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Czechia · 1991–2020

Best time to visit
Mladá Boleslav.

August leads for comfortable weather in Mladá Boleslav: typically 23.2°C by day, 11.4°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high23.2°C

Typical low11.4°C

Rain in August89 mm

Comfort

August

August · July · June

77climate match

Beach

August

August · July · June

39climate match

Outdoors

September

September · June · May

77climate match

The weakest month is January, scoring 5 against August’s 77 — days reach only 1.5°C, 22° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

51.5° / -4.1°

Feb

52.8° / -3.8°

Mar

57.5° / -1.2°

Apr

3713.8° / 2.3°

May

5318.5° / 6.4°

Jun

6621.3° / 9.6°

Jul

7623.6° / 11.6°

Aug

7723.2° / 11.4°

Sep

5818.2° / 7.9°

Oct

3412.5° / 4.7°

Nov

56.1° / 1.1°

Dec

51.7° / -2.7°

Monthly climate evidence for Mladá Boleslav — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.5°C	-4.1°C	75 mm	14.3	8 h 28	5	Strong coverage
February	2.8°C	-3.8°C	58 mm	11.3	9 h 58	5	Strong coverage
March	7.5°C	-1.2°C	63 mm	11.7	11 h 42	5	Good coverage
April	13.8°C	2.3°C	45 mm	8.6	13 h 42	37	Good coverage
May	18.5°C	6.4°C	82 mm	11	15 h 26	53	Good coverage
June	21.3°C	9.6°C	91 mm	11	16 h 24	66	Good coverage
July	23.6°C	11.6°C	104 mm	11.1	16 h 01	76	Good coverage
August	23.2°C	11.4°C	89 mm	9.5	14 h 30	77	Good coverage
September	18.2°C	7.9°C	69 mm	9.4	12 h 33	58	Good coverage
October	12.5°C	4.7°C	60 mm	9.7	10 h 37	34	Good coverage
November	6.1°C	1.1°C	66 mm	11.2	8 h 54	5	Good coverage
December	1.7°C	-2.7°C	72 mm	13.2	8 h 02	5	Good coverage

Records at LIBEREC, 1938–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	14.3°C10 Jan 2015	-27.2°C10 Jan 1940	40 mm12 Jan 2022	203 mm2019 · driest 7 mm in 1996	58
February	14.9°C24 Feb 2008	-26.1°C1 Feb 1940	70 mm2 Feb 2019	163 mm2019 · driest 3 mm in 1982	58
March	22.0°C21 Mar 1974	-20.0°C13 Mar 1942	70 mm20 Mar 2018	114 mm1998 · driest 5 mm in 1984	58
April	27.3°C29 Apr 2012	-11.1°C1 Apr 1996	28 mm15 Apr 2023	93 mm1997 · driest 1 mm in 2007	58
May	30.2°C30 May 2005	-5.0°C9 May 1941	67 mm29 May 1941	175 mm1978 · driest 11 mm in 1992	58
June	33.6°C28 Jun 1994	-2.0°C1 Jun 1977	87 mm24 Jun 1992	209 mm2013 · driest 9 mm in 2000	58
July	36.2°C31 Jul 1994	2.0°C3 Jul 1979	74 mm11 Jul 1993	337 mm2010 · driest 7 mm in 1997	58
August	35.5°C13 Aug 2003	1.0°C23 Aug 1976	99 mm8 Aug 2010	424 mm2010 · driest 7 mm in 1989	58
September	31.3°C6 Sep 2008	-2.4°C30 Sep 2013	62 mm14 Sep 2024	177 mm2010 · driest 9 mm in 1985	58
October	25.4°C1 Oct 2011	-8.8°C28 Oct 1997	38 mm30 Oct 2008	198 mm1974 · driest 0 mm in 1987	58
November	19.1°C5 Nov 2008	-16.0°C24 Nov 1975	106 mm7 Nov 1993	152 mm1993 · driest 1 mm in 2011	58
December	14.8°C31 Dec 2022	-23.1°C29 Dec 1996	90 mm12 Dec 2021	227 mm2021 · driest 9 mm in 2000	58

Typical days per month at LIBEREC, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	14	1
February	0	0	14	<1
March	0	0	13	1
April	<1	0	7	<1
May	3	0	1	3
June	7	1	<1	2
July	12	3	0	3
August	11	1	0	3
September	2	0	<1	2
October	0	0	4	2
November	0	0	7	1
December	0	0	13	1

How often, not how much — every day in LIBEREC’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	48%	5%	64%	-3.2–4.0°C
February	0%	43%	4%	52%	-1.5–6.1°C
March	<1%	38%	4%	48%	3.2–10.3°C
April	11%	33%	4%	43%	10.1–15.8°C
May	33%	36%	8%	46%	14.9–20.5°C
June	43%	40%	9%	55%	18.3–23.1°C
July	52%	40%	11%	57%	19.5–25.7°C
August	57%	34%	10%	48%	20.1–24.7°C
September	32%	34%	7%	37%	15.4–20.9°C
October	5%	34%	6%	47%	10.0–15.2°C
November	0%	43%	5%	53%	3.3–8.0°C
December	0%	47%	6%	67%	-1.1–4.4°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1940Each stripe is one year’s mean temperature against the 42-year average. Warmest: 2014. Coolest: 1940.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 3070544
NOAA station: EZM00011603 · LIBEREC
Station distance: 40.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 50.41°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from LIBEREC is what differs

Liberec→Jablonec nad Nisou→Jičín→Cieplice Śląskie Zdrój→Turnov→Vrchlabí→

Or put two places side by side: Mladá Boleslav vs Liberec

Best time to visitMladá Boleslav.

August

August

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Mladá Boleslav.

The whole year,
without the guesswork.

Nearby, measured,
and named.