Piratini weather in December

In December, Piratini sees average daytime highs of 27°C and overnight lows near 16°C, with 115 mm of rain across 11.2 wet days and about 14 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 36% 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 Piratini's 1st-clearest and 6th-windiest month. For the whole year in context, see Piratini's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
16°
9th coldest
Rainfall
115 mm
11.2 wet days
Daylight
14 hours
6:27 AM – 8:30 PM
Cloud cover
56%
1st clearest
Wind
13 km/h
6th windiest
Solar energy
6.62 kWh/m²
Travel score
6.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical December day in Piratini reaches about 27°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52615
62615
72616
82616
92616
102616
112616
122616
132716
142716
152716
162716
172716
182716
192717
202717
212717
222717
232717
242717
252717
262717
272817
282817
292817
302818
312818

Piratini weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°13413.313.85.9
Feb27° / 18°12212.513.15.9
Mar26° / 17°10711.212.26.5
Apr23° / 14°12110.211.36.8
May19° / 11°100910.46.2
Jun17° / 1109.3105.4
Jul16° / 1189.510.25.2
Aug18° / 1189.410.96.0
Sep19° / 10°14510.611.85.9
Oct22° / 12°14411.712.86.3
Nov24° / 14°1109.813.66.9
Dec27° / 16°11511.2146.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35248
45149
55149
65050
74951
84951
94951
104951
114951
124951
134852
144852
154852
164951
174852
184753
194852
204852
214951
224951
234951
244951
255050
265050
274951
285050
295149
305050
315050

Chance of precipitation in December

Any precipitation

Piratini gets around 115 mm of rain over 11.2 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 36% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
233
333
433
533
633
733
833
933
1034
1134
1234
1334
1435
1535
1636
1736
1837
1937
2038
2138
2238
2338
2438
2539
2639
2739
2839
2939
3039
3140

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 32% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1242931151
2242931151
3242831161
4242831161
5232732161
6232732172
7222632172
8222533182
9212533192
10202533202
11202433212
12192433222
13182333232
14172333243
15162333263
16152233273
17142132294
18132131304
19132131315
20122030335
21112029346
22112028356
23101927367
24101927378
25101926378
2691925389
27919253810
28918243810
29818243811
30818243811
31818243812

Wind in December

Winds average 13 km/h in December.

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

05101520151015202531
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
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

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 6:25 AM to 6:35 AM, and sunset from 8:19 PM to 8:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.96:258:19
213.96:258:20
313.96:258:21
413.96:258:22
514.06:258:22
614.06:258:23
714.06:258:24
814.06:268:24
914.06:268:25
1014.06:268:26
1114.06:268:27
1214.06:268:27
1314.06:278:28
1414.06:278:28
1514.06:278:29
1614.06:278:30
1714.06:288:30
1814.06:288:31
1914.06:298:31
2014.06:298:32
2114.06:298:32
2214.16:308:33
2314.06:308:33
2414.06:318:34
2514.06:318:34
2614.06:328:35
2714.06:328:35
2814.06:338:35
2914.06:348:36
3014.06:348:36
3114.06:358:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.62 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 6.62 kWh/m² in December across the year — December's 6.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in December

Is December a good time to visit Piratini?

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

6.4
Sightseeing
4th-best month of the year
6.4
Beach & pool
1st-best month of the year

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

What to pack for Piratini in December

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

In December, Piratini sees daytime highs around 27°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

UV index in Piratini 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 Piratini peaks around January 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 13UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct8Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is Piratini?

Piratini sits at 31.4°S, 53.1°W, 361 m above sea level, in Brazil. The nearest listed city is Canguçu, 41 km away.

Topography around Piratini

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

Within 3 km, the terrain around Piratini has only modest variations in elevation — a maximum elevation change of 186 m around an average of 313 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 409 m; within 80 km, significant variations in elevation — a maximum elevation change of 507 m.

The land around Piratini is covered by grassland (49%) and trees (38%) within 3 km, trees (45%) and grassland (45%) within 16 km, and trees (50%) and grassland (35%) within 80 km.

3 km
186 m
16 km
409 m
80 km
507 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Canguçu 41 km · Capão do Leão 68 km · Pelotas 81 km · Arroio Grande 88 km · Bagé 96 km · São Lourenço do Sul 107 km · Caçapava do Sul 110 km · Encruzilhada do Sul 115 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Piratini (-31.4481°, -53.1042°, elevation 361 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).