Firmat weather in December

In December, Firmat sees average daytime highs of 29°C and overnight lows near 17°C, with 110 mm of rain across 9.1 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 29°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 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Firmat's 2nd-clearest and 6th-windiest month. For the whole year in context, see Firmat's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
17°
10th coldest
Rainfall
110 mm
9.1 wet days
Daylight
14 h 12 min
5:56 AM – 8:08 PM
Cloud cover
43%
2nd clearest
Wind
13 km/h
6th windiest
Solar energy
7.32 kWh/m²
Travel score
6.1
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 29°C by the end.

A typical December day in Firmat reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12816
22816
32816
42816
52816
62816
72816
82816
92817
102817
112817
122817
132917
142917
152917
162917
172917
182917
192917
202918
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918
312918

Firmat weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°1058.9145.7
Feb28° / 18°1118.913.26.4
Mar26° / 16°1128.312.37.1
Apr23° / 13°888.111.27.3
May19° / 10°635.710.36.8
Jun16° / 304.49.85.7
Jul15° / 274.1105.5
Aug18° / 414.410.86.8
Sep21° / 57611.87.2
Oct23° / 12°1089.512.87.1
Nov26° / 15°1108.713.77.0
Dec29° / 17°1109.114.26.1

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 (%)
16436
26436
36436
46535
56535
66535
76634
86634
96733
106634
116634
126634
136634
146634
156733
166634
176733
186733
196733
206733
216634
226535
236535
246535
256436
266436
276436
286337
296337
306337
316238

Chance of precipitation in December

Any precipitation

Firmat gets around 110 mm of rain over 9.1 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 30% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
628
728
828
928
1029
1129
1229
1330
1430
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2531
2630
2730
2830
2930
3030
3130

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
138292651
237292761
337292761
436292861
535292861
635292871
734292972
833292972
932293082
1031293082
1130293192
1229293192
13282931102
14262932112
15252832122
16242832133
17232732143
18222732153
19212632174
20202632184
21192632194
22182531215
23172431225
24172430236
25162429247
26152329257
27142329268
28142328278
29132228279
30122228289
311222282910

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 06 min at the start of December to 14 h 12 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 5:54 AM to 6:03 AM, and sunset from 7:57 PM to 8:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:547:57
214.15:547:58
314.15:547:59
414.15:548:00
514.15:548:01
614.15:548:01
714.15:548:02
814.15:548:03
914.25:548:04
1014.25:548:04
1114.25:558:05
1214.25:558:06
1314.25:558:06
1414.25:558:07
1514.25:568:08
1614.25:568:08
1714.25:568:09
1814.25:578:09
1914.25:578:10
2014.25:578:11
2114.25:588:11
2214.25:588:12
2314.25:598:12
2414.25:598:12
2514.26:008:13
2614.26:008:13
2714.26:018:14
2814.26:028:14
2914.26:028:14
3014.26:038:15
3114.26:038:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.32 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.39 kWh/m² to a high of 7.32 kWh/m² in December across the year — December's 7.32 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.3Intense
47.3Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.3Intense
167.3Intense
177.3Intense
187.3Intense
197.3Intense
207.3Intense
217.3Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.3Intense
287.3Intense
297.2Intense
307.2Intense
317.2Intense
Planning a trip in December

Is December a good time to visit Firmat?

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

6.1
Sightseeing
9th-best month of the year
7.3
Beach & pool
2nd-best month of the year

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

What to pack for Firmat in December

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

In December, Firmat sees daytime highs around 29°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Firmat 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 Firmat peaks around January 15 at about 13 (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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 21UV 3
UV index (midday)Level
Jan14Extreme
Feb12Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Firmat?

Firmat sits at 33.5°S, 61.5°W, 109 m above sea level, in Argentina. The nearest listed city is Casilda, 55 km away.

Topography around Firmat

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

Within 3 km, the terrain around Firmat has only modest variations in elevation — a maximum elevation change of 24 m around an average of 103 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 42 m; within 80 km, only modest variations in elevation — a maximum elevation change of 106 m.

The land around Firmat is covered by cropland (71%) within 3 km, cropland (88%) within 16 km, and cropland (92%) within 80 km.

3 km
24 m
16 km
42 m
80 km
106 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Casilda 55 km · Venado Tuerto 55 km · Colón 60 km · Cañada de Gómez 72 km · Carcarañá 74 km · Pérez 84 km · Gobernador Gálvez 92 km · Arroyo Seco 96 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 Firmat (-33.4594°, -61.4832°, elevation 109 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).