Tafí Viejo weather in January

In January, Tafí Viejo sees average daytime highs of 28°C and overnight lows near 19°C, with 323 mm of rain across 19.8 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels muggy.

Daylight stretches from about 13 h 42 min at the start of January to 13 h 18 min by month's end. Set against the rest of the year, January is Tafí Viejo's 12th-clearest and 6th-windiest month. For the whole year in context, see Tafí Viejo's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
19°
12th coldest
Rainfall
323 mm
19.8 wet days
Daylight
13 h 30 min
6:45 AM – 8:16 PM
Cloud cover
68%
12th clearest
Wind
5 km/h
6th windiest
Solar energy
5.8 kWh/m²
Travel score
4.8
out of 10

Tafí Viejo is town in Tucumán, Argentina.

Founded
1900

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 28°C through the month.

A typical January day in Tafí Viejo reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 32°C. Set against its neighbours, January runs on par with December and about 1°C warmer than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Tafí Viejo weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 19°32319.813.54.8
Feb27° / 18°26518.212.95.0
Mar25° / 17°27019.812.25.2
Apr22° / 14°18915.511.45.8
May19° / 11°13313.510.75.8
Jun17° / 749.810.45.8
Jul18° / 507.610.56.4
Aug21° / 466.811.17.4
Sep23° / 11°818.711.87.4
Oct25° / 14°16914.512.66.3
Nov27° / 16°20615.613.35.7
Dec28° / 18°2491813.65.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of January, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33862
43763
53763
63763
73664
83763
93763
103763
113763
123763
133862
143763
153763
163763
173763
183763
193763
203862
213862
223763
233763
243763
253862
263862
273862
283862
293862
303862
313862

Chance of precipitation in January

Any precipitation

Tafí Viejo gets around 323 mm of rain over 19.8 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 64% and peaks near 66% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
162
262
363
463
563
663
763
863
963
1063
1163
1263
1364
1464
1564
1664
1764
1864
1964
2064
2165
2265
2365
2465
2565
2665
2765
2865
2965
3066
3166

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
13729538
22629558
32629549
42628559
52628559
626285410
726285410
826285410
916285411
1016285411
1116285411
1216285411
1317285212
1417285212
1517285212
1616285312
1716285411
1816295311
1916295311
2016295311
2116295311
2216295311
2316295410
2415295510
2515295510
2615285511
2715285511
2815275611
2925275511
3026275411
3126275312

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 42 min at the start of January to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over January. Sunrise moves from 6:35 AM to 6:56 AM, and sunset from 8:14 PM to 8:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:358:14
213.66:358:14
313.66:368:14
413.66:378:15
513.66:378:15
613.66:388:15
713.66:398:15
813.66:398:15
913.66:408:15
1013.66:418:16
1113.66:418:16
1213.66:428:16
1313.56:438:16
1413.56:448:16
1513.56:448:16
1613.56:458:16
1713.56:468:16
1813.56:478:15
1913.56:478:15
2013.56:488:15
2113.46:498:15
2213.46:508:15
2313.46:508:15
2413.46:518:15
2513.46:528:14
2613.46:538:14
2713.36:538:14
2813.36:548:13
2913.36:558:13
3013.36:568:13
3113.36:568:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.8 kWh/m².

For context, solar energy here swings from a low near 3.06 kWh/m² to a high of 6.1 kWh/m² in December across the year — January's 5.8 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.0Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in January

Hazard calendar for Tafí Viejo

In seasonPeak

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

Tafí Viejo'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 Tafí Viejo?

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

4.8
Sightseeing
12th-best month of the year
5.2
Beach & pool
5th-best month of the year

January is a reasonable time to visit Tafí Viejo for sightseeing.

What to pack for Tafí Viejo in January

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

In January, Tafí Viejo sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Tafí Viejo in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tafí Viejo peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 16UV 14Jul 10UV 4
UV index (midday)Level
Jan15Extreme
Feb13Extreme
Mar12Extreme
Apr7Very high
May6High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme

Air quality in Tafí Viejo 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 Tafí Viejo is worst in August — around 37 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (May, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodAug 2437 µg/m³May 1010 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Moderate
Mar11Good
Apr10Good
May10Good
Jun12Good
Jul22Moderate
Aug37Poor
Sep36Poor
Oct22Moderate
Nov13Moderate
Dec11Good
Location & terrain

Where is Tafí Viejo?

Tafí Viejo sits at 26.7°S, 65.3°W, 617 m above sea level, in Argentina. The nearest listed city is Yerba Buena, 9.0 km away.

Topography around Tafí Viejo

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

Within 3 km, the terrain around Tafí Viejo has significant variations in elevation — a maximum elevation change of 322 m around an average of 637 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,513 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,701 m.

The land around Tafí Viejo is covered by trees (49%), grassland (23%) and artificial surfaces (21%) within 3 km, trees (61%) within 16 km, and trees (38%) and cropland (36%) within 80 km.

3 km
322 m
16 km
1,513 m
80 km
4,701 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Yerba Buena 9.0 km · San Miguel de Tucuman 10 km · Alderetes 15 km · Bella Vista 34 km · Famaillá 38 km · Monteros 54 km · Santa María 78 km · Aguilares 85 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 Tafí Viejo (-26.7333°, -65.2615°, elevation 617 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).