Climate and average weather in Bojnice

In Bojnice, the summers are warm, showery, and partly cloudy and the winters are very cold, snowy, and mostly cloudy.

Best: mid May to late September

Over the course of the year, the temperature in Bojnice typically varies from -5°C to 24°C, and is rarely below -15°C or above 30°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Bojnice for warm-weather activities is from mid May to late September.

Hottest
Jul
24°
Coldest
Jan
-5°
Wettest
Jul
94 mm
Driest
Feb
47 mm
Rain / yr
789 mm
131 wet days
Daylight
8.0–16.0 h
shortest–longest
Elevation
0 m
48.8°N
Clearest
Aug
52% cloud

Bojnice is town in Slovakia.

Density
252/km²
people per km²
Founded
1113

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

Bojnice weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Bojnice, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.8 months, from May 21 to September 14, with daily high temperatures above 19°C. The hottest month of the year in Bojnice is July, with an average high of 24°C and low of 13°C.

The cool season lasts 3.3 months, from November 22 to March 1, with daily high temperatures below 5°C. The coldest month of the year in Bojnice is January, with an average low of -5°C and high of 1°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 11°C) in August.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1-5
Feb3-4
Mar80
Apr144
May198
Jun2212
Jul2413
Aug2413
Sep199
Oct135
Nov71
Dec2-3

How hot and cold Bojnice really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -9°C (around January 28), with roughly 153 freezing days a year (feels-like at or below 0°C), worst in January.

-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan11-8-5
Feb33-7-4
Mar88-40
Apr141414
May191978
Jun22221112
Jul24241313
Aug24241313
Sep191989
Oct131335
Nov77-11
Dec22-6-3

Average hourly temperature in Bojnice

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 24°C, and coldest before dawn in January, near -5°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Bojnice weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°5110.47.78.50.0
Feb / -4°479.76.49.80.0
Mar / -1°5210.53.411.61.4
Apr14° / 559.9113.44.2
May19° / 8713.60155.6
Jun22° / 12°9012.8015.96.2
Jul24° / 13°9412.7015.56.6
Aug24° / 13°8011.3014.26.8
Sep19° / 7510.4012.45.9
Oct13° / 579.40.410.53.6
Nov / 549.93.290.9
Dec / -3°48105.68.10.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Bojnice gets about 789 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.6 months, from around Apr 27 to Sep 14, peaking in June at about 45% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 22.

July is the wettest month by volume, with 94 mm over about 13 wet days; February is the driest, with 47 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 3 · 45%Oct 22 · 28%
Rain on a day (%)Rain days
Jan3310
Feb3510
Mar3311
Apr3410
May4314
Jun4313
Jul4013
Aug3711
Sep3510
Oct309
Nov3310
Dec3210

Monthly rainfall

Over a full year, Bojnice collects about 789 mm of rain across 131 wet days — roughly 66 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 94 mm, while February is the driest at just 47 mm. The three wettest months alone bring about 34% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec514752558790948075575448
Rainfall (mm)Rain daysSnow days
Jan51108
Feb47106
Mar52113
Apr55101
May87140
Jun90130
Jul94130
Aug80110
Sep75100
Oct5790
Nov54103
Dec48106

Snow in Bojnice

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Bojnice averages about 28 snowy days a year. Snow season runs roughly Oct 21 to Apr 21 — about 6 months.

January is snowiest, with roughly 7 days of snow and an estimated 30 cm of snowfall. Over the year that adds up to an estimated 114 cm of snow.

0246810JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonJan 27
Snow daysSnowfall (cm)
Jan830
Feb632
Mar314
Apr13
May00
Jun00
Jul00
Aug00
Sep00
Oct03
Nov311
Dec622

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Bojnice, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around April 12 and lasts for 6.0 months, ending around October 11. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 60% of the time on average.

The cloudier part of the year begins around October 12 and lasts for 5.6 months, ending around March 29. The cloudiest month is December, when it is overcast or mostly cloudy 76% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 4 · 62%Nov 29 · 22%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2971
Feb3169
Mar3763
Apr4456
May4753
Jun4852
Jul5644
Aug6040
Sep4753
Oct4060
Nov2773
Dec2476

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 20, brings about 16 hours of light; the shortest, around December 20, only 8 hours — a swing of roughly 8 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.57:414:09
Feb9.87:054:56
Mar11.66:095:42
Apr13.45:036:29
May15.04:117:13
Jun15.93:487:44
Jul15.54:047:38
Aug14.24:446:55
Sep12.45:295:51
Oct10.56:154:47
Nov9.07:043:58
Dec8.17:403:44

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Bojnice averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 12 days.

The sunnier stretch runs 6.3 months, from around Apr 12 to Oct 20. The sunniest month is August, with roughly 11 sunny days (mixed).

The greyest month is November, down near 5 sunny days — about 58% fewer than the August peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 212 daysNov 293 days
Sunny daysSky
Jan5Gloomy
Feb5Gloomy
Mar7Gloomy
Apr8Mixed
May8Gloomy
Jun8Mixed
Jul10Mixed
Aug11Mixed
Sep9Mixed
Oct8Gloomy
Nov5Gloomy
Dec4Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Bojnice, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.2 months, from around May 31 to September 5. The muggiest month is July, when the air feels humid, muggy or worse about 22% of the time.

The most comfortable stretch runs from around September 6 to May 30, and May is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMay 5 · 100%Jul 30 · 71%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May891010
Jun5830121
Jul4236202
Aug4240181
Sep801820
Oct98200
Nov100000
Dec100000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Bojnice is steady company: average speeds sit near 8 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeMar 17 · 9 km/hAug 15 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb9calm
Mar9calm
Apr9calm
May9calm
Jun8calm
Jul8calm
Aug7calm
Sep8calm
Oct8calm
Nov8calm
Dec8calm

Best time to visit Bojnice

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Bojnice throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, Bojnice is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Bojnice for general outdoor tourist activities is from mid May to late September, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 17 · 6.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar1.4poor
Apr4.1fair
May5.6good
Jun6.2good
Jul6.6good
Aug6.7good
Sep5.8good
Oct3.6fair
Nov1.0poor
Dec0.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Bojnice for hot-weather activities is from late June to late August, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 5 · 6.0

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Bojnice, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 24°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 1°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Bojnice sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

UV index (midday) in Bojnice by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Bojnice peaks around July 12 at about 8 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 12UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Average hourly UV index in Bojnice

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 4 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar3.50
Apr60
May70
Jun84
Jul84
Aug72
Sep4.50
Oct00
Nov00
Dec00

Air quality in Bojnice by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Bojnice is worst in June — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1815 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar14Moderate
Apr14Moderate
May14Moderate
Jun15Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct10Good
Nov10Good
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Bojnice typically lasts about 250 days, from around March 21 to November 25 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 21 to October 12.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2150%Apr 2190%Oct 1290%Nov 2550%
Frost-free chance (%)Frost nights
Jan2031
Feb2428
Mar4631
Apr8422
May990
Jun1000
Jul1000
Aug1000
Sep990
Oct8720
Nov6330
Dec2831

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Bojnice banks about 955 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02505007501,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr10
May102
Jun202
Jul264
Aug257
Sep114
Oct7
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Bojnice receives about 3.3 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.8 and 5.7 kWh/m².

The brighter stretch of the year lasts 6.0 months, from around Mar 19 to Sep 17. The brightest month is July, averaging about 5.5 kWh/m² (bright).

The dimmest month is December, down near 0.8 kWh/m² — roughly 86% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 15.7 kWhDec 170.8 kWh
Solar energy (kWh/m²)Level
Jan1.0Dim
Feb1.9Dim
Mar3.1Moderate
Apr4.6Bright
May5.4Bright
Jun5.7Bright
Jul5.5Bright
Aug4.9Bright
Sep3.4Moderate
Oct2.0Moderate
Nov1.1Dim
Dec0.8Dim

Where is Bojnice?

Bojnice sits at 48.8°N, 18.6°E, 0 m above sea level, in Slovakia. The nearest listed city is Prievidza, 3.0 km away.

Bánovce nad BebravouŽiar nad HronomDubnica nad VáhomRajecke TeplicePovažská Bystrica

Topography around Bojnice

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

Within 3 km, the terrain around Bojnice has significant variations in elevation — a maximum elevation change of 357 m around an average of 331 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 958 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Bojnice is covered by trees (39%) and cropland (27%) within 3 km, trees (68%) within 16 km, and trees (61%) and cropland (23%) within 80 km.

3 km
357 m
16 km
958 m
80 km
1,895 m
treesgrasslandcroplandartificial surfaces
Nearby: Prievidza 3.0 km · Handlová 14 km · Partizánske 23 km · Bánovce nad Bebravou 25 km · Žiar nad Hronom 29 km · Dubnica nad Váhom 36 km · Rajecke Teplice 39 km · Považská Bystrica 39 km

Slovakia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$28,544
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
6.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 606
Religion
Roman Catholic 56%none 24%Evangelical Church of the Augsburg Confession 5%Greek Catholic 4%

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 Bojnice (48.7851°, 18.5864°, elevation 0 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).