Santa Elena weather in December

In December, Santa Elena sees average daytime highs of 30°C and overnight lows near 19°C, with 134 mm of rain across 7.9 wet days and about 14 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 29°C in the first days to 31°C by the end. The sky is clear or mostly clear about 48% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 54 min at the start of December to 14 hours by month's end. Set against the rest of the year, December is Santa Elena's 5th-clearest and 6th-windiest month. For the whole year in context, see Santa Elena's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
19°
10th coldest
Rainfall
134 mm
7.9 wet days
Daylight
14 hours
5:55 AM – 7:55 PM
Cloud cover
46%
5th clearest
Wind
12 km/h
6th windiest
Solar energy
7.15 kWh/m²
Travel score
5.5
out of 10

Santa Elena is Argentine city in province of Entre Ríos.

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 29°C in the first days to 31°C by the end.

A typical December day in Santa Elena reaches about 30°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
82918
92918
102918
113018
123019
133019
143019
153019
163019
173019
183019
193019
203019
213019
223020
233020
243020
253020
263120
273120
283120
293120
303120
313120

How December really feels in Santa Elena

Once humidity and wind are folded in, December averages 1 day 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
1
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.

Santa Elena 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
Jan31° / 20°1098.913.84.8
Feb30° / 20°1168.713.15.3
Mar28° / 18°1198.512.26.5
Apr24° / 15°1438.611.37.3
May21° / 12°796.510.57.0
Jun18° / 625.6106.5
Jul18° / 485.110.26.6
Aug20° / 655.710.97.3
Sep22° / 11°756.511.87.5
Oct25° / 14°1338.812.87.2
Nov28° / 17°1167.513.66.8
Dec30° / 19°1347.9145.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% 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 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26139
36238
46337
56337
66436
76436
86436
96535
106535
116634
126634
136634
146634
156535
166535
176436
186337
196238
206238
216139
226139
236139
246040
256040
266139
276040
286040
296040
306040
316139

Chance of precipitation in December

Any precipitation

Santa Elena gets around 134 mm of rain over 7.9 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 26% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
324
424
524
624
724
824
924
1024
1125
1225
1325
1426
1526
1627
1727
1827
1927
2027
2127
2227
2327
2427
2527
2627
2727
2827
2927
3027
3127

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11728282150
21728282150
31728292150
41727292160
51627292160
61626302170
71625302170
81524312280
91523312280
101423322281
111422322391
121321332391
1313203324101
1412203325101
1511193325111
1611183226121
1710173227131
1810173127141
199163028142
209153029152
219152929162
228142830182
238142730193
248142630203
258132530213
267132431213
277132430224
287132330234
297132330234
306132231244
316132231244

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 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
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 54 min at the start of December to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:53 AM to 6:03 AM, and sunset from 7:45 PM to 8:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:537:45
213.95:537:46
313.95:537:46
413.95:537:47
513.95:537:48
613.95:537:49
713.95:537:49
813.95:537:50
914.05:547:51
1014.05:547:51
1114.05:547:52
1214.05:547:53
1314.05:547:53
1414.05:557:54
1514.05:557:55
1614.05:557:55
1714.05:567:56
1814.05:567:56
1914.05:577:57
2014.05:577:57
2114.05:577:58
2214.05:587:58
2314.05:587:59
2414.05:597:59
2514.05:598:00
2614.06:008:00
2714.06:008:00
2814.06:018:01
2914.06:028:01
3014.06:028:01
3114.06:038:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.15 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 7.15 kWh/m² in December across the year — December's 7.15 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.1Intense
57.1Intense
67.1Intense
77.2Intense
87.2Intense
97.2Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.2Intense
177.2Intense
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
317.2Intense
Planning a trip in December

Is December a good time to visit Santa Elena?

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

5.5
Sightseeing
10th-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Santa Elena in December

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

In December, Santa Elena sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Santa Elena 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 Santa Elena peaks around January 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 19UV 13Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Santa Elena 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 Santa Elena is worst in August — around 22 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (May, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1721 µg/m³May 116 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar6Good
Apr6Good
May6Good
Jun7Good
Jul13Moderate
Aug22Moderate
Sep15Moderate
Oct9Good
Nov6Good
Dec7Good
Location & terrain

Where is Santa Elena?

Santa Elena sits at 30.9°S, 59.8°W, 67 m above sea level, in Argentina. The nearest listed city is La Paz, 26 km away.

Topography around Santa Elena

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

Within 3 km, the terrain around Santa Elena has only modest variations in elevation — a maximum elevation change of 56 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, only modest variations in elevation — a maximum elevation change of 87 m.

The land around Santa Elena is covered by water (34%), trees (25%) and grassland (25%) within 3 km, wetland (29%) and trees (27%) within 16 km, and grassland (29%), cropland (24%) and trees (21%) within 80 km.

3 km
56 m
16 km
68 m
80 km
87 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: La Paz 26 km · San Javier 43 km · San Justo 79 km · Federal 96 km · Esquina 106 km · Paraná 112 km · Santa Fe 117 km · Esperanza 122 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 Santa Elena (-30.9443°, -59.7883°, elevation 67 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).