Jonava weather in January

In January, Jonava sees average daytime highs of -1°C and overnight lows near -5°C, with 44 mm of precipitation across 10.8 wet days and about 7.5 hours of daylight. It is the 12th-warmest and 9th-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 7% of the time in January, and the air most often feels dry.

Daylight stretches from about 7 hours at the start of January to 8 h 18 min by month's end. Set against the rest of the year, January is Jonava's 10th-clearest and 1st-windiest month. For the whole year in context, see Jonava's year-round climate.

Daytime high
-1°
12th warmest
Overnight low
-5°
2nd coldest
Precipitation
44 mm
10.8 wet days
Daylight
7 h 30 min
8:48 AM – 4:16 PM
Cloud cover
84%
10th clearest
Wind
15 km/h
1st windiest
Solar energy
0.54 kWh/m²
Travel score
0.0
out of 10

Jonava is city in Kaunas County, Lithuania.

Air quality
Excellent
PM10 14.5 µg/m³ · 2019
Density
1,933/km²
people per km²
Founded
1740

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 Jonava reaches about -1°C in the afternoon and slips back to -5°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -8°C and 5°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
10-4
20-4
30-4
40-4
5-1-4
6-1-4
70-4
80-4
90-4
100-4
11-1-4
12-1-4
13-1-4
14-1-4
15-1-4
16-1-5
17-1-5
18-1-5
19-1-5
20-1-5
21-1-5
22-1-5
23-1-5
24-1-5
25-1-5
26-1-5
27-1-5
28-1-5
29-1-5
30-1-5
31-1-5

How January really feels in Jonava

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
16 feel bitter (≤ -10°C)

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

Jonava 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-1° / -5°4410.86.97.50.0
Feb / -5°381079.30.0
Mar / -2°4010.14.511.40.3
Apr12° / 439.81.213.83.2
May18° / 5711.30.115.85.6
Jun21° / 11°7212.50176.0
Jul23° / 14°8512.1016.56.5
Aug22° / 13°7611.8014.76.4
Sep17° / 509.8012.55.3
Oct11° / 5610.80.510.22.4
Nov / 4510.52.98.10.2
Dec / -3°4610.96.670.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21486
31486
41486
51387
61486
71486
81387
91387
101387
111387
121486
131486
141486
151486
161486
171684
181684
191684
201684
211684
221783
231783
241684
251684
261585
271684
281684
291684
301684
311684

Chance of precipitation in January

Any precipitationSnow

Jonava gets around 44 mm of rain and snow over 10.8 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 35% and peaks near 39% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13924
23923
33923
43923
53923
63923
73923
83823
93722
103722
113621
123521
133421
143421
153321
163321
173221
183221
193121
203121
213121
223122
233222
243223
253323
263324
273424
283525
293525
303526
313626

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

Across January, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 7 hours at the start of January to 8 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over January. Sunrise moves from 8:57 AM to 8:28 AM, and sunset from 3:55 PM to 4:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.08:573:55
27.08:563:57
37.08:563:58
47.08:563:59
57.18:564:00
67.18:554:01
77.18:554:03
87.28:544:04
97.28:544:05
107.28:534:07
117.38:524:08
127.38:524:10
137.38:514:11
147.48:504:13
157.48:494:15
167.58:484:16
177.58:474:18
187.68:464:20
197.68:454:22
207.78:444:23
217.78:424:25
227.88:414:27
237.88:404:29
247.98:394:31
257.98:374:33
268.08:364:35
278.08:344:37
288.18:334:39
298.28:314:41
308.28:304:43
318.38:284:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.54 kWh/m².

For context, solar energy here swings from a low near 0.35 kWh/m² to a high of 5.44 kWh/m² in June across the year — January's 0.54 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.4Dim
20.4Dim
30.4Dim
40.4Dim
50.4Dim
60.4Dim
70.4Dim
80.4Dim
90.4Dim
100.5Dim
110.5Dim
120.5Dim
130.5Dim
140.5Dim
150.5Dim
160.5Dim
170.5Dim
180.6Dim
190.6Dim
200.6Dim
210.6Dim
220.6Dim
230.6Dim
240.7Dim
250.7Dim
260.7Dim
270.7Dim
280.7Dim
290.8Dim
300.8Dim
310.8Dim
Planning a trip in January

Is January a good time to visit Jonava?

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 Jonava.

What to pack for Jonava in January

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

In January, Jonava sees daytime highs around -1°C and nights near -5°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 Jonava 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 Jonava peaks around June 20 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. 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 20UV 6Dec 19UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Jonava 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 Jonava is worst in June — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2215 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar14Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Jonava?

Jonava sits at 55.1°N, 24.3°E, 67 m above sea level, in Lithuania. The nearest listed city is Dainava (Kaunas), 27 km away.

Dainava (Kaunas)EiguliaiŠilainiaiKėdainiaiKaunasAleksotasUkmergeTrakai

Topography around Jonava

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

Within 3 km, the terrain around Jonava has only modest variations in elevation — a maximum elevation change of 77 m around an average of 69 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 103 m; within 80 km, significant variations in elevation — a maximum elevation change of 261 m.

The land around Jonava is covered by trees (34%) and grassland (30%) within 3 km, trees (52%) and cropland (32%) within 16 km, and trees (41%) and cropland (40%) within 80 km.

3 km
77 m
16 km
103 m
80 km
261 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Dainava (Kaunas) 27 km · Eiguliai 27 km · Šilainiai 30 km · Kėdainiai 30 km · Kaunas 31 km · Aleksotas 32 km · Ukmerge 36 km · Trakai 65 km

Lithuania travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$32,959
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2.6
per 100k, 2023
Road deaths
8.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 543
Religion
Roman Catholic 74%none 6%Russian Orthodox 4%other 1%

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 Jonava (55.0801°, 24.2754°, elevation 67 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).