Ostrava weather in June

In June, Ostrava sees average daytime highs of 21°C and overnight lows near 12°C, with 100 mm of rain across 13.6 wet days and about 16 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 22°C by the end. The sky is clear or mostly clear about 23% of the time in June, and the air most often feels dry.

Daylight stretches from about 15 h 48 min at the start of June to 16 h 06 min by month's end. Set against the rest of the year, June is Ostrava's 5th-clearest and 10th-windiest month. For the whole year in context, see Ostrava's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
12°
10th coldest
Rainfall
100 mm
13.6 wet days
Daylight
16 h 06 min
3:44 AM – 7:50 PM
Cloud cover
63%
5th clearest
Wind
10 km/h
10th windiest
Solar energy
5.32 kWh/m²
Travel score
5.9
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 June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 22°C by the end.

A typical June day in Ostrava reaches about 21°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, June runs about 3°C warmer than May and about 2°C cooler than July.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12010
22011
32011
42111
52111
62111
72111
82111
92111
102112
112112
122112
132112
142112
152212
162212
172212
182212
192212
202212
212212
222212
232212
242212
252212
262212
272213
282213
292213
302313

How June really feels in Ostrava

Once humidity and wind are folded in, June 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

June 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 June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-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 June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 22% of June, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24456
34456
44456
54456
64456
74357
84357
94357
104258
114357
124357
134357
144357
154159
164258
174258
184258
194258
204357
214357
224357
234555
244555
254654
264753
274852
284951
295050
305050

Chance of precipitation in June

Any precipitation

Ostrava gets around 100 mm of rain over 13.6 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 47% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
147
247
347
447
547
647
747
847
946
1046
1146
1245
1345
1445
1545
1645
1745
1845
1945
2045
2145
2244
2344
2444
2544
2644
2744
2844
2944
3043

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1732430
2712540
3692650
4682750
5672760
6652870
7632980
8632980
9622990
10613090
116030100
125930101
135830111
145830111
155730121
165730121
175729131
185729131
195828131
205828131
215827141
225827141
235727142
245627152
255627152
265727151
275727151
285627161
295528161
305528161

Wind in June

Winds average 10 km/h in June.

Across June, daily wind ranges from about 10 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
110calm
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 June

DaylightNight

Daylight runs from about 15 h 48 min at the start of June to 16 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over June. Sunrise moves from 3:51 AM to 3:48 AM, and sunset from 7:38 PM to 7:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
115.83:517:38
215.83:507:39
315.83:497:40
415.93:497:41
515.93:487:42
615.93:487:43
715.93:477:44
816.03:477:44
916.03:467:45
1016.03:467:46
1116.03:457:47
1216.03:457:47
1316.13:457:48
1416.13:457:49
1516.13:457:49
1616.13:447:50
1716.13:447:50
1816.13:447:51
1916.13:447:51
2016.13:447:51
2116.13:457:52
2216.13:457:52
2316.13:457:52
2416.13:457:52
2516.13:467:52
2616.13:467:53
2716.13:467:53
2816.13:477:53
2916.13:477:52
3016.13:487:52

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.32 kWh/m² — the sunniest month for solar.

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 — June's 5.32 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in June

Is June a good time to visit Ostrava?

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

5.9
Sightseeing
3rd-best month of the year
3.8
Beach & pool
3rd-best month of the year

June is a reasonable time to visit Ostrava for sightseeing.

What to pack for Ostrava in June

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

In June, Ostrava sees daytime highs around 21°C and nights near 12°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

UV index in Ostrava in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June 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
June 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).