São João weather in December

In December, São João sees average daytime highs of 29°C and overnight lows near 20°C, with 28 mm of rain across 8.4 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels muggy.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is São João's 3rd-clearest and 3rd-windiest month. For the whole year in context, see São João's year-round climate.

Daytime high: 29°; 1st warmest
Overnight low: 20°; 8th coldest
Rainfall: 28 mm; 8.4 wet days
Daylight: 12 h 30 min; 5:06 AM – 5:37 PM
Cloud cover: 56%; 3rd clearest
Wind: 12 km/h; 3rd windiest
Solar energy: 6.19 kWh/m²
Travel score: 5.9; out of 10

São João is human settlement in Brazil.

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

← November São João 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 29°C through the month.

A typical December day in São João reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	28	28	28	28	28	28	28	28	29	29	29	29
Avg low (°C)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20

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

São João weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 20°	46	13.7	12.5	5.3
Feb	29° / 20°	47	13	12.3	5.1
Mar	29° / 21°	57	15.8	12.1	5.0
Apr	27° / 20°	68	16.7	11.8	5.3
May	26° / 20°	83	19.3	11.6	5.3
Jun	24° / 19°	99	21	11.5	5.1
Jul	24° / 18°	96	22.2	11.5	5.0
Aug	24° / 18°	73	20	11.7	5.3
Sep	25° / 18°	52	15.7	11.9	6.0
Oct	27° / 19°	34	10.8	12.2	6.5
Nov	28° / 19°	27	7.6	12.4	6.5
Dec	29° / 20°	28	8.4	12.5	5.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 27% of December, with mostly cloudy or overcast conditions the remaining 42%.

	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 (%)	57	57	59	59	59	60	60	60	61	61	61	61	61	61	60	61	60	60	59	58	57	57	56	56	56	56	55	55	55	55	54
Cloudier (%)	43	43	41	41	41	40	40	40	39	39	39	39	39	39	40	39	40	40	41	42	43	43	44	44	44	44	45	45	45	45	46

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	60	40
9	61	39
10	61	39
11	61	39
12	61	39
13	61	39
14	61	39
15	60	40
16	61	39
17	60	40
18	60	40
19	59	41
20	58	42
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	56	44
27	55	45
28	55	45
29	55	45
30	55	45
31	54	46

Chance of precipitation in December

Any precipitation

São João gets around 28 mm of rain over 8.4 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 28% and peaks near 33% 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 (%)	23	23	23	22	22	22	22	23	23	24	24	25	26	27	28	29	29	30	30	31	31	31	31	32	32	32	32	32	32	32	33

	Rain chance (%)
1	23
2	23
3	23
4	22
5	22
6	22
7	22
8	23
9	23
10	24
11	24
12	25
13	26
14	27
15	28
16	29
17	29
18	30
19	30
20	31
21	31
22	31
23	31
24	32
25	32
26	32
27	32
28	32
29	32
30	32
31	33

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 90% 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 (%)	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9	9
Muggy (%)	89	89	89	89	88	88	88	88	89	89	89	89	89	89	89	89	89	89	89	89	89	89	88	88	88	88	88	89	89	89	89
Oppressive (%)	0	0	0	0	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2

	Humid (%)	Muggy (%)	Oppressive (%)
1	11	89	0
2	11	89	0
3	11	89	0
4	11	89	0
5	11	88	1
6	11	88	1
7	11	88	1
8	11	88	1
9	10	89	1
10	10	89	1
11	10	89	1
12	10	89	1
13	10	89	1
14	10	89	1
15	10	89	1
16	10	89	1
17	10	89	1
18	10	89	1
19	10	89	1
20	10	89	1
21	10	89	1
22	10	89	1
23	10	88	2
24	10	88	2
25	10	88	2
26	10	88	2
27	10	88	2
28	9	89	2
29	9	89	2
30	9	89	2
31	9	89	2

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	calm	calm	calm	calm	calm	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	calm
19	12	calm
20	12	calm
21	12	calm
22	12	calm
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 30 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 0 minutes over December. Sunrise moves from 5:01 AM to 5:13 AM, and sunset from 5:30 PM to 5:44 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)	12.5	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	12.5	12.5	12.5	12.5	12.5	12.5	12.5
Sunrise (AM)	5:01	5:01	5:01	5:02	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	5:08	5:09	5:09	5:10	5:10	5:11	5:11	5:12	5:12	5:13	5:13
Sunset (PM)	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	5:39	5:39	5:39	5:40	5:40	5:41	5:41	5:42	5:42	5:43	5:43	5:44	5:44

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:01	5:30
2	12.5	5:01	5:30
3	12.5	5:01	5:31
4	12.5	5:02	5:31
5	12.5	5:02	5:32
6	12.5	5:02	5:32
7	12.5	5:03	5:33
8	12.5	5:03	5:33
9	12.5	5:03	5:34
10	12.5	5:04	5:34
11	12.5	5:04	5:35
12	12.5	5:05	5:35
13	12.5	5:05	5:36
14	12.5	5:05	5:36
15	12.5	5:06	5:37
16	12.5	5:06	5:37
17	12.5	5:07	5:38
18	12.5	5:07	5:38
19	12.5	5:08	5:39
20	12.5	5:08	5:39
21	12.5	5:08	5:39
22	12.5	5:09	5:40
23	12.5	5:09	5:40
24	12.5	5:10	5:41
25	12.5	5:10	5:41
26	12.5	5:11	5:42
27	12.5	5:11	5:42
28	12.5	5:12	5:43
29	12.5	5:12	5:43
30	12.5	5:13	5:44
31	12.5	5:13	5:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.19 kWh/m².

For context, solar energy here swings from a low near 3.79 kWh/m² to a high of 6.23 kWh/m² in November across the year — December's 6.19 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)	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.2	6.2	6.2	6.2	6.2	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1	6.1
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.3	Intense
2	6.3	Intense
3	6.3	Intense
4	6.3	Intense
5	6.3	Intense
6	6.3	Intense
7	6.3	Intense
8	6.3	Intense
9	6.3	Intense
10	6.3	Intense
11	6.3	Intense
12	6.2	Intense
13	6.2	Intense
14	6.2	Intense
15	6.2	Intense
16	6.2	Intense
17	6.1	Intense
18	6.1	Intense
19	6.1	Intense
20	6.1	Intense
21	6.1	Intense
22	6.1	Intense
23	6.1	Intense
24	6.1	Intense
25	6.1	Intense
26	6.1	Intense
27	6.1	Intense
28	6.1	Intense
29	6.1	Intense
30	6.1	Intense
31	6.1	Intense

Planning a trip in December

Is December a good time to visit São João?

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

5.9

Sightseeing

4th-best month of the year

7.2

Beach & pool

2nd-best month of the year

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

What to pack for São João in December

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

In December, São João sees daytime highs around 29°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

UV index in São João 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 São João peaks around March 12 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	15	15	14	11	10	10	10	13	13	13	13
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

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

Location & terrain

Where is São João?

São João sits at 8.9°S, 36.4°W, 712 m above sea level, in Brazil. The nearest listed city is Garanhuns, 15 km away.

Topography around São João

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

Within 3 km, the terrain around São João has significant variations in elevation — a maximum elevation change of 255 m around an average of 729 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 488 m; within 80 km, large variations in elevation — a maximum elevation change of 1,143 m.

The land around São João is covered by grassland (41%) and cropland (34%) within 3 km, grassland (61%) and cropland (22%) within 16 km, and grassland (67%) within 80 km.

3 km

255 m

grassland 41%

16 km

488 m

grassland 61%

80 km

1,143 m

grassland 67%

treesshrubsgrasslandcroplandartificial surfaces

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

December weather nearby: Garanhuns 15 km · Jupi 19 km · Canhotinho 19 km · Lajedo 24 km · Correntes 28 km · Caetés 30 km · Capoeiras 33 km · São José da Laje 37 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 São João (-8.8756°, -36.3667°, elevation 712 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	20
3	29	20
4	29	20
5	29	20
6	29	20
7	29	20
8	29	20
9	29	20
10	29	20
11	29	20
12	29	20
13	29	20
14	29	20
15	29	20
16	29	20
17	29	20
18	29	20
19	29	20
20	28	20
21	28	20
22	28	20
23	28	20
24	28	20
25	28	20
26	28	20
27	28	20
28	29	20
29	29	20
30	29	20
31	29	20

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	60	40
9	61	39
10	61	39
11	61	39
12	61	39
13	61	39
14	61	39
15	60	40
16	61	39
17	60	40
18	60	40
19	59	41
20	58	42
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	56	44
27	55	45
28	55	45
29	55	45
30	55	45
31	54	46

	Rain chance (%)
1	23
2	23
3	23
4	22
5	22
6	22
7	22
8	23
9	23
10	24
11	24
12	25
13	26
14	27
15	28
16	29
17	29
18	30
19	30
20	31
21	31
22	31
23	31
24	32
25	32
26	32
27	32
28	32
29	32
30	32
31	33

	Humid (%)	Muggy (%)	Oppressive (%)
1	11	89	0
2	11	89	0
3	11	89	0
4	11	89	0
5	11	88	1
6	11	88	1
7	11	88	1
8	11	88	1
9	10	89	1
10	10	89	1
11	10	89	1
12	10	89	1
13	10	89	1
14	10	89	1
15	10	89	1
16	10	89	1
17	10	89	1
18	10	89	1
19	10	89	1
20	10	89	1
21	10	89	1
22	10	89	1
23	10	88	2
24	10	88	2
25	10	88	2
26	10	88	2
27	10	88	2
28	9	89	2
29	9	89	2
30	9	89	2
31	9	89	2

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

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	60	40
9	61	39
10	61	39
11	61	39
12	61	39
13	61	39
14	61	39
15	60	40
16	61	39
17	60	40
18	60	40
19	59	41
20	58	42
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	56	44
27	55	45
28	55	45
29	55	45
30	55	45
31	54	46

	Rain chance (%)
1	23
2	23
3	23
4	22
5	22
6	22
7	22
8	23
9	23
10	24
11	24
12	25
13	26
14	27
15	28
16	29
17	29
18	30
19	30
20	31
21	31
22	31
23	31
24	32
25	32
26	32
27	32
28	32
29	32
30	32
31	33

	Humid (%)	Muggy (%)	Oppressive (%)
1	11	89	0
2	11	89	0
3	11	89	0
4	11	89	0
5	11	88	1
6	11	88	1
7	11	88	1
8	11	88	1
9	10	89	1
10	10	89	1
11	10	89	1
12	10	89	1
13	10	89	1
14	10	89	1
15	10	89	1
16	10	89	1
17	10	89	1
18	10	89	1
19	10	89	1
20	10	89	1
21	10	89	1
22	10	89	1
23	10	88	2
24	10	88	2
25	10	88	2
26	10	88	2
27	10	88	2
28	9	89	2
29	9	89	2
30	9	89	2
31	9	89	2

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

	Clearer (%)	Cloudier (%)
1	57	43
2	57	43
3	59	41
4	59	41
5	59	41
6	60	40
7	60	40
8	60	40
9	61	39
10	61	39
11	61	39
12	61	39
13	61	39
14	61	39
15	60	40
16	61	39
17	60	40
18	60	40
19	59	41
20	58	42
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	56	44
27	55	45
28	55	45
29	55	45
30	55	45
31	54	46

	Rain chance (%)
1	23
2	23
3	23
4	22
5	22
6	22
7	22
8	23
9	23
10	24
11	24
12	25
13	26
14	27
15	28
16	29
17	29
18	30
19	30
20	31
21	31
22	31
23	31
24	32
25	32
26	32
27	32
28	32
29	32
30	32
31	33

	Humid (%)	Muggy (%)	Oppressive (%)
1	11	89	0
2	11	89	0
3	11	89	0
4	11	89	0
5	11	88	1
6	11	88	1
7	11	88	1
8	11	88	1
9	10	89	1
10	10	89	1
11	10	89	1
12	10	89	1
13	10	89	1
14	10	89	1
15	10	89	1
16	10	89	1
17	10	89	1
18	10	89	1
19	10	89	1
20	10	89	1
21	10	89	1
22	10	89	1
23	10	88	2
24	10	88	2
25	10	88	2
26	10	88	2
27	10	88	2
28	9	89	2
29	9	89	2
30	9	89	2
31	9	89	2