Porteiras weather in December

In December, Porteiras sees average daytime highs of 33°C and overnight lows near 23°C, with 35 mm of rain across 5.1 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels humid.

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 Porteiras's 7th-clearest and 8th-windiest month. For the whole year in context, see Porteiras's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
23°
12th coldest
Rainfall
35 mm
5.1 wet days
Daylight
12 h 24 min
5:20 AM – 5:46 PM
Cloud cover
57%
7th clearest
Wind
10 km/h
8th windiest
Solar energy
6.4 kWh/m²
Travel score
3.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical December day in Porteiras reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, December runs on par with November and about 2°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53423
63423
73423
83423
93423
103423
113423
123423
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323
313323

How December really feels in Porteiras

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.

Porteiras weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°10612.512.43.8
Feb31° / 22°1201312.24.0
Mar31° / 22°13916.412.14.1
Apr30° / 22°8812.211.84.6
May30° / 21°417.111.75.5
Jun29° / 20°153.511.66.3
Jul29° / 19°82.511.66.5
Aug30° / 19°40.911.86.0
Sep33° / 20°30.4124.8
Oct34° / 22°91.512.23.9
Nov34° / 23°142.512.33.6
Dec33° / 23°355.112.43.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 24% of December, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
26040
36040
46040
56139
66040
76040
86040
96040
106040
116040
125941
135941
145842
155842
165743
175743
185743
195545
205545
215446
225446
235347
245248
255248
265149
275050
284951
295050
304951
314951

Chance of precipitation in December

Any precipitation

Porteiras gets around 35 mm of rain over 5.1 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 17% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
19
29
310
410
510
611
711
812
913
1014
1114
1215
1316
1417
1517
1618
1718
1819
1919
2019
2120
2220
2321
2421
2521
2622
2722
2823
2923
3024
3125

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 45% of days. Sticky, muggy-or-worse air turns up on roughly 24% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
133549131
233549122
333548122
433548122
533547122
633547122
733547133
833546143
933446143
1033445153
1133345173
1223245182
1323245192
1423145202
1523045222
1612945232
1712945242
1812845251
1912744261
2012744271
2112644281
2212544291
2312544301
2412444311
2512343311
2612343322
2712243322
2812242332
2912142333
3012141343
3112041344

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
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 5:14 AM to 5:27 AM, and sunset from 5:38 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:145:38
212.45:145:39
312.45:155:39
412.45:155:40
512.45:155:40
612.45:165:41
712.45:165:41
812.45:165:42
912.45:175:42
1012.45:175:43
1112.45:175:43
1212.45:185:44
1312.45:185:44
1412.45:195:45
1512.45:195:45
1612.45:205:46
1712.45:205:46
1812.45:205:47
1912.45:215:47
2012.45:215:48
2112.45:225:48
2212.45:225:49
2312.45:235:49
2412.45:235:50
2512.45:245:50
2612.45:245:50
2712.45:255:51
2812.45:255:51
2912.45:265:52
3012.45:265:52
3112.45:275:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.4 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.93 kWh/m² in October across the year — December's 6.4 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.1Intense
316.1Intense
Planning a trip in December

Hazard calendar for Porteiras

In seasonPeak

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

Porteiras'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 Porteiras?

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

3.7
Sightseeing
11th-best month of the year
6.8
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Porteiras. The water and warmth also suit a beach or pool day.

What to pack for Porteiras in December

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

In December, Porteiras sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Porteiras 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 Porteiras peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 12UV 15Jul 13UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Porteiras?

Porteiras sits at 7.5°S, 39.1°W, 521 m above sea level, in Brazil. The nearest listed city is Brejo Santo, 15 km away.

Topography around Porteiras

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

Within 3 km, the terrain around Porteiras has only modest variations in elevation — a maximum elevation change of 201 m around an average of 537 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 629 m; within 80 km, large variations in elevation — a maximum elevation change of 763 m.

The land around Porteiras is covered by grassland (52%) within 3 km, grassland (38%), shrubs (28%) and trees (27%) within 16 km, and shrubs (60%) and grassland (23%) within 80 km.

3 km
201 m
16 km
629 m
80 km
763 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Brejo Santo 15 km · Jardim 19 km · Milagres 31 km · Missão Velha 32 km · Barbalha 32 km · Mauriti 41 km · Juazeiro do Norte 42 km · Crato 46 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 Porteiras (-7.5347°, -39.1183°, elevation 521 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).