Kaluga weather in December

In December, Kaluga sees average daytime highs of -3°C and overnight lows near -7°C, with 42 mm of precipitation across 10.7 wet days and about 7.1 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about -2°C in the first days to -4°C by the end. The sky is clear or mostly clear about 5% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 24 min at the start of December to 7 h 06 min by month's end. Set against the rest of the year, December is Kaluga's 11th-clearest and 4th-windiest month. For the whole year in context, see Kaluga's year-round climate.

Daytime high
-3°
10th warmest
Overnight low
-7°
3rd coldest
Precipitation
42 mm
10.7 wet days
Daylight
7 hours
9:00 AM – 4:02 PM
Cloud cover
90%
11th clearest
Wind
16 km/h
4th windiest
Solar energy
0.41 kWh/m²
Travel score
0.0
out of 10

Kaluga is town and administrative center of Kaluga Oblast in central Russia.

Density
2,019/km²
people per km²
Founded
1371

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 -2°C in the first days to -4°C by the end.

A typical December day in Kaluga reaches about -3°C in the afternoon and slips back to -7°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -10°C and 3°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

-20°-15°-10°-5°151015202531
Avg high (°C)Avg low (°C)
1-1-6
2-2-6
3-2-6
4-2-6
5-2-6
6-2-6
7-2-6
8-2-6
9-2-6
10-2-6
11-2-7
12-3-7
13-3-7
14-3-7
15-3-7
16-3-7
17-3-7
18-3-7
19-3-7
20-3-8
21-3-8
22-3-8
23-3-8
24-3-8
25-3-8
26-3-8
27-3-8
28-4-8
29-4-8
30-4-8
31-4-8

How December really feels in Kaluga

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
31 feel bitter (≤ -10°C)

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

Kaluga weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -9°389.610.77.60.0
Feb-4° / -9°359.39.69.30.0
Mar / -5°378.97.111.50.0
Apr11° / 409.31.813.72.7
May18° / 6211.70.115.85.6
Jun22° / 12°7112.4016.96.1
Jul24° / 14°8513.4016.46.4
Aug22° / 12°6910.8014.76.6
Sep16° / 6210.30.212.54.9
Oct / 6010.71.510.21.8
Nov / -3°459.25.48.20.0
Dec-3° / -7°4210.710.27.10.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 3% of December, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31090
4991
5991
6892
7793
8793
9793
10793
11793
12793
13793
14793
15892
16892
17892
18892
19892
20793
21793
22793
23793
24793
25793
26793
27793
28694
29694
30694
31793

Chance of precipitation in December

Any precipitationSnow

Kaluga gets around 42 mm of rain and snow over 10.7 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 34% and peaks near 34% on the wettest days, and about 10 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13327
23328
33328
43429
53429
63429
73430
83430
93430
103431
113431
123431
133431
143431
153431
163432
173432
183433
193433
203433
213434
223434
233434
243435
253335
263335
273335
283335
293335
303235
313235

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 16 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 24 min at the start of December to 7 h 06 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 8:42 AM to 9:06 AM, and sunset from 4:07 PM to 4:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.48:424:07
27.48:444:06
37.38:454:06
47.38:474:05
57.38:484:05
67.28:494:04
77.28:514:04
87.28:524:03
97.28:534:03
107.18:544:03
117.18:554:02
127.18:564:02
137.18:574:02
147.18:584:02
157.08:594:02
167.09:004:02
177.09:014:02
187.09:014:03
197.09:024:03
207.09:034:03
217.09:034:04
227.09:044:04
237.09:044:04
247.09:054:05
257.09:054:06
267.09:054:06
277.09:054:07
287.09:064:08
297.09:064:09
307.19:064:10
317.19:064:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.41 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.41 kWh/m² to a high of 5.59 kWh/m² in June across the year — December's 0.41 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.5Dim
20.5Dim
30.5Dim
40.5Dim
50.4Dim
60.4Dim
70.4Dim
80.4Dim
90.4Dim
100.4Dim
110.4Dim
120.4Dim
130.4Dim
140.4Dim
150.4Dim
160.4Dim
170.4Dim
180.4Dim
190.4Dim
200.4Dim
210.4Dim
220.4Dim
230.4Dim
240.4Dim
250.4Dim
260.4Dim
270.4Dim
280.4Dim
290.4Dim
300.4Dim
310.4Dim
Planning a trip in December

Is December a good time to visit Kaluga?

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

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

December is a weaker month for outdoor sightseeing in Kaluga.

What to pack for Kaluga in December

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

In December, Kaluga sees daytime highs around -3°C and nights near -7°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

UV index in Kaluga in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kaluga 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 18 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 6Dec 18UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May4Moderate
Jun6High
Jul6High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Kaluga?

Kaluga sits at 54.5°N, 36.3°E, 208 m above sea level, in Russia. The nearest listed city is Suvorov, 48 km away.

Topography around Kaluga

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

Within 3 km, the terrain around Kaluga has only modest variations in elevation — a maximum elevation change of 98 m around an average of 184 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 156 m; within 80 km, only modest variations in elevation — a maximum elevation change of 206 m.

The land around Kaluga is covered by artificial surfaces (54%) and trees (33%) within 3 km, trees (59%) within 16 km, and trees (59%) and grassland (21%) within 80 km.

3 km
98 m
16 km
156 m
80 km
206 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Suvorov 48 km · Aleksin 52 km · Maloyaroslavets 55 km · Kozel’sk 64 km · Obninsk 68 km · Protvino 71 km · Balabanovo 77 km · Sukhinichi 77 km

Russia travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$17,547
2025
Happiness
5.8 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
6.8
per 100k, 2021
Road deaths
12
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 521
Religion
other Christian 2%

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 Kaluga (54.5306°, 36.27°, elevation 208 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).