Bielsko-Biala weather in January

In January, Bielsko-Biala sees average daytime highs of 1°C and overnight lows near -5°C, with 66 mm of precipitation across 13.1 wet days and about 8.4 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 1°C through the month. The sky is clear or mostly clear about 18% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 hours at the start of January to 9 hours by month's end. Set against the rest of the year, January is Bielsko-Biala's 10th-clearest and 1st-windiest month. For the whole year in context, see Bielsko-Biala's year-round climate.

Daytime high
12th warmest
Overnight low
-5°
1st coldest
Precipitation
66 mm
13.1 wet days
Daylight
8 h 18 min
7:43 AM – 4:03 PM
Cloud cover
73%
10th clearest
Wind
12 km/h
1st windiest
Solar energy
1.01 kWh/m²
Travel score
0.0
out of 10

Bielsko-Biala is city in Silesian Voivodeship, Poland.

Air quality
Elevated
PM2.5 21.6 µg/m³ · 2019
Density
1,412/km²
people per km²
Founded
1312

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 1°C through the month.

A typical January day in Bielsko-Biala reaches about 1°C in the afternoon and slips back to -5°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -6°C and 7°C. Set against its neighbours, January runs about 1°C cooler than December and about 2°C cooler than February.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
11-4
21-4
31-4
41-4
51-4
61-4
71-4
81-4
91-4
101-4
111-4
121-4
131-4
141-4
151-4
161-4
171-5
181-5
191-5
201-5
210-5
220-5
230-5
240-5
250-5
260-5
270-5
280-5
290-5
301-5
311-5

How January really feels in Bielsko-Biala

Once humidity and wind are folded in, January 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
9 feel bitter (≤ -10°C)

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

Bielsko-Biala weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°6613.110.78.40.0
Feb / -4°6312.39.99.70.0
Mar / -1°7213.6711.50.8
Apr13° / 73132.813.53.3
May18° / 12016.90.215.14.8
Jun21° / 11°12316.10165.4
Jul23° / 13°14117.3015.75.7
Aug23° / 13°10613.3014.26.3
Sep18° / 10013012.45.2
Oct13° / 7611.91.410.53.3
Nov / 6711.95.38.80.8
Dec / -3°6412.29.180.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 9% of January, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42674
52674
62674
72674
82674
92674
102773
112773
122872
132971
142971
152971
163070
173070
183070
193169
203169
213070
223070
232872
242872
252872
262872
272872
282773
292773
302773
312773

Chance of precipitation in January

Any precipitationSnow

Bielsko-Biala gets around 66 mm of rain and snow over 13.1 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 42% and peaks near 46% on the wettest days, and about 11 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14636
24636
34536
44535
54535
64534
74433
84433
94332
104332
114231
124231
134131
144130
154031
164031
174031
183932
193932
203933
213934
223934
234035
244036
254036
264136
274137
284137
294137
304137
314137

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 January

Winds average 12 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 12 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
113light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
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
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 hours at the start of January to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over January. Sunrise moves from 7:48 AM to 7:28 AM, and sunset from 3:46 PM to 4:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.07:483:46
28.07:483:47
38.07:483:48
48.07:483:49
58.07:483:50
68.07:483:51
78.17:473:52
88.17:473:53
98.17:473:54
108.17:463:55
118.27:463:56
128.27:463:58
138.27:453:59
148.37:444:00
158.37:444:02
168.37:434:03
178.47:424:04
188.47:424:06
198.47:414:07
208.57:404:09
218.57:394:10
228.67:384:12
238.67:374:13
248.67:364:15
258.77:354:16
268.77:344:18
278.87:334:20
288.87:324:21
298.97:314:23
308.97:294:24
319.07:284:26

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.01 kWh/m².

For context, solar energy here swings from a low near 0.77 kWh/m² to a high of 5.2 kWh/m² in June across the year — January's 1.01 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
70.9Dim
80.9Dim
90.9Dim
100.9Dim
110.9Dim
120.9Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.0Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.3Dim
291.3Dim
301.3Dim
311.4Dim
Planning a trip in January

Is January a good time to visit Bielsko-Biala?

Our two travel scores rate January 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

January is a weaker month for outdoor sightseeing in Bielsko-Biala.

What to pack for Bielsko-Biala in January

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

In January, Bielsko-Biala sees daytime highs around 1°C and nights near -5°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

UV index in Bielsko-Biala in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bielsko-Biala peaks around June 22 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Bielsko-Biala in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Bielsko-Biala is worst in June — around 26 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 15 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Bielsko-Biala's WHO annual average of 21.6 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1726 µg/m³Dec 1316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar24Moderate
Apr25Moderate
May25Moderate
Jun26Moderate
Jul25Moderate
Aug25Moderate
Sep21Moderate
Oct18Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Bielsko-Biala?

Bielsko-Biala sits at 49.8°N, 19.0°E, 330 m above sea level, in Poland. The nearest listed city is Czechowice-Dziedzice, 11 km away.

Topography around Bielsko-Biala

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

Within 3 km, the terrain around Bielsko-Biala has only modest variations in elevation — a maximum elevation change of 131 m around an average of 344 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,021 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,717 m.

The land around Bielsko-Biala is covered by trees (46%) and artificial surfaces (43%) within 3 km, trees (55%) within 16 km, and trees (59%) within 80 km.

3 km
131 m
16 km
1,021 m
80 km
1,717 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Czechowice-Dziedzice 11 km · Kęty 14 km · Żywiec 18 km · Pszczyna 19 km · Ustroń 21 km · Andrychów 21 km · Auschwitz 26 km · Bieruń 30 km

Poland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 52% of US
price level, 2025
GDP per capita
$28,420
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
9.4
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 600
Religion
Roman Catholic 71%refused to answer 21%no religion 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 Bielsko-Biala (49.8225°, 19.0469°, elevation 330 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).