General Acha weather in December

In December, General Acha sees average daytime highs of 28°C and overnight lows near 15°C, with 70 mm of rain across 7.4 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 64% 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 General Acha's 3rd-clearest and 1st-windiest month. For the whole year in context, see General Acha's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
15°
10th coldest
Rainfall
70 mm
7.4 wet days
Daylight
14 h 36 min
5:58 AM – 8:31 PM
Cloud cover
33%
3rd clearest
Wind
14 km/h
1st windiest
Solar energy
8 kWh/m²
Travel score
6.6
out of 10

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 30°C by the end.

A typical December day in General Acha reaches about 28°C in the afternoon and slips back to 15°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 34°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
32714
42714
52714
62714
72714
82814
92815
102815
112815
122815
132815
142815
152815
162815
172915
182916
192916
202916
212916
222916
232916
242916
252916
262916
273017
283017
293017
303017
313017

How December really feels in General Acha

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.

General Acha weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 17°687.614.35.8
Feb28° / 16°637.413.46.7
Mar25° / 14°76712.37.6
Apr21° / 10°545.811.17.3
May17° / 335.1105.9
Jun13° / 194.59.54.4
Jul13° / 183.19.74.3
Aug16° / 283.710.65.7
Sep18° / 41611.76.7
Oct21° / 10°698.7136.9
Nov25° / 13°668.1147.4
Dec28° / 15°707.414.56.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 21%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27624
37624
47624
57624
67624
77624
87624
97723
107723
117723
127723
137822
147822
157921
167921
178020
188020
198020
208119
218119
228218
238218
248119
258119
268119
278119
288020
298020
308020
318020

Chance of precipitation in December

Any precipitation

General Acha gets around 70 mm of rain over 7.4 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 24% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
524
624
724
824
924
1024
1124
1224
1324
1423
1523
1623
1723
1823
1923
2023
2123
2223
2323
2423
2524
2624
2724
2824
2924
3024
3124

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791551
2791551
3791551
4781561
5781561
6771571
7771571
8761581
9761581
10761581
11771481
12771481
13771481
14761491
15751492
16751492
17751492
18751492
19741592
20731593
21721693
227116103
237017103
246818104
256818104
266619114
276520114
286321124
296321124
306122134
316122134

Wind in December

Winds average 14 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 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 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 5:57 AM to 6:05 AM, and sunset from 8:20 PM to 8:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:578:20
214.45:568:21
314.45:568:22
414.45:568:22
514.55:568:23
614.55:568:24
714.55:568:25
814.55:568:26
914.55:568:27
1014.55:568:27
1114.55:578:28
1214.55:578:29
1314.55:578:29
1414.65:578:30
1514.65:578:31
1614.65:588:31
1714.65:588:32
1814.65:588:33
1914.65:598:33
2014.65:598:34
2114.66:008:34
2214.66:008:35
2314.66:008:35
2414.66:018:36
2514.66:028:36
2614.66:028:36
2714.66:038:37
2814.66:038:37
2914.66:048:37
3014.66:058:38
3114.56:058:38

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 8 kWh/m² in December across the year — December's 8 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.8Intense
27.8Intense
37.8Intense
47.8Intense
57.8Intense
67.9Intense
77.9Intense
87.9Intense
97.9Intense
107.9Intense
117.9Intense
127.9Intense
138.0Intense
148.0Intense
158.0Intense
168.0Intense
178.0Intense
188.0Intense
198.1Intense
208.1Intense
218.1Intense
228.1Intense
238.1Intense
248.1Intense
258.1Intense
268.1Intense
278.1Intense
288.0Intense
298.0Intense
308.0Intense
318.0Intense
Planning a trip in December

Is December a good time to visit General Acha?

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

6.6
Sightseeing
7th-best month of the year
7.7
Beach & pool
2nd-best month of the year

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

What to pack for General Acha in December

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

In December, General Acha sees daytime highs around 28°C and nights near 15°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in General Acha in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 General Acha peaks around December 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 highModerateVery highExtremeDec 22UV 13Jun 21UV 2
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr6High
May3Moderate
Jun2Moderate
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov11Extreme
Dec13Extreme

Air quality in General Acha in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in General Acha is worst in January — around 19 µg/m³ PM2.5 (moderate), about 6.0× the cleanest month (May, 3 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJan 1517 µg/m³May 213 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb5Good
Mar5Good
Apr4Good
May3Good
Jun3Good
Jul3Good
Aug7Good
Sep7Good
Oct5Good
Nov4Good
Dec9Good
Location & terrain

Where is General Acha?

General Acha sits at 37.4°S, 64.6°W, 227 m above sea level, in Argentina. The nearest listed city is Toay, 81 km away.

Trenque LauquenCoronel SuárezBahía Blanca

Topography around General Acha

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

Within 3 km, the terrain around General Acha has only modest variations in elevation — a maximum elevation change of 82 m around an average of 239 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 173 m; within 80 km, significant variations in elevation — a maximum elevation change of 353 m.

The land around General Acha is covered by grassland (48%) within 3 km, grassland (53%) and shrubs (32%) within 16 km, and shrubs (37%), grassland (34%) and cropland (23%) within 80 km.

3 km
82 m
16 km
173 m
80 km
353 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Toay 81 km · Santa Rosa 89 km · Río Colorado 185 km · Pigüé 195 km · General Pico 206 km · Trenque Lauquen 229 km · Coronel Suárez 236 km · Bahía Blanca 253 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 General Acha (-37.3782°, -64.6042°, elevation 227 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).