Diamante weather in December

In December, Diamante sees average daytime highs of 29°C and overnight lows near 19°C, with 129 mm of rain across 8.6 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 51% 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 h 06 min by month's end. Set against the rest of the year, December is Diamante's 3rd-clearest and 6th-windiest month. For the whole year in context, see Diamante's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
19°
10th coldest
Rainfall
129 mm
8.6 wet days
Daylight
14 h 06 min
5:56 AM – 8:01 PM
Cloud cover
43%
3rd clearest
Wind
11 km/h
6th windiest
Solar energy
7.21 kWh/m²
Travel score
5.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 28°C in the first days to 30°C by the end.

A typical December day in Diamante reaches about 29°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°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42918
52918
62918
72918
82918
92918
102918
112918
122919
132919
142919
152919
162919
173019
183019
193019
203019
213019
223019
233020
243020
253020
263020
273020
283020
293020
303020
313020

Diamante 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°1128.513.95.1
Feb29° / 20°1138.313.25.6
Mar27° / 18°1367.912.26.8
Apr24° / 15°1108.711.27.3
May20° / 12°70610.46.9
Jun17° / 405.29.96.3
Jul17° / 354.410.16.2
Aug19° / 484.810.87.2
Sep22° / 11°625.611.87.5
Oct24° / 14°1249.712.87.2
Nov27° / 17°1147.813.67.0
Dec29° / 19°1298.614.15.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36535
46535
56634
66634
76733
86733
96733
106733
116733
126733
136733
146634
156733
166733
176634
186634
196535
206535
216436
226436
236436
246337
256337
266238
276238
286238
296238
306337
316337

Chance of precipitation in December

Any precipitation

Diamante gets around 129 mm of rain over 8.6 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 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
527
627
727
828
928
1028
1129
1229
1329
1429
1530
1630
1730
1830
1930
2029
2129
2229
2329
2428
2528
2628
2728
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 38% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11931292020
21830292030
31829302030
41828302130
51827302130
61726312140
71726312240
81725322340
91624322340
101623322450
111523322550
121422332650
131422322660
141321322760
151320322870
161220312970
171219313080
181119303190
1910182931101
2010182932111
2110172833121
229172733131
239162633151
248162533161
258162533171
268162433181
277152334191
287152333201
297152332221
306152232231
316152232231

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 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
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 54 min at the start of December to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 5:54 AM to 6:04 AM, and sunset from 7:51 PM to 8:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:547:51
214.05:547:52
314.05:547:52
414.05:547:53
514.05:547:54
614.05:547:55
714.05:547:55
814.05:547:56
914.05:547:57
1014.15:557:58
1114.15:557:58
1214.15:557:59
1314.15:558:00
1414.15:558:00
1514.15:568:01
1614.15:568:01
1714.15:568:02
1814.15:578:03
1914.15:578:03
2014.15:588:04
2114.15:588:04
2214.15:588:05
2314.15:598:05
2414.15:598:05
2514.16:008:06
2614.16:018:06
2714.16:018:07
2814.16:028:07
2914.16:028:07
3014.16:038:08
3114.16:048:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.21 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 7.21 kWh/m² in December across the year — December's 7.21 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.2Intense
47.2Intense
57.2Intense
67.2Intense
77.2Intense
87.2Intense
97.2Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.2Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.2Intense
217.2Intense
227.2Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in December

Is December a good time to visit Diamante?

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

5.7
Sightseeing
10th-best month of the year
7.4
Beach & pool
1st-best month of the year

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

What to pack for Diamante in December

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

In December, Diamante sees daytime highs around 29°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Diamante 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 Diamante peaks around January 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateHighVery highExtremeJan 17UV 13Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Diamante 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 Diamante is worst in September — around 18 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (April, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 918 µg/m³Apr 186 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr6Good
May6Good
Jun8Good
Jul13Moderate
Aug18Moderate
Sep18Moderate
Oct10Good
Nov7Good
Dec7Good
Location & terrain

Where is Diamante?

Diamante sits at 32.1°S, 60.6°W, 17 m above sea level, in Argentina. The nearest listed city is Coronda, 28 km away.

Topography around Diamante

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

Within 3 km, the terrain around Diamante has only modest variations in elevation — a maximum elevation change of 92 m around an average of 35 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 107 m; within 80 km, only modest variations in elevation — a maximum elevation change of 119 m.

The land around Diamante is covered by grassland (24%), water (23%) and trees (21%) within 3 km, cropland (36%) and grassland (30%) within 16 km, and cropland (57%) within 80 km.

3 km
92 m
16 km
107 m
80 km
119 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Coronda 28 km · Crespo 32 km · Paraná 39 km · Santo Tomé 46 km · Santa Fe 47 km · Gálvez 55 km · Esperanza 74 km · Victoria 77 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 Diamante (-32.0671°, -60.6427°, elevation 17 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).