São Gonçalo do Amarante weather in December

In December, São Gonçalo do Amarante sees average daytime highs of 30°C and overnight lows near 26°C, with 27 mm of rain across 7.6 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 8th-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 51% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of December to 12 h 12 min by month's end. Set against the rest of the year, December is São Gonçalo do Amarante's 7th-clearest and 6th-windiest month. For the whole year in context, see São Gonçalo do Amarante's year-round climate.

Daytime high
30°
5th warmest
Overnight low
26°
12th coldest
Rainfall
27 mm
7.6 wet days
Daylight
12 h 12 min
5:26 AM – 5:38 PM
Cloud cover
45%
7th clearest
Wind
20 km/h
6th windiest
Solar energy
6.14 kWh/m²
Travel score
5.5
out of 10

São Gonçalo do Amarante 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 30°C through the month.

A typical December day in São Gonçalo do Amarante reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°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)
13026
23026
33026
43026
53026
63026
73026
83026
93026
103026
113026
123026
133026
143026
153026
163026
173026
183026
193026
203026
213026
223026
233026
243026
253026
263026
273026
283026
293026
303026
313025

How December really feels in São Gonçalo do Amarante

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.

São Gonçalo do Amarante 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
Jan29° / 25°10318.412.24.3
Feb29° / 25°15121.312.13.8
Mar29° / 25°21525.9123.5
Apr29° / 25°25925.811.93.5
May29° / 25°11919.411.84.3
Jun29° / 25°6212.911.85.3
Jul30° / 24°316.511.86.0
Aug30° / 25°61.611.96.4
Sep30° / 25°30.6126.6
Oct30° / 25°4112.16.5
Nov30° / 26°71.912.26.2
Dec30° / 26°277.612.25.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37228
47228
57228
67228
77129
87129
97030
107030
116931
126931
136832
146832
156832
166733
176733
186634
196634
206634
216634
226535
236535
246436
256436
266436
276337
286238
296238
306139
316040

Chance of precipitation in December

Any precipitation

São Gonçalo do Amarante gets around 27 mm of rain over 7.6 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 25% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
113
213
314
414
515
615
716
817
918
1018
1119
1220
1321
1422
1524
1625
1726
1827
1928
2029
2130
2231
2332
2433
2534
2635
2736
2837
2939
3040
3141

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11981
21972
31972
41972
51972
61972
71972
81972
91972
100982
110991
120991
130991
140991
150991
160991
170991
180991
190991
200982
210982
220982
230973
240973
250964
260964
270964
280955
290955
300946
310946

Wind in December

Winds average 20 km/h in December.

Across December, daily wind ranges from about 19 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
620breezy
720breezy
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 12 min at the start of December to 12 h 12 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 5:20 AM to 5:33 AM, and sunset from 5:31 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:205:31
212.25:205:32
312.25:215:32
412.25:215:33
512.25:215:33
612.25:225:34
712.25:225:34
812.25:225:35
912.25:235:35
1012.25:235:35
1112.25:245:36
1212.25:245:36
1312.25:245:37
1412.25:255:37
1512.25:255:38
1612.25:265:38
1712.25:265:39
1812.25:275:39
1912.25:275:40
2012.25:285:40
2112.25:285:41
2212.25:295:41
2312.25:295:42
2412.25:305:42
2512.25:305:43
2612.25:305:43
2712.25:315:43
2812.25:315:44
2912.25:325:44
3012.25:325:45
3112.25:335:45

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.14 kWh/m².

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.78 kWh/m² in September across the year — December's 6.14 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Bright
276.0Bright
286.0Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in December

Hazard calendar for São Gonçalo do Amarante

In seasonPeak

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

São Gonçalo do Amarante's monsoon runs February–May, 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 São Gonçalo do Amarante?

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

5.5
Sightseeing
6th-best month of the year
7.5
Beach & pool
6th-best month of the year

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

What to pack for São Gonçalo do Amarante in December

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

In December, São Gonçalo do Amarante sees daytime highs around 30°C and nights near 26°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near São Gonçalo do Amarante in December

The nearest coast averages about 28°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 28 km away) is warmest in April at about 29°C and coldest in August near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in São Gonçalo do Amarante 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 São Gonçalo do Amarante peaks around March 16 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 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is São Gonçalo do Amarante?

São Gonçalo do Amarante sits at 3.6°S, 39.0°W, 23 m above sea level, in Brazil. The nearest listed city is Paracuru, 23 km away.

Topography around São Gonçalo do Amarante

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Gonçalo do Amarante.

Within 3 km, the terrain around São Gonçalo do Amarante has only modest variations in elevation — a maximum elevation change of 35 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around São Gonçalo do Amarante is covered by trees (37%) and grassland (31%) within 3 km, trees (41%), grassland (25%) and shrubs (23%) within 16 km, and water (30%), shrubs (27%) and trees (22%) within 80 km.

3 km
35 m
16 km
130 m
80 km
1,081 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Paracuru 23 km · Paraipaba 27 km · Caucaia 38 km · Pentecoste 39 km · Umirim 43 km · Maranguape 44 km · Maracanaú 48 km · Fortaleza 49 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 São Gonçalo do Amarante (-3.6072°, -38.9683°, elevation 23 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).