.14.9
Jun20° / 11°8613.60165.7
Jul22° / 13°9813.7015.66.2
Aug22° / 13°8211.9014.26.4
Sep17° / 7110.6012.45.3
Oct11° / 489.40.610.52.8
Nov / 459.73.68.90.4
Dec / -3°4710.36.880.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34357
44258
54258
64258
74258
84258
94258
104159
114159
124258
134159
144060
154060
163961
173961
183961
193961
203862
213763
223763
233763
243763
253664
263664
273664
283664
293565
303565

Chance of precipitation in September

Any precipitation

Jihlava gets around 71 mm of rain over 10.6 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 36% and peaks near 39% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1138
1238
1337
1437
1536
1636
1735
1835
1934
2033
2133
2232
2331
2431
2531
2631
2731
2832
2932
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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
175205
277194
378193
479183
580182
681172
782171
882171
983161
1083161
1185150
1285150
1386140
1487130
1587130
1688120
1789110
1890100
199190
209280
219370
229460
239460
249550
259640
269640
279730
289730
299820
309820

Wind in September

Winds average 12 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
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
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 5:19 AM to 6:02 AM, and sunset from 6:36 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:196:36
213.25:206:34
313.25:226:32
413.15:236:30
513.05:256:27
613.05:266:25
712.95:286:23
812.95:296:21
912.85:316:18
1012.75:326:16
1112.75:346:14
1212.65:356:12
1312.55:376:10
1412.55:386:07
1512.45:406:05
1612.45:416:03
1712.35:436:01
1812.25:445:58
1912.25:465:56
2012.15:475:54
2112.05:495:52
2212.05:505:49
2311.95:525:47
2411.95:535:45
2511.85:555:43
2611.75:565:40
2711.75:585:38
2811.65:595:36
2911.56:015:34
3011.56:025:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.23 kWh/m².

For context, solar energy here swings from a low near 0.77 kWh/m² to a high of 5.42 kWh/m² in June across the year — September's 3.23 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
83.6Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.3Moderate
153.3Moderate
163.2Moderate
173.2Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.7Moderate
292.6Moderate
302.6Moderate
Planning a trip in September

Is September a good time to visit Jihlava?

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

5.3
Sightseeing
4th-best month of the year
1.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Jihlava for sightseeing.

What to pack for Jihlava in September

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

In September, Jihlava sees daytime highs around 17°C and nights near 9°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Jihlava 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 Jihlava peaks around June 22 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 22UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5High
May6High
Jun8Very high
Jul7Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Jihlava 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 Jihlava is worst in June — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Jihlava's WHO annual average of 13.9 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJun 1517 µg/m³Dec 119 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb13Moderate
Mar17Moderate
Apr17Moderate
May16Moderate
Jun17Moderate
Jul16Moderate
Aug15Moderate
Sep13Moderate
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Jihlava?

Jihlava sits at 49.4°N, 15.6°E, 523 m above sea level, in Czechia. The nearest listed city is Havlíčkův Brod, 23 km away.

TřebíčŽďár nad SázavouNové Město na MoravěJindřichův HradecChrudimKutna Hora

Topography around Jihlava

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

Within 3 km, the terrain around Jihlava has only modest variations in elevation — a maximum elevation change of 154 m around an average of 527 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 355 m; within 80 km, large variations in elevation — a maximum elevation change of 660 m.

The land around Jihlava is covered by cropland (33%), artificial surfaces (28%) and trees (25%) within 3 km, cropland (40%), trees (33%) and grassland (24%) within 16 km, and cropland (45%) and trees (38%) within 80 km.

3 km
154 m
16 km
355 m
80 km
660 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Havlíčkův Brod 23 km · Pelhřimov 27 km · Třebíč 29 km · Žďár nad Sázavou 31 km · Nové Město na Moravě 39 km · Jindřichův Hradec 51 km · Chrudim 63 km · Kutna Hora 66 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 Jihlava (49.3961°, 15.5912°, elevation 523 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).