Zárate weather in January

In January, Zárate sees average daytime highs of 30°C and overnight lows near 19°C, with 95 mm of rain across 7.7 wet days and about 14 hours of daylight. It is the 1st-warmest and 7th-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 52% of the time in January, and the air most often feels muggy.

Daylight stretches from about 14 h 12 min at the start of January to 13 h 42 min by month's end. Set against the rest of the year, January is Zárate's 1st-clearest and 8th-windiest month. For the whole year in context, see Zárate's year-round climate.

Daytime high
30°
1st warmest
Overnight low
19°
12th coldest
Rainfall
95 mm
7.7 wet days
Daylight
14 hours
6:04 AM – 8:07 PM
Cloud cover
43%
1st clearest
Wind
12 km/h
8th windiest
Solar energy
7.26 kWh/m²
Travel score
5.7
out of 10

Zárate is city in Buenos Aires Province, Argentina.

Founded
1854

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 Zárate reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°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)
13019
23019
33019
43019
53019
63019
73019
83019
93019
103019
113019
123019
133019
143019
153019
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
262919
272919
282919
292919
302919
312919

Zárate weather by month

How January compares with the rest of the year at a glance. January is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°957.7145.7
Feb28° / 18°1108.613.36.1
Mar26° / 16°1087.512.37.2
Apr23° / 13°103811.27.3
May19° / 10°705.810.36.6
Jun16° / 566.29.85.5
Jul15° / 595.9105.2
Aug18° / 69610.76.3
Sep20° / 756.511.86.8
Oct22° / 12°1319.312.97.0
Nov26° / 15°1037.713.87.3
Dec28° / 17°1048.714.26.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% 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 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56436
66436
76436
86535
96535
106535
116535
126535
136634
146634
156634
166634
176733
186733
196733
206733
216832
226733
236733
246733
256634
266733
276634
286535
296535
306436
316337

Chance of precipitation in January

Any precipitation

Zárate gets around 95 mm of rain over 7.7 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 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
726
826
926
1025
1125
1224
1324
1423
1523
1623
1722
1822
1922
2022
2123
2223
2324
2425
2525
2626
2727
2828
2929
3030
3131

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 43% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111192633100
210192633110
310192633110
410192633110
510192633110
610192633110
711192633110
811192733100
911192733100
1011192732100
1112192832100
121219283290
131219283290
141219283290
151219283290
161219293280
171219293280
181219293290
191219283290
201219283191
211219283191
2212192731101
2312182832101
2412182732101
2512182732111
2612172633111
2712172633121
2812172633121
2912162533131
3012162532131
3112162532141

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 12 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 30 minutes over January. Sunrise moves from 5:52 AM to 6:18 AM, and sunset from 8:06 PM to 8:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:528:06
214.25:538:07
314.25:548:07
414.25:548:07
514.25:558:07
614.25:568:07
714.25:578:07
814.25:578:07
914.25:588:07
1014.15:598:07
1114.16:008:07
1214.16:018:07
1314.16:028:07
1414.16:028:07
1514.16:038:07
1614.06:048:07
1714.06:058:06
1814.06:068:06
1914.06:078:06
2014.06:088:06
2113.96:098:05
2213.96:108:05
2313.96:118:05
2413.96:128:04
2513.96:138:04
2613.86:138:03
2713.86:148:03
2813.86:158:02
2913.86:168:02
3013.76:178:01
3113.76:188:01

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.26 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.42 kWh/m² in December across the year — January's 7.26 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.4Intense
157.3Intense
167.3Intense
177.3Intense
187.3Intense
197.3Intense
207.3Intense
217.2Intense
227.2Intense
237.2Intense
247.1Intense
257.1Intense
267.0Intense
277.0Intense
286.9Intense
296.9Intense
306.8Intense
316.8Intense
Planning a trip in January

Is January a good time to visit Zárate?

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

5.7
Sightseeing
10th-best month of the year
7.5
Beach & pool
1st-best month of the year

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

What to pack for Zárate in January

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

In January, Zárate sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Zárate 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 60 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 8 to Apr 22 — about 5.5 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar24Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug14Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Zárate 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 Zárate peaks around January 15 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Zárate 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 Zárate is worst in August — around 22 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (April, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1721 µg/m³Apr 157 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb8Good
Mar9Good
Apr7Good
May9Good
Jun10Good
Jul13Moderate
Aug22Moderate
Sep14Moderate
Oct12Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Zárate?

Zárate sits at 34.1°S, 59.0°W, 27 m above sea level, in Argentina. The nearest listed city is Campana, 10 km away.

Topography around Zárate

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

Within 3 km, the terrain around Zárate has only modest variations in elevation — a maximum elevation change of 42 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 57 m; within 80 km, only modest variations in elevation — a maximum elevation change of 83 m.

The land around Zárate is covered by artificial surfaces (42%) within 3 km, wetland (30%), grassland (23%) and cropland (23%) within 16 km, and cropland (30%) and wetland (29%) within 80 km.

3 km
42 m
16 km
57 m
80 km
83 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Campana 10 km · Pilar 42 km · San Antonio de Areco 44 km · Tortuguitas 49 km · Ingeniero Pablo Nogués 52 km · José C. Paz 52 km · General Pacheco 53 km · Luján 53 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 Zárate (-34.0958°, -59.0242°, elevation 27 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).