Fléron weather in December

In December, Fléron sees average daytime highs of 5°C and overnight lows near 1°C, with 108 mm of precipitation across 15.9 wet days and about 7.8 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 13% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 06 min at the start of December to 7 h 48 min by month's end. Set against the rest of the year, December is Fléron's 12th-clearest and 2nd-windiest month. For the whole year in context, see Fléron's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
108 mm
15.9 wet days
Daylight
7 h 48 min
8:40 AM – 4:27 PM
Cloud cover
78%
12th clearest
Wind
17 km/h
2nd windiest
Solar energy
0.64 kWh/m²
Travel score
0.0
out of 10

Fléron is town in Fléron municipality, Belgium.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 5°C through the month.

A typical December day in Fléron reaches about 5°C in the afternoon and slips back to 1°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -0°C and 10°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
162
262
352
452
551
651
751
851
951
1051
1151
1251
1351
1451
1551
1651
1751
1851
1951
2051
2151
2251
2351
2441
2541
2641
2741
2840
2940
3040
3140

How December really feels in Fléron

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

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

Fléron weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9714.64.28.30.0
Feb / -0°8313.15.59.70.1
Mar / 8514.73.411.51.5
Apr13° / 6412.70.713.53.2
May17° / 7313.9015.24.7
Jun19° / 11°8514016.25.4
Jul21° / 13°8914.5015.85.9
Aug21° / 13°8713.3014.35.9
Sep17° / 10°7412012.45.2
Oct13° / 7613.2010.43.3
Nov / 8314.31.68.71.1
Dec / 10815.94.97.80.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22278
32278
42278
52377
62377
72377
82377
92377
102377
112377
122377
132377
142377
152278
162278
172278
182179
192179
202080
212080
221981
231981
241882
251882
261882
271882
281882
291882
301882
311882

Chance of precipitation in December

Any precipitationSnow

Fléron gets around 108 mm of rain and snow over 15.9 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 50% and peaks near 53% on the wettest days, and about 5 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14710
24710
34711
44711
54711
64711
74812
84812
94813
104813
114914
124914
134914
145015
155115
165116
175216
185217
195317
205318
215318
225318
235318
245318
255318
265318
275317
285317
295216
305215
315115

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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%151015202531
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
31100

Wind in December

Winds average 17 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 06 min at the start of December to 7 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:24 AM to 8:46 AM, and sunset from 4:30 PM to 4:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.18:244:30
28.18:264:29
38.08:274:29
48.08:284:28
58.08:294:28
67.98:314:27
77.98:324:27
87.98:334:27
97.98:344:27
107.98:354:27
117.88:364:26
127.88:374:26
137.88:384:26
147.88:394:27
157.88:394:27
167.88:404:27
177.88:414:27
187.88:424:27
197.88:424:28
207.88:434:28
217.88:434:28
227.78:444:29
237.88:444:29
247.88:454:30
257.88:454:30
267.88:454:31
277.88:464:32
287.88:464:32
297.88:464:33
307.88:464:34
317.88:464:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.64 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.27 kWh/m² in June across the year — December's 0.64 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.7Dim
40.7Dim
50.7Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.6Dim
160.6Dim
170.6Dim
180.6Dim
190.6Dim
200.6Dim
210.6Dim
220.6Dim
230.6Dim
240.6Dim
250.6Dim
260.6Dim
270.6Dim
280.6Dim
290.6Dim
300.6Dim
310.6Dim
Planning a trip in December

Is December a good time to visit Fléron?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Fléron.

What to pack for Fléron in December

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

In December, Fléron sees daytime highs around 5°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 16 days see rain.

a warm layerrain geara heavy coat

UV index in Fléron in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fléron peaks around July 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 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 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Fléron in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Fléron is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1218 µg/m³Nov 2211 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec11Good
Location & terrain

Where is Fléron?

Fléron sits at 50.6°N, 5.7°E, 258 m above sea level, in Belgium. The nearest listed city is Soumagne, 5.0 km away.

Topography around Fléron

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

Within 3 km, the terrain around Fléron has only modest variations in elevation — a maximum elevation change of 234 m around an average of 215 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 362 m; within 80 km, large variations in elevation — a maximum elevation change of 1,000 m.

The land around Fléron is covered by trees (46%) and grassland (33%) within 3 km, trees (39%) and grassland (33%) within 16 km, and trees (41%), grassland (26%) and cropland (26%) within 80 km.

3 km
234 m
16 km
362 m
80 km
1,000 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Soumagne 5.0 km · Chaudfontaine 5.0 km · Grivegnée 5.0 km · Herstal 7.0 km · Liège 8.0 km · Herve 8.0 km · Saint-Nicolas 11 km · Oupeye 11 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 Fléron (50.6152°, 5.6806°, elevation 258 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).