São Luiz Gonzaga weather in December

In December, São Luiz Gonzaga sees average daytime highs of 31°C and overnight lows near 20°C, with 176 mm of rain across 11.3 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is São Luiz Gonzaga's 6th-clearest and 7th-windiest month. For the whole year in context, see São Luiz Gonzaga's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
20°
10th coldest
Rainfall
176 mm
11.3 wet days
Daylight
13 h 48 min
6:42 AM – 8:30 PM
Cloud cover
52%
6th clearest
Wind
11 km/h
7th windiest
Solar energy
6.76 kWh/m²
Travel score
4.6
out of 10

São Luiz Gonzaga is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in São Luiz Gonzaga reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°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)
13019
23019
33019
43019
53019
63019
73019
83019
93019
103019
113019
123119
133119
143120
153120
163120
173120
183120
193120
203120
213120
223120
233120
243120
253120
263120
273121
283121
293121
303121
313121

How December really feels in São Luiz Gonzaga

Once humidity and wind are folded in, December averages 12 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
12
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.

São Luiz Gonzaga weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 21°17813.413.64.1
Feb31° / 20°15112.8134.4
Mar29° / 19°13611.212.25.2
Apr26° / 16°17610.111.36.7
May23° / 13°141910.66.9
Jun21° / 12°1389.910.26.4
Jul20° / 11°1579.610.46.5
Aug22° / 12°1098.8117.1
Sep24° / 14°16510.311.87.0
Oct26° / 16°23512.512.76.3
Nov29° / 18°17210.213.45.8
Dec31° / 20°17611.313.84.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
36040
45941
55941
65941
75941
85941
95941
105941
115941
125842
135842
145842
155743
165743
175743
185743
195842
205743
215743
225743
235743
245743
255743
265743
275743
285743
295743
305743
315743

Chance of precipitation in December

Any precipitation

São Luiz Gonzaga gets around 176 mm of rain over 11.3 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 36% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
433
533
633
733
833
933
1034
1134
1234
1335
1435
1536
1636
1737
1837
1937
2038
2138
2239
2339
2440
2540
2641
2741
2841
2941
3041
3141

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 54% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
110192832100
210192833100
310182833100
410182833110
510172834110
610172834120
79162834120
89162834130
99152834140
108152834140
118152834150
128142834160
137142834170
147142834180
157132734190
166132734200
176122733220
186112633230
196112633241
205102533251
215102532271
225102532281
23492532291
24492431301
25492430311
26492430321
27392429332
28392429342
29392428352
30392328352
31292328362

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
311calm
411calm
511calm
611calm
711calm
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 42 min at the start of December to 13 h 48 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 6:39 AM to 6:49 AM, and sunset from 8:20 PM to 8:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:398:20
213.76:398:21
313.76:398:21
413.76:398:22
513.76:408:23
613.76:408:24
713.76:408:24
813.76:408:25
913.86:408:26
1013.86:408:26
1113.86:418:27
1213.86:418:28
1313.86:418:28
1413.86:418:29
1513.86:428:29
1613.86:428:30
1713.86:428:30
1813.86:438:31
1913.86:438:32
2013.86:448:32
2113.86:448:33
2213.86:458:33
2313.86:458:34
2413.86:468:34
2513.86:468:34
2613.86:478:35
2713.86:478:35
2813.86:488:36
2913.86:488:36
3013.86:498:36
3113.86:498:37

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.76 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.76 kWh/m² in December across the year — December's 6.76 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.8Intense
Planning a trip in December

Is December a good time to visit São Luiz Gonzaga?

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

4.6
Sightseeing
10th-best month of the year
6.6
Beach & pool
3rd-best month of the year

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

What to pack for São Luiz Gonzaga in December

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

In December, São Luiz Gonzaga sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in São Luiz Gonzaga 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 São Luiz Gonzaga peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 21UV 14Jun 20UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct7High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is São Luiz Gonzaga?

São Luiz Gonzaga sits at 28.4°S, 55.0°W, 264 m above sea level, in Brazil. The nearest listed city is Santo Ângelo, 69 km away.

Topography around São Luiz Gonzaga

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

Within 3 km, the terrain around São Luiz Gonzaga has only modest variations in elevation — a maximum elevation change of 97 m around an average of 217 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 210 m; within 80 km, significant variations in elevation — a maximum elevation change of 399 m.

The land around São Luiz Gonzaga is covered by trees (32%) and cropland (31%) within 3 km, cropland (57%) and grassland (23%) within 16 km, and cropland (43%), grassland (32%) and trees (23%) within 80 km.

3 km
97 m
16 km
210 m
80 km
399 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Santo Ângelo 69 km · Santo Cristo 71 km · Giruá 73 km · Santa Rosa 76 km · Santiago 88 km · Apóstoles 95 km · Leandro N. Alem 96 km · Três de Maio 100 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 São Luiz Gonzaga (-28.4083°, -54.9608°, elevation 264 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).