Ciechanów weather in January

In January, Ciechanów sees average daytime highs of 0°C and overnight lows near -4°C, with 40 mm of precipitation across 9.9 wet days and about 7.9 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 0°C through the month. The sky is clear or mostly clear about 11% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 h 24 min at the start of January to 8 h 36 min by month's end. Set against the rest of the year, January is Ciechanów's 10th-clearest and 1st-windiest month. For the whole year in context, see Ciechanów's year-round climate.

Daytime high
12th warmest
Overnight low
-4°
1st coldest
Precipitation
40 mm
9.9 wet days
Daylight
7 h 54 min
7:51 AM – 3:43 PM
Cloud cover
80%
10th clearest
Wind
16 km/h
1st windiest
Solar energy
0.7 kWh/m²
Travel score
0.0
out of 10

Ciechanów is city and urban gmina of Poland.

Air quality
Moderate
PM10 30.9 µg/m³ · 2014
Density
1,407/km²
people per km²
Founded
1065

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 0°C through the month.

A typical January day in Ciechanów 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 -7°C and 6°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°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
120-4
130-4
140-4
150-4
160-4
170-4
180-4
190-4
200-4
210-4
220-4
230-4
240-5
250-5
260-5
270-5
280-5
290-5
300-5
310-4

How January really feels in Ciechanów

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
11 feel bitter (≤ -10°C)

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

Ciechanów weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°409.96.17.90.0
Feb / -4°3595.49.50.0
Mar / -1°409.93.111.50.6
Apr13° / 439.50.913.63.6
May18° / 6812.1015.55.6
Jun21° / 11°6811.8016.66.1
Jul23° / 13°8312.4016.16.5
Aug23° / 13°5810.5014.56.7
Sep18° / 549.1012.45.7
Oct12° / 459.20.310.33.1
Nov / 389.12.28.40.5
Dec / -3°439.84.97.40.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% 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 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
31981
41981
51981
61981
71981
82080
92080
102080
112080
122080
132179
142179
152179
162179
172179
182179
192179
202179
212080
222080
232080
242080
251981
261981
271981
281981
291981
301981
311882

Chance of precipitation in January

Any precipitationSnow

Ciechanów gets around 40 mm of rain and snow over 9.9 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 31% and peaks near 34% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13417
23417
33417
43317
53318
63318
73318
83217
93117
103117
113017
123017
132917
142918
152918
162818
172818
182819
192819
202919
212920
223020
233020
243121
253121
263221
273321
283321
293320
303420
313420

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 16 km/h in January, the windiest month of the year.

Across January, 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 January

DaylightNight

Daylight runs from about 7 h 24 min at the start of January to 8 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over January. Sunrise moves from 7:58 AM to 7:33 AM, and sunset from 3:24 PM to 4:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.47:583:24
27.47:583:25
37.57:583:26
47.57:573:27
57.57:573:28
67.57:573:29
77.67:563:30
87.67:563:31
97.67:563:33
107.67:553:34
117.77:543:35
127.77:543:37
137.87:533:38
147.87:523:40
157.87:523:41
167.97:513:43
177.97:503:44
187.97:493:46
198.07:483:48
208.07:473:49
218.17:463:51
228.17:453:53
238.27:443:54
248.27:433:56
258.37:413:58
268.37:403:59
278.47:394:01
288.47:374:03
298.57:364:05
308.57:354:07
318.67:334:09

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.7 kWh/m².

For context, solar energy here swings from a low near 0.49 kWh/m² to a high of 5.49 kWh/m² in June across the year — January's 0.7 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.5Dim
20.5Dim
30.5Dim
40.6Dim
50.6Dim
60.6Dim
70.6Dim
80.6Dim
90.6Dim
100.6Dim
110.6Dim
120.6Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.7Dim
180.7Dim
190.7Dim
200.8Dim
210.8Dim
220.8Dim
230.8Dim
240.8Dim
250.8Dim
260.9Dim
270.9Dim
280.9Dim
290.9Dim
301.0Dim
311.0Dim
Planning a trip in January

Is January a good time to visit Ciechanów?

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 Ciechanów.

What to pack for Ciechanów in January

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

In January, Ciechanów 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 Ciechanów 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 Ciechanów peaks around June 22 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 6Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Ciechanów?

Ciechanów sits at 52.9°N, 20.6°E, 119 m above sea level, in Poland. The nearest listed city is Przasnysz, 23 km away.

DziałdowoNowy Dwór MazowieckiLegionowoŁomianki

Topography around Ciechanów

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

Within 3 km, the terrain around Ciechanów has only modest variations in elevation — a maximum elevation change of 55 m around an average of 122 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, only modest variations in elevation — a maximum elevation change of 199 m.

The land around Ciechanów is covered by cropland (34%), artificial surfaces (26%) and trees (20%) within 3 km, cropland (59%) and trees (22%) within 16 km, and cropland (39%), trees (37%) and grassland (21%) within 80 km.

3 km
55 m
16 km
93 m
80 km
199 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Przasnysz 23 km · Mława 30 km · Płońsk 33 km · Pułtusk 37 km · Działdowo 50 km · Nowy Dwór Mazowiecki 51 km · Legionowo 57 km · Łomianki 63 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 Ciechanów (52.8814°, 20.62°, elevation 119 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).