Barra de São Francisco weather in December

In December, Barra de São Francisco sees average daytime highs of 30°C and overnight lows near 21°C, with 190 mm of rain across 16.7 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 1st-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 12% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Barra de São Francisco's 11th-clearest and 7th-windiest month. For the whole year in context, see Barra de São Francisco's year-round climate.

Daytime high: 30°; 4th warmest
Overnight low: 21°; 9th coldest
Rainfall: 190 mm; 16.7 wet days
Daylight: 13 h 06 min; 6:06 AM – 7:13 PM
Cloud cover: 76%; 11th clearest
Wind: 8 km/h; 7th windiest
Solar energy: 5.42 kWh/m²
Travel score: 4.2; out of 10

Barra de São Francisco is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← November Barra de São Francisco 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 Barra de São Francisco reaches about 30°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 26°C and 33°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than 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)	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	20	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21

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

How December really feels in Barra de São Francisco

Once humidity and wind are folded in, December averages 15 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.

Barra de São Francisco weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 21°	134	12.9	13	4.3
Feb	31° / 21°	82	9.9	12.6	4.3
Mar	30° / 21°	104	13.4	12.1	4.3
Apr	29° / 20°	60	10.6	11.6	5.3
May	27° / 18°	26	6.3	11.1	6.8
Jun	26° / 17°	15	4.2	10.9	7.5
Jul	26° / 16°	14	4.7	11	7.5
Aug	27° / 16°	13	4.6	11.4	7.4
Sep	28° / 18°	23	5.3	11.9	6.7
Oct	29° / 19°	77	10	12.4	5.4
Nov	29° / 20°	173	15.8	12.9	4.6
Dec	30° / 21°	190	16.7	13.1	4.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to open up as the month goes on.

	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 (%)	18	18	18	18	18	19	19	18	20	21	21	23	23	24	24	26	26	28	29	29	29	30	30	30	31	32	32	31	31	31	31
Cloudier (%)	82	82	82	82	82	81	81	82	80	79	79	77	77	76	76	74	74	72	71	71	71	70	70	70	69	68	68	69	69	69	69

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	18	82
5	18	82
6	19	81
7	19	81
8	18	82
9	20	80
10	21	79
11	21	79
12	23	77
13	23	77
14	24	76
15	24	76
16	26	74
17	26	74
18	28	72
19	29	71
20	29	71
21	29	71
22	30	70
23	30	70
24	30	70
25	31	69
26	32	68
27	32	68
28	31	69
29	31	69
30	31	69
31	31	69

Chance of precipitation in December

Any precipitation

Barra de São Francisco gets around 190 mm of rain over 16.7 wet days in December, the wettest month. 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 60% on the wettest days. The odds ease 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 (%)	60	60	60	60	60	60	60	59	59	58	57	56	55	54	53	52	52	51	50	50	49	48	48	47	47	47	46	46	46	46	45

	Rain chance (%)
1	60
2	60
3	60
4	60
5	60
6	60
7	60
8	59
9	59
10	58
11	57
12	56
13	55
14	54
15	53
16	52
17	52
18	51
19	50
20	50
21	49
22	48
23	48
24	47
25	47
26	47
27	46
28	46
29	46
30	46
31	45

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 96% 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 (%)	8	7	7	6	6	5	5	5	4	4	4	4	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	3	3	3
Muggy (%)	65	65	63	63	61	61	60	59	59	58	57	57	57	57	57	57	57	59	59	59	59	60	60	60	60	60	60	60	59	59	59
Oppressive (%)	27	28	30	31	33	34	35	36	37	38	39	39	40	40	40	40	40	39	39	39	39	38	38	38	38	38	38	38	38	38	38

	Humid (%)	Muggy (%)	Oppressive (%)
1	8	65	27
2	7	65	28
3	7	63	30
4	6	63	31
5	6	61	33
6	5	61	34
7	5	60	35
8	5	59	36
9	4	59	37
10	4	58	38
11	4	57	39
12	4	57	39
13	3	57	40
14	3	57	40
15	3	57	40
16	3	57	40
17	3	57	40
18	2	59	39
19	2	59	39
20	2	59	39
21	2	59	39
22	2	60	38
23	2	60	38
24	2	60	38
25	2	60	38
26	2	60	38
27	2	60	38
28	2	60	38
29	3	59	38
30	3	59	38
31	3	59	38

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 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)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
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	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	8	calm
14	8	calm
15	8	calm
16	8	calm
17	8	calm
18	8	calm
19	8	calm
20	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	8	calm
30	8	calm
31	8	calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 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 6:02 AM to 6:13 AM, and sunset from 7:05 PM to 7:20 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)	13.0	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1	13.1
Sunrise (AM)	6:02	6:02	6:02	6:02	6:03	6:03	6:03	6:03	6:04	6:04	6:04	6:05	6:05	6:05	6:06	6:06	6:06	6:07	6:07	6:08	6:08	6:09	6:09	6:10	6:10	6:11	6:11	6:12	6:12	6:13	6:13
Sunset (PM)	7:05	7:05	7:06	7:07	7:07	7:08	7:08	7:09	7:09	7:10	7:11	7:11	7:12	7:12	7:13	7:13	7:14	7:14	7:15	7:15	7:16	7:16	7:17	7:17	7:18	7:18	7:19	7:19	7:19	7:20	7:20

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.0	6:02	7:05
2	13.1	6:02	7:05
3	13.1	6:02	7:06
4	13.1	6:02	7:07
5	13.1	6:03	7:07
6	13.1	6:03	7:08
7	13.1	6:03	7:08
8	13.1	6:03	7:09
9	13.1	6:04	7:09
10	13.1	6:04	7:10
11	13.1	6:04	7:11
12	13.1	6:05	7:11
13	13.1	6:05	7:12
14	13.1	6:05	7:12
15	13.1	6:06	7:13
16	13.1	6:06	7:13
17	13.1	6:06	7:14
18	13.1	6:07	7:14
19	13.1	6:07	7:15
20	13.1	6:08	7:15
21	13.1	6:08	7:16
22	13.1	6:09	7:16
23	13.1	6:09	7:17
24	13.1	6:10	7:17
25	13.1	6:10	7:18
26	13.1	6:11	7:18
27	13.1	6:11	7:19
28	13.1	6:12	7:19
29	13.1	6:12	7:19
30	13.1	6:13	7:20
31	13.1	6:13	7:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.42 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.02 kWh/m² in February across the year — December's 5.42 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)	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.2	5.2	5.2	5.3	5.3	5.3	5.4	5.4	5.5	5.5	5.5	5.6	5.6	5.6	5.7	5.7	5.7	5.7	5.8	5.8	5.8	5.8	5.8	5.8
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	5.0	Bright
4	5.0	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.2	Bright
9	5.2	Bright
10	5.2	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.4	Bright
15	5.4	Bright
16	5.5	Bright
17	5.5	Bright
18	5.5	Bright
19	5.6	Bright
20	5.6	Bright
21	5.6	Bright
22	5.7	Bright
23	5.7	Bright
24	5.7	Bright
25	5.7	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright
31	5.8	Bright

Planning a trip in December

Hazard calendar for Barra de São Francisco

In seasonPeak

In December, Barra de São Francisco sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Barra de São Francisco's monsoon runs November–January, 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 Barra de São Francisco?

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

4.2

Sightseeing

12th-best month of the year

5.7

Beach & pool

11th-best month of the year

December is a reasonable time to visit Barra de São Francisco for sightseeing.

What to pack for Barra de São Francisco in December

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

In December, Barra de São Francisco sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Barra de São Francisco in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barra de São Francisco peaks around February 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (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	15	13	10	8	7	7	9	11	12	14	13
Level	Extreme	Extreme	Extreme	Extreme	Very high	High	Very high	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	15	Extreme
Mar	13	Extreme
Apr	10	Extreme
May	8	Very high
Jun	7	High
Jul	7	Very high
Aug	9	Very high
Sep	11	Extreme
Oct	12	Extreme
Nov	14	Extreme
Dec	13	Extreme

Location & terrain

Where is Barra de São Francisco?

Barra de São Francisco sits at 18.8°S, 40.9°W, 197 m above sea level, in Brazil. The nearest listed city is Mantena, 10 km away.

Topography around Barra de São Francisco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barra de São Francisco.

Within 3 km, the terrain around Barra de São Francisco has significant variations in elevation — a maximum elevation change of 335 m around an average of 251 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 732 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,584 m.

The land around Barra de São Francisco is covered by grassland (57%) and trees (32%) within 3 km, grassland (69%) and trees (29%) within 16 km, and grassland (67%) and trees (33%) within 80 km.

3 km

335 m

grassland 57%

16 km

732 m

grassland 69%

80 km

1,584 m

grassland 67%

treesgrasslandartificial surfacesbare terrain

← November Barra de São Francisco year-round climate January →Best places to visit in December

December weather nearby: Mantena 10 km · Ecoporanga 43 km · São Gabriel da Palha 47 km · Nova Venécia 52 km · Pancas 52 km · Resplendor 74 km · Conselheiro Pena 77 km · Rio Bananal 82 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 Barra de São Francisco (-18.755°, -40.8908°, elevation 197 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	29	20
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	30	21
14	30	21
15	30	21
16	30	21
17	30	21
18	30	21
19	30	21
20	30	21
21	30	21
22	30	21
23	30	21
24	30	21
25	30	21
26	30	21
27	30	21
28	30	21
29	30	21
30	30	21
31	30	21

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	18	82
5	18	82
6	19	81
7	19	81
8	18	82
9	20	80
10	21	79
11	21	79
12	23	77
13	23	77
14	24	76
15	24	76
16	26	74
17	26	74
18	28	72
19	29	71
20	29	71
21	29	71
22	30	70
23	30	70
24	30	70
25	31	69
26	32	68
27	32	68
28	31	69
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	60
2	60
3	60
4	60
5	60
6	60
7	60
8	59
9	59
10	58
11	57
12	56
13	55
14	54
15	53
16	52
17	52
18	51
19	50
20	50
21	49
22	48
23	48
24	47
25	47
26	47
27	46
28	46
29	46
30	46
31	45

	Humid (%)	Muggy (%)	Oppressive (%)
1	8	65	27
2	7	65	28
3	7	63	30
4	6	63	31
5	6	61	33
6	5	61	34
7	5	60	35
8	5	59	36
9	4	59	37
10	4	58	38
11	4	57	39
12	4	57	39
13	3	57	40
14	3	57	40
15	3	57	40
16	3	57	40
17	3	57	40
18	2	59	39
19	2	59	39
20	2	59	39
21	2	59	39
22	2	60	38
23	2	60	38
24	2	60	38
25	2	60	38
26	2	60	38
27	2	60	38
28	2	60	38
29	3	59	38
30	3	59	38
31	3	59	38

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

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	18	82
5	18	82
6	19	81
7	19	81
8	18	82
9	20	80
10	21	79
11	21	79
12	23	77
13	23	77
14	24	76
15	24	76
16	26	74
17	26	74
18	28	72
19	29	71
20	29	71
21	29	71
22	30	70
23	30	70
24	30	70
25	31	69
26	32	68
27	32	68
28	31	69
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	60
2	60
3	60
4	60
5	60
6	60
7	60
8	59
9	59
10	58
11	57
12	56
13	55
14	54
15	53
16	52
17	52
18	51
19	50
20	50
21	49
22	48
23	48
24	47
25	47
26	47
27	46
28	46
29	46
30	46
31	45

	Humid (%)	Muggy (%)	Oppressive (%)
1	8	65	27
2	7	65	28
3	7	63	30
4	6	63	31
5	6	61	33
6	5	61	34
7	5	60	35
8	5	59	36
9	4	59	37
10	4	58	38
11	4	57	39
12	4	57	39
13	3	57	40
14	3	57	40
15	3	57	40
16	3	57	40
17	3	57	40
18	2	59	39
19	2	59	39
20	2	59	39
21	2	59	39
22	2	60	38
23	2	60	38
24	2	60	38
25	2	60	38
26	2	60	38
27	2	60	38
28	2	60	38
29	3	59	38
30	3	59	38
31	3	59	38

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

	Clearer (%)	Cloudier (%)
1	18	82
2	18	82
3	18	82
4	18	82
5	18	82
6	19	81
7	19	81
8	18	82
9	20	80
10	21	79
11	21	79
12	23	77
13	23	77
14	24	76
15	24	76
16	26	74
17	26	74
18	28	72
19	29	71
20	29	71
21	29	71
22	30	70
23	30	70
24	30	70
25	31	69
26	32	68
27	32	68
28	31	69
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	60
2	60
3	60
4	60
5	60
6	60
7	60
8	59
9	59
10	58
11	57
12	56
13	55
14	54
15	53
16	52
17	52
18	51
19	50
20	50
21	49
22	48
23	48
24	47
25	47
26	47
27	46
28	46
29	46
30	46
31	45

	Humid (%)	Muggy (%)	Oppressive (%)
1	8	65	27
2	7	65	28
3	7	63	30
4	6	63	31
5	6	61	33
6	5	61	34
7	5	60	35
8	5	59	36
9	4	59	37
10	4	58	38
11	4	57	39
12	4	57	39
13	3	57	40
14	3	57	40
15	3	57	40
16	3	57	40
17	3	57	40
18	2	59	39
19	2	59	39
20	2	59	39
21	2	59	39
22	2	60	38
23	2	60	38
24	2	60	38
25	2	60	38
26	2	60	38
27	2	60	38
28	2	60	38
29	3	59	38
30	3	59	38
31	3	59	38