Mladá Boleslav weather in April

In April, Mladá Boleslav sees average daytime highs of 14°C and overnight lows near 4°C, with 38 mm of precipitation across 9 wet days and about 13.5 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 11°C in the first days to 16°C by the end. The sky is clear or mostly clear about 25% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of April to 14 h 24 min by month's end. Set against the rest of the year, April is Mladá Boleslav's 3rd-clearest and 5th-windiest month. For the whole year in context, see Mladá Boleslav's year-round climate.

Daytime high
14°
6th warmest
Overnight low
6th coldest
Precipitation
38 mm
9 wet days
Daylight
13 h 30 min
5:15 AM – 6:46 PM
Cloud cover
61%
3rd clearest
Wind
11 km/h
5th windiest
Solar energy
4.44 kWh/m²
Travel score
3.9
out of 10

Mladá Boleslav is town in Central Bohemian Region, Czech Republic.

Air quality
Elevated
PM2.5 15.6 µg/m³ · 2019
Density
1,511/km²
people per km²
Founded
1130

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 11°C in the first days to 16°C by the end.

A typical April day in Mladá Boleslav reaches about 14°C in the afternoon and slips back to 4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 20°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°20°151015202530
Avg high (°C)Avg low (°C)
1112
2112
3112
4113
5113
6123
7123
8123
9123
10123
11123
12123
13134
14134
15134
16134
17144
18144
19145
20155
21155
22155
23156
24166
25166
26166
27166
28167
29177
30177

How April really feels in Mladá Boleslav

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 8 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
8
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Mladá Boleslav weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°5211.56.98.30.0
Feb / -2°429.45.49.70.0
Mar / 5211.13.611.51.2
Apr14° / 3890.813.53.9
May18° / 5811.60.115.25.7
Jun22° / 12°6711.5016.16.2
Jul24° / 14°7812.6015.86.5
Aug24° / 14°6610.4014.36.8
Sep19° / 10°589012.46.0
Oct13° / 509.80.210.53.3
Nov / 489.92.48.80.7
Dec / -2°5211.15.67.90.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24060
34060
43961
53961
63961
73862
83862
93961
103961
113862
123961
133961
144159
154159
164357
174456
184654
194654
204654
214753
224852
234852
244852
254753
264852
274753
284654
294555
304456

Chance of precipitation in April

Any precipitationSnow

Mladá Boleslav gets around 38 mm of rain and snow over 9 wet days in April, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 35% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1326
2316
3316
4305
5305
6305
7305
8304
9304
10314
11304
12304
13303
14303
15303
16303
17303
18302
19302
20302
21302
22301
23311
24311
25321
26321
27330
28340
29350
30350

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 36 min at the start of April to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over April. Sunrise moves from 5:48 AM to 4:47 AM, and sunset from 6:22 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:486:22
212.65:466:24
312.75:436:25
412.85:416:27
512.85:396:29
612.95:376:30
713.05:356:32
813.05:326:33
913.15:306:35
1013.15:286:37
1113.25:266:38
1213.35:236:40
1313.35:216:42
1413.45:196:43
1513.55:176:45
1613.55:156:46
1713.65:136:48
1813.75:116:50
1913.75:086:51
2013.85:066:53
2113.85:046:54
2213.95:026:56
2314.05:006:58
2414.04:586:59
2514.14:567:01
2614.14:547:03
2714.24:527:04
2814.34:507:06
2914.34:487:07
3014.44:477:09

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.44 kWh/m².

For context, solar energy here swings from a low near 0.7 kWh/m² to a high of 5.41 kWh/m² in June across the year — April's 4.44 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.8Moderate
43.8Moderate
53.9Moderate
63.9Moderate
74.0Moderate
84.0Bright
94.0Bright
104.1Bright
114.2Bright
124.2Bright
134.3Bright
144.3Bright
154.4Bright
164.4Bright
174.5Bright
184.6Bright
194.6Bright
204.7Bright
214.7Bright
224.8Bright
234.8Bright
244.8Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in April

Is April a good time to visit Mladá Boleslav?

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

3.9
Sightseeing
6th-best month of the year
0.2
Beach & pool
6th-best month of the year

April is a weaker month for outdoor sightseeing in Mladá Boleslav.

What to pack for Mladá Boleslav in April

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

In April, Mladá Boleslav sees daytime highs around 14°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Mladá Boleslav in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Mladá Boleslav 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
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Mladá Boleslav in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mladá Boleslav is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Mladá Boleslav's WHO annual average of 15.6 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2319 µg/m³Dec 1112 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar19Moderate
Apr18Moderate
May17Moderate
Jun18Moderate
Jul16Moderate
Aug17Moderate
Sep15Moderate
Oct13Moderate
Nov12Moderate
Dec12Moderate
Location & terrain

Where is Mladá Boleslav?

Mladá Boleslav sits at 50.4°N, 14.9°E, 241 m above sea level, in Czechia. The nearest listed city is Brandýs nad Labem-Stará Boleslav, 30 km away.

Brandýs nad Labem-Stará BoleslavMělníkJičínNeratovicePoděbradyJablonec nad NisouČeská LípaLiberec

Topography around Mladá Boleslav

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

Within 3 km, the terrain around Mladá Boleslav has only modest variations in elevation — a maximum elevation change of 171 m around an average of 238 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 222 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,573 m.

The land around Mladá Boleslav is covered by artificial surfaces (31%), cropland (29%) and trees (25%) within 3 km, cropland (53%) and trees (32%) within 16 km, and trees (42%) and cropland (37%) within 80 km.

3 km
171 m
16 km
222 m
80 km
1,573 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Brandýs nad Labem-Stará Boleslav 30 km · Mělník 31 km · Jičín 32 km · Neratovice 32 km · Poděbrady 34 km · Jablonec nad Nisou 40 km · Česká Lípa 40 km · Liberec 41 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 Mladá Boleslav (50.4113°, 14.9032°, elevation 241 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).