Letňany weather in December

In December, Letňany sees average daytime highs of 3°C and overnight lows near -1°C, with 40 mm of precipitation across 9.3 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 4°C in the first days to 3°C by the end. The sky is clear or mostly clear about 12% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 12 min at the start of December to 7 h 54 min by month's end. Set against the rest of the year, December is Letňany's 11th-clearest and 4th-windiest month. For the whole year in context, see Letňany's year-round climate.

Daytime high
11th warmest
Overnight low
-1°
3rd coldest
Precipitation
40 mm
9.3 wet days
Daylight
7 h 54 min
8:02 AM – 3:54 PM
Cloud cover
75%
11th clearest
Wind
12 km/h
4th windiest
Solar energy
0.73 kWh/m²
Travel score
0.0
out of 10

Letňany is cadastral area of Prague.

Density
3,871/km²
people per km²
Founded
1347

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 4°C in the first days to 3°C by the end.

A typical December day in Letňany reaches about 3°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 -2°C and 9°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
140
240
340
440
540
640
740
840
940
1040
1140
124-1
134-1
143-1
153-1
163-1
173-1
183-1
193-1
203-1
213-1
223-1
233-1
243-2
253-2
263-2
273-2
283-2
293-2
303-2
313-2

How December really feels in Letňany

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.

Letňany 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 / -2°369.74.48.30.0
Feb / -2°3083.39.70.1
Mar / 4110.22.111.51.7
Apr14° / 358.90.413.54.3
May19° / 6211.9015.25.8
Jun23° / 13°7311.4016.16.4
Jul25° / 14°7612.6015.76.5
Aug25° / 14°6810.3014.36.8
Sep20° / 10°538.7012.46.3
Oct13° / 439.20.110.53.8
Nov / 409.41.38.81.0
Dec / -1°409.33.77.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22080
32278
42278
52278
62278
72278
82377
92377
102377
112476
122476
132476
142476
152476
162476
172476
182476
192476
202476
212476
222476
232575
242575
252575
262575
272575
282575
292575
302575
312575

Chance of precipitation in December

Any precipitationSnow

Letňany gets around 40 mm of rain and snow over 9.3 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 31% and peaks near 32% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1288
2299
3299
4309
53010
63110
73110
83110
93111
103111
113111
123211
133212
143212
153212
163213
173213
183213
193113
203113
213013
223013
233013
243013
253014
263013
273113
283113
293113
303213
313213

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 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
412calm
512calm
612calm
712calm
812calm
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 12 min at the start of December to 7 h 54 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 7:47 AM to 8:08 AM, and sunset from 3:56 PM to 4:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.27:473:56
28.17:483:56
38.17:493:55
48.17:513:55
58.07:523:55
68.07:533:54
78.07:543:54
88.07:553:54
98.07:563:54
107.97:573:54
117.97:583:53
127.97:593:53
137.98:003:53
147.98:013:54
157.98:023:54
167.98:023:54
177.88:033:54
187.88:043:54
197.88:043:55
207.88:053:55
217.88:063:55
227.88:063:56
237.88:063:56
247.88:073:57
257.88:073:57
267.88:083:58
277.88:083:59
287.98:083:59
297.98:084:00
307.98:084:01
317.98:084:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.73 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.73 kWh/m² to a high of 5.45 kWh/m² in June across the year — December's 0.73 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.8Dim
40.8Dim
50.8Dim
60.8Dim
70.8Dim
80.8Dim
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
310.8Dim
Planning a trip in December

Is December a good time to visit Letňany?

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 Letňany.

What to pack for Letňany in December

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

In December, Letňany sees daytime highs around 3°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Letňany 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 Letňany 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJun 21UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr4Moderate
May6High
Jun7Very high
Jul7High
Aug6High
Sep5Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Letňany 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 Letňany is worst in April — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1022 µg/m³Dec 1515 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar21Moderate
Apr22Moderate
May19Moderate
Jun21Moderate
Jul18Moderate
Aug19Moderate
Sep19Moderate
Oct17Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Letňany?

Letňany sits at 50.1°N, 14.5°E, 276 m above sea level, in Czechia. The nearest listed city is Střížkov, 2.0 km away.

Topography around Letňany

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

Within 3 km, the terrain around Letňany has only modest variations in elevation — a maximum elevation change of 152 m around an average of 266 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 235 m; within 80 km, large variations in elevation — a maximum elevation change of 961 m.

The land around Letňany is covered by artificial surfaces (34%), trees (24%) and cropland (23%) within 3 km, cropland (39%), trees (28%) and artificial surfaces (21%) within 16 km, and cropland (41%) and trees (40%) within 80 km.

3 km
152 m
16 km
235 m
80 km
961 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Střížkov 2.0 km · Prosek 2.0 km · Vysočany 3.0 km · Libeň 4.0 km · Kobylisy 5.0 km · Černý Most 5.0 km · Holešovice 6.0 km · Staré Strašnice 6.0 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 Letňany (50.1333°, 14.5167°, elevation 276 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).