São Geraldo do Araguaia weather in January

In January, São Geraldo do Araguaia sees average daytime highs of 30°C and overnight lows near 23°C, with 269 mm of rain across 28.6 wet days and about 12.3 hours of daylight. It is the 11th-warmest and 3rd-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 2% 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 São Geraldo do Araguaia's 10th-clearest and 9th-windiest month. For the whole year in context, see São Geraldo do Araguaia's year-round climate.

Daytime high
30°
11th warmest
Overnight low
23°
5th coldest
Rainfall
269 mm
28.6 wet days
Daylight
12 h 18 min
6:13 AM – 6:34 PM
Cloud cover
84%
10th clearest
Wind
5 km/h
9th windiest
Solar energy
4.59 kWh/m²
Travel score
2.8
out of 10

São Geraldo do Araguaia 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 30°C through the month.

A typical January day in São Geraldo do Araguaia reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°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)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How January really feels in São Geraldo do Araguaia

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.

São Geraldo do Araguaia weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°26928.612.32.8
Feb30° / 23°27725.812.22.7
Mar30° / 23°28328.4122.7
Apr31° / 23°20023.811.93.0
May31° / 23°10114.111.73.9
Jun33° / 22°132.611.64.5
Jul33° / 22°5111.74.2
Aug34° / 23°5111.83.6
Sep34° / 24°234123.5
Oct33° / 24°7912.312.13.5
Nov31° / 23°16520.112.33.2
Dec30° / 23°21324.912.43.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21387
31387
41387
51387
61189
71189
81189
91189
101189
111090
121090
13991
14991
15991
16892
17892
18892
19991
20991
21991
22991
23991
24991
251090
261090
271090
281090
291189
301189
311189

Chance of precipitation in January

Any precipitation

São Geraldo do Araguaia gets around 269 mm of rain over 28.6 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 92% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
389
489
589
690
790
890
990
1091
1191
1291
1392
1492
1592
1693
1793
1893
1993
2093
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094
3194

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1928
2928
3928
4928
5928
6928
7928
8928
9928
10928
11928
12937
13937
14937
15937
16937
17937
18937
19937
20928
21928
22928
23928
24919
25919
26919
27919
289010
299010
309010
318911

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 6:06 AM to 6:19 AM, and sunset from 6:28 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:066:28
212.46:076:29
312.46:076:29
412.46:086:30
512.46:086:30
612.46:096:30
712.46:096:31
812.46:106:31
912.46:106:31
1012.36:116:32
1112.36:116:32
1212.36:126:32
1312.36:126:33
1412.36:136:33
1512.36:136:33
1612.36:136:34
1712.36:146:34
1812.36:146:34
1912.36:156:34
2012.36:156:34
2112.36:166:35
2212.36:166:35
2312.36:166:35
2412.36:176:35
2512.36:176:35
2612.36:176:36
2712.36:186:36
2812.36:186:36
2912.36:196:36
3012.36:196:36
3112.36:196:36

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.59 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.21 kWh/m² in September across the year — January's 4.59 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in January

Hazard calendar for São Geraldo do Araguaia

In seasonPeak

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

São Geraldo do Araguaia's monsoon runs November–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 São Geraldo do Araguaia?

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

2.8
Sightseeing
10th-best month of the year
3.8
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in São Geraldo do Araguaia.

What to pack for São Geraldo do Araguaia in January

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

In January, São Geraldo do Araguaia sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

UV index in São Geraldo do Araguaia 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 São Geraldo do Araguaia peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 12UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov11Extreme
Dec10Extreme

Air quality in São Geraldo do Araguaia 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 São Geraldo do Araguaia is worst in September — around 42 µg/m³ PM2.5 (poor), about 6.2× the cleanest month (July, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateModerateSep 1839 µg/m³Jul 107 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Good
Mar12Good
Apr12Good
May9Good
Jun8Good
Jul7Good
Aug16Moderate
Sep42Poor
Oct26Moderate
Nov24Moderate
Dec17Moderate
Location & terrain

Where is São Geraldo do Araguaia?

São Geraldo do Araguaia sits at 6.4°S, 48.6°W, 131 m above sea level, in Brazil. The nearest listed city is Eldorado dos Carajás, 94 km away.

Topography around São Geraldo do Araguaia

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

Within 3 km, the terrain around São Geraldo do Araguaia has only modest variations in elevation — a maximum elevation change of 97 m around an average of 133 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 450 m; within 80 km, significant variations in elevation — a maximum elevation change of 492 m.

The land around São Geraldo do Araguaia is covered by grassland (38%) and water (30%) within 3 km, grassland (57%) and trees (36%) within 16 km, and grassland (64%) and trees (34%) within 80 km.

3 km
97 m
16 km
450 m
80 km
492 m
treesgrasslandartificial surfaceswater
January weather nearby: Eldorado dos Carajás 94 km · Araguaína 96 km · Araguatins 97 km · São Domingos do Araguaia 98 km · Curionópolis 120 km · Estreito 124 km · Tocantinópolis 126 km · Porto Franco 128 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 São Geraldo do Araguaia (-6.4006°, -48.555°, elevation 131 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).