Ilha Solteira weather in December

In December, Ilha Solteira sees average daytime highs of 31°C and overnight lows near 24°C, with 196 mm of rain across 20.6 wet days and about 13.2 hours of daylight. It is the 4th-warmest and 2nd-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 19% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 06 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Ilha Solteira's 11th-clearest and 8th-windiest month. For the whole year in context, see Ilha Solteira's year-round climate.

Daytime high
31°
4th warmest
Overnight low
24°
10th coldest
Rainfall
196 mm
20.6 wet days
Daylight
13 h 12 min
6:45 AM – 7:58 PM
Cloud cover
69%
11th clearest
Wind
8 km/h
8th windiest
Solar energy
6.04 kWh/m²
Travel score
3.4
out of 10

Ilha Solteira 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 Ilha Solteira reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How December really feels in Ilha Solteira

Once humidity and wind are folded in, December averages 31 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
31
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.

Ilha Solteira weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°23622.213.13.3
Feb31° / 24°18719.612.73.4
Mar31° / 24°15718.412.13.8
Apr30° / 22°577.911.55.4
May28° / 19°445.4117.2
Jun27° / 18°232.910.87.9
Jul28° / 17°13210.97.9
Aug30° / 19°182.611.36.4
Sep31° / 21°566.711.94.9
Oct32° / 22°9912.312.54.0
Nov31° / 23°14416133.7
Dec31° / 24°19620.613.23.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33466
43466
53367
63268
73268
83268
93268
103367
113367
123367
133367
143565
153664
163763
173763
183961
193961
204060
213961
223961
234060
244060
253862
263862
273862
283763
293664
303664
313565

Chance of precipitation in December

Any precipitation

Ilha Solteira gets around 196 mm of rain over 20.6 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 67% and peaks near 70% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
164
266
367
467
568
668
768
868
968
1068
1167
1267
1366
1466
1565
1665
1764
1864
1964
2064
2164
2265
2365
2466
2566
2667
2768
2868
2969
3070
3170

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 82% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11622701
21521721
31520731
40419761
50418771
60417781
70317791
80316801
90316792
100216802
110215812
120215812
130215812
140115822
150115822
160114832
170114832
180114832
190113842
200113833
210112843
220112843
230111853
240011863
250010873
260010873
27009883
28009883
29008893
30008893
31008893

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 06 min at the start of December to 13 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 6:41 AM to 6:52 AM, and sunset from 7:50 PM to 8:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:417:50
213.26:417:50
313.26:417:51
413.26:417:51
513.26:417:52
613.26:417:53
713.26:427:53
813.26:427:54
913.26:427:55
1013.26:437:55
1113.26:437:56
1213.26:437:56
1313.26:437:57
1413.26:447:57
1513.26:447:58
1613.26:457:58
1713.26:457:59
1813.26:458:00
1913.26:468:00
2013.26:468:01
2113.26:478:01
2213.26:478:02
2313.26:488:02
2413.26:488:02
2513.26:498:03
2613.26:498:03
2713.26:508:04
2813.26:508:04
2913.26:518:04
3013.26:518:05
3113.26:528:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.04 kWh/m².

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 6.2 kWh/m² in November across the year — December's 6.04 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.0Intense
66.0Intense
76.0Intense
86.0Intense
96.0Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Bright
306.0Bright
315.9Bright
Planning a trip in December

Hazard calendar for Ilha Solteira

In seasonPeak

In December, Ilha Solteira sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Ilha Solteira's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Ilha Solteira?

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

3.4
Sightseeing
10th-best month of the year
5.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Ilha Solteira.

What to pack for Ilha Solteira in December

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

In December, Ilha Solteira sees daytime highs around 31°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Ilha Solteira in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ilha Solteira peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 22UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Ilha Solteira 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 Ilha Solteira is worst in September — around 18 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (July, 5 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1717 µg/m³Jul 125 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr7Good
May7Good
Jun6Good
Jul5Good
Aug9Good
Sep18Moderate
Oct12Good
Nov6Good
Dec6Good
Location & terrain

Where is Ilha Solteira?

Ilha Solteira sits at 20.4°S, 51.3°W, 372 m above sea level, in Brazil. The nearest listed city is Pereira Barreto, 33 km away.

Topography around Ilha Solteira

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

Within 3 km, the terrain around Ilha Solteira has only modest variations in elevation — a maximum elevation change of 116 m around an average of 347 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 153 m; within 80 km, significant variations in elevation — a maximum elevation change of 294 m.

The land around Ilha Solteira is covered by grassland (30%), cropland (30%) and trees (23%) within 3 km, cropland (40%), grassland (23%) and water (22%) within 16 km, and cropland (34%), grassland (33%) and trees (24%) within 80 km.

3 km
116 m
16 km
153 m
80 km
294 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Pereira Barreto 33 km · Aparecida do Taboado 46 km · Santa Fé do Sul 50 km · Castilho 51 km · Andradina 52 km · Três Lagoas 54 km · Mirandópolis 82 km · Jales 85 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 Ilha Solteira (-20.4328°, -51.3425°, elevation 372 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).