Chomutov weather in December

In December, Chomutov sees average daytime highs of 2°C and overnight lows near -2°C, with 44 mm of precipitation across 10.1 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 2°C through the month. The sky is clear or mostly clear about 10% 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 Chomutov's 11th-clearest and 4th-windiest month. For the whole year in context, see Chomutov's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
44 mm
10.1 wet days
Daylight
7 h 48 min
8:08 AM – 3:57 PM
Cloud cover
78%
11th clearest
Wind
11 km/h
4th windiest
Solar energy
0.7 kWh/m²
Travel score
0.0
out of 10

Chomutov is town in Czechia.

Air quality
Good
PM10 19.3 µg/m³ · 2019
Density
1,599/km²
people per km²
Founded
1252

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 2°C through the month.

A typical December day in Chomutov reaches about 2°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 -3°C and 7°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
13-1
23-1
33-1
43-1
53-1
63-1
73-1
83-1
93-1
102-2
112-2
122-2
132-2
142-2
152-2
162-2
172-2
182-2
192-2
202-2
212-2
222-2
232-2
242-3
252-3
262-3
272-3
282-3
292-3
302-3
312-3

How December really feels in Chomutov

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.

Chomutov weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°4310.67.18.30.0
Feb / -3°338.65.49.70.0
Mar / -0°45114.311.50.9
Apr13° / 399.91.313.53.4
May17° / 6012.5015.25.2
Jun21° / 11°7113016.15.8
Jul23° / 13°8113.5015.86.2
Aug23° / 13°7112.2014.36.5
Sep18° / 539.6012.45.6
Oct12° / 4710.30.510.42.9
Nov / 439.12.78.80.5
Dec / -2°4410.167.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31882
41981
51981
61981
71981
81981
92080
102080
112080
122080
132080
142080
152080
162080
172080
182080
192080
202080
212080
222080
232179
242179
252278
262278
272278
282278
292278
302278
312278

Chance of precipitation in December

Any precipitationSnow

Chomutov gets around 44 mm of rain and snow over 10.1 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 33% and peaks near 36% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
12814
22915
32915
43016
53116
63117
73217
83218
93319
103319
113420
123520
133520
143621
153621
163621
173622
183622
193621
203521
213421
223421
233321
243321
253320
263320
273220
283220
293220
303220
313320

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 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

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 7:53 AM to 8:14 AM, and sunset from 3:59 PM to 4:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.17:533:59
28.17:543:59
38.17:553:58
48.07:573:58
58.07:583:58
68.07:593:57
77.98:003:57
87.98:013:57
97.98:023:57
107.98:033:56
117.98:043:56
127.98:053:56
137.88:063:56
147.88:073:56
157.88:083:56
167.88:083:57
177.88:093:57
187.88:103:57
197.88:103:57
207.88:113:58
217.88:123:58
227.88:123:59
237.88:123:59
247.88:134:00
257.88:134:00
267.88:144:01
277.88:144:01
287.88:144:02
297.88:144:03
307.88:144:04
317.88:144:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.7 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.7 kWh/m² to a high of 5.37 kWh/m² in June across the year — December's 0.7 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.8Dim
40.8Dim
50.8Dim
60.7Dim
70.7Dim
80.7Dim
90.7Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.7Dim
180.7Dim
190.7Dim
200.7Dim
210.7Dim
220.7Dim
230.7Dim
240.7Dim
250.7Dim
260.7Dim
270.7Dim
280.7Dim
290.7Dim
300.7Dim
310.7Dim
Planning a trip in December

Is December a good time to visit Chomutov?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Chomutov.

What to pack for Chomutov in December

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

In December, Chomutov sees daytime highs around 2°C and nights near -2°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Chomutov 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 Chomutov peaks around June 21 at about 7 (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 highHighModerateLowJun 21UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7Very high
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Chomutov 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 Chomutov is worst in April — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1321 µg/m³Dec 1414 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar20Moderate
Apr21Moderate
May18Moderate
Jun20Moderate
Jul18Moderate
Aug19Moderate
Sep18Moderate
Oct16Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Chomutov?

Chomutov sits at 50.5°N, 13.4°E, 340 m above sea level, in Czechia. The nearest listed city is Jirkov, 5.0 km away.

MarienbergLounyAnnaberg-Buchholz

Topography around Chomutov

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

Within 3 km, the terrain around Chomutov has only modest variations in elevation — a maximum elevation change of 243 m around an average of 352 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 864 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,205 m.

The land around Chomutov is covered by trees (39%) and artificial surfaces (26%) within 3 km, trees (41%), cropland (29%) and grassland (22%) within 16 km, and trees (46%) and cropland (32%) within 80 km.

3 km
243 m
16 km
864 m
80 km
1,205 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Jirkov 5.0 km · Kadaň 14 km · Most 16 km · Žatec 17 km · Litvínov 21 km · Marienberg 28 km · Louny 29 km · Annaberg-Buchholz 32 km

Czechia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$35,917
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
5.9
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 582
Religion
none 48%believers unaffiliated with a religious society 9%Roman Catholic 7%other believers belonging to a church or religious society 6%

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 Chomutov (50.4605°, 13.4178°, elevation 340 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).