Concepción weather in December

In December, Concepción sees average daytime highs of 33°C and overnight lows near 23°C, with 176 mm of rain across 14.5 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 39% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Concepción's 11th-clearest and 8th-windiest month. For the whole year in context, see Concepción's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
23°
10th coldest
Rainfall
176 mm
14.5 wet days
Daylight
13 h 24 min
6:03 AM – 7:29 PM
Cloud cover
56%
11th clearest
Wind
11 km/h
8th windiest
Solar energy
6.57 kWh/m²
Travel score
3.4
out of 10

Concepción is city and department capital of Concepcion, Paraguay.

Density
44/km²
people per km²
Founded
1787

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 33°C through the month.

A typical December day in Concepción reaches about 33°C in the afternoon and slips back to 23°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 1°C warmer than November and on par with January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33222
43222
53222
63222
73223
83223
93223
103223
113223
123223
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253324
263324
273324
283324
293324
303324
313324

How December really feels in Concepción

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.

Concepción weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°14813.513.33.1
Feb33° / 23°13612.912.83.4
Mar32° / 22°12911.512.24.0
Apr30° / 20°1318.611.55.5
May26° / 17°1429.510.96.9
Jun25° / 16°928.110.67.3
Jul25° / 14°706.810.77.7
Aug27° / 16°666.411.27.2
Sep29° / 18°1038.411.95.8
Oct31° / 21°17712.112.54.4
Nov31° / 21°17911.913.14.1
Dec33° / 23°17614.513.43.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45050
55149
65149
75149
85248
95248
105248
115347
125347
135446
145545
155644
165743
175743
185842
195842
205842
215743
225743
235545
245446
255446
265248
275248
285149
295149
305149
315149

Chance of precipitation in December

Any precipitation

Concepción gets around 176 mm of rain over 14.5 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 46% and peaks near 48% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
146
247
347
448
548
648
748
848
947
1047
1147
1246
1346
1446
1545
1645
1744
1844
1944
2044
2144
2245
2345
2446
2546
2646
2746
2846
2946
3046
3145

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1151127542
2141026563
3141026563
4131025583
5131025574
6131024584
7131024584
8131024575
9121023595
10121023595
11121023595
12121023595
1312923605
1412923605
1512923596
1612924596
1712824596
1812824596
1911824606
2011724616
2111724616
2211724607
2311623627
2411623618
2501623619
2601522639
27015226210
28015226111
29015226111
30015216112
31015216112

Wind in December

Winds average 11 km/h in December.

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

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 h 24 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 5:59 AM to 6:10 AM, and sunset from 7:20 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:597:20
213.35:597:20
313.46:007:21
413.46:007:22
513.46:007:22
613.46:007:23
713.46:007:24
813.46:007:24
913.46:017:25
1013.46:017:25
1113.46:017:26
1213.46:027:27
1313.46:027:27
1413.46:027:28
1513.46:037:28
1613.46:037:29
1713.46:037:29
1813.46:047:30
1913.46:047:30
2013.46:057:31
2113.46:057:31
2213.46:057:32
2313.46:067:32
2413.46:067:33
2513.46:077:33
2613.46:077:34
2713.46:087:34
2813.46:097:35
2913.46:097:35
3013.46:107:35
3113.46:107:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.57 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.98 kWh/m² to a high of 6.57 kWh/m² in January across the year — December's 6.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in December

Is December a good time to visit Concepción?

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

3.4
Sightseeing
10th-best month of the year
5.8
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Concepción.

What to pack for Concepción in December

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

In December, Concepción sees daytime highs around 33°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Concepción 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 Concepción peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7High
Sep7High
Oct9Very high
Nov13Extreme
Dec13Extreme

Air quality in Concepción 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 Concepción is worst in September — around 38 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (April, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Apr 197 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb10Good
Mar9Good
Apr7Good
May8Good
Jun9Good
Jul15Moderate
Aug32Moderate
Sep38Poor
Oct26Moderate
Nov17Moderate
Dec9Good
Location & terrain

Where is Concepción?

Concepción sits at 23.4°S, 57.4°W, 78 m above sea level, in Paraguay. The nearest listed city is Yby Yaú, 103 km away.

Yby YaúBela VistaVilla HayesLimpioPedro Juan CaballeroPonta PorãMariano Roque AlonsoAsuncion

Topography around Concepción

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

Within 3 km, the terrain around Concepción has only modest variations in elevation — a maximum elevation change of 26 m around an average of 77 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, significant variations in elevation — a maximum elevation change of 327 m.

The land around Concepción is covered by grassland (33%), trees (30%) and artificial surfaces (29%) within 3 km, trees (45%) and grassland (45%) within 16 km, and grassland (47%) and trees (45%) within 80 km.

3 km
26 m
16 km
96 m
80 km
327 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Yby Yaú 103 km · Bela Vista 171 km · Villa Hayes 189 km · Limpio 196 km · Pedro Juan Caballero 198 km · Ponta Porã 199 km · Mariano Roque Alonso 201 km · Asuncion 211 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 Concepción (-23.3999°, -57.4324°, elevation 78 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).