Tarnów weather in December

In December, Tarnów sees average daytime highs of 3°C and overnight lows near -2°C, with 44 mm of precipitation across 10.6 wet days and about 7.9 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 4°C in the first days to 2°C by the end. The sky is clear or mostly clear about 15% 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 Tarnów's 12th-clearest and 3rd-windiest month. For the whole year in context, see Tarnów's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
44 mm
10.6 wet days
Daylight
7 h 54 min
7:36 AM – 3:29 PM
Cloud cover
74%
12th clearest
Wind
13 km/h
3rd windiest
Solar energy
0.74 kWh/m²
Travel score
0.0
out of 10

Tarnów is City with powiat rights of Poland.

Air quality
Elevated
PM2.5 21.4 µg/m³ · 2019
Density
1,627/km²
people per km²
Founded
1330

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 2°C by the end.

A typical December day in Tarnów reaches about 3°C in the afternoon and slips back to -2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 8°C. Set against its neighbours, December runs about 5°C cooler than November and about 1°C warmer than January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
14-1
24-1
34-1
44-1
54-1
63-1
73-1
83-1
93-2
103-2
113-2
123-2
133-2
143-2
153-2
162-2
172-2
182-2
192-2
202-3
212-3
222-3
232-3
242-3
252-3
262-3
272-3
282-3
292-3
302-3
312-3

How December really feels in Tarnów

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.

Tarnów weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°4611.17.58.40.0
Feb / -3°4410.579.70.0
Mar / 5011.14.111.51.3
Apr15° / 6011.21.313.54.2
May19° / 8914.1015.15.6
Jun23° / 13°8613016.16.2
Jul25° / 14°10414.4015.76.3
Aug25° / 14°7011.3014.36.7
Sep19° / 10°7311.1012.45.9
Oct14° / 5910.10.410.54.0
Nov / 4810.32.78.81.1
Dec / -2°4410.65.87.90.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22674
32674
42575
52575
62575
72575
82575
92575
102575
112575
122575
132575
142575
152575
162674
172674
182674
192674
202773
212773
222773
232773
242773
252773
262773
272773
282674
292674
302674
312674

Chance of precipitation in December

Any precipitationSnow

Tarnów gets around 44 mm of rain and snow over 10.6 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 35% and peaks near 38% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13114
23114
33114
43215
53215
63315
73316
83416
93417
103417
113517
123518
133518
143518
153518
163518
173519
183519
193519
203519
213520
223520
233520
243520
253621
263621
273621
283722
293722
303722
313823

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 13 km/h in December.

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

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light 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 7:21 AM to 7:42 AM, and sunset from 3:31 PM to 3:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.27:213:31
28.17:223:31
38.17:233:30
48.17:243:30
58.17:253:29
68.07:273:29
78.07:283:29
88.07:293:29
98.07:303:28
108.07:313:28
117.97:323:28
127.97:333:28
137.97:343:28
147.97:343:28
157.97:353:28
167.97:363:29
177.97:373:29
187.97:373:29
197.97:383:29
207.97:393:30
217.97:393:30
227.87:403:31
237.97:403:31
247.97:403:32
257.97:413:32
267.97:413:33
277.97:413:33
287.97:423:34
297.97:423:35
307.97:423:36
317.97:423:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.74 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.74 kWh/m² to a high of 5.37 kWh/m² in June across the year — December's 0.74 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
90.8Dim
100.8Dim
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
300.8Dim
310.8Dim
Planning a trip in December

Is December a good time to visit Tarnów?

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 Tarnów.

What to pack for Tarnów in December

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

In December, Tarnów sees daytime highs around 3°C and nights near -2°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 Tarnów 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 Tarnów peaks around June 23 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 23UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Tarnów 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 Tarnów 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 Tarnów's WHO annual average of 21.4 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2026 µg/m³Dec 1716 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar24Moderate
Apr25Moderate
May24Moderate
Jun26Moderate
Jul25Moderate
Aug24Moderate
Sep21Moderate
Oct18Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Tarnów?

Tarnów sits at 50.0°N, 21.0°E, 220 m above sea level, in Poland. The nearest listed city is Brzesko, 28 km away.

BochniaGorliceMielecRopczyceJasłoNowy Sącz

Topography around Tarnów

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

Within 3 km, the terrain around Tarnów has only modest variations in elevation — a maximum elevation change of 170 m around an average of 216 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 348 m; within 80 km, large variations in elevation — a maximum elevation change of 1,149 m.

The land around Tarnów is covered by trees (40%) and artificial surfaces (36%) within 3 km, trees (50%), cropland (23%) and grassland (20%) within 16 km, and trees (50%) and cropland (28%) within 80 km.

3 km
170 m
16 km
348 m
80 km
1,149 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Brzesko 28 km · Dębica 31 km · Bochnia 40 km · Gorlice 42 km · Mielec 44 km · Ropczyce 45 km · Jasło 46 km · Nowy Sącz 48 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 Tarnów (50.0138°, 20.987°, elevation 220 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).