Ayacucho weather in December

In December, Ayacucho sees average daytime highs of 26°C and overnight lows near 13°C, with 73 mm of rain across 8.7 wet days and about 14.5 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 25°C in the first days to 27°C by the end. The sky is clear or mostly clear about 50% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of December to 14 h 30 min by month's end. Set against the rest of the year, December is Ayacucho's 1st-clearest and 1st-windiest month. For the whole year in context, see Ayacucho's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
13°
10th coldest
Rainfall
73 mm
8.7 wet days
Daylight
14 h 30 min
5:34 AM – 8:06 PM
Cloud cover
44%
1st clearest
Wind
15 km/h
1st windiest
Solar energy
7.55 kWh/m²
Travel score
7.1
out of 10

Ayacucho is city in Buenos Aires province, Argentina.

Founded
1866

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 27°C by the end.

A typical December day in Ayacucho reaches about 26°C in the afternoon and slips back to 13°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°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)
12412
22512
32512
42512
52512
62512
72512
82513
92513
102513
112613
122613
132613
142613
152613
162613
172614
182614
192714
202714
212714
222714
232714
242714
252714
262715
272715
282715
292815
302815
312815

How December really feels in Ayacucho

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.

Ayacucho weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 15°838.714.36.9
Feb26° / 15°738.113.47.0
Mar24° / 13°768.212.37.3
Apr20° / 10°807.311.16.8
May16° / 455.9105.7
Jun13° / 484.99.54.2
Jul13° / 445.59.73.7
Aug15° / 545.510.64.9
Sep17° / 616.811.75.6
Oct20° / 849.6136.3
Nov23° / 11°879.4147.0
Dec26° / 13°738.714.57.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56436
66436
76436
86436
96436
106535
116535
126535
136634
146634
156634
166634
176634
186733
196733
206733
216733
226733
236733
246634
256634
266634
276535
286535
296436
306337
316436

Chance of precipitation in December

Any precipitation

Ayacucho gets around 73 mm of rain over 8.7 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 28% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
228
328
428
528
628
728
828
928
1028
1128
1228
1328
1428
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 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 (%)
16225121
26225121
36225121
46026131
56026131
66026131
75926141
85926141
95826142
105627152
115627152
125627152
135527162
145427163
155327173
165227183
175127184
185027194
194827205
204727215
214626226
224426227
234326238
244226239
254126249
2639262410
2738262511
2837262512
2936262512
3036262513
3135262513

Wind in December

Winds average 15 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light 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 24 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 6 minutes over December. Sunrise moves from 5:33 AM to 5:41 AM, and sunset from 7:55 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:337:55
214.45:337:56
314.45:327:57
414.45:327:57
514.45:327:58
614.45:327:59
714.55:328:00
814.55:328:01
914.55:328:01
1014.55:338:02
1114.55:338:03
1214.55:338:04
1314.55:338:04
1414.55:338:05
1514.55:348:06
1614.55:348:06
1714.55:348:07
1814.65:358:08
1914.65:358:08
2014.65:358:09
2114.65:368:09
2214.65:368:10
2314.65:378:10
2414.65:378:11
2514.65:388:11
2614.65:388:11
2714.55:398:12
2814.55:398:12
2914.55:408:12
3014.55:418:13
3114.55:418:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.55 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2 kWh/m² to a high of 7.55 kWh/m² in December across the year — December's 7.55 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
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
167.6Intense
177.6Intense
187.6Intense
197.6Intense
207.6Intense
217.6Intense
227.6Intense
237.6Intense
247.6Intense
257.6Intense
267.6Intense
277.5Intense
287.5Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in December

Is December a good time to visit Ayacucho?

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
6.8
Beach & pool
2nd-best month of the year

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

What to pack for Ayacucho in December

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

In December, Ayacucho sees daytime highs around 26°C and nights near 13°C. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

sun protectionlight clothesrain gear

UV index in Ayacucho 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 Ayacucho peaks around January 1 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 1UV 12Jun 20UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov10Extreme
Dec12Extreme
Location & terrain

Where is Ayacucho?

Ayacucho sits at 37.2°S, 58.5°W, 76 m above sea level, in Argentina. The nearest listed city is Tandil, 61 km away.

Topography around Ayacucho

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

Within 3 km, the terrain around Ayacucho has only modest variations in elevation — a maximum elevation change of 29 m around an average of 77 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, significant variations in elevation — a maximum elevation change of 481 m.

The land around Ayacucho is covered by grassland (67%) within 3 km, grassland (74%) and cropland (24%) within 16 km, and grassland (64%) and cropland (35%) within 80 km.

3 km
29 m
16 km
70 m
80 km
481 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Tandil 61 km · Balcarce 80 km · Santa Clara del Mar 115 km · Dolores 118 km · General Juan Madariaga 121 km · Mar del Plata 125 km · Azul 129 km · Benito Juárez 130 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 Ayacucho (-37.1528°, -58.4884°, elevation 76 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).