Azul weather in December

In December, Azul sees average daytime highs of 27°C and overnight lows near 14°C, with 74 mm of rain across 8.4 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 28°C by the end. The sky is clear or mostly clear about 52% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of December to 14 h 30 min by month's end. Set against the rest of the year, December is Azul's 2nd-clearest and 4th-windiest month. For the whole year in context, see Azul's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
14°
10th coldest
Rainfall
74 mm
8.4 wet days
Daylight
14 h 30 min
5:40 AM – 8:11 PM
Cloud cover
42%
2nd clearest
Wind
14 km/h
4th windiest
Solar energy
7.6 kWh/m²
Travel score
7.1
out of 10

Azul is city in province Buenos Aires, Argentina.

Founded
1832

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 25°C in the first days to 28°C by the end.

A typical December day in Azul reaches about 27°C in the afternoon and slips back to 14°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 32°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)
12512
22512
32513
42513
52513
62613
72613
82613
92613
102613
112613
122613
132614
142714
152714
162714
172714
182714
192714
202714
212714
222815
232815
242815
252815
262815
272815
282815
292815
302815
312815

How December really feels in Azul

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Azul weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 15°949.314.26.7
Feb27° / 15°787.913.47.0
Mar24° / 13°818.412.37.3
Apr20° / 10°90811.16.8
May17° / 505.810.15.7
Jun13° / 434.99.54.2
Jul13° / 415.29.73.8
Aug15° / 54510.65.1
Sep17° / 656.711.85.9
Oct20° / 919.3136.4
Nov23° / 11°939.5147.1
Dec27° / 14°748.414.57.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46535
56535
66535
76535
86436
96436
106436
116436
126436
136634
146634
156634
166634
176634
186733
196733
206733
216733
226733
236832
246733
256733
266733
276634
286634
296634
306535
316535

Chance of precipitation in December

Any precipitation

Azul gets around 74 mm of rain over 8.4 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 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
328
428
527
627
727
826
926
1026
1126
1226
1326
1426
1526
1627
1727
1827
1927
2027
2128
2228
2328
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 50% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16127111
26127111
36027121
46027121
56126121
66126121
76026131
86026131
95926132
105926132
115826142
125727142
135727142
145527153
155527153
165328163
175128174
185128174
194928185
204728195
214628206
224428217
234328228
244127229
2540272310
2639272311
2738272411
2837272412
2936272413
3035272413
3135272414

Wind in December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 14 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
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 18 min at the start of December to 14 h 30 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 5:39 AM to 5:48 AM, and sunset from 7:59 PM to 8:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:397:59
214.45:398:00
314.45:398:01
414.45:398:02
514.45:398:03
614.45:398:04
714.45:398:04
814.45:398:05
914.45:398:06
1014.55:398:07
1114.55:398:07
1214.55:398:08
1314.55:408:09
1414.55:408:09
1514.55:408:10
1614.55:408:11
1714.55:418:11
1814.55:418:12
1914.55:418:13
2014.55:428:13
2114.55:428:14
2214.55:438:14
2314.55:438:15
2414.55:448:15
2514.55:448:15
2614.55:458:16
2714.55:458:16
2814.55:468:16
2914.55:478:17
3014.55:478:17
3114.55:488:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.6 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 7.6 kWh/m² in December across the year — December's 7.6 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.4Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.5Intense
127.5Intense
137.6Intense
147.6Intense
157.6Intense
167.6Intense
177.6Intense
187.6Intense
197.6Intense
207.6Intense
217.6Intense
227.6Intense
237.6Intense
247.6Intense
257.6Intense
267.6Intense
277.6Intense
287.6Intense
297.6Intense
307.6Intense
317.6Intense
Planning a trip in December

Is December a good time to visit Azul?

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

7.1
Sightseeing
2nd-best month of the year
7.0
Beach & pool
2nd-best month of the year

December is one of the better times to visit Azul for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Azul in December

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

In December, Azul sees daytime highs around 27°C and nights near 14°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

UV index in Azul 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 Azul peaks around January 11 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 11UV 12Jun 20UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5High
Oct8Very high
Nov10Extreme
Dec12Extreme
Location & terrain

Where is Azul?

Azul sits at 36.8°S, 59.9°W, 137 m above sea level, in Argentina. The nearest listed city is Olavarría, 43 km away.

Topography around Azul

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

Within 3 km, the terrain around Azul has only modest variations in elevation — a maximum elevation change of 23 m around an average of 135 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 64 m; within 80 km, significant variations in elevation — a maximum elevation change of 311 m.

The land around Azul is covered by grassland (43%) and artificial surfaces (40%) within 3 km, grassland (60%) and cropland (37%) within 16 km, and grassland (64%) and cropland (35%) within 80 km.

3 km
23 m
16 km
64 m
80 km
311 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Olavarría 43 km · Tandil 89 km · Benito Juárez 100 km · Las Flores 109 km · Saladillo 127 km · San Carlos de Bolívar 128 km · Ayacucho 129 km · Veinticinco de Mayo 152 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 Azul (-36.778°, -59.8585°, elevation 137 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).