Tostado weather in December

In December, Tostado sees average daytime highs of 31°C and overnight lows near 20°C, with 135 mm of rain across 10 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 46% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is Tostado's 5th-clearest and 5th-windiest month. For the whole year in context, see Tostado's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
20°
10th coldest
Rainfall
135 mm
10 wet days
Daylight
13 h 54 min
6:07 AM – 7:59 PM
Cloud cover
47%
5th clearest
Wind
12 km/h
5th windiest
Solar energy
7.03 kWh/m²
Travel score
4.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 30°C in the first days to 32°C by the end.

A typical December day in Tostado reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°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)
13019
23019
33019
43119
53119
63119
73120
83120
93120
103120
113120
123120
133120
143120
153120
163220
173220
183220
193221
203221
213221
223221
233221
243221
253221
263221
273221
283221
293221
303221
313221

How December really feels in Tostado

Once humidity and wind are folded in, December averages 16 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
16
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.

Tostado 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
Jan32° / 21°14310.713.73.9
Feb31° / 21°1079.413.14.6
Mar29° / 19°1209.312.25.7
Apr26° / 16°1118.611.37.1
May22° / 13°545.810.67.4
Jun19° / 10°315.110.27.0
Jul19° / 253.810.37.4
Aug22° / 10°353.6118.2
Sep25° / 13°525.811.87.9
Oct27° / 16°1129.312.76.7
Nov30° / 18°1258.713.55.5
Dec31° / 20°1351013.84.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36238
46238
56337
66436
76436
86436
96436
106535
116535
126535
136535
146535
156535
166535
176535
186535
196436
206436
216436
226337
236238
246238
256238
266139
276139
286139
296139
306139
316139

Chance of precipitation in December

Any precipitation

Tostado gets around 135 mm of rain over 10 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 33% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
332
432
532
632
732
832
931
1031
1131
1231
1331
1432
1532
1632
1732
1833
1933
2033
2133
2233
2333
2434
2534
2634
2734
2834
2934
3034
3134

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
117212824100
216212824100
316212824100
416202824110
515202925110
615202925120
715192925120
814192925130
914182925130
1014182926140
1113182926140
1213172926140
1312172927151
1412162927151
1511162927161
1611152927161
1710152928171
1810142828182
1910142729182
2010142629192
219132629203
229132530213
239132430223
248122330233
258122330243
268122230244
278122230254
288122130264
297122130264
307122129274
317122029274

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
312light breeze
412light breeze
512light breeze
612light breeze
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 42 min at the start of December to 13 h 48 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 6:05 AM to 6:15 AM, and sunset from 7:49 PM to 8:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:057:49
213.76:057:50
313.86:057:50
413.86:057:51
513.86:057:52
613.86:057:53
713.86:057:53
813.86:057:54
913.86:067:55
1013.86:067:55
1113.86:067:56
1213.86:067:57
1313.86:067:57
1413.96:077:58
1513.96:077:58
1613.96:077:59
1713.96:088:00
1813.96:088:00
1913.96:098:01
2013.96:098:01
2113.96:098:02
2213.96:108:02
2313.96:108:03
2413.96:118:03
2513.96:118:04
2613.96:128:04
2713.96:128:04
2813.96:138:05
2913.96:148:05
3013.96:148:05
3113.86:158:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.03 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 7.03 kWh/m² in December across the year — December's 7.03 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.9Intense
46.9Intense
56.9Intense
66.9Intense
76.9Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.1Intense
167.1Intense
177.1Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.1Intense
247.1Intense
257.1Intense
267.1Intense
277.1Intense
287.1Intense
297.1Intense
307.1Intense
317.1Intense
Planning a trip in December

Is December a good time to visit Tostado?

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

4.4
Sightseeing
11th-best month of the year
6.7
Beach & pool
6th-best month of the year

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

What to pack for Tostado in December

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

In December, Tostado sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Tostado 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 Tostado peaks around January 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 24UV 14Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr7Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Tostado 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 Tostado is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (April, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2020 µg/m³Apr 217 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr7Good
May7Good
Jun8Good
Jul11Good
Aug20Moderate
Sep17Moderate
Oct10Good
Nov8Good
Dec8Good
Location & terrain

Where is Tostado?

Tostado sits at 29.2°S, 61.8°W, 77 m above sea level, in Argentina. The nearest listed city is Añatuya, 135 km away.

Topography around Tostado

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

Within 3 km, the terrain around Tostado has only modest variations in elevation — a maximum elevation change of 7 m around an average of 74 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 14 m; within 80 km, only modest variations in elevation — a maximum elevation change of 42 m.

The land around Tostado is covered by grassland (48%) within 3 km, grassland (50%) and cropland (29%) within 16 km, and grassland (47%) and cropland (41%) within 80 km.

3 km
7 m
16 km
14 m
80 km
42 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Añatuya 135 km · Vera 153 km · Morteros 166 km · Sunchales 191 km · Avellaneda 205 km · Reconquista 206 km · San Justo 207 km · Villa Ángela 211 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 Tostado (-29.2327°, -61.7687°, elevation 77 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).