Climate and average weather in Băicoi

In Băicoi, the summers are warm, showery, and mostly clear and the winters are cold, snowy, and partly cloudy.

Best: early June to early October

Over the course of the year, the temperature in Băicoi typically varies from -4°C to 26°C, and is rarely below -12°C or above 31°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Băicoi for warm-weather activities is from early June to early October.

Hottest
Aug
26°
Coldest
Jan
-4°
Wettest
Jun
107 mm
Driest
Feb
38 mm
Rain / yr
772 mm
121 wet days
Daylight
8.6–15.4 h
shortest–longest
Elevation
312 m
45.0°N
Clearest
Aug
40% cloud

Băicoi is locality in Prahova County, Romania.

Founded
1543

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

Băicoi 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 early June to early October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.0 months, from May 21 to September 19, with daily high temperatures above 21°C. The hottest month of the year in Băicoi is August, with an average high of 26°C and low of 15°C.

The cool season lasts 3.3 months, from November 22 to February 28, with daily high temperatures below 7°C. The coldest month of the year in Băicoi is January, with an average low of -4°C and high of 2°C.

Days typically run about 9°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)
Jan2-4
Feb5-3
Mar101
Apr155
May2010
Jun2414
Jul2615
Aug2615
Sep2211
Oct156
Nov92
Dec3-3

How hot and cold Băicoi 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 -8°C (around January 26), with roughly 138 freezing days a year (feels-like at or below 0°C), worst in January.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan22-7-4
Feb55-6-3
Mar1010-21
Apr151535
May2020910
Jun24241414
Jul26261515
Aug26261515
Sep22221111
Oct151556
Nov99-12
Dec33-5-3

Average hourly temperature in Băicoi

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 August afternoons, near 26°C, and coldest before dawn in January, near -4°C.

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

Băicoi 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 / -4°417.35.790.0
Feb / -3°387.14.810.10.2
Mar10° / 529.5411.62.2
Apr15° / 6611.50.513.24.4
May20° / 10°9314.9014.65.7
Jun24° / 14°10715.6015.46.1
Jul26° / 15°8912.9015.16.4
Aug26° / 15°6310.8013.96.9
Sep22° / 11°617.9012.37.0
Oct15° / 607.90.410.75.0
Nov / 517.72.19.31.8
Dec / -3°517.84.48.60.0

Chance of rain

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

Băicoi gets about 772 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 Mar 27 to Aug 13, peaking in June at about 54% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 11.

June is the wettest month by volume, with 107 mm over about 16 wet days; February is the driest, with 38 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 3 · 54%Jan 11 · 21%
Rain on a day (%)Rain days
Jan237
Feb267
Mar3010
Apr3912
May4815
Jun5116
Jul4213
Aug3411
Sep278
Oct268
Nov268
Dec268

Monthly rainfall

Over a full year, Băicoi collects about 772 mm of rain across 121 wet days — roughly 64 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 107 mm, while February is the driest at just 38 mm. The three wettest months alone bring about 37% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec4138526693107896361605151
Rainfall (mm)Rain daysSnow days
Jan4176
Feb3875
Mar52104
Apr66121
May93150
Jun107160
Jul89130
Aug63110
Sep6180
Oct6080
Nov5182
Dec5184

Snow in Băicoi

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.

Băicoi averages about 22 snowy days a year. Snow season runs roughly Oct 19 to Apr 18 — about 6 months.

January is snowiest, with roughly 5 days of snow and an estimated 20 cm of snowfall. Over the year that adds up to an estimated 107 cm of snow.

02468JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonJan 27
Snow daysSnowfall (cm)
Jan620
Feb527
Mar418
Apr16
May00
Jun00
Jul00
Aug00
Sep00
Oct01
Nov212
Dec422

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Băicoi, 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 June 7 and lasts for 4.1 months, ending around October 9. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 75% of the time on average.

The cloudier part of the year begins around October 10 and lasts for 7.9 months, ending around June 6. The cloudiest month is February, when it is overcast or mostly cloudy 57% 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 31 · 77%Nov 22 · 40%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4654
Feb4357
Mar4456
Apr4456
May4852
Jun5941
Jul7426
Aug7525
Sep6238
Oct5248
Nov4357
Dec4357

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 11, brings about 15 h 24 min of light; the shortest, around January 1, only 8 h 36 min — a swing of roughly 6 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.07:584:54
Feb10.17:285:35
Mar11.66:386:15
Apr13.25:396:55
May14.64:547:32
Jun15.44:357:59
Jul15.14:497:55
Aug13.95:237:18
Sep12.36:026:20
Oct10.76:405:23
Nov9.37:234:41
Dec8.67:554:31

Sunny days

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

Băicoi averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 18 days.

The sunnier stretch runs 4.5 months, from around Jun 20 to Nov 4. The sunniest month is August, with roughly 17 sunny days (bright).

The greyest month is April, down near 8 sunny days — about 54% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 1618 daysApr 97 days
Sunny daysSky
Jan10Mixed
Feb8Mixed
Mar9Mixed
Apr8Gloomy
May8Gloomy
Jun10Mixed
Jul15Mixed
Aug17Bright
Sep13Mixed
Oct11Mixed
Nov9Mixed
Dec10Mixed

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 Băicoi, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.1 months, from around June 3 to September 4. The muggiest month is July, when the air feels humid, muggy or worse about 50% of the time.

The most comfortable stretch runs from around September 5 to June 2, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 27 · 100%Jul 29 · 43%muggyhumiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May821710
Jun3039283
Jul1436428
Aug2141335
Sep722350
Oct95510
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 Băicoi is steady company: average speeds sit near 7 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 11 · 9 km/hAug 7 · 7 km/h
Wind speed (km/h)Feels
Jan7calm
Feb8calm
Mar8calm
Apr8calm
May8calm
Jun7calm
Jul7calm
Aug7calm
Sep7calm
Oct7calm
Nov7calm
Dec7calm

Best time to visit Băicoi

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid June, Băicoi 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 Băicoi for general outdoor tourist activities is from early June to early October, with a peak score in the first week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 7 · 7.3

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
Feb0.2poor
Mar2.2poor
Apr4.4fair
May5.7good
Jun6.1good
Jul6.4good
Aug6.9good
Sep7.0good
Oct5.0fair
Nov1.8poor
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 Băicoi for hot-weather activities is from late June to early September, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 15 · 6.9

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 Băicoi, 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 August (highs near 26°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 2°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Băicoi sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

UV index (midday) in Băicoi 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 Băicoi peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowJul 17UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr8Very high
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Low
Dec1Low

Average hourly UV index in Băicoi

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 5 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
Apr73.5
May70
Jun84.5
Jul85
Aug7.54
Sep5.50
Oct00
Nov00
Dec00
Almanac & agriculture

Growing season

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

The growing season in Băicoi typically lasts about 259 days, from around March 12 to November 25 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 9 to October 22.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 1250%Apr 990%Oct 2290%Nov 2550%
Frost-free chance (%)Frost nights
Jan1831
Feb2828
Mar5731
Apr938
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct9310
Nov6430
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. Băicoi banks about 1,349 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

05001,0001,500JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr24
May161
Jun270
Jul337
Aug333
Sep187
Oct38
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.

Băicoi receives about 3.7 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.3 and 6.0 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 18 to Sep 19. The brightest month is July, averaging about 5.9 kWh/m² (bright).

The dimmest month is December, down near 1.3 kWh/m² — roughly 78% less than the July peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 56.0 kWhDec 121.3 kWh
Solar energy (kWh/m²)Level
Jan1.6Dim
Feb2.4Moderate
Mar3.6Moderate
Apr4.8Bright
May5.5Bright
Jun5.9Bright
Jul5.9Bright
Aug5.3Bright
Sep3.9Moderate
Oct2.6Moderate
Nov1.6Dim
Dec1.3Dim

Where is Băicoi?

Băicoi sits at 45.0°N, 25.9°E, 312 m above sea level, in Romania. The nearest listed city is Câmpina, 14 km away.

SinaiaMizilBuftea

Topography around Băicoi

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

Within 3 km, the terrain around Băicoi has only modest variations in elevation — a maximum elevation change of 99 m around an average of 304 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 657 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,447 m.

The land around Băicoi is covered by cropland (40%) and grassland (29%) within 3 km, trees (44%) and cropland (32%) within 16 km, and trees (48%) and cropland (32%) within 80 km.

3 km
99 m
16 km
657 m
80 km
2,447 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Câmpina 14 km · Ploieşti 16 km · Moreni 17 km · Breaza 22 km · Târgovişte 33 km · Sinaia 42 km · Mizil 47 km · Buftea 53 km

Romania travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 44% of US
price level, 2025
GDP per capita
$22,538
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
82%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
10.3
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 605
Religion
Romanian Orthodox 85%other 5%Roman Catholic 5%Reformed 3%

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 Băicoi (45.0333°, 25.85°, elevation 312 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).