Santa Inês weather in January

In January, Santa Inês sees average daytime highs of 32°C and overnight lows near 24°C, with 253 mm of rain across 25.4 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 4% 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 Santa Inês's 9th-clearest and 8th-windiest month. For the whole year in context, see Santa Inês's year-round climate.

Daytime high
32°
7th warmest
Overnight low
24°
8th coldest
Rainfall
253 mm
25.4 wet days
Daylight
12 h 12 min
6:05 AM – 6:17 PM
Cloud cover
80%
9th clearest
Wind
6 km/h
8th windiest
Solar energy
4.72 kWh/m²
Travel score
2.6
out of 10

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 Santa Inês 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 34°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How January really feels in Santa Inês

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.

Santa Inês 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°25325.412.22.6
Feb31° / 24°27625.712.12.5
Mar31° / 24°34129.5122.4
Apr31° / 24°31027.911.92.5
May31° / 24°16321.511.83.2
Jun31° / 23°5511.711.84.2
Jul32° / 23°326.411.84.4
Aug34° / 23°122.811.93.8
Sep35° / 24°122.2123.2
Oct35° / 25°194.112.12.9
Nov34° / 25°49812.22.9
Dec33° / 24°12015.412.22.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12278
22278
32179
42080
51981
61882
71783
81684
91684
101585
111486
121486
131387
141288
151288
161288
171288
181288
191288
201387
211486
221486
231486
241486
251486
261486
271486
281486
291486
301486
311486

Chance of precipitation in January

Any precipitation

Santa Inês gets around 253 mm of rain over 25.4 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 82% and peaks near 88% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
170
271
372
473
574
675
776
877
978
1079
1180
1281
1382
1483
1584
1684
1785
1885
1985
2085
2186
2286
2386
2487
2587
2687
2787
2887
2987
3088
3188

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 63% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
126929
226929
326929
426929
526830
616930
716930
816831
916831
1016831
1116732
1216732
1316633
1416534
1516534
1616435
1716336
1816237
1916138
2006238
2106139
2206040
2306040
2405941
2505842
2605743
2705743
2805644
2905545
3005446
3105347

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 5:58 AM to 6:10 AM, and sunset from 6:11 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:586:11
212.25:596:11
312.25:596:12
412.26:006:12
512.26:006:13
612.26:016:13
712.26:016:13
812.26:026:14
912.26:026:14
1012.26:036:15
1112.26:036:15
1212.26:036:15
1312.26:046:16
1412.26:046:16
1512.26:056:16
1612.26:056:17
1712.26:056:17
1812.26:066:17
1912.26:066:17
2012.26:076:18
2112.26:076:18
2212.26:076:18
2312.26:086:18
2412.26:086:19
2512.26:086:19
2612.26:096:19
2712.26:096:19
2812.26:096:19
2912.26:106:19
3012.26:106:20
3112.26:106:20

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.72 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 6.11 kWh/m² in October across the year — January's 4.72 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in January

Hazard calendar for Santa Inês

In seasonPeak

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

Santa Inês's monsoon runs January–May, 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 Santa Inês?

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

2.6
Sightseeing
9th-best month of the year
4.1
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Santa Inês.

What to pack for Santa Inês in January

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

In January, Santa Inês sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Santa Inês 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 Santa Inês peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Santa Inês 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 Santa Inês is worst in November — around 25 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1724 µg/m³Jul 167 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar15Moderate
Apr13Moderate
May10Good
Jun8Good
Jul7Good
Aug8Good
Sep10Good
Oct16Moderate
Nov25Moderate
Dec19Moderate
Location & terrain

Where is Santa Inês?

Santa Inês sits at 3.7°S, 45.4°W, 31 m above sea level, in Brazil. The nearest listed city is Pindaré-Mirim, 8.0 km away.

Topography around Santa Inês

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

Within 3 km, the terrain around Santa Inês has only modest variations in elevation — a maximum elevation change of 32 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, significant variations in elevation — a maximum elevation change of 286 m.

The land around Santa Inês is covered by grassland (43%), artificial surfaces (32%) and trees (23%) within 3 km, grassland (56%) and trees (32%) within 16 km, and grassland (60%) and trees (34%) within 80 km.

3 km
32 m
16 km
52 m
80 km
286 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Pindaré-Mirim 8.0 km · Monção 24 km · Bom Jardim 29 km · Pio XII 31 km · Santa Luzia 45 km · Penalva 47 km · Alto Alegre do Pindaré 52 km · Zé Doca 53 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 Santa Inês (-3.6667°, -45.38°, elevation 31 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).