Tienen weather in December

In December, Tienen sees average daytime highs of 6°C and overnight lows near 2°C, with 78 mm of precipitation across 13.6 wet days and about 7.8 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 6°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 Tienen's 12th-clearest and 2nd-windiest month. For the whole year in context, see Tienen's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
78 mm
13.6 wet days
Daylight
7 h 42 min
8:44 AM – 4:29 PM
Cloud cover
76%
12th clearest
Wind
17 km/h
2nd windiest
Solar energy
0.64 kWh/m²
Travel score
0.5
out of 10

Tienen is town in Tienen 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 6°C through the month.

A typical December day in Tienen reaches about 6°C in the afternoon and slips back to 2°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 1°C and 11°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
173
273
373
473
573
672
772
862
962
1062
1162
1262
1362
1462
1562
1662
1762
1862
1962
2062
2162
2262
2362
2462
2562
2662
2762
2862
2962
3062
3162

How December really feels in Tienen

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.

Tienen weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6412.31.58.20.2
Feb / 5911.32.39.70.6
Mar10° / 5912.6111.52.2
Apr14° / 5111.40.113.53.9
May18° / 6612.9015.25.2
Jun21° / 12°7412.2016.25.9
Jul23° / 14°7812.8015.86.3
Aug22° / 14°8112.3014.36.3
Sep19° / 11°5910.5012.45.8
Oct14° / 6111.5010.44.0
Nov / 6612.50.48.71.8
Dec / 7813.61.97.80.5

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 12% of December, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22476
32476
42476
52476
62575
72674
82773
92773
102773
112773
122773
132872
142872
152872
162773
172674
182674
192674
202575
212476
222575
232575
242476
252377
262377
272377
282377
292278
302278
312278

Chance of precipitation in December

Any precipitationSnow

Tienen gets around 78 mm of rain and snow over 13.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 43% and peaks near 44% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1425
2425
3425
4435
5435
6435
7435
8425
9426
10426
11426
12426
13426
14426
15436
16436
17436
18446
19446
20447
21447
22447
23447
24447
25447
26446
27446
28446
29446
30445
31445

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
316light breeze
416light breeze
516light breeze
616light 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
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light 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 8:28 AM to 8:50 AM, and sunset from 4:32 PM to 4:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.18:284:32
28.08:304:31
38.08:314:31
48.08:324:30
57.98:334:30
67.98:344:29
77.98:364:29
87.98:374:29
97.88:384:29
107.88:394:29
117.88:404:29
127.88:414:28
137.88:424:28
147.88:424:29
157.88:434:29
167.78:444:29
177.78:454:29
187.78:454:29
197.78:464:30
207.78:474:30
217.78:474:30
227.78:484:31
237.78:484:31
247.78:494:32
257.78:494:32
267.78:494:33
277.78:494:34
287.78:504:34
297.88:504:35
307.88:504:36
317.88:504:37

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 5.33 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
20.7Dim
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
310.7Dim
Planning a trip in December

Is December a good time to visit Tienen?

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

0.5
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 Tienen.

What to pack for Tienen in December

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

In December, Tienen sees daytime highs around 6°C and nights near 2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 14 days see rain.

a warm layera heavy coatrain gear

UV index in Tienen 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 Tienen 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

Air quality in Tienen 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 Tienen is worst in April — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1216 µg/m³Dec 1311 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar16Moderate
Apr16Moderate
May15Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct12Good
Nov11Good
Dec11Good
Location & terrain

Where is Tienen?

Tienen sits at 50.8°N, 4.9°E, 46 m above sea level, in Belgium. The nearest listed city is Kessel-Lo, 17 km away.

Kessel-LoBlauwputSint-TruidenHeverleeLeuvenAarschotDiestHerent

Topography around Tienen

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

Within 3 km, the terrain around Tienen has only modest variations in elevation — a maximum elevation change of 55 m around an average of 56 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, large variations in elevation — a maximum elevation change of 690 m.

The land around Tienen is covered by cropland (44%) and artificial surfaces (23%) within 3 km, cropland (51%), grassland (22%) and trees (20%) within 16 km, and trees (35%), cropland (29%) and grassland (25%) within 80 km.

3 km
55 m
16 km
137 m
80 km
690 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Kessel-Lo 17 km · Blauwput 17 km · Sint-Truiden 18 km · Heverlee 18 km · Leuven 18 km · Aarschot 21 km · Diest 22 km · Herent 22 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 Tienen (50.8075°, 4.9378°, elevation 46 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).