Santana weather in December

In December, Santana sees average daytime highs of 32°C and overnight lows near 24°C, with 106 mm of rain across 19.3 wet days and about 12 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 21% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of December to 12 hours by month's end. Set against the rest of the year, December is Santana's 7th-clearest and 4th-windiest month. For the whole year in context, see Santana's year-round climate.

Daytime high
32°
5th warmest
Overnight low
24°
9th coldest
Rainfall
106 mm
19.3 wet days
Daylight
12 hours
6:21 AM – 6:21 PM
Cloud cover
64%
7th clearest
Wind
10 km/h
4th windiest
Solar energy
5.01 kWh/m²
Travel score
3.3
out of 10

Santana is locality 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 32°C through the month.

A typical December day in Santana reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, December runs about 1°C cooler than November and about 2°C warmer than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How December really feels in Santana

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.

Santana weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°22927.1122.9
Feb29° / 24°27925.9122.9
Mar30° / 24°33528.7122.9
Apr30° / 24°35028.8122.7
May30° / 24°32429.4122.7
Jun31° / 24°17226.5122.9
Jul31° / 24°12724.9123.1
Aug32° / 24°5916.6123.6
Sep33° / 24°248.5124.0
Oct33° / 24°185124.0
Nov33° / 24°317.3123.8
Dec32° / 24°10619.3123.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35347
45446
55347
65347
75248
85248
95149
105050
115050
124951
134753
144852
154654
164555
174357
184357
194258
204159
213862
223862
233763
243763
253664
263565
273466
283466
293367
303268
313268

Chance of precipitation in December

Any precipitation

Santana gets around 106 mm of rain over 19.3 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 63% and peaks near 82% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
136
238
339
441
543
645
747
849
951
1053
1156
1258
1360
1462
1564
1666
1767
1869
1970
2071
2172
2274
2375
2476
2577
2678
2779
2879
2980
3081
3182

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 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
18317
28317
38317
48317
58317
68317
78218
88218
98119
108119
118020
127921
137822
147723
157723
167624
177525
187525
197426
207327
217327
227228
237228
247129
257129
267129
277129
287129
297129
307129
317129

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 10 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
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:14 AM to 6:28 AM, and sunset from 6:15 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:146:15
212.06:156:15
312.06:156:15
412.06:166:16
512.06:166:16
612.06:166:16
712.06:176:17
812.06:176:17
912.06:186:18
1012.06:186:18
1112.06:196:19
1212.06:196:19
1312.06:196:20
1412.06:206:20
1512.06:206:20
1612.06:216:21
1712.06:216:21
1812.06:226:22
1912.06:226:22
2012.06:236:23
2112.06:236:23
2212.06:246:24
2312.06:246:24
2412.06:256:25
2512.06:256:25
2612.06:256:26
2712.06:266:26
2812.06:266:27
2912.06:276:27
3012.06:276:27
3112.06:286:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.01 kWh/m².

For context, solar energy here swings from a low near 3.76 kWh/m² to a high of 6.3 kWh/m² in October across the year — December's 5.01 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.2Bright
105.2Bright
115.2Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.6Bright
314.5Bright
Planning a trip in December

Hazard calendar for Santana

In seasonPeak

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

Santana's monsoon runs January–June, 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 Santana?

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

3.3
Sightseeing
5th-best month of the year
5.1
Beach & pool
5th-best month of the year

December is a weaker month for outdoor sightseeing in Santana.

What to pack for Santana in December

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

In December, Santana sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Santana in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 38 km away) is warmest in October at about 30°C and coldest in March near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar28Tropical
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Santana in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santana peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Santana 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 Santana is worst in February — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2020 µg/m³Jul 177 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb21Moderate
Mar20Moderate
Apr17Moderate
May10Good
Jun8Good
Jul7Good
Aug7Good
Sep9Good
Oct13Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Santana?

Santana sits at 0.0°S, 51.2°W, 1 m above sea level, in Brazil. The nearest listed city is Macapá, 15 km away.

Topography around Santana

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

Within 3 km, the terrain around Santana has only modest variations in elevation — a maximum elevation change of 35 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 42 m; within 80 km, only modest variations in elevation — a maximum elevation change of 171 m.

The land around Santana is covered by trees (36%), artificial surfaces (31%) and grassland (21%) within 3 km, trees (44%) and water (29%) within 16 km, and trees (63%) within 80 km.

3 km
35 m
16 km
42 m
80 km
171 m
treesgrasslandartificial surfacesbare terrainwaterwetland
December weather nearby: Macapá 15 km · Mazagão 15 km · Porto Grande 88 km · Afuá 89 km · Chaves 133 km · Gurupá 161 km · Laranjal do Jari 172 km · Anajás 173 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 Santana (-0.0382°, -51.1748°, elevation 1 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).