Giruá weather in December

In December, Giruá sees average daytime highs of 30°C and overnight lows near 19°C, with 194 mm of rain across 14.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 39% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is Giruá's 8th-clearest and 8th-windiest month. For the whole year in context, see Giruá's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
19°
10th coldest
Rainfall
194 mm
14.2 wet days
Daylight
13 h 48 min
6:41 AM – 8:27 PM
Cloud cover
55%
8th clearest
Wind
11 km/h
8th windiest
Solar energy
6.65 kWh/m²
Travel score
4.6
out of 10

Giruá is 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 30°C through the month.

A typical December day in Giruá reaches about 30°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 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)
12918
23019
33019
43019
53019
63019
73019
83019
93019
103019
113019
123019
133019
143019
153019
163019
173019
183020
193020
203020
213020
223020
233020
243020
253020
263020
273020
283020
293020
303120
313120

How December really feels in Giruá

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Giruá 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
Jan30° / 20°18215.713.64.3
Feb30° / 20°17615.6134.5
Mar29° / 19°15012.912.25.4
Apr26° / 16°18410.611.46.6
May22° / 13°1689.410.66.8
Jun20° / 12°16110.210.36.3
Jul20° / 11°16810.110.46.4
Aug22° / 12°1159117.1
Sep24° / 14°1781111.86.8
Oct26° / 16°25113.912.76.1
Nov28° / 17°18111.913.45.7
Dec30° / 19°19414.213.74.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35446
45446
55446
65446
75446
85446
95446
105446
115446
125446
135446
145446
155446
165446
175446
185446
195545
205545
215446
225446
235347
245347
255248
265248
275248
285248
295248
305248
315248

Chance of precipitation in December

Any precipitation

Giruá gets around 194 mm of rain over 14.2 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 45% and peaks near 49% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
442
542
642
743
843
943
1043
1143
1243
1343
1444
1544
1645
1745
1845
1946
2046
2147
2247
2348
2448
2549
2649
2749
2849
2949
3049
3149

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1132029335
2132028345
3132028345
4122028346
5121928356
6121928356
7111928357
8111828367
9111828368
10101828369
11101728369
121017283610
13916283611
14916273612
15815273613
16815273615
17814273616
18714263517
19713263519
20613263520
21612253521
22512253523
23512253524
24511243525
25411243526
26411243527
27410233428
28310233429
29310243430
3039243330
3139243331

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
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 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 12 minutes over December. Sunrise moves from 6:38 AM to 6:48 AM, and sunset from 8:17 PM to 8:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:388:17
213.76:388:17
313.76:388:18
413.76:388:19
513.76:388:20
613.76:388:20
713.76:388:21
813.76:388:22
913.76:398:22
1013.76:398:23
1113.76:398:24
1213.76:398:24
1313.86:408:25
1413.86:408:25
1513.86:408:26
1613.86:418:27
1713.86:418:27
1813.86:418:28
1913.86:428:28
2013.86:428:29
2113.86:438:29
2213.86:438:30
2313.86:438:30
2413.86:448:31
2513.86:448:31
2613.86:458:31
2713.86:468:32
2813.86:468:32
2913.86:478:33
3013.86:478:33
3113.86:488:33

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.65 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 6.65 kWh/m² in December across the year — December's 6.65 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.7Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in December

Is December a good time to visit Giruá?

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
6.3
Beach & pool
4th-best month of the year

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

What to pack for Giruá in December

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

In December, Giruá sees daytime highs around 30°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Giruá 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 Giruá peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 20UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct7Very high
Nov11Extreme
Dec12Extreme

Air quality in Giruá 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 Giruá is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1516 µg/m³Mar 156 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug12Moderate
Sep17Moderate
Oct11Good
Nov8Good
Dec7Good
Location & terrain

Where is Giruá?

Giruá sits at 28.0°S, 54.3°W, 432 m above sea level, in Brazil. The nearest listed city is Santa Rosa, 22 km away.

Topography around Giruá

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

Within 3 km, the terrain around Giruá has only modest variations in elevation — a maximum elevation change of 93 m around an average of 392 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 206 m; within 80 km, significant variations in elevation — a maximum elevation change of 509 m.

The land around Giruá is covered by cropland (62%) and trees (20%) within 3 km, cropland (74%) and trees (21%) within 16 km, and cropland (59%) and trees (30%) within 80 km.

3 km
93 m
16 km
206 m
80 km
509 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Santa Rosa 22 km · Três de Maio 30 km · Santo Ângelo 31 km · Santo Cristo 38 km · Horizontina 45 km · Ijuí 58 km · São Luiz Gonzaga 73 km · Três Passos 76 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 Giruá (-28.0283°, -54.3497°, elevation 432 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).