Climate and average weather in Kessel-Lo

In Kessel-Lo, the summers are warm, showery, and partly cloudy and the winters are cold, snowy, and mostly cloudy.

Best: mid May to late September

Over the course of the year, the temperature in Kessel-Lo typically varies from 2°C to 23°C, and is rarely below -5°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 Kessel-Lo for warm-weather activities is from mid May to late September.

Hottest
Jul
23°
Coldest
Jan
Wettest
Aug
73 mm
Driest
Apr
46 mm
Rain / yr
734 mm
139 wet days
Daylight
7.7–16.3 h
shortest–longest
Elevation
35 m
50.9°N
Clearest
Aug
65% cloud

Kessel-Lo is section of Leuven, Belgium.

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

Kessel-Lo 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 Kessel-Lo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.7 months, from May 26 to September 15, with daily high temperatures above 19°C. The hottest month of the year in Kessel-Lo is July, with an average high of 23°C and low of 14°C.

The cool season lasts 3.6 months, from November 17 to March 6, with daily high temperatures below 9°C. The coldest month of the year in Kessel-Lo is January, with an average low of 2°C and high of 6°C.

Days typically run about 7°C warmer than nights, with the widest day–night swing (around 9°C) in May.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan62
Feb72
Mar114
Apr156
May189
Jun2112
Jul2314
Aug2314
Sep1911
Oct158
Nov105
Dec72

How hot and cold Kessel-Lo 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 -3°C (around January 28), with roughly 107 freezing days a year (feels-like at or below 0°C), worst in January.

-5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan66-32
Feb77-22
Mar111104
Apr151536
May181889
Jun21211212
Jul23231414
Aug23231414
Sep19191111
Oct151568
Nov101025
Dec77-22

Average hourly temperature in Kessel-Lo

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 23°C, and coldest before dawn in January, near C.

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

Kessel-Lo 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 / 6211.81.18.20.4
Feb / 5610.91.39.70.8
Mar11° / 5511.80.711.52.4
Apr15° / 4610.7013.54.2
May18° / 5912.2015.35.4
Jun21° / 12°6711.3016.26.0
Jul23° / 14°7212.5015.86.4
Aug23° / 14°7312014.36.4
Sep19° / 11°5310.4012.45.9
Oct15° / 5811.1010.44.2
Nov10° / 6211.60.38.72.0
Dec / 7212.91.37.80.6

Chance of rain

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

Kessel-Lo gets about 734 mm of precipitation a year. On a typical day the chance of rain is often wet, and that barely changes with the seasons — rain is spread fairly evenly through the year.

August is the wettest month by volume, with 73 mm over about 12 wet days; April is the driest, with 46 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecmostly drysome rainoften wetvery wetMar 1 · 42%Apr 12 · 34%
Rain on a day (%)Rain days
Jan3912
Feb3911
Mar3712
Apr3611
May4012
Jun3811
Jul3913
Aug3912
Sep3510
Oct3711
Nov3812
Dec4113

Monthly rainfall

Over a full year, Kessel-Lo collects about 734 mm of rain across 139 wet days — roughly 61 mm in an average month.

It doesn’t fall evenly. August is the wettest month with 73 mm, while April is the driest at just 46 mm. The three wettest months alone bring about 30% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec625655465967727353586272
Rainfall (mm)Rain daysSnow days
Jan62121
Feb56111
Mar55121
Apr46110
May59120
Jun67110
Jul72130
Aug73120
Sep53100
Oct58110
Nov62120
Dec72131

Snow in Kessel-Lo

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.

Kessel-Lo averages about 5 snowy days a year. Snow season runs roughly Nov 20 to Mar 15 — about 3.8 months.

February is snowiest, with roughly 1.4 day of snow and an estimated 5 cm of snowfall. Over the year that adds up to an estimated 17 cm of snow.

01234JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonFeb 2
Snow daysSnowfall (cm)
Jan14
Feb15
Mar12
Apr00
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov01
Dec16

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Kessel-Lo, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around June 17 and lasts for 3.5 months, ending around October 2. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 38% of the time on average.

The cloudier part of the year begins around October 18 and lasts for 5.0 months, ending around March 17. The cloudiest month is November, when it is overcast or mostly cloudy 77% 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 29 · 41%Nov 25 · 22%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2674
Feb2575
Mar2971
Apr3466
May3169
Jun3268
Jul3862
Aug3763
Sep3664
Oct2971
Nov2377
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 15, brings about 16 h 18 min of light; the shortest, around December 15, only 7 h 42 min — a swing of roughly 8 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.28:454:56
Feb9.78:055:46
Mar11.57:056:36
Apr13.55:557:28
May15.34:598:16
Jun16.24:338:49
Jul15.84:508:43
Aug14.35:347:56
Sep12.46:246:47
Oct10.47:145:39
Nov8.78:074:46
Dec7.88:454:29

Sunny days

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

Kessel-Lo gets about 5 sunny days a month gloomy — and it barely shifts through the year, holding between 3 and 6 days every month. Clear skies here are a flat line, not a season.

0510JanFebMarAprMayJunJulAugSepOctNovDecgloomymixedSep 196 daysFeb 273 days
Sunny daysSky
Jan5Gloomy
Feb4Gloomy
Mar5Gloomy
Apr6Gloomy
May5Gloomy
Jun5Gloomy
Jul5Gloomy
Aug5Gloomy
Sep6Gloomy
Oct5Gloomy
Nov4Gloomy
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 Kessel-Lo, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.7 months, from around May 30 to September 18. The muggiest month is July, when the air feels humid, muggy or worse about 19% of the time.

The most comfortable stretch runs from around September 19 to May 29, 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 21 · 100%Jul 27 · 76%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May89910
Jun682471
Jul4239181
Aug4140172
Sep712360
Oct901000
Nov99100
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.

Across the year, average wind speed in Kessel-Lo is typically light breeze, near 13 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.6 months, from around Oct 11 to Mar 28. The windiest month is January, averaging about 16 km/h (light breeze).

The calmer part of the year runs from around Mar 29 to Oct 10, with July the calmest month at about 12 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 6 · 16 km/hJul 31 · 11 km/h
Wind speed (km/h)Feels
Jan16light breeze
Feb15light breeze
Mar14light breeze
Apr13light breeze
May12light breeze
Jun12calm
Jul12calm
Aug11calm
Sep12light breeze
Oct14light breeze
Nov15light breeze
Dec16light breeze

Best time to visit Kessel-Lo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late May, Kessel-Lo 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 Kessel-Lo for general outdoor tourist activities is from mid May to late September, with a peak score in the first week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 1 · 6.7

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
Jan0.5poor
Feb0.8poor
Mar2.4poor
Apr4.2fair
May5.4fair
Jun6.0good
Jul6.4good
Aug6.4good
Sep5.9good
Oct4.2fair
Nov2.0poor
Dec0.7poor

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 Kessel-Lo for hot-weather activities is from late June to late August, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 31 · 5.5

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 Kessel-Lo, 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 23°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 6°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Kessel-Lo sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

UV index (midday) in Kessel-Lo 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 Kessel-Lo peaks around July 12 at about 6 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 6Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Average hourly UV index in Kessel-Lo

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 7.5 hours a day reach index 3 (protection recommended), and 2.5 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
Mar00
Apr4.50
May70
Jun7.52
Jul7.52.5
Aug70
Sep40
Oct00
Nov00
Dec00

Air quality in Kessel-Lo 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 Kessel-Lo is worst in April — around 18 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1317 µg/m³Dec 1511 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May16Moderate
Jun15Moderate
Jul14Moderate
Aug15Moderate
Sep15Moderate
Oct13Moderate
Nov12Moderate
Dec11Good
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

Kessel-Lo is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about April 3 to November 15 (227 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freeApr 390%Nov 1590%
Frost-free chance (%)Frost nights
Jan6531
Feb6628
Mar8431
Apr953
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct980
Nov8916
Dec7231

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. Kessel-Lo banks about 1,067 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
Apr17
May117
Jun197
Jul267
Aug258
Sep160
Oct49
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.

Kessel-Lo receives about 3.0 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 0.6 and 5.3 kWh/m².

The brighter stretch of the year lasts 6.0 months, from around Mar 21 to Sep 18. The brightest month is June, averaging about 5.3 kWh/m² (bright).

The dimmest month is December, down near 0.6 kWh/m² — roughly 88% less than the June peak.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightJun 245.3 kWhDec 220.6 kWh
Solar energy (kWh/m²)Level
Jan0.8Dim
Feb1.5Dim
Mar2.7Moderate
Apr4.3Bright
May5.0Bright
Jun5.3Bright
Jul5.1Bright
Aug4.4Bright
Sep3.1Moderate
Oct1.9Dim
Nov1.0Dim
Dec0.6Dim

Where is Kessel-Lo?

Kessel-Lo sits at 50.9°N, 4.7°E, 35 m above sea level, in Belgium. The nearest listed city is Blauwput, 1.0 km away.

Tienen

Topography around Kessel-Lo

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

Within 3 km, the terrain around Kessel-Lo has only modest variations in elevation — a maximum elevation change of 105 m around an average of 46 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 467 m.

The land around Kessel-Lo is covered by trees (44%) and artificial surfaces (33%) within 3 km, trees (35%), cropland (31%) and grassland (22%) within 16 km, and trees (32%), cropland (32%) and grassland (24%) within 80 km.

3 km
105 m
16 km
130 m
80 km
467 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Blauwput 1.0 km · Leuven 3.0 km · Heverlee 4.0 km · Herent 5.0 km · Rotselaar 8.0 km · Aarschot 13 km · Kortenberg 14 km · Tienen 17 km

Belgium travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 81% of US
price level, 2025
GDP per capita
$60,750
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2021
Road deaths
5.8
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 608
Religion
Roman Catholic 57%nonbeliever/agnostic 20%atheist 9%Muslim 7%

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 Kessel-Lo (50.8855°, 4.7372°, elevation 35 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).