Asuncion weather in December

In December, Asuncion sees average daytime highs of 32°C and overnight lows near 22°C, with 161 mm of rain across 12.7 wet days and about 13.5 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 41% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of December to 13 h 36 min by month's end. Set against the rest of the year, December is Asuncion's 8th-clearest and 8th-windiest month. For the whole year in context, see Asuncion's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
161 mm
12.7 wet days
Daylight
13 h 36 min
6:00 AM – 7:34 PM
Cloud cover
53%
8th clearest
Wind
12 km/h
8th windiest
Solar energy
6.73 kWh/m²
Travel score
3.8
out of 10

Asuncion is capital of Paraguay.

Air quality
Elevated
PM2.5 18.4 µg/m³ · 2010
Density
12,668/km²
people per km²
Founded
1537

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical December day in Asuncion reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 36°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13121
23121
33121
43121
53121
63221
73222
83222
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213222
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How December really feels in Asuncion

Once humidity and wind are folded in, December averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Asuncion weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°12112.413.43.3
Feb32° / 23°14112.512.93.6
Mar31° / 22°11910.612.24.5
Apr28° / 19°1559.711.46.0
May24° / 16°1368.810.87.1
Jun23° / 14°1018.610.57.1
Jul23° / 13°757.710.67.4
Aug25° / 14°646.411.17.7
Sep27° / 16°1078.611.86.9
Oct29° / 19°18511.912.65.2
Nov30° / 20°19011.413.24.7
Dec32° / 22°16112.713.53.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% 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 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35347
45347
55347
65347
75347
85446
95545
105545
115545
125644
135743
145743
155842
165842
175842
185842
195842
205842
215842
225644
235644
245644
255545
265545
275545
285545
295545
305545
315545

Chance of precipitation in December

Any precipitation

Asuncion gets around 161 mm of rain over 12.7 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 41% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
341
441
541
640
740
840
939
1039
1139
1239
1339
1439
1539
1639
1739
1839
1940
2040
2141
2241
2342
2443
2544
2644
2744
2844
2943
3043
3142

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1361732402
2361632402
3361631413
4361531423
5261531433
6261530433
7261430444
8261430454
9261429454
10261329464
11251329474
12251329474
13251229484
14251229494
15241229494
16241128514
17241128514
18241128505
19141128515
20141027535
21131026546
22131026546
23131025547
2413925548
2513924549
26139245310
27139235311
28039235312
29039235213
30039225214
31039225115

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 30 min at the start of December to 13 h 36 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 5:56 AM to 6:07 AM, and sunset from 7:24 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:567:24
213.55:577:25
313.55:577:26
413.55:577:26
513.55:577:27
613.55:577:28
713.55:577:28
813.55:577:29
913.55:587:30
1013.55:587:30
1113.55:587:31
1213.55:587:31
1313.65:597:32
1413.65:597:33
1513.65:597:33
1613.66:007:34
1713.66:007:34
1813.66:017:35
1913.66:017:35
2013.66:017:36
2113.66:027:36
2213.66:027:37
2313.66:037:37
2413.66:037:38
2513.66:047:38
2613.66:047:39
2713.66:057:39
2813.66:057:39
2913.66:067:40
3013.66:077:40
3113.66:077:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.73 kWh/m².

For context, solar energy here swings from a low near 2.77 kWh/m² to a high of 6.75 kWh/m² in January across the year — December's 6.73 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
316.8Intense
Planning a trip in December

Is December a good time to visit Asuncion?

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

3.8
Sightseeing
10th-best month of the year
6.1
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Asuncion. The water and warmth also suit a beach or pool day.

What to pack for Asuncion in December

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

In December, Asuncion sees daytime highs around 32°C and nights near 22°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

UV index in Asuncion 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 Asuncion peaks around January 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 17UV 15Jul 15UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug5High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in Asuncion 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 Asuncion is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 12 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Asuncion's WHO annual average of 18.4 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 932 µg/m³Dec 1312 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar18Moderate
Apr13Moderate
May13Moderate
Jun14Moderate
Jul17Moderate
Aug32Moderate
Sep33Moderate
Oct21Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Asuncion?

Asuncion sits at 25.3°S, 57.6°W, 113 m above sea level, in Paraguay. The nearest listed city is Lambaré, 8.0 km away.

Topography around Asuncion

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

Within 3 km, the terrain around Asuncion has only modest variations in elevation — a maximum elevation change of 98 m around an average of 81 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 500 m.

The land around Asuncion is covered by artificial surfaces (49%), trees (26%) and water (20%) within 3 km, trees (43%), grassland (31%) and artificial surfaces (22%) within 16 km, and grassland (51%) and trees (42%) within 80 km.

3 km
98 m
16 km
139 m
80 km
500 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Lambaré 8.0 km · Villa Elisa 11 km · Fernando de la Mora 14 km · Mariano Roque Alonso 14 km · San Lorenzo 15 km · Nemby 16 km · San Antonio 18 km · Limpio 21 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 Asuncion (-25.2865°, -57.647°, elevation 113 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).