Arroyito weather in January

In January, Arroyito sees average daytime highs of 30°C and overnight lows near 20°C, with 125 mm of rain across 10.3 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 30°C through the month. The sky is clear or mostly clear about 47% 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 Arroyito's 6th-clearest and 10th-windiest month. For the whole year in context, see Arroyito's year-round climate.

Daytime high
30°
1st warmest
Overnight low
20°
12th coldest
Rainfall
125 mm
10.3 wet days
Daylight
13 h 48 min
6:26 AM – 8:17 PM
Cloud cover
45%
6th clearest
Wind
11 km/h
10th windiest
Solar energy
6.99 kWh/m²
Travel score
4.9
out of 10

Arroyito is city in Córdoba, Argentina.

Density
978/km²
people per km²
Founded
1778

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 30°C through the month.

A typical January day in Arroyito reaches about 30°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°C. Set against its neighbours, January runs on par with December and about 2°C warmer than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123120
133120
143120
153120
163120
173120
183120
193120
203120
213020
223020
233020
243020
253020
263020
273020
283020
293020
303020
313020

Arroyito 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
Jan30° / 20°12510.313.84.9
Feb29° / 19°1211013.15.6
Mar27° / 17°1289.812.26.6
Apr24° / 14°868.111.37.4
May20° / 11°405.210.47.1
Jun17° / 213.1106.6
Jul17° / 142.710.26.6
Aug20° / 263.210.97.7
Sep23° / 11°41511.87.9
Oct25° / 14°1029.112.87.2
Nov28° / 16°115913.66.4
Dec30° / 19°13310.2145.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26337
36238
46238
56139
66238
76238
86337
96337
106436
116436
126535
136535
146535
156535
166535
176535
186634
196733
206733
216832
226832
236832
246733
256733
266733
276634
286634
296436
306436
316436

Chance of precipitation in January

Any precipitation

Arroyito gets around 125 mm of rain over 10.3 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 33% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
337
437
537
637
736
836
936
1035
1134
1234
1333
1433
1532
1631
1731
1830
1930
2030
2130
2230
2330
2430
2531
2631
2732
2833
2933
3034
3135

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19172233171
29162233181
39162233181
49162233181
59162233181
69152234181
79152234181
810152333181
910152333181
1010152333181
1110152433181
1210142433181
139142533171
149142533171
159142633171
169142634161
179142734161
188142834151
198142834151
208132934151
217132935141
227132935141
237132935141
247132936141
256132936141
266132837141
276132837151
286132837152
296132737152
306132736162
316142636162

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:15 AM to 6:39 AM, and sunset from 8:16 PM to 8:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.06:158:16
214.06:168:16
314.06:168:16
414.06:178:16
514.06:188:17
614.06:188:17
714.06:198:17
813.96:208:17
913.96:218:17
1013.96:218:17
1113.96:228:17
1213.96:238:17
1313.96:248:17
1413.96:258:17
1513.96:268:17
1613.86:268:17
1713.86:278:16
1813.86:288:16
1913.86:298:16
2013.86:308:16
2113.76:318:16
2213.76:328:15
2313.76:328:15
2413.76:338:15
2513.76:348:14
2613.66:358:14
2713.66:368:14
2813.66:378:13
2913.66:388:13
3013.66:398:12
3113.56:398:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.99 kWh/m².

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 7.08 kWh/m² in December across the year — January's 6.99 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.1Intense
137.1Intense
147.1Intense
157.1Intense
167.1Intense
177.1Intense
187.0Intense
197.0Intense
207.0Intense
217.0Intense
227.0Intense
236.9Intense
246.9Intense
256.9Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.6Intense
Planning a trip in January

Hazard calendar for Arroyito

In seasonPeak

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

Arroyito'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 Arroyito?

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

4.9
Sightseeing
12th-best month of the year
6.9
Beach & pool
4th-best month of the year

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

What to pack for Arroyito in January

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

In January, Arroyito sees daytime highs around 30°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Arroyito 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 Arroyito peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 18UV 14Jun 21UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct10Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Arroyito?

Arroyito sits at 31.4°S, 63.1°W, 147 m above sea level, in Argentina. The nearest listed city is Villa del Rosario, 48 km away.

Topography around Arroyito

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

Within 3 km, the terrain around Arroyito has only modest variations in elevation — a maximum elevation change of 35 m around an average of 153 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, significant variations in elevation — a maximum elevation change of 269 m.

The land around Arroyito is covered by cropland (51%) and artificial surfaces (20%) within 3 km, cropland (87%) within 16 km, and cropland (87%) within 80 km.

3 km
35 m
16 km
62 m
80 km
269 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Villa del Rosario 48 km · Las Varillas 59 km · Pilar 84 km · Río Segundo 86 km · San Francisco 92 km · Colonia Caroya 106 km · Cordoba 108 km · Jesús María 111 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 Arroyito (-31.4192°, -63.0508°, elevation 147 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).