Rawson weather in December

In December, Rawson sees average daytime highs of 32°C and overnight lows near 18°C, with 22 mm of rain across 3.3 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 30°C in the first days to 33°C by the end. The sky is clear or mostly clear about 72% of the time in December, and the air most often feels dry.

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 Rawson's 6th-clearest and 3rd-windiest month. For the whole year in context, see Rawson's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
18°
10th coldest
Rainfall
22 mm
3.3 wet days
Daylight
14 hours
6:29 AM – 8:32 PM
Cloud cover
30%
6th clearest
Wind
10 km/h
3rd windiest
Solar energy
8.04 kWh/m²
Travel score
5.2
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 33°C by the end.

A typical December day in Rawson reaches about 32°C in the afternoon and slips back to 18°C overnight — a 14°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.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13016
23016
33017
43017
53117
63117
73117
83117
93117
103117
113117
123117
133117
143218
153218
163218
173218
183218
193218
203218
213218
223219
233219
243319
253319
263319
273319
283319
293319
303319
313319

How December really feels in Rawson

Once humidity and wind are folded in, December averages 14 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
14
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.

Rawson 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
Jan33° / 19°173.213.84.6
Feb31° / 18°203.413.25.3
Mar29° / 16°243.912.26.9
Apr24° / 11°183.311.28.4
May20° / 112.610.47.8
Jun18° / 82107.2
Jul17° / 82.210.17.0
Aug20° / 102.310.88.1
Sep23° / 183.311.88.5
Oct26° / 12°213.512.88.2
Nov29° / 15°163.213.66.7
Dec32° / 18°223.3145.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% 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 13%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58614
68614
78614
88614
98614
108614
118614
128713
138812
148812
158812
168911
178911
188911
198911
208911
218911
228911
238911
248911
258911
268911
278812
288713
298614
308614
318614

Chance of precipitation in December

Any precipitation

Rawson gets around 22 mm of rain over 3.3 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 10% and peaks near 13% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
213
313
413
513
613
713
813
913
1012
1112
1211
1311
1410
1510
169
179
189
198
208
218
228
238
248
258
268
278
288
299
309
319

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
181181
280191
380191
478202
577212
677212
776222
876222
976222
1074233
1174233
1273243
1372244
1472244
1572244
1670255
1770255
1869256
1969256
2067267
2165278
2265278
2363289
2462299
25603010
26593011
27583111
28573112
29553213
30543214
31523315

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:27 AM to 6:36 AM, and sunset from 8:21 PM to 8:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:278:21
213.96:278:22
313.96:278:23
413.96:278:24
514.06:278:24
614.06:278:25
714.06:278:26
814.06:278:27
914.06:278:27
1014.06:278:28
1114.06:278:29
1214.06:288:29
1314.06:288:30
1414.06:288:31
1514.06:298:31
1614.06:298:32
1714.16:298:32
1814.16:308:33
1914.16:308:33
2014.16:308:34
2114.16:318:34
2214.16:318:35
2314.16:328:35
2414.16:328:36
2514.16:338:36
2614.16:338:37
2714.16:348:37
2814.06:348:37
2914.06:358:38
3014.06:368:38
3114.06:368:38

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8.04 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.26 kWh/m² to a high of 8.04 kWh/m² in December across the year — December's 8.04 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.9Intense
27.9Intense
37.9Intense
47.9Intense
57.9Intense
68.0Intense
78.0Intense
88.0Intense
98.0Intense
108.0Intense
118.0Intense
128.0Intense
138.0Intense
148.1Intense
158.1Intense
168.1Intense
178.1Intense
188.1Intense
198.1Intense
208.1Intense
218.1Intense
228.1Intense
238.1Intense
248.1Intense
258.1Intense
268.0Intense
278.0Intense
288.0Intense
298.0Intense
307.9Intense
317.9Intense
Planning a trip in December

Is December a good time to visit Rawson?

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

5.2
Sightseeing
11th-best month of the year
8.0
Beach & pool
3rd-best month of the year

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

What to pack for Rawson in December

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

In December, Rawson sees daytime highs around 32°C and nights near 18°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

UV index in Rawson 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 Rawson peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 18UV 14Jun 21UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr6High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7High
Oct11Extreme
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Rawson?

Rawson sits at 31.6°S, 68.5°W, 660 m above sea level, in Argentina. The nearest listed city is San Juan, 5.0 km away.

Topography around Rawson

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

Within 3 km, the terrain around Rawson has only modest variations in elevation — a maximum elevation change of 53 m around an average of 636 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,093 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,838 m.

The land around Rawson is covered by artificial surfaces (64%) within 3 km, shrubs (27%), bare terrain (23%) and cropland (21%) within 16 km, and shrubs (39%), bare terrain (35%) and grassland (21%) within 80 km.

3 km
53 m
16 km
1,093 m
80 km
3,838 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: San Juan 5.0 km · Santa Lucía 6.0 km · Villa Paula de Sarmiento 10 km · Chimbas 10 km · Pocito 12 km · Villa General San Martín 16 km · Albardón 16 km · Caucete 26 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 Rawson (-31.5819°, -68.5421°, elevation 660 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).