Ostróda weather in December

In December, Ostróda sees average daytime highs of 2°C and overnight lows near -2°C, with 48 mm of precipitation across 10.8 wet days and about 7.3 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 3°C in the first days to 1°C by the end. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 36 min at the start of December to 7 h 18 min by month's end. Set against the rest of the year, December is Ostróda's 11th-clearest and 2nd-windiest month. For the whole year in context, see Ostróda's year-round climate.

Daytime high
10th warmest
Overnight low
-2°
3rd coldest
Precipitation
48 mm
10.8 wet days
Daylight
7 h 12 min
8:00 AM – 3:13 PM
Cloud cover
82%
11th clearest
Wind
16 km/h
2nd windiest
Solar energy
0.45 kWh/m²
Travel score
0.0
out of 10

Ostróda is city and urban gmina of Poland.

Air quality
Elevated
PM2.5 15.7 µg/m³ · 2019
Density
2,369/km²
people per km²
Founded
1329

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 3°C in the first days to 1°C by the end.

A typical December day in Ostróda reaches about 2°C in the afternoon and slips back to -2°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 7°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)
13-1
23-1
33-1
42-1
52-1
62-1
72-1
82-1
92-1
102-2
112-2
122-2
132-2
142-2
152-2
162-2
171-2
181-2
191-3
201-3
211-3
221-3
231-3
241-3
251-3
261-3
271-3
281-3
291-3
301-3
311-4

How December really feels in Ostróda

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.

Ostróda weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°4611.16.57.80.0
Feb / -4°399.35.49.40.0
Mar / -1°4410.24.111.50.4
Apr12° / 4210.11.213.73.2
May17° / 6411.60.115.65.4
Jun20° / 11°7212.3016.75.9
Jul22° / 13°8613.5016.36.2
Aug22° / 13°6811.7014.66.4
Sep17° / 6010012.55.4
Oct12° / 5210.40.310.32.9
Nov / 439.92.48.30.4
Dec / -2°4810.85.77.30.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31783
41684
51684
61684
71684
81783
91783
101783
111684
121684
131684
141684
151684
161684
171783
181783
191783
201783
211783
221882
231882
241882
251981
262080
272080
282080
292080
302179
312080

Chance of precipitation in December

Any precipitationSnow

Ostróda gets around 48 mm of rain and snow over 10.8 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 35% and peaks near 37% on the wettest days, and about 6 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13013
23014
33114
43115
53215
63315
73316
83416
93417
103517
113518
123518
133519
143619
153620
163620
173621
183621
193621
203621
213621
223621
233621
243621
253721
263721
273721
283721
293720
303720
313720

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 17 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
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 36 min at the start of December to 7 h 18 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 7:43 AM to 8:06 AM, and sunset from 3:17 PM to 3:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.67:433:17
27.57:443:16
37.57:463:16
47.57:473:15
57.47:483:15
67.47:503:14
77.47:513:14
87.47:523:13
97.37:533:13
107.37:543:13
117.37:553:13
127.37:563:13
137.37:573:12
147.27:583:12
157.27:593:13
167.28:003:13
177.28:013:13
187.28:013:13
197.28:023:13
207.28:033:14
217.28:033:14
227.28:043:14
237.28:043:15
247.28:053:15
257.28:053:16
267.28:053:17
277.28:053:17
287.28:063:18
297.28:063:19
307.28:063:20
317.38:063:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.45 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.45 kWh/m² to a high of 5.38 kWh/m² in June across the year — December's 0.45 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
120.4Dim
130.4Dim
140.4Dim
150.4Dim
160.4Dim
170.4Dim
180.4Dim
190.4Dim
200.4Dim
210.4Dim
220.4Dim
230.4Dim
240.4Dim
250.5Dim
260.5Dim
270.5Dim
280.5Dim
290.5Dim
300.5Dim
310.5Dim
Planning a trip in December

Is December a good time to visit Ostróda?

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 Ostróda.

What to pack for Ostróda in December

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

In December, Ostróda sees daytime highs around 2°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 Ostróda 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 Ostróda peaks around June 22 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 19 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 22UV 6Dec 19UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Ostróda 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 Ostróda is worst in March — around 22 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Ostróda's WHO annual average of 15.7 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2222 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar22Moderate
Apr20Moderate
May17Moderate
Jun18Moderate
Jul18Moderate
Aug17Moderate
Sep15Moderate
Oct12Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Ostróda?

Ostróda sits at 53.7°N, 20.0°E, 111 m above sea level, in Poland. The nearest listed city is Iława, 28 km away.

DziałdowoBrodnicaElblągLidzbark WarmińskiKwidzynSzczytno

Topography around Ostróda

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

Within 3 km, the terrain around Ostróda has only modest variations in elevation — a maximum elevation change of 63 m around an average of 110 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 238 m; within 80 km, significant variations in elevation — a maximum elevation change of 325 m.

The land around Ostróda is covered by trees (37%) within 3 km, trees (55%) and cropland (24%) within 16 km, and cropland (39%) and trees (37%) within 80 km.

3 km
63 m
16 km
238 m
80 km
325 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Iława 28 km · Olsztyn 36 km · Działdowo 53 km · Brodnica 61 km · Elbląg 62 km · Lidzbark Warmiński 62 km · Kwidzyn 68 km · Szczytno 69 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 Ostróda (53.6967°, 19.9649°, elevation 111 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).