Ramallo weather in January

In January, Ramallo sees average daytime highs of 30°C and overnight lows near 19°C, with 100 mm of rain across 7.9 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 Ramallo's 1st-clearest and 9th-windiest month. For the whole year in context, see Ramallo's year-round climate.

Daytime high
30°
1st warmest
Overnight low
19°
12th coldest
Rainfall
100 mm
7.9 wet days
Daylight
14 hours
6:10 AM – 8:09 PM
Cloud cover
42%
1st clearest
Wind
11 km/h
9th windiest
Solar energy
7.22 kWh/m²
Travel score
5.5
out of 10

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 Ramallo 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 26°C and 34°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C warmer than February.

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
263019
273019
283019
293019
303019
313019

Ramallo 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°1007.9145.5
Feb29° / 19°107813.26.0
Mar27° / 17°1107.612.37.1
Apr23° / 13°1068.111.27.3
May19° / 11°675.910.36.7
Jun16° / 465.19.85.7
Jul16° / 445.2105.5
Aug18° / 595.210.86.7
Sep20° / 10°686.211.87.1
Oct23° / 13°1169.912.87.1
Nov26° / 15°1107.813.77.2
Dec29° / 18°106914.26.0

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 13% of January, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46436
56535
66535
76535
86634
96634
106733
116733
126634
136733
146733
156733
166733
176733
186733
196733
206733
216733
226733
236733
246634
256634
266634
276535
286535
296535
306436
316436

Chance of precipitation in January

Any precipitation

Ramallo gets around 100 mm of rain over 7.9 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 26% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
626
726
826
925
1025
1125
1225
1325
1425
1524
1624
1724
1824
1924
2025
2125
2225
2326
2426
2527
2627
2728
2829
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 34% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
110202532121
210202533120
39202533120
49202533120
59192633120
69192633120
710192634120
810182634110
910182734110
1010182734110
1110182834100
1210172834100
131017293490
141017303490
151017303590
161016313580
171016313480
181016313480
191016313490
201016313490
211016313490
2210163134100
2310163134100
2410153034110
2510153034110
2610152934121
2710152934121
2810152834131
2910152834131
3010152733141
3110152733141

Wind in January

Winds average 11 km/h in January.

Across January, daily wind ranges from about 11 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
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:58 AM to 6:23 AM, and sunset from 8:09 PM to 8:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:588:09
214.25:588:09
314.25:598:09
414.26:008:09
514.16:008:09
614.16:018:10
714.16:028:10
814.16:038:10
914.16:048:10
1014.16:048:10
1114.16:058:10
1214.16:068:10
1314.06:078:10
1414.06:088:09
1514.06:098:09
1614.06:108:09
1714.06:108:09
1814.06:118:09
1913.96:128:08
2013.96:138:08
2113.96:148:08
2213.96:158:08
2313.96:168:07
2413.86:178:07
2513.86:188:06
2613.86:198:06
2713.86:208:05
2813.76:218:05
2913.76:228:04
3013.76:228:04
3113.76:238:03

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.22 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 7.34 kWh/m² in December across the year — January's 7.22 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.3Intense
167.3Intense
177.3Intense
187.3Intense
197.3Intense
207.2Intense
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 Ramallo?

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

5.5
Sightseeing
11th-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Ramallo in January

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

In January, Ramallo 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

UV index in Ramallo 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 Ramallo peaks around January 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 14UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Ramallo 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 Ramallo is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.5× the cleanest month (April, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 1637 µg/m³Apr 156 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar7Good
Apr6Good
May8Good
Jun10Good
Jul21Moderate
Aug40Poor
Sep17Moderate
Oct13Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Ramallo?

Ramallo sits at 33.5°S, 60.0°W, 23 m above sea level, in Argentina. The nearest listed city is San Nicolás de los Arroyos, 25 km away.

Topography around Ramallo

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

Within 3 km, the terrain around Ramallo has only modest variations in elevation — a maximum elevation change of 42 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 49 m; within 80 km, only modest variations in elevation — a maximum elevation change of 87 m.

The land around Ramallo is covered by grassland (27%), cropland (23%) and water (21%) within 3 km, cropland (44%) and wetland (36%) within 16 km, and cropland (50%) and wetland (31%) within 80 km.

3 km
42 m
16 km
49 m
80 km
87 m
treesgrasslandcroplandartificial surfaceswaterwetland
January weather nearby: San Nicolás de los Arroyos 25 km · San Pedro 38 km · Villa Constitución 41 km · Baradero 59 km · Arroyo Seco 60 km · Arrecifes 65 km · Pergamino 69 km · Gualeguay 75 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 Ramallo (-33.4851°, -60.0063°, elevation 23 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).