Tomé-Açu weather in December

In December, Tomé-Açu sees average daytime highs of 33°C and overnight lows near 23°C, with 114 mm of rain across 16.3 wet days and about 12.1 hours of daylight. It is the 5th-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 9% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Tomé-Açu's 7th-clearest and 6th-windiest month. For the whole year in context, see Tomé-Açu's year-round climate.

Daytime high
33°
5th warmest
Overnight low
23°
11th coldest
Rainfall
114 mm
16.3 wet days
Daylight
12 h 06 min
6:05 AM – 6:13 PM
Cloud cover
72%
7th clearest
Wind
7 km/h
6th windiest
Solar energy
5.29 kWh/m²
Travel score
2.8
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 Tomé-Açu 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 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)
13424
23424
33424
43424
53424
63424
73424
83424
93424
103424
113424
123424
133424
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303223
313223

How December really feels in Tomé-Açu

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.

Tomé-Açu weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°22925.512.12.6
Feb31° / 23°29625.512.12.5
Mar31° / 23°38229.6122.5
Apr31° / 23°36428.711.92.5
May31° / 23°2172511.92.8
Jun32° / 22°7315.411.93.6
Jul33° / 22°399.411.93.8
Aug34° / 23°195.211.93.3
Sep35° / 23°184.4123.0
Oct35° / 23°286.412.12.9
Nov34° / 24°568.512.12.9
Dec33° / 23°11416.312.12.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% 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 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24159
34060
44060
54060
64060
73961
83961
93763
103763
113565
123565
133367
143367
153169
163070
172971
182773
192674
202575
212377
222377
232278
242179
252179
262179
272080
282080
292080
302080
311981

Chance of precipitation in December

Any precipitation

Tomé-Açu gets around 114 mm of rain over 16.3 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 53% and peaks near 71% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
132
233
333
435
536
637
739
840
942
1044
1145
1247
1349
1451
1553
1655
1756
1858
1959
2060
2162
2263
2364
2465
2566
2667
2768
2868
2969
3070
3171

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
110846
210846
39847
49847
58857
68857
78848
87858
97858
107849
116859
126859
136859
1458510
1558510
1658510
1748610
1848511
1948511
2038611
2138611
2238512
2328612
2428612
2528513
2628414
2718514
2818415
2918415
3018316
3118316

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 5:58 AM to 6:12 AM, and sunset from 6:06 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:586:06
212.15:596:07
312.15:596:07
412.16:006:08
512.16:006:08
612.16:006:08
712.16:016:09
812.16:016:09
912.16:026:10
1012.16:026:10
1112.16:026:11
1212.16:036:11
1312.16:036:12
1412.16:046:12
1512.16:046:12
1612.16:056:13
1712.16:056:13
1812.16:066:14
1912.16:066:14
2012.16:066:15
2112.16:076:15
2212.16:076:16
2312.16:086:16
2412.16:086:17
2512.16:096:17
2612.16:096:18
2712.16:106:18
2812.16:106:19
2912.16:116:19
3012.16:116:19
3112.16:126:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.29 kWh/m².

For context, solar energy here swings from a low near 4.15 kWh/m² to a high of 6.26 kWh/m² in October across the year — December's 5.29 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Tomé-Açu

In seasonPeak

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

Tomé-Açu's monsoon runs January–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 Tomé-Açu?

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

2.8
Sightseeing
7th-best month of the year
5.1
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Tomé-Açu.

What to pack for Tomé-Açu in December

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

In December, Tomé-Açu sees daytime highs around 33°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Tomé-Açu in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tomé-Açu peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 highMar 16UV 15Dec 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec10Very high

Air quality in Tomé-Açu 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 Tomé-Açu is worst in November — around 32 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (June, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1931 µg/m³Jun 1410 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar18Moderate
Apr15Moderate
May10Good
Jun9Good
Jul11Good
Aug14Moderate
Sep16Moderate
Oct19Moderate
Nov32Moderate
Dec27Moderate
Location & terrain

Where is Tomé-Açu?

Tomé-Açu sits at 2.4°S, 48.2°W, 21 m above sea level, in Brazil. The nearest listed city is Acará, 51 km away.

Topography around Tomé-Açu

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

Within 3 km, the terrain around Tomé-Açu has only modest variations in elevation — a maximum elevation change of 57 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, only modest variations in elevation — a maximum elevation change of 133 m.

The land around Tomé-Açu is covered by trees (64%) and grassland (28%) within 3 km, trees (67%) and grassland (32%) within 16 km, and trees (80%) and grassland (20%) within 80 km.

3 km
57 m
16 km
73 m
80 km
133 m
treesgrasslandartificial surfaceswater
December weather nearby: Acará 51 km · Concórdia do Pará 52 km · Aurora do Pará 73 km · Ipixuna do Pará 75 km · Mãe do Rio 79 km · Moju 91 km · São Domingos do Capim 93 km · Bujaru 101 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 Tomé-Açu (-2.4189°, -48.1522°, elevation 21 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).