Mar de Ajó weather in January

In January, Mar de Ajó sees average daytime highs of 23°C and overnight lows near 19°C, with 78 mm of rain across 7.8 wet days and about 14.2 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 51% of the time in January, and the air most often feels muggy.

Daylight stretches from about 14 h 30 min at the start of January to 13 h 54 min by month's end. Set against the rest of the year, January is Mar de Ajó's 1st-clearest and 3rd-windiest month. For the whole year in context, see Mar de Ajó's year-round climate.

Daytime high
23°
1st warmest
Overnight low
19°
11th coldest
Rainfall
78 mm
7.8 wet days
Daylight
14 h 18 min
5:48 AM – 8:04 PM
Cloud cover
44%
1st clearest
Wind
21 km/h
3rd windiest
Solar energy
7.38 kWh/m²
Travel score
7.5
out of 10

Mar de Ajó is human settlement in Argentina.

Founded
1935

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 23°C through the month.

A typical January day in Mar de Ajó reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, January runs about 2°C warmer than December and on par with February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12319
22319
32319
42319
52319
62319
72319
82319
92319
102319
112319
122319
132319
142319
152319
162319
172319
182319
192319
202319
212319
222319
232319
242319
252319
262319
272319
282319
292319
302319
312319

Mar de Ajó 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
Jan23° / 19°787.814.27.5
Feb23° / 19°847.813.47.3
Mar22° / 18°758.212.37.0
Apr19° / 15°917.811.16.4
May16° / 12°607.310.15.2
Jun13° / 737.19.53.8
Jul11° / 687.59.73.0
Aug12° / 756.910.63.5
Sep13° / 10°737.211.84.1
Oct16° / 12°879.212.95.2
Nov19° / 15°808.2146.4
Dec21° / 17°648.114.57.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36535
46535
56535
66634
76634
86634
96634
106733
116832
126832
136832
146931
156931
166931
176931
186931
196832
206832
216832
226733
236733
246733
256634
266634
276634
286535
296436
306337
316337

Chance of precipitation in January

Any precipitation

Mar de Ajó gets around 78 mm of rain over 7.8 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 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
727
826
926
1026
1126
1225
1325
1425
1524
1624
1724
1823
1923
2023
2123
2223
2323
2424
2524
2625
2725
2826
2927
3027
3128

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 38% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1161932312
2161932312
3161932312
4161931312
5162031313
6162030313
7162030313
8162129313
9162129322
10172128322
11172128322
12172127322
13172127332
14172126332
15172126342
16172126343
17172125353
18172025353
19172025363
20171924363
21161924374
22161924374
23161824375
24161824375
25161724386
26161724386
27161724376
28161723377
29161723377
30161723368
31161723358

Wind in January

Winds average 21 km/h in January.

Across January, daily wind ranges from about 21 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy
3122breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 30 min at the start of January to 13 h 54 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 5:36 AM to 6:04 AM, and sunset from 8:04 PM to 7:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:368:04
214.55:368:04
314.55:378:04
414.45:388:05
514.45:398:05
614.45:398:05
714.45:408:05
814.45:418:05
914.45:428:05
1014.45:438:05
1114.35:448:05
1214.35:458:04
1314.35:468:04
1414.35:468:04
1514.35:478:04
1614.35:488:04
1714.25:498:03
1814.25:508:03
1914.25:518:03
2014.25:528:02
2114.15:538:02
2214.15:548:02
2314.15:558:01
2414.15:568:01
2514.05:578:00
2614.05:588:00
2714.05:597:59
2814.06:007:58
2913.96:017:58
3013.96:037:57
3113.96:047:57

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.38 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 7.65 kWh/m² in December across the year — January's 7.38 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.6Intense
27.6Intense
37.6Intense
47.6Intense
57.6Intense
67.6Intense
77.6Intense
87.6Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.4Intense
197.4Intense
207.4Intense
217.3Intense
227.3Intense
237.3Intense
247.2Intense
257.2Intense
267.1Intense
277.1Intense
287.0Intense
297.0Intense
307.0Intense
316.9Intense
Planning a trip in January

Is January a good time to visit Mar de Ajó?

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

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

January is one of the better times to visit Mar de Ajó for general sightseeing.

What to pack for Mar de Ajó in January

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

In January, Mar de Ajó sees daytime highs around 23°C and nights near 19°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 8 days see rain.

sun protectionlight clothesa windbreaker

Sea temperature near Mar de Ajó in January

The nearest coast averages about 22°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 13 km away) is warmest in February at about 22°C and coldest in July near 11°C.

It's comfortable for a long swim from Dec 18 to Mar 31 — about 3.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar21Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug11Bracing
Sep12Bracing
Oct15Bracing
Nov17Cool
Dec20Cool

UV index in Mar de Ajó in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mar de Ajó peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (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 20UV 2
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar9Very high
Apr5High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Mar de Ajó?

Mar de Ajó sits at 36.7°S, 56.7°W, 24 m above sea level, in Argentina. The nearest listed city is Mar del Tuyú, 17 km away.

Topography around Mar de Ajó

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

Within 3 km, the terrain around Mar de Ajó has only modest variations in elevation — a maximum elevation change of 16 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 34 m; within 80 km, only modest variations in elevation — a maximum elevation change of 33 m.

The land around Mar de Ajó is covered by grassland (38%), water (33%) and artificial surfaces (20%) within 3 km, water (48%) and grassland (37%) within 16 km, and water (44%) and grassland (39%) within 80 km.

3 km
16 m
16 km
34 m
80 km
33 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Mar del Tuyú 17 km · Santa Teresita 21 km · Pinamar 46 km · General Juan Madariaga 50 km · Villa Gesell 65 km · Dolores 100 km · Santa Clara del Mar 143 km · Mar del Plata 161 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 Mar de Ajó (-36.7288°, -56.6827°, elevation 24 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).