Santana do Araguaia weather in May

In May, Santana do Araguaia sees average daytime highs of 32°C and overnight lows near 22°C, with 80 mm of rain across 10.9 wet days and about 11.6 hours of daylight. It is the 6th-warmest and 8th-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 30% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of May to 11 h 30 min by month's end. Set against the rest of the year, May is Santana do Araguaia's 5th-clearest and 5th-windiest month. For the whole year in context, see Santana do Araguaia's year-round climate.

Daytime high
32°
6th warmest
Overnight low
22°
4th coldest
Rainfall
80 mm
10.9 wet days
Daylight
11 h 36 min
6:30 AM – 6:05 PM
Cloud cover
60%
5th clearest
Wind
5 km/h
5th windiest
Solar energy
4.78 kWh/m²
Travel score
4.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Santana do Araguaia reaches about 32°C in the afternoon and slips back to 22°C overnight — a 9°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, May runs about 1°C warmer than April and about 1°C cooler than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53122
63122
73122
83122
93122
103122
113122
123122
133222
143222
153222
163222
173222
183222
193222
203222
213222
223222
233222
243222
253222
263222
273222
283222
293222
303222
313222

How May really feels in Santana do Araguaia

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

Santana do Araguaia weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°31628.412.52.8
Feb30° / 22°27826.112.32.8
Mar30° / 23°29328.612.12.8
Apr31° / 23°21122.611.83.2
May32° / 22°8010.911.64.1
Jun33° / 22°51.111.54.6
Jul34° / 21°10.211.54.3
Aug35° / 22°40.811.73.3
Sep35° / 23°364.811.93.0
Oct32° / 23°13016.512.23.1
Nov31° / 23°2262412.42.9
Dec30° / 23°27426.912.52.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23664
33763
43763
53763
63961
74060
84060
94357
104357
114456
124456
134654
144753
154852
164852
174951
185050
195248
205347
215347
225545
235545
245743
255842
265941
276040
286238
296337
306436
316535

Chance of precipitation in May

Any precipitation

Santana do Araguaia gets around 80 mm of rain over 10.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 55% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
155
254
352
451
549
648
746
845
943
1042
1140
1239
1337
1436
1535
1634
1733
1832
1931
2030
2129
2228
2326
2425
2524
2623
2722
2821
2920
3018
3117

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1028018
2028018
3028117
4038017
5038116
6038116
7048115
8048115
9058114
10058213
11068113
12078112
13088111
14098011
150108010
16011809
17013789
18014788
19016768
20017767
21019747
22021736
23023725
24025705
25128674
26130654
27132643
28134623
29237592
30239572
31341551

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 6 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
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 42 min at the start of May to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over May. Sunrise moves from 6:28 AM to 6:34 AM, and sunset from 6:09 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:286:09
211.76:286:08
311.76:296:08
411.76:296:08
511.66:296:08
611.66:296:07
711.66:296:07
811.66:296:07
911.66:296:06
1011.66:296:06
1111.66:306:06
1211.66:306:06
1311.66:306:05
1411.66:306:05
1511.66:306:05
1611.66:306:05
1711.66:316:05
1811.66:316:05
1911.66:316:04
2011.66:316:04
2111.56:316:04
2211.56:326:04
2311.56:326:04
2411.56:326:04
2511.56:326:04
2611.56:336:04
2711.56:336:04
2811.56:336:04
2911.56:336:04
3011.56:346:04
3111.56:346:04

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.78 kWh/m².

For context, solar energy here swings from a low near 4.68 kWh/m² to a high of 5.99 kWh/m² in September across the year — May's 4.78 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.9Bright
Planning a trip in May

Hazard calendar for Santana do Araguaia

In seasonPeak

None of Santana do Araguaia's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Santana 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 May a good time to visit Santana do Araguaia?

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

4.1
Sightseeing
3rd-best month of the year
6.4
Beach & pool
4th-best month of the year

May is a reasonable time to visit Santana do Araguaia for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santana do Araguaia in May

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

In May, Santana do Araguaia sees daytime highs around 32°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Santana do Araguaia in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (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 Araguaia peaks around February 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 15Jun 21UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct10Extreme
Nov12Extreme
Dec11Extreme

Air quality in Santana do Araguaia in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Santana do Araguaia is worst in September — around 128 µg/m³ PM2.5 (unhealthy), about 11.2× the cleanest month (February, 11 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 16117 µg/m³Feb 1212 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar13Moderate
Apr12Moderate
May14Moderate
Jun16Moderate
Jul15Moderate
Aug44Poor
Sep128Unhealthy
Oct34Moderate
Nov19Moderate
Dec16Moderate
Location & terrain

Where is Santana do Araguaia?

Santana do Araguaia sits at 9.3°S, 50.4°W, 178 m above sea level, in Brazil. The nearest listed city is Santa Maria das Barreiras, 87 km away.

Topography around Santana do Araguaia

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

Within 3 km, the terrain around Santana do Araguaia has only modest variations in elevation — a maximum elevation change of 34 m around an average of 174 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 75 m; within 80 km, significant variations in elevation — a maximum elevation change of 574 m.

The land around Santana do Araguaia is covered by grassland (54%) within 3 km, grassland (61%) and trees (24%) within 16 km, and grassland (47%) and trees (45%) within 80 km.

3 km
34 m
16 km
75 m
80 km
574 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Santa Maria das Barreiras 87 km · Vila Rica 113 km · Redenção 149 km · Conceição do Araguaia 168 km · Lagoa da Confusão 181 km · Paraíso do Tocantins 188 km · Confresa 197 km · Guaraí 210 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 Araguaia (-9.335°, -50.35°, elevation 178 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).