Nueve de Julio weather in December

In December, Nueve de Julio sees average daytime highs of 28°C and overnight lows near 16°C, with 101 mm of rain across 8.8 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 54% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of December to 14 h 24 min by month's end. Set against the rest of the year, December is Nueve de Julio's 2nd-clearest and 5th-windiest month. For the whole year in context, see Nueve de Julio's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
16°
10th coldest
Rainfall
101 mm
8.8 wet days
Daylight
14 h 24 min
5:48 AM – 8:11 PM
Cloud cover
41%
2nd clearest
Wind
13 km/h
5th windiest
Solar energy
7.5 kWh/m²
Travel score
6.5
out of 10

Nueve de Julio is city in Buenos Aires Province.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical December day in Nueve de Julio reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12714
22714
32715
42715
52715
62715
72715
82715
92715
102715
112815
122815
132816
142816
152816
162816
172816
182816
192816
202816
212816
222917
232917
242917
252917
262917
272917
282917
292917
302917
312917

Nueve de Julio weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°1118.814.16.1
Feb28° / 17°98813.36.9
Mar25° / 15°1078.112.37.3
Apr22° / 11°987.911.17.1
May18° / 55610.26.3
Jun15° / 354.69.75.0
Jul14° / 354.59.94.7
Aug17° / 444.510.76.1
Sep19° / 676.511.86.7
Oct22° / 11°1099.912.96.8
Nov25° / 13°105913.97.2
Dec28° / 16°1018.814.36.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46535
56535
66535
76535
86535
96535
106535
116733
126733
136832
146832
156832
166931
176931
187030
197129
207129
217129
227129
237129
247129
257129
267030
277030
287030
296931
306931
316931

Chance of precipitation in December

Any precipitation

Nueve de Julio gets around 101 mm of rain over 8.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
329
429
529
629
729
829
929
1029
1129
1229
1329
1429
1529
1629
1729
1829
1929
2029
2129
2229
2329
2428
2528
2628
2728
2828
2928
3028
3128

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152271830
251261940
351261940
451261940
549262040
648262041
748262151
847262151
946262251
1045262251
1144272361
1243272361
1342272471
1440272471
1539282581
1638282581
1736282691
18352826101
19332727111
20322727132
21302727142
22292728152
23272728162
24262628172
25252628183
26242628193
27232529203
28222529213
29222529213
30212529224
31202529224

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light 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 December

DaylightNight

Daylight runs from about 14 h 12 min at the start of December to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 5:47 AM to 5:56 AM, and sunset from 8:00 PM to 8:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:478:00
214.25:478:01
314.35:478:02
414.35:468:02
514.35:468:03
614.35:468:04
714.35:478:05
814.35:478:06
914.35:478:06
1014.35:478:07
1114.35:478:08
1214.45:478:09
1314.45:478:09
1414.45:488:10
1514.45:488:11
1614.45:488:11
1714.45:498:12
1814.45:498:12
1914.45:498:13
2014.45:508:13
2114.45:508:14
2214.45:518:14
2314.45:518:15
2414.45:528:15
2514.45:528:16
2614.45:538:16
2714.45:538:16
2814.45:548:17
2914.45:548:17
3014.45:558:17
3114.45:568:18

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.5 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 7.5 kWh/m² in December across the year — December's 7.5 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.4Intense
37.4Intense
47.4Intense
57.4Intense
67.4Intense
77.4Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.5Intense
197.5Intense
207.5Intense
217.5Intense
227.5Intense
237.5Intense
247.5Intense
257.5Intense
267.5Intense
277.5Intense
287.5Intense
297.4Intense
307.4Intense
317.4Intense
Planning a trip in December

Is December a good time to visit Nueve de Julio?

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

6.5
Sightseeing
7th-best month of the year
7.3
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Nueve de Julio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nueve de Julio in December

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

In December, Nueve de Julio sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Nueve de Julio in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Nueve de Julio peaks around January 13 at about 13 (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 13UV 13Jun 20UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Nueve de Julio?

Nueve de Julio sits at 35.4°S, 60.9°W, 79 m above sea level, in Argentina. The nearest listed city is Carlos Casares, 48 km away.

Topography around Nueve de Julio

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

Within 3 km, the terrain around Nueve de Julio has only modest variations in elevation — a maximum elevation change of 19 m around an average of 75 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 70 m.

The land around Nueve de Julio is covered by cropland (35%), artificial surfaces (26%) and grassland (24%) within 3 km, cropland (73%) and grassland (22%) within 16 km, and cropland (72%) and grassland (25%) within 80 km.

3 km
19 m
16 km
38 m
80 km
70 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Carlos Casares 48 km · Bragado 51 km · Los Toldos 51 km · Veinticinco de Mayo 65 km · Lincoln 87 km · San Carlos de Bolívar 90 km · Junín 95 km · Chacabuco 97 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 Nueve de Julio (-35.4439°, -60.8846°, elevation 79 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).