Isidro Casanova weather in January

In January, Isidro Casanova sees average daytime highs of 29°C and overnight lows near 19°C, with 87 mm of rain across 7.4 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 53% of the time in January, and the air most often feels muggy.

Daylight stretches from about 14 h 18 min at the start of January to 13 h 42 min by month's end. Set against the rest of the year, January is Isidro Casanova's 1st-clearest and 6th-windiest month. For the whole year in context, see Isidro Casanova's year-round climate.

Daytime high
29°
1st warmest
Overnight low
19°
12th coldest
Rainfall
87 mm
7.4 wet days
Daylight
14 h 06 min
6:01 AM – 8:06 PM
Cloud cover
42%
1st clearest
Wind
13 km/h
6th windiest
Solar energy
7.3 kWh/m²
Travel score
6.3
out of 10

Isidro Casanova is city in Buenos Aires Province, Argentina.

Density
6,761/km²
people per km²
Founded
1911

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 29°C through the month.

A typical January day in Isidro Casanova reaches about 29°C in the afternoon and slips back to 19°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C warmer than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12919
22919
32919
42919
52919
62919
72919
82919
92919
102919
112919
122919
132919
142919
152919
162919
172919
182919
192919
202919
212919
222919
232919
242919
252919
262919
272819
282819
292819
302819
312819

Isidro Casanova weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°877.414.16.3
Feb28° / 18°928.213.36.8
Mar26° / 17°857.412.37.4
Apr22° / 13°917.911.27.2
May18° / 10°616.110.26.4
Jun15° / 605.99.75.0
Jul14° / 606.19.94.6
Aug16° / 625.810.75.7
Sep18° / 726.711.86.4
Oct21° / 12°1099.112.96.7
Nov24° / 15°938.413.87.3
Dec27° / 17°858.614.36.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46634
56634
66634
76634
86733
96733
106733
116733
126733
136832
146832
156832
166931
176931
186931
196832
206832
216931
226832
236832
246832
256832
266832
276733
286733
296733
306733
316634

Chance of precipitation in January

Any precipitation

Isidro Casanova gets around 87 mm of rain over 7.4 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 25% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
426
526
626
726
826
925
1025
1125
1224
1324
1423
1523
1622
1722
1822
1922
2022
2122
2222
2323
2424
2524
2625
2726
2827
2928
3029
3130

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 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11118283390
21118283490
311192734100
411192734100
51119273490
61119273490
71120273390
81120263390
91120263390
101220263390
111221263390
121221263380
131221263380
141221263380
151221263370
161221263370
171221263370
181220273470
191220263380
201220263380
211219273480
221219263490
231218263491
2412182634101
2512172634101
2612172635101
2712162535111
2812162535111
2912162535121
3012162435121
3112162435131

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.

05101520151015202531
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 h 18 min at the start of January to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over January. Sunrise moves from 5:49 AM to 6:15 AM, and sunset from 8:06 PM to 8:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:498:06
214.35:508:06
314.35:508:07
414.35:518:07
514.35:528:07
614.25:528:07
714.25:538:07
814.25:548:07
914.25:558:07
1014.25:568:07
1114.25:578:07
1214.25:578:07
1314.15:588:07
1414.15:598:07
1514.16:008:06
1614.16:018:06
1714.16:028:06
1814.16:038:06
1914.06:048:06
2014.06:058:05
2114.06:068:05
2214.06:078:05
2313.96:088:04
2413.96:098:04
2513.96:098:03
2613.96:108:03
2713.86:118:02
2813.86:128:02
2913.86:138:01
3013.86:148:01
3113.76:158:00

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.3 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 7.47 kWh/m² in December across the year — January's 7.3 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.4Intense
47.4Intense
57.4Intense
67.4Intense
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.4Intense
157.4Intense
167.4Intense
177.3Intense
187.3Intense
197.3Intense
207.3Intense
217.3Intense
227.2Intense
237.2Intense
247.2Intense
257.1Intense
267.1Intense
277.0Intense
287.0Intense
296.9Intense
306.9Intense
316.8Intense
Planning a trip in January

Is January a good time to visit Isidro Casanova?

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

6.3
Sightseeing
9th-best month of the year
7.6
Beach & pool
1st-best month of the year

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

What to pack for Isidro Casanova in January

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

In January, Isidro Casanova sees daytime highs around 29°C and nights near 19°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Isidro Casanova in January

The nearest coast averages about 25°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 9 to Apr 20 — about 5.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar23Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Isidro Casanova 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 Isidro Casanova peaks around January 14 at about 12 (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 — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 12Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Isidro Casanova 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 Isidro Casanova is worst in June — around 25 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2325 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr17Moderate
May22Moderate
Jun25Moderate
Jul25Moderate
Aug24Moderate
Sep19Moderate
Oct16Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Isidro Casanova?

Isidro Casanova sits at 34.7°S, 58.6°W, 25 m above sea level, in Argentina. The nearest listed city is San Justo, 3.0 km away.

Topography around Isidro Casanova

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

Within 3 km, the terrain around Isidro Casanova has only modest variations in elevation — a maximum elevation change of 28 m around an average of 27 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 62 m; within 80 km, only modest variations in elevation — a maximum elevation change of 98 m.

The land around Isidro Casanova is covered by artificial surfaces (91%) within 3 km, artificial surfaces (63%) within 16 km, and grassland (31%) and cropland (25%) within 80 km.

3 km
28 m
16 km
62 m
80 km
98 m
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: San Justo 3.0 km · Morón 6.0 km · Haedo 6.0 km · Castelar 7.0 km · Villa Sarmiento 8.0 km · El Palomar 9.0 km · Villa Lugano 11 km · San Antonio de Padua 11 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 Isidro Casanova (-34.7°, -58.5874°, elevation 25 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).