Chajarí weather in January

In January, Chajarí sees average daytime highs of 31°C and overnight lows near 21°C, with 124 mm of rain across 8.6 wet days and about 13.8 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 51% of the time in January, and the air most often feels muggy.

Daylight stretches from about 14 hours at the start of January to 13 h 30 min by month's end. Set against the rest of the year, January is Chajarí's 2nd-clearest and 8th-windiest month. For the whole year in context, see Chajarí's year-round climate.

Daytime high
31°
1st warmest
Overnight low
21°
12th coldest
Rainfall
124 mm
8.6 wet days
Daylight
13 h 48 min
6:08 AM – 7:55 PM
Cloud cover
44%
2nd clearest
Wind
13 km/h
8th windiest
Solar energy
7 kWh/m²
Travel score
4.7
out of 10

Chajarí is city in Argentina.

Founded
1872

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 31°C through the month.

A typical January day in Chajarí reaches about 31°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 36°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C warmer than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63121
73121
83121
93121
103121
113121
123121
133121
143121
153121
163121
173121
183121
193121
203121
213121
223121
233121
243121
253121
263121
273121
283121
293121
303121
313121

How January really feels in Chajarí

Once humidity and wind are folded in, January averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Chajarí weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°1248.613.84.7
Feb30° / 20°117913.15.1
Mar28° / 19°1158.812.26.3
Apr25° / 15°165911.37.2
May21° / 12°997.310.56.8
Jun18° / 10°937.7106.3
Jul18° / 806.810.26.4
Aug20° / 10°886.810.97.0
Sep22° / 12°987.811.87.1
Oct25° / 15°1539.912.87.0
Nov28° / 17°1187.313.66.8
Dec30° / 19°1128.6145.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46337
56436
66436
76436
86436
96535
106535
116634
126634
136634
146733
156634
166634
176634
186634
196634
206634
216634
226634
236535
246535
256535
266535
276436
286436
296436
306337
316337

Chance of precipitation in January

Any precipitation

Chajarí gets around 124 mm of rain over 8.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
226
326
426
527
627
727
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1927
2027
2127
2227
2328
2428
2529
2629
2730
2830
2931
3031
3132

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
18132032244
28132032243
37132032243
47132032243
57132032253
67132032253
77132132253
87122132252
97122232252
107122232252
117122332242
127122432241
137112532241
146112532241
156112632231
166112633231
176112733231
186112732231
196112732231
206112732231
215112732231
225122732231
235122633231
245122532242
254122533242
264122533252
274122433252
284122433262
293122333272
303132332273
313132332273

Wind in January

Winds average 13 km/h in January.

Across January, 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.

051015151015202531
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 January

DaylightNight

Daylight runs from about 14 hours at the start of January to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over January. Sunrise moves from 5:56 AM to 6:20 AM, and sunset from 7:54 PM to 7:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:567:54
214.05:577:54
313.95:587:54
413.95:587:55
513.95:597:55
613.96:007:55
713.96:007:55
813.96:017:55
913.96:027:55
1013.96:037:55
1113.96:047:55
1213.86:047:55
1313.86:057:55
1413.86:067:55
1513.86:077:55
1613.86:087:55
1713.86:087:55
1813.86:097:55
1913.76:107:54
2013.76:117:54
2113.76:127:54
2213.76:137:54
2313.76:137:53
2413.66:147:53
2513.66:157:53
2613.66:167:52
2713.66:177:52
2813.66:187:52
2913.56:197:51
3013.56:207:51
3113.56:207:50

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 7.14 kWh/m² in December across the year — January's 7 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.1Intense
57.1Intense
67.1Intense
77.1Intense
87.1Intense
97.1Intense
107.1Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
226.9Intense
236.9Intense
246.9Intense
256.8Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.6Intense
Planning a trip in January

Is January a good time to visit Chajarí?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.7
Sightseeing
12th-best month of the year
7.0
Beach & pool
5th-best month of the year

January is a reasonable time to visit Chajarí for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Chajarí in January

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

In January, Chajarí sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Chajarí in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chajarí peaks around January 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 20UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5High
Sep7High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Chajarí?

Chajarí sits at 30.8°S, 58.0°W, 35 m above sea level, in Argentina. The nearest listed city is Monte Caseros, 65 km away.

Topography around Chajarí

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

Within 3 km, the terrain around Chajarí has only modest variations in elevation — a maximum elevation change of 38 m around an average of 58 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 58 m; within 80 km, only modest variations in elevation — a maximum elevation change of 163 m.

The land around Chajarí is covered by grassland (56%) and artificial surfaces (28%) within 3 km, grassland (57%) and trees (35%) within 16 km, and grassland (72%) within 80 km.

3 km
38 m
16 km
58 m
80 km
163 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Monte Caseros 65 km · Salto 70 km · Concordia 71 km · Federal 79 km · Curuzú Cuatiá 107 km · Uruguaiana 140 km · Paso de los Libres 144 km · Artigas 150 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 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 Chajarí (-30.7548°, -57.982°, elevation 35 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).