Slonim weather in December

In December, Slonim sees average daytime highs of 0°C and overnight lows near -4°C, with 44 mm of precipitation across 10.1 wet days and about 7.4 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 1°C in the first days to -1°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 42 min at the start of December to 7 h 24 min by month's end. Set against the rest of the year, December is Slonim's 12th-clearest and 3rd-windiest month. For the whole year in context, see Slonim's year-round climate.

Daytime high
10th warmest
Overnight low
-4°
3rd coldest
Precipitation
44 mm
10.1 wet days
Daylight
7 h 18 min
9:35 AM – 4:55 PM
Cloud cover
86%
12th clearest
Wind
16 km/h
3rd windiest
Solar energy
0.48 kWh/m²
Travel score
0.0
out of 10

Slonim is city in Belarus.

Density
1,063/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

Highs ease over the month, from about 1°C in the first days to -1°C by the end.

A typical December day in Slonim reaches about 0°C in the afternoon and slips back to -4°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -6°C and 6°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
11-2
21-2
31-3
41-3
51-3
61-3
71-3
81-3
91-3
101-3
111-3
121-3
130-4
140-4
150-4
160-4
170-4
180-4
190-4
200-4
210-4
220-4
230-5
240-5
250-5
26-1-5
27-1-5
28-1-5
29-1-5
30-1-5
31-1-5

How December really feels in Slonim

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
11 feel bitter (≤ -10°C)

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

Slonim 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-1° / -6°3710.17.57.90.0
Feb / -5°359.679.50.0
Mar / -2°4010.44.411.50.4
Apr13° / 479.71.213.63.5
May19° / 7312.40.115.55.6
Jun22° / 12°7112016.66.2
Jul24° / 14°8912.9016.26.4
Aug23° / 13°6310.4014.56.7
Sep18° / 589.7012.45.5
Oct11° / 499.40.710.32.7
Nov / 439.63.78.40.2
Dec / -4°4410.16.67.40.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21288
31288
41189
51189
61189
71189
81189
91090
101090
111090
121090
131090
141189
151189
161090
171189
181189
191189
201189
211288
221288
231288
241387
251387
261486
271486
281486
291387
301387
311486

Chance of precipitation in December

Any precipitationSnow

Slonim 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 7 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
12918
22918
32918
43018
53019
63119
73120
83120
93221
103221
113222
123222
133323
143323
153324
163424
173424
183424
193424
203424
213423
223423
233423
243423
253523
263523
273523
283623
293623
303623
313623

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 16 km/h on the calmest days to 16 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
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 42 min at the start of December to 7 h 24 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 9:18 AM to 9:41 AM, and sunset from 4:59 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.79:184:59
27.69:194:58
37.69:214:58
47.69:224:57
57.69:234:57
67.59:254:56
77.59:264:56
87.59:274:55
97.49:284:55
107.49:294:55
117.49:304:55
127.49:314:55
137.49:324:55
147.49:334:55
157.39:344:55
167.39:354:55
177.39:364:55
187.39:364:55
197.39:374:56
207.39:384:56
217.39:384:56
227.39:394:57
237.39:394:57
247.39:404:58
257.39:404:58
267.39:404:59
277.39:405:00
287.39:415:00
297.39:415:01
307.49:415:02
317.49:415:03

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.48 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.48 kWh/m² to a high of 5.56 kWh/m² in June across the year — December's 0.48 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.5Dim
20.5Dim
30.5Dim
40.5Dim
50.5Dim
60.5Dim
70.5Dim
80.5Dim
90.5Dim
100.5Dim
110.5Dim
120.5Dim
130.5Dim
140.5Dim
150.5Dim
160.5Dim
170.5Dim
180.5Dim
190.5Dim
200.5Dim
210.5Dim
220.5Dim
230.5Dim
240.5Dim
250.5Dim
260.5Dim
270.5Dim
280.5Dim
290.5Dim
300.5Dim
310.5Dim
Planning a trip in December

Is December a good time to visit Slonim?

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 Slonim.

What to pack for Slonim in December

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

In December, Slonim sees daytime highs around 0°C and nights near -4°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 Slonim 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 Slonim peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Dec 18UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5Moderate
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Slonim?

Slonim sits at 53.1°N, 25.3°E, 149 m above sea level, in Belarus. The nearest listed city is Ivatsevichi, 42 km away.

IvatsevichiBaranovichiVaukavyskNovogrudokByarozaShchuchynPruzhanyMir

Topography around Slonim

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

Within 3 km, the terrain around Slonim has only modest variations in elevation — a maximum elevation change of 78 m around an average of 149 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 108 m; within 80 km, only modest variations in elevation — a maximum elevation change of 229 m.

The land around Slonim is covered by grassland (31%), trees (28%) and artificial surfaces (28%) within 3 km, trees (47%) and cropland (34%) within 16 km, and trees (44%) and cropland (38%) within 80 km.

3 km
78 m
16 km
108 m
80 km
229 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Ivatsevichi 42 km · Baranovichi 46 km · Vaukavysk 58 km · Novogrudok 65 km · Byaroza 66 km · Shchuchyn 69 km · Pruzhany 83 km · Mir 87 km

Belarus travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 30% of US
price level, 2025
GDP per capita
$10,279
2025
Happiness
5.8 / 10
World Happiness, 2021
Safe drinking water
93%
of population, 2024
Homicide rate
2.4
per 100k, 2019
Road deaths
7.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 533
Religion
Orthodox 48%non-believers 41%Catholic 7%other 4%

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 Slonim (53.0875°, 25.3171°, elevation 149 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).