La Rioja weather in January

In January, La Rioja sees average daytime highs of 32°C and overnight lows near 22°C, with 102 mm of rain across 11.2 wet days and about 13.7 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 42% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of January to 13 h 24 min by month's end. Set against the rest of the year, January is La Rioja's 12th-clearest and 6th-windiest month. For the whole year in context, see La Rioja's year-round climate.

Daytime high
32°
1st warmest
Overnight low
22°
12th coldest
Rainfall
102 mm
11.2 wet days
Daylight
13 h 42 min
6:46 AM – 8:28 PM
Cloud cover
50%
12th clearest
Wind
7 km/h
6th windiest
Solar energy
6.33 kWh/m²
Travel score
3.9
out of 10

La Rioja is city in Capital Department, La Rioja Province, Argentina.

Density
13,116/km²
people per km²
Founded
1591

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 32°C through the month.

A typical January day in La Rioja reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 37°C. Set against its neighbours, January runs on par with December and about 1°C warmer than February.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13322
23322
33322
43322
53322
63222
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303221
313221

How January really feels in La Rioja

Once humidity and wind are folded in, January averages 30 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
30
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.

La Rioja weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°10211.213.73.9
Feb31° / 21°769.613.14.8
Mar28° / 19°789.812.26.1
Apr24° / 15°477.911.37.4
May20° / 11°295.510.57.1
Jun17° / 153.410.26.5
Jul17° / 102.210.37.0
Aug21° / 102.110.98.3
Sep24° / 12°243.411.88.5
Oct28° / 16°48612.77.1
Nov30° / 19°617.713.55.3
Dec32° / 21°859.313.84.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 21% of January, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26337
36337
46238
56238
66139
76139
86139
96040
106040
116040
126040
136139
146139
156238
166238
176238
186337
196337
206436
216436
226535
236535
246535
256634
266634
276634
286634
296535
306436
316436

Chance of precipitation in January

Any precipitation

La Rioja gets around 102 mm of rain over 11.2 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
235
335
436
536
637
737
837
937
1037
1137
1237
1337
1437
1537
1637
1737
1837
1936
2036
2136
2235
2335
2435
2535
2635
2736
2836
2936
3036
3136

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1141531327
2131631337
3121631347
4111730347
5101830348
6101830348
791930358
882029348
982129348
1072229348
1162330348
1262330338
1352430338
1452431338
1552431338
1652431328
1752431327
1852431327
1952431327
2052431327
2152432327
2252432327
2352332327
2462332337
2562331337
2662231337
2772131337
2872131338
2972031348
3082030348
3182030348

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 54 min at the start of January to 13 h 24 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 6:35 AM to 6:58 AM, and sunset from 8:26 PM to 8:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:358:26
213.86:368:26
313.86:368:27
413.86:378:27
513.86:388:27
613.86:388:27
713.86:398:27
813.86:408:27
913.86:418:28
1013.86:418:28
1113.86:428:28
1213.76:438:28
1313.76:448:28
1413.76:448:28
1513.76:458:28
1613.76:468:28
1713.76:478:27
1813.76:488:27
1913.66:488:27
2013.66:498:27
2113.66:508:27
2213.66:518:26
2313.66:528:26
2413.66:528:26
2513.56:538:26
2613.56:548:25
2713.56:558:25
2813.56:568:25
2913.56:578:24
3013.46:578:24
3113.46:588:23

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.33 kWh/m².

For context, solar energy here swings from a low near 3.01 kWh/m² to a high of 6.72 kWh/m² in December across the year — January's 6.33 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in January

Hazard calendar for La Rioja

In seasonPeak

In January, La Rioja sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

La Rioja's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit La Rioja?

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

3.9
Sightseeing
12th-best month of the year
6.4
Beach & pool
7th-best month of the year

January is a weaker month for outdoor sightseeing in La Rioja. The water and warmth also suit a beach or pool day.

What to pack for La Rioja in January

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

In January, La Rioja sees daytime highs around 32°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in La Rioja in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in La Rioja peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateVery highExtremeJan 20UV 14Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr7High
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is La Rioja?

La Rioja sits at 29.4°S, 66.9°W, 493 m above sea level, in Argentina. The nearest listed city is Chilecito, 68 km away.

Cruz del EjeAguilaresDeán Funes

Topography around La Rioja

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

Within 3 km, the terrain around La Rioja has only modest variations in elevation — a maximum elevation change of 141 m around an average of 516 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,895 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,858 m.

The land around La Rioja is covered by artificial surfaces (70%) within 3 km, shrubs (58%) and trees (24%) within 16 km, and shrubs (76%) within 80 km.

3 km
141 m
16 km
1,895 m
80 km
3,858 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
January weather nearby: Chilecito 68 km · Aimogasta 95 km · Catamarca 148 km · San Isidro 153 km · Belén 197 km · Cruz del Eje 246 km · Aguilares 252 km · Deán Funes 266 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 La Rioja (-29.4133°, -66.8564°, elevation 493 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).