Jaicós weather in December

In December, Jaicós sees average daytime highs of 35°C and overnight lows near 25°C, with 48 mm of rain across 7.3 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 28% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Jaicós's 8th-clearest and 8th-windiest month. For the whole year in context, see Jaicós's year-round climate.

Daytime high
35°
4th warmest
Overnight low
25°
11th coldest
Rainfall
48 mm
7.3 wet days
Daylight
12 h 24 min
5:28 AM – 5:53 PM
Cloud cover
61%
8th clearest
Wind
10 km/h
8th windiest
Solar energy
5.95 kWh/m²
Travel score
2.7
out of 10

Jaicós 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 35°C through the month.

A typical December day in Jaicós reaches about 35°C in the afternoon and slips back to 25°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 38°C. Set against its neighbours, December runs about 1°C cooler than November and about 2°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23625
33625
43525
53525
63525
73525
83525
93525
103525
113525
123525
133525
143525
153525
163525
173525
183525
193525
203525
213525
223525
233525
243525
253525
263425
273425
283425
293425
303425
313425

How December really feels in Jaicós

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.

Jaicós weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°1241612.42.9
Feb32° / 23°12615.712.23.2
Mar32° / 23°14018.2123.3
Apr32° / 23°8211.211.83.7
May33° / 23°304.711.73.9
Jun33° / 22°40.911.64.5
Jul33° / 21°30.611.64.5
Aug34° / 22°10.111.83.9
Sep36° / 23°10.1122.8
Oct37° / 25°71.612.22.1
Nov36° / 26°213.812.32.2
Dec35° / 25°487.312.42.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45347
55446
65446
75446
85347
95347
105347
115347
125248
135248
145248
155248
165050
175050
185050
195050
204951
214852
224654
234555
244555
254555
264357
274357
284258
294258
304357
314258

Chance of precipitation in December

Any precipitation

Jaicós gets around 48 mm of rain over 7.3 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 24% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
116
216
316
416
516
616
717
817
918
1019
1120
1220
1321
1422
1523
1624
1724
1825
1926
2027
2127
2228
2329
2430
2530
2631
2732
2833
2934
3035
3136

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 39% 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 (%)
111745326
211645326
311645326
411645326
511644327
611644327
711644327
811643338
911543338
1011542349
1101542349
1201441359
13014403610
14013393710
15013383810
16013374011
17012364111
18012354112
19012344212
20012334313
21011324314
22011314414
23011304415
24011294416
25010284417
26010274518
27010264519
28010254521
29010244422
3009234423
3109224424

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:22 AM to 5:35 AM, and sunset from 5:46 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:225:46
212.45:235:47
312.45:235:47
412.45:235:48
512.45:245:48
612.45:245:49
712.45:245:49
812.45:255:50
912.45:255:50
1012.45:255:51
1112.45:265:51
1212.45:265:52
1312.45:275:52
1412.45:275:52
1512.45:285:53
1612.45:285:53
1712.45:285:54
1812.45:295:54
1912.45:295:55
2012.45:305:55
2112.45:305:56
2212.45:315:56
2312.45:315:57
2412.45:325:57
2512.45:325:58
2612.45:335:58
2712.45:335:59
2812.45:345:59
2912.45:346:00
3012.45:356:00
3112.45:356:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.95 kWh/m².

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.94 kWh/m² in October across the year — December's 5.95 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Jaicós

In seasonPeak

None of Jaicós's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Jaicós's rainy season runs January–April, when most of the year's rain falls.

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

Is December a good time to visit Jaicós?

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

2.7
Sightseeing
10th-best month of the year
5.7
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Jaicós.

What to pack for Jaicós in December

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

In December, Jaicós sees daytime highs around 35°C and nights near 25°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Jaicós 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 Jaicós peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jun 23UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Jaicós?

Jaicós sits at 7.4°S, 41.1°W, 290 m above sea level, in Brazil. The nearest listed city is Picos, 48 km away.

Topography around Jaicós

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

Within 3 km, the terrain around Jaicós has only modest variations in elevation — a maximum elevation change of 96 m around an average of 302 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 222 m; within 80 km, large variations in elevation — a maximum elevation change of 694 m.

The land around Jaicós is covered by shrubs (58%) and grassland (27%) within 3 km, shrubs (79%) within 16 km, and shrubs (77%) within 80 km.

3 km
96 m
16 km
222 m
80 km
694 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Picos 48 km · Araripina 75 km · Salitre 76 km · Pio IX 82 km · Ipueiras 84 km · Paulistana 87 km · Campos Sales 90 km · Trindade 106 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 Jaicós (-7.3592°, -41.1378°, elevation 290 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).