Cumaru weather in December

In December, Cumaru sees average daytime highs of 31°C and overnight lows near 21°C, with 19 mm of rain across 7.2 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 33% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 24 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Cumaru's 4th-clearest and 6th-windiest month. For the whole year in context, see Cumaru's year-round climate.

Daytime high: 31°; 1st warmest
Overnight low: 21°; 8th coldest
Rainfall: 19 mm; 7.2 wet days
Daylight: 12 h 30 min; 5:05 AM – 5:33 PM
Cloud cover: 54%; 4th clearest
Wind: 12 km/h; 6th windiest
Solar energy: 6.02 kWh/m²
Travel score: 5.0; out of 10

← November Cumaru 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 31°C through the month.

A typical December day in Cumaru reaches about 31°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, December runs on par with 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	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31
Avg low (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22

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

How December really feels in Cumaru

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.

Cumaru weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 22°	42	11	12.4	4.6
Feb	31° / 22°	39	10.7	12.3	4.4
Mar	31° / 22°	51	13.2	12.1	4.4
Apr	30° / 22°	54	13.2	11.8	4.7
May	28° / 21°	58	12	11.6	5.6
Jun	27° / 20°	50	11.2	11.5	6.3
Jul	26° / 20°	37	10.2	11.6	6.6
Aug	27° / 19°	20	6.8	11.7	6.9
Sep	28° / 20°	15	5.8	12	6.7
Oct	30° / 20°	13	4.8	12.2	5.9
Nov	30° / 21°	13	4.2	12.4	5.5
Dec	31° / 21°	19	7.2	12.5	5.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 28% of December, with mostly cloudy or overcast conditions the remaining 39%.

	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 (%)	62	62	64	64	64	64	66	66	66	66	65	65	64	63	63	63	62	61	60	59	59	58	57	57	57	56	56	56	56	55	56
Cloudier (%)	38	38	36	36	36	36	34	34	34	34	35	35	36	37	37	37	38	39	40	41	41	42	43	43	43	44	44	44	44	45	44

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	64	36
4	64	36
5	64	36
6	64	36
7	66	34
8	66	34
9	66	34
10	66	34
11	65	35
12	65	35
13	64	36
14	63	37
15	63	37
16	63	37
17	62	38
18	61	39
19	60	40
20	59	41
21	59	41
22	58	42
23	57	43
24	57	43
25	57	43
26	56	44
27	56	44
28	56	44
29	56	44
30	55	45
31	56	44

Chance of precipitation in December

Any precipitation

Cumaru gets around 19 mm of rain over 7.2 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 23% and peaks near 28% 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 (%)	14	15	15	15	15	16	17	18	19	20	21	22	23	24	25	26	26	27	27	28	28	28	28	28	28	28	28	28	28	28	28

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

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 88% of days. Sticky, muggy-or-worse air turns up on roughly 94% 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
Humid (%)	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	6	6	6	6	6	7	7	7	7	7	7	7	7	7	7	6
Muggy (%)	91	91	91	91	91	91	91	92	92	92	91	91	91	90	90	89	88	88	87	87	85	85	84	84	84	83	83	83	83	83	84
Oppressive (%)	3	3	3	3	3	3	3	3	3	3	4	4	4	5	5	5	6	6	7	7	8	8	9	9	9	10	10	10	10	10	10

	Humid (%)	Muggy (%)	Oppressive (%)
1	6	91	3
2	6	91	3
3	6	91	3
4	6	91	3
5	6	91	3
6	6	91	3
7	6	91	3
8	5	92	3
9	5	92	3
10	5	92	3
11	5	91	4
12	5	91	4
13	5	91	4
14	5	90	5
15	5	90	5
16	6	89	5
17	6	88	6
18	6	88	6
19	6	87	7
20	6	87	7
21	7	85	8
22	7	85	8
23	7	84	9
24	7	84	9
25	7	84	9
26	7	83	10
27	7	83	10
28	7	83	10
29	7	83	10
30	7	83	10
31	6	84	10

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 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)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 24 min at the start of December to 12 h 30 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 5:00 AM to 5:12 AM, and sunset from 5:26 PM to 5:40 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)	12.4	12.4	12.4	12.4	12.4	12.4	12.4	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5	12.5
Sunrise (AM)	5:00	5:00	5:00	5:00	5:01	5:01	5:01	5:02	5:02	5:03	5:03	5:03	5:04	5:04	5:05	5:05	5:05	5:06	5:06	5:07	5:07	5:08	5:08	5:09	5:09	5:10	5:10	5:11	5:11	5:12	5:12
Sunset (PM)	5:26	5:26	5:26	5:27	5:27	5:28	5:28	5:29	5:29	5:30	5:30	5:31	5:31	5:32	5:32	5:33	5:33	5:34	5:34	5:35	5:35	5:36	5:36	5:37	5:37	5:38	5:38	5:38	5:39	5:39	5:40

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	5:00	5:26
2	12.4	5:00	5:26
3	12.4	5:00	5:26
4	12.4	5:00	5:27
5	12.4	5:01	5:27
6	12.4	5:01	5:28
7	12.4	5:01	5:28
8	12.5	5:02	5:29
9	12.5	5:02	5:29
10	12.5	5:03	5:30
11	12.5	5:03	5:30
12	12.5	5:03	5:31
13	12.5	5:04	5:31
14	12.5	5:04	5:32
15	12.5	5:05	5:32
16	12.5	5:05	5:33
17	12.5	5:05	5:33
18	12.5	5:06	5:34
19	12.5	5:06	5:34
20	12.5	5:07	5:35
21	12.5	5:07	5:35
22	12.5	5:08	5:36
23	12.5	5:08	5:36
24	12.5	5:09	5:37
25	12.5	5:09	5:37
26	12.5	5:10	5:38
27	12.5	5:10	5:38
28	12.5	5:11	5:38
29	12.5	5:11	5:39
30	12.5	5:12	5:39
31	12.5	5:12	5:40

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.02 kWh/m².

For context, solar energy here swings from a low near 3.98 kWh/m² to a high of 6.06 kWh/m² in November across the year — December's 6.02 kWh/m² sits near the top of that range.

	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)	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.0	6.0	6.0	6.0	6.0	6.0	6.0	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.9
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.1	Intense
2	6.1	Intense
3	6.1	Intense
4	6.1	Intense
5	6.1	Intense
6	6.1	Intense
7	6.1	Intense
8	6.1	Intense
9	6.1	Intense
10	6.1	Intense
11	6.1	Intense
12	6.1	Intense
13	6.0	Intense
14	6.0	Intense
15	6.0	Intense
16	6.0	Bright
17	6.0	Bright
18	6.0	Bright
19	6.0	Bright
20	5.9	Bright
21	5.9	Bright
22	5.9	Bright
23	5.9	Bright
24	5.9	Bright
25	5.9	Bright
26	5.9	Bright
27	5.9	Bright
28	5.9	Bright
29	5.9	Bright
30	5.9	Bright
31	5.9	Bright

Planning a trip in December

Is December a good time to visit Cumaru?

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

5.0

Sightseeing

8th-best month of the year

7.2

Beach & pool

4th-best month of the year

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

What to pack for Cumaru in December

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

In December, Cumaru sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Cumaru 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 Cumaru peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (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	12	12	12	12
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Very high	Extreme	Extreme	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	12	Extreme
Oct	12	Extreme
Nov	12	Extreme
Dec	12	Extreme

Location & terrain

Where is Cumaru?

Cumaru sits at 8.0°S, 35.7°W, 362 m above sea level, in Brazil. The nearest listed city is Passira, 13 km away.

Topography around Cumaru

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

Within 3 km, the terrain around Cumaru has significant variations in elevation — a maximum elevation change of 306 m around an average of 402 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 583 m; within 80 km, large variations in elevation — a maximum elevation change of 1,184 m.

The land around Cumaru is covered by grassland (80%) within 3 km, grassland (75%) within 16 km, and grassland (60%) within 80 km.

3 km

306 m

grassland 80%

16 km

583 m

grassland 75%

80 km

1,184 m

grassland 60%

treesshrubsgrasslandcroplandartificial surfaces

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

December weather nearby: Passira 13 km · Surubim 20 km · João Alfredo 21 km · Riacho das Almas 23 km · Gravatá 26 km · Bom Jardim 26 km · Bezerros 28 km · Orobó 31 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 Cumaru (-8.0061°, -35.6972°, elevation 362 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).

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	64	36
4	64	36
5	64	36
6	64	36
7	66	34
8	66	34
9	66	34
10	66	34
11	65	35
12	65	35
13	64	36
14	63	37
15	63	37
16	63	37
17	62	38
18	61	39
19	60	40
20	59	41
21	59	41
22	58	42
23	57	43
24	57	43
25	57	43
26	56	44
27	56	44
28	56	44
29	56	44
30	55	45
31	56	44

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

	Humid (%)	Muggy (%)	Oppressive (%)
1	6	91	3
2	6	91	3
3	6	91	3
4	6	91	3
5	6	91	3
6	6	91	3
7	6	91	3
8	5	92	3
9	5	92	3
10	5	92	3
11	5	91	4
12	5	91	4
13	5	91	4
14	5	90	5
15	5	90	5
16	6	89	5
17	6	88	6
18	6	88	6
19	6	87	7
20	6	87	7
21	7	85	8
22	7	85	8
23	7	84	9
24	7	84	9
25	7	84	9
26	7	83	10
27	7	83	10
28	7	83	10
29	7	83	10
30	7	83	10
31	6	84	10

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	64	36
4	64	36
5	64	36
6	64	36
7	66	34
8	66	34
9	66	34
10	66	34
11	65	35
12	65	35
13	64	36
14	63	37
15	63	37
16	63	37
17	62	38
18	61	39
19	60	40
20	59	41
21	59	41
22	58	42
23	57	43
24	57	43
25	57	43
26	56	44
27	56	44
28	56	44
29	56	44
30	55	45
31	56	44

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

	Humid (%)	Muggy (%)	Oppressive (%)
1	6	91	3
2	6	91	3
3	6	91	3
4	6	91	3
5	6	91	3
6	6	91	3
7	6	91	3
8	5	92	3
9	5	92	3
10	5	92	3
11	5	91	4
12	5	91	4
13	5	91	4
14	5	90	5
15	5	90	5
16	6	89	5
17	6	88	6
18	6	88	6
19	6	87	7
20	6	87	7
21	7	85	8
22	7	85	8
23	7	84	9
24	7	84	9
25	7	84	9
26	7	83	10
27	7	83	10
28	7	83	10
29	7	83	10
30	7	83	10
31	6	84	10

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

	Clearer (%)	Cloudier (%)
1	62	38
2	62	38
3	64	36
4	64	36
5	64	36
6	64	36
7	66	34
8	66	34
9	66	34
10	66	34
11	65	35
12	65	35
13	64	36
14	63	37
15	63	37
16	63	37
17	62	38
18	61	39
19	60	40
20	59	41
21	59	41
22	58	42
23	57	43
24	57	43
25	57	43
26	56	44
27	56	44
28	56	44
29	56	44
30	55	45
31	56	44

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

	Humid (%)	Muggy (%)	Oppressive (%)
1	6	91	3
2	6	91	3
3	6	91	3
4	6	91	3
5	6	91	3
6	6	91	3
7	6	91	3
8	5	92	3
9	5	92	3
10	5	92	3
11	5	91	4
12	5	91	4
13	5	91	4
14	5	90	5
15	5	90	5
16	6	89	5
17	6	88	6
18	6	88	6
19	6	87	7
20	6	87	7
21	7	85	8
22	7	85	8
23	7	84	9
24	7	84	9
25	7	84	9
26	7	83	10
27	7	83	10
28	7	83	10
29	7	83	10
30	7	83	10
31	6	84	10