Santo Antônio weather in January

In January, Santo Antônio sees average daytime highs of 31°C and overnight lows near 24°C, with 43 mm of rain across 11.7 wet days and about 12.3 hours of daylight. It is the 2nd-warmest and 6th-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 January, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of January to 12 h 18 min by month's end. Set against the rest of the year, January is Santo Antônio's 9th-clearest and 9th-windiest month. For the whole year in context, see Santo Antônio's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
24°
10th coldest
Rainfall
43 mm
11.7 wet days
Daylight
12 h 18 min
5:21 AM – 5:41 PM
Cloud cover
58%
9th clearest
Wind
13 km/h
9th windiest
Solar energy
5.92 kWh/m²
Travel score
4.1
out of 10

Santo Antônio is human settlement in Brazil.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical January day in Santo Antônio reaches about 31°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How January really feels in Santo Antônio

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Santo Antônio weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°4311.712.34.1
Feb31° / 24°5312.212.23.9
Mar31° / 24°7716.9123.7
Apr31° / 23°881611.94.0
May30° / 23°6212.511.74.8
Jun29° / 22°5411.611.65.4
Jul28° / 21°438.811.76.0
Aug29° / 21°164.811.86.2
Sep30° / 22°82.9126.0
Oct31° / 23°7212.15.5
Nov31° / 23°92.912.35.2
Dec32° / 24°186.812.44.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
35842
45842
55743
65743
75644
85545
95446
105446
115347
125248
135149
145050
154951
164951
174951
185050
195050
205050
215050
225248
235248
245149
255248
265347
275347
285446
295446
305545
315644

Chance of precipitation in January

Any precipitation

Santo Antônio gets around 43 mm of rain over 11.7 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
128
228
329
429
530
630
731
832
933
1034
1135
1237
1338
1440
1541
1642
1743
1843
1944
2044
2144
2244
2344
2444
2544
2643
2742
2841
2940
3040
3139

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
133670
232680
332680
431690
530700
630700
729710
828720
928720
1027730
1126740
1226740
1325750
1425750
1524760
1623770
1723770
1823770
1922780
2022780
2122780
2221790
2321790
2421790
2521790
2622780
2722780
2822780
2922771
3022771
3122771

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 h 24 min at the start of January to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over January. Sunrise moves from 5:14 AM to 5:27 AM, and sunset from 5:36 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:145:36
212.45:155:36
312.45:155:37
412.45:165:37
512.45:165:37
612.45:175:38
712.45:175:38
812.35:185:39
912.35:185:39
1012.35:195:39
1112.35:195:40
1212.35:205:40
1312.35:205:40
1412.35:205:41
1512.35:215:41
1612.35:215:41
1712.35:225:41
1812.35:225:42
1912.35:235:42
2012.35:235:42
2112.35:235:42
2212.35:245:42
2312.35:245:43
2412.35:255:43
2512.35:255:43
2612.35:255:43
2712.35:265:43
2812.35:265:43
2912.35:265:43
3012.35:275:43
3112.35:275:44

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.92 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 6.26 kWh/m² in November across the year — January's 5.92 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in January

Is January a good time to visit Santo Antônio?

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

4.1
Sightseeing
9th-best month of the year
6.3
Beach & pool
9th-best month of the year

January is a reasonable time to visit Santo Antônio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santo Antônio in January

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

In January, Santo Antônio sees daytime highs around 31°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Santo Antônio in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 62 km away) is warmest in March at about 29°C and coldest in August near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Santo Antônio in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Santo Antônio peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 highExtremeMar 12UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Santo Antônio?

Santo Antônio sits at 6.3°S, 35.5°W, 93 m above sea level, in Brazil. The nearest listed city is Nova Cruz, 19 km away.

Topography around Santo Antônio

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

Within 3 km, the terrain around Santo Antônio has only modest variations in elevation — a maximum elevation change of 44 m around an average of 89 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 149 m; within 80 km, large variations in elevation — a maximum elevation change of 686 m.

The land around Santo Antônio is covered by grassland (88%) within 3 km, grassland (87%) within 16 km, and grassland (45%) and shrubs (26%) within 80 km.

3 km
44 m
16 km
149 m
80 km
686 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Nova Cruz 19 km · Goianinha 30 km · Monte Alegre 31 km · São José de Mipibu 37 km · Nísia Floresta 39 km · Canguaretama 39 km · Araruna 40 km · Belém 43 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 Santo Antônio (-6.3106°, -35.4789°, elevation 93 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).