Ostrava weather in July

In July, Ostrava sees average daytime highs of 24°C and overnight lows near 14°C, with 115 mm of rain across 14.3 wet days and about 15.7 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 24°C by the end. The sky is clear or mostly clear about 30% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 06 min at the start of July to 15 h 06 min by month's end. Set against the rest of the year, July is Ostrava's 2nd-clearest and 11th-windiest month. For the whole year in context, see Ostrava's year-round climate.

Daytime high
24°
1st warmest
Overnight low
14°
12th coldest
Rainfall
115 mm
14.3 wet days
Daylight
15 h 42 min
4:01 AM – 7:44 PM
Cloud cover
57%
2nd clearest
Wind
10 km/h
11th windiest
Solar energy
5.22 kWh/m²
Travel score
6.3
out of 10

Ostrava is city in Czechia.

Air quality
Elevated
PM2.5 20.3 µg/m³ · 2019
Density
1,306/km²
people per km²
Founded
1267

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 24°C by the end.

A typical July day in Ostrava 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 18°C and 29°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52313
62313
72313
82313
92313
102313
112313
122313
132313
142313
152314
162314
172414
182414
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292514
302514
312514

How July really feels in Ostrava

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ostrava weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°4711.18.48.40.0
Feb / -3°4510.87.89.70.0
Mar / -0°5512.14.711.51.1
Apr14° / 5710.81.713.53.8
May18° / 90140.115.15.4
Jun21° / 12°10013.60165.9
Jul24° / 14°11514.3015.76.3
Aug24° / 13°8511.7014.26.7
Sep19° / 10°8211012.45.7
Oct13° / 5910.30.410.53.5
Nov / 5310.53.58.81.0
Dec / -2°4911.1780.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
25149
35149
45149
55149
65050
75050
84951
94951
104951
114852
124852
134852
144951
154951
164951
174951
184951
194951
205050
215149
225149
235248
245248
255248
265347
275347
285446
295446
305446
315545

Chance of precipitation in July

Any precipitation

Ostrava gets around 115 mm of rain over 14.3 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
244
344
444
545
645
746
846
947
1047
1148
1248
1348
1448
1548
1648
1748
1848
1948
2047
2147
2246
2346
2445
2544
2644
2743
2843
2943
3042
3142

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the dry band about 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15528161
25329171
35329171
45230171
55130181
65031181
75031181
84932191
94832191
104733191
114633201
124534201
134434201
144335211
154235212
164136212
174037222
183937222
193838222
203739222
213639222
223540232
233440232
243441242
253341242
263241252
273141252
283141262
293042262
303042272
312942272

Wind in July

Winds average 10 km/h in July.

Across July, 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.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 06 min at the start of July to 15 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 3:48 AM to 4:20 AM, and sunset from 7:52 PM to 7:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.13:487:52
216.13:497:52
316.03:497:52
416.03:507:51
516.03:517:51
616.03:527:51
716.03:527:50
815.93:537:50
915.93:547:49
1015.93:557:49
1115.93:567:48
1215.83:577:47
1315.83:587:47
1415.83:597:46
1515.84:007:45
1615.74:017:44
1715.74:027:43
1815.74:037:42
1915.64:047:41
2015.64:057:40
2115.54:077:39
2215.54:087:38
2315.54:097:37
2415.44:107:36
2515.44:127:34
2615.34:137:33
2715.34:147:32
2815.24:167:31
2915.24:177:29
3015.24:187:28
3115.14:207:26

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.22 kWh/m².

For context, solar energy here swings from a low near 0.75 kWh/m² to a high of 5.32 kWh/m² in June across the year — July's 5.22 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in July

Is July a good time to visit Ostrava?

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

6.3
Sightseeing
2nd-best month of the year
5.1
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Ostrava for sightseeing.

What to pack for Ostrava in July

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

In July, Ostrava sees daytime highs around 24°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

UV index in Ostrava in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ostrava 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 19 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJun 20UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May6High
Jun7Very high
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Ostrava in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Ostrava is worst in June — around 24 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ostrava's WHO annual average of 20.3 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1624 µg/m³Dec 1415 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar23Moderate
Apr23Moderate
May23Moderate
Jun24Moderate
Jul23Moderate
Aug23Moderate
Sep20Moderate
Oct17Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Ostrava?

Ostrava sits at 49.8°N, 18.3°E, 211 m above sea level, in Czechia. The nearest listed city is Bohumín, 9.0 km away.

Topography around Ostrava

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

Within 3 km, the terrain around Ostrava has only modest variations in elevation — a maximum elevation change of 118 m around an average of 226 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 216 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,334 m.

The land around Ostrava is covered by artificial surfaces (49%) and trees (43%) within 3 km, trees (43%) and cropland (28%) within 16 km, and trees (50%) and cropland (29%) within 80 km.

3 km
118 m
16 km
216 m
80 km
1,334 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Bohumín 9.0 km · Starý Bohumín 10 km · Orlová 11 km · Havířov 13 km · Frýdek-Místek 18 km · Karviná 19 km · Wodzisław Śląski 23 km · Jastrzębie Zdrój 25 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 Ostrava (49.8347°, 18.282°, elevation 211 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).