Santana do Acaraú weather in January

In January, Santana do Acaraú sees average daytime highs of 32°C and overnight lows near 24°C, with 113 mm of rain across 17.6 wet days and about 12.2 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 17% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of January to 12 h 12 min by month's end. Set against the rest of the year, January is Santana do Acaraú's 9th-clearest and 8th-windiest month. For the whole year in context, see Santana do Acaraú's year-round climate.

Daytime high
32°
7th warmest
Overnight low
24°
9th coldest
Rainfall
113 mm
17.6 wet days
Daylight
12 h 12 min
5:45 AM – 5:56 PM
Cloud cover
70%
9th clearest
Wind
10 km/h
8th windiest
Solar energy
5.33 kWh/m²
Travel score
3.2
out of 10

Santana do Acaraú is 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 32°C through the month.

A typical January day in Santana do Acaraú reaches about 32°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 29°C and 35°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C warmer than February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How January really feels in Santana do Acaraú

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.

Santana do Acaraú weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°11317.612.23.2
Feb31° / 24°13920.712.13.1
Mar30° / 23°20125.8123.0
Apr30° / 23°20824.111.93.2
May31° / 23°9015.111.84.1
Jun31° / 23°25611.84.8
Jul32° / 23°142.811.84.8
Aug33° / 23°50.911.94.3
Sep34° / 24°20.3123.8
Oct35° / 24°40.912.13.5
Nov34° / 24°61.212.23.5
Dec34° / 24°27612.23.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34555
44456
54258
64159
74060
83961
93664
103664
113466
123466
133169
143070
153070
162971
172872
182872
192773
202773
212773
222971
232971
242971
252971
262971
272971
283070
293169
303268
313268

Chance of precipitation in January

Any precipitation

Santana do Acaraú gets around 113 mm of rain over 17.6 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 56% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
138
240
341
443
545
646
748
850
951
1053
1154
1256
1357
1458
1559
1660
1761
1861
1962
2062
2162
2263
2363
2463
2564
2664
2764
2864
2964
3064
3164

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
127730
226740
325750
424760
523770
622780
721790
820800
920800
1019810
1118820
1218820
1317830
1416840
1516840
1615850
1715850
1815850
1915850
2015850
2115850
2214860
2314860
2414860
2514851
2614851
2714851
2814851
2913861
3013861
3113861

Wind in January

Winds average 10 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

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

Days grow by about 0 minutes over January. Sunrise moves from 5:38 AM to 5:50 AM, and sunset from 5:50 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:385:50
212.25:395:50
312.25:395:51
412.25:405:51
512.25:405:52
612.25:405:52
712.25:415:52
812.25:415:53
912.25:425:53
1012.25:425:54
1112.25:435:54
1212.25:435:54
1312.25:445:55
1412.25:445:55
1512.25:445:55
1612.25:455:56
1712.25:455:56
1812.25:465:56
1912.25:465:56
2012.25:465:57
2112.25:475:57
2212.25:475:57
2312.25:475:57
2412.25:485:58
2512.25:485:58
2612.25:485:58
2712.25:495:58
2812.25:495:58
2912.25:495:58
3012.25:495:59
3112.25:505:59

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.33 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.78 kWh/m² in October across the year — January's 5.33 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Santana do Acaraú

In seasonPeak

In January, Santana do Acaraú sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Santana do Acaraú's monsoon runs January–April, when most of the year's rain falls.

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

Is January a good time to visit Santana do Acaraú?

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

3.2
Sightseeing
9th-best month of the year
5.2
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Santana do Acaraú.

What to pack for Santana do Acaraú in January

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

In January, Santana do Acaraú sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Santana do Acaraú 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 Santana do Acaraú peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Santana do Acaraú in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Santana do Acaraú is worst in December — around 17 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1017 µg/m³Jul 216 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr12Good
May10Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct10Good
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Santana do Acaraú?

Santana do Acaraú sits at 3.5°S, 40.2°W, 46 m above sea level, in Brazil. The nearest listed city is Massapê, 16 km away.

Topography around Santana do Acaraú

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

Within 3 km, the terrain around Santana do Acaraú has only modest variations in elevation — a maximum elevation change of 235 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 631 m; within 80 km, large variations in elevation — a maximum elevation change of 1,063 m.

The land around Santana do Acaraú is covered by shrubs (46%) and grassland (38%) within 3 km, shrubs (67%) and grassland (23%) within 16 km, and shrubs (48%), grassland (24%) and trees (21%) within 80 km.

3 km
235 m
16 km
631 m
80 km
1,063 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Massapê 16 km · Morrinhos 27 km · Meruoca 28 km · Sobral 29 km · Forquilha 38 km · Marco 38 km · Amontada 44 km · Bela Cruz 46 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 Santana do Acaraú (-3.4606°, -40.2122°, elevation 46 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).