Jacareacanga weather in December

In December, Jacareacanga sees average daytime highs of 30°C and overnight lows near 23°C, with 309 mm of rain across 28 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 4th-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 2% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Jacareacanga's 8th-clearest and 8th-windiest month. For the whole year in context, see Jacareacanga's year-round climate.

Daytime high: 30°; 7th warmest
Overnight low: 23°; 8th coldest
Rainfall: 309 mm; 28 wet days
Daylight: 12 h 24 min; 6:36 AM – 6:58 PM
Cloud cover: 86%; 8th clearest
Wind: 5 km/h; 8th windiest
Solar energy: 4.7 kWh/m²
Travel score: 2.7; out of 10

← November Jacareacanga year-round climate January →Best places to visit in December

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

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 Jacareacanga reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	31	31	31	31	31	31	31	31	31	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	24	24	24	24	24	24	24	24	24	24	24	24	24	24	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23
31	30	23

How December really feels in Jacareacanga

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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Jacareacanga weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 23°	367	29.5	12.3	2.7
Feb	30° / 23°	326	26.9	12.2	2.7
Mar	30° / 23°	378	29.5	12	2.6
Apr	30° / 23°	298	27.8	11.9	2.7
May	30° / 23°	184	24.4	11.7	3.2
Jun	31° / 23°	60	11.2	11.6	4.5
Jul	32° / 23°	40	7.4	11.7	4.6
Aug	33° / 24°	45	8.2	11.8	3.8
Sep	32° / 24°	126	16.5	12	3.2
Oct	32° / 24°	185	22.5	12.1	2.9
Nov	31° / 24°	244	24.9	12.3	2.7
Dec	30° / 23°	309	28	12.4	2.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 7% of December, with mostly cloudy or overcast conditions the remaining 90%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	10	10	10	9	9	9	9	9	9	9	9	8	8	7	7	8	8
Cloudier (%)	89	89	89	89	89	89	89	89	89	89	89	89	89	89	90	90	90	91	91	91	91	91	91	91	91	92	92	93	93	92	92

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	11	89
10	11	89
11	11	89
12	11	89
13	11	89
14	11	89
15	10	90
16	10	90
17	10	90
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	8	92
27	8	92
28	7	93
29	7	93
30	8	92
31	8	92

Chance of precipitation in December

Any precipitation

Jacareacanga gets around 309 mm of rain over 28 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 90% and peaks near 95% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	84	84	84	85	85	86	86	86	87	87	88	88	89	89	90	90	91	92	92	92	93	93	94	94	94	94	95	95	95	95	95

	Rain chance (%)
1	84
2	84
3	84
4	85
5	85
6	86
7	86
8	86
9	87
10	87
11	88
12	88
13	89
14	89
15	90
16	90
17	91
18	92
19	92
20	92
21	93
22	93
23	94
24	94
25	94
26	94
27	95
28	95
29	95
30	95
31	95

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Oppressive (%)	43	43	43	43	43	44	44	45	46	47	48	50	51	53	54	56	57	58	59	60	61	62	63	64	65	65	66	66	67	67	67
Miserable (%)	57	57	57	57	57	56	56	55	54	53	52	50	49	47	46	44	43	42	41	40	39	38	37	36	35	35	34	34	33	33	33

	Oppressive (%)	Miserable (%)
1	43	57
2	43	57
3	43	57
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	46	54
10	47	53
11	48	52
12	50	50
13	51	49
14	53	47
15	54	46
16	56	44
17	57	43
18	58	42
19	59	41
20	60	40
21	61	39
22	62	38
23	63	37
24	64	36
25	65	35
26	65	35
27	66	34
28	66	34
29	67	33
30	67	33
31	67	33

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	calm
22	5	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm
31	4	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 18 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 6 minutes over December. Sunrise moves from 6:31 AM to 6:43 AM, and sunset from 6:51 PM to 7:05 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.4
Sunrise (AM)	6:31	6:31	6:31	6:32	6:32	6:32	6:33	6:33	6:33	6:34	6:34	6:35	6:35	6:36	6:36	6:36	6:37	6:37	6:38	6:38	6:39	6:39	6:40	6:40	6:41	6:41	6:42	6:42	6:43	6:43	6:43
Sunset (PM)	6:51	6:51	6:52	6:52	6:53	6:53	6:54	6:54	6:55	6:55	6:56	6:56	6:56	6:57	6:57	6:58	6:58	6:59	6:59	7:00	7:00	7:01	7:01	7:02	7:02	7:03	7:03	7:04	7:04	7:04	7:05

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	6:31	6:51
2	12.3	6:31	6:51
3	12.3	6:31	6:52
4	12.3	6:32	6:52
5	12.3	6:32	6:53
6	12.3	6:32	6:53
7	12.3	6:33	6:54
8	12.3	6:33	6:54
9	12.4	6:33	6:55
10	12.4	6:34	6:55
11	12.4	6:34	6:56
12	12.4	6:35	6:56
13	12.4	6:35	6:56
14	12.4	6:36	6:57
15	12.4	6:36	6:57
16	12.4	6:36	6:58
17	12.4	6:37	6:58
18	12.4	6:37	6:59
19	12.4	6:38	6:59
20	12.4	6:38	7:00
21	12.4	6:39	7:00
22	12.4	6:39	7:01
23	12.4	6:40	7:01
24	12.4	6:40	7:02
25	12.4	6:41	7:02
26	12.4	6:41	7:03
27	12.4	6:42	7:03
28	12.4	6:42	7:04
29	12.4	6:43	7:04
30	12.4	6:43	7:04
31	12.4	6:43	7:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.7 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 5.55 kWh/m² in October across the year — December's 4.7 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.0	5.0	4.9	4.9	4.9	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.8	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	5.0	Bright
3	4.9	Bright
4	4.9	Bright
5	4.9	Bright
6	4.9	Bright
7	4.9	Bright
8	4.9	Bright
9	4.8	Bright
10	4.8	Bright
11	4.8	Bright
12	4.8	Bright
13	4.8	Bright
14	4.7	Bright
15	4.7	Bright
16	4.7	Bright
17	4.7	Bright
18	4.6	Bright
19	4.6	Bright
20	4.6	Bright
21	4.6	Bright
22	4.6	Bright
23	4.5	Bright
24	4.5	Bright
25	4.5	Bright
26	4.5	Bright
27	4.5	Bright
28	4.5	Bright
29	4.5	Bright
30	4.5	Bright
31	4.5	Bright

Planning a trip in December

Hazard calendar for Jacareacanga

In seasonPeak

In December, Jacareacanga sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Jacareacanga's rainy season runs October–May, 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 Jacareacanga?

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

2.7

Sightseeing

7th-best month of the year

3.9

Beach & pool

8th-best month of the year

December is a weaker month for outdoor sightseeing in Jacareacanga.

What to pack for Jacareacanga in December

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

In December, Jacareacanga sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

UV index in Jacareacanga 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 Jacareacanga peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 16 at about 9 (very high).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	14	15	14	11	10	10	10	9	10	11	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	Very high	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	14	Extreme
Mar	15	Extreme
Apr	14	Extreme
May	11	Extreme
Jun	10	Very high
Jul	10	Very high
Aug	10	Very high
Sep	9	Very high
Oct	10	Very high
Nov	11	Extreme
Dec	12	Extreme

Air quality in Jacareacanga 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 Jacareacanga is worst in August — around 123 µg/m³ PM2.5 (unhealthy), about 14.8× the cleanest month (June, 8 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	12	12	12	12	9	8	16	123	54	24	22	16
Level	Moderate	Good	Moderate	Good	Good	Good	Moderate	Unhealthy	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	12	Moderate
Feb	12	Good
Mar	12	Moderate
Apr	12	Good
May	9	Good
Jun	8	Good
Jul	16	Moderate
Aug	123	Unhealthy
Sep	54	Poor
Oct	24	Moderate
Nov	22	Moderate
Dec	16	Moderate

Location & terrain

Where is Jacareacanga?

Jacareacanga sits at 6.2°S, 57.8°W, 72 m above sea level, in Brazil. The nearest listed city is Apuí, 260 km away.

Topography around Jacareacanga

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

Within 3 km, the terrain around Jacareacanga has only modest variations in elevation — a maximum elevation change of 100 m around an average of 85 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 169 m; within 80 km, significant variations in elevation — a maximum elevation change of 319 m.

The land around Jacareacanga is covered by trees (48%) and grassland (28%) within 3 km, trees (81%) within 16 km, and trees (96%) within 80 km.

3 km

100 m

trees 48%

16 km

169 m

trees 81%

80 km

319 m

trees 96%

treesgrasslandartificial surfaceswater

← November Jacareacanga year-round climate January →Best places to visit in December

December weather nearby: Apuí 260 km · Trairão 271 km · Novo Progresso 281 km · Borba 288 km · Itaituba 292 km · Nova Olinda do Norte 299 km · Novo Aripuanã 315 km · Maués 316 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

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 Jacareacanga (-6.2222°, -57.7528°, elevation 72 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).

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23
31	30	23

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	11	89
10	11	89
11	11	89
12	11	89
13	11	89
14	11	89
15	10	90
16	10	90
17	10	90
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	8	92
27	8	92
28	7	93
29	7	93
30	8	92
31	8	92

	Rain chance (%)
1	84
2	84
3	84
4	85
5	85
6	86
7	86
8	86
9	87
10	87
11	88
12	88
13	89
14	89
15	90
16	90
17	91
18	92
19	92
20	92
21	93
22	93
23	94
24	94
25	94
26	94
27	95
28	95
29	95
30	95
31	95

	Oppressive (%)	Miserable (%)
1	43	57
2	43	57
3	43	57
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	46	54
10	47	53
11	48	52
12	50	50
13	51	49
14	53	47
15	54	46
16	56	44
17	57	43
18	58	42
19	59	41
20	60	40
21	61	39
22	62	38
23	63	37
24	64	36
25	65	35
26	65	35
27	66	34
28	66	34
29	67	33
30	67	33
31	67	33

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23
31	30	23

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	11	89
10	11	89
11	11	89
12	11	89
13	11	89
14	11	89
15	10	90
16	10	90
17	10	90
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	8	92
27	8	92
28	7	93
29	7	93
30	8	92
31	8	92

	Rain chance (%)
1	84
2	84
3	84
4	85
5	85
6	86
7	86
8	86
9	87
10	87
11	88
12	88
13	89
14	89
15	90
16	90
17	91
18	92
19	92
20	92
21	93
22	93
23	94
24	94
25	94
26	94
27	95
28	95
29	95
30	95
31	95

	Oppressive (%)	Miserable (%)
1	43	57
2	43	57
3	43	57
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	46	54
10	47	53
11	48	52
12	50	50
13	51	49
14	53	47
15	54	46
16	56	44
17	57	43
18	58	42
19	59	41
20	60	40
21	61	39
22	62	38
23	63	37
24	64	36
25	65	35
26	65	35
27	66	34
28	66	34
29	67	33
30	67	33
31	67	33

	Avg high (°C)	Avg low (°C)
1	31	24
2	31	24
3	31	24
4	31	24
5	31	24
6	31	24
7	31	24
8	31	24
9	31	24
10	30	24
11	30	24
12	30	24
13	30	24
14	30	24
15	30	23
16	30	23
17	30	23
18	30	23
19	30	23
20	30	23
21	30	23
22	30	23
23	30	23
24	30	23
25	30	23
26	30	23
27	30	23
28	30	23
29	30	23
30	30	23
31	30	23

	Clearer (%)	Cloudier (%)
1	11	89
2	11	89
3	11	89
4	11	89
5	11	89
6	11	89
7	11	89
8	11	89
9	11	89
10	11	89
11	11	89
12	11	89
13	11	89
14	11	89
15	10	90
16	10	90
17	10	90
18	9	91
19	9	91
20	9	91
21	9	91
22	9	91
23	9	91
24	9	91
25	9	91
26	8	92
27	8	92
28	7	93
29	7	93
30	8	92
31	8	92

	Rain chance (%)
1	84
2	84
3	84
4	85
5	85
6	86
7	86
8	86
9	87
10	87
11	88
12	88
13	89
14	89
15	90
16	90
17	91
18	92
19	92
20	92
21	93
22	93
23	94
24	94
25	94
26	94
27	95
28	95
29	95
30	95
31	95

	Oppressive (%)	Miserable (%)
1	43	57
2	43	57
3	43	57
4	43	57
5	43	57
6	44	56
7	44	56
8	45	55
9	46	54
10	47	53
11	48	52
12	50	50
13	51	49
14	53	47
15	54	46
16	56	44
17	57	43
18	58	42
19	59	41
20	60	40
21	61	39
22	62	38
23	63	37
24	64	36
25	65	35
26	65	35
27	66	34
28	66	34
29	67	33
30	67	33
31	67	33