Riachão weather in July

In July, Riachão sees average daytime highs of 33°C and overnight lows near 22°C, with 1 mm of rain across 0.2 wet days and about 11.6 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 77% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 11 h 36 min at the start of July to 11 h 42 min by month's end. Set against the rest of the year, July is Riachão's 2nd-clearest and 1st-windiest month. For the whole year in context, see Riachão's year-round climate.

Daytime high
33°
4th warmest
Overnight low
22°
3rd coldest
Rainfall
1 mm
0.2 wet days
Daylight
11 h 36 min
6:24 AM – 6:00 PM
Cloud cover
26%
2nd clearest
Wind
12 km/h
1st windiest
Solar energy
5.74 kWh/m²
Travel score
4.8
out of 10

Riachão is settlement in Brazil.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical July day in Riachão reaches about 33°C in the afternoon and slips back to 22°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°C. Set against its neighbours, July runs on par with June and about 1°C cooler than August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33222
43222
53222
63222
73222
83222
93222
103322
113322
123322
133322
143322
153322
163322
173322
183322
193322
203322
213322
223322
233322
243322
253322
263321
273321
283321
293321
303321
313321

How July really feels in Riachão

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

Riachão weather by month

How July compares with the rest of the year at a glance. July is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°30827.212.43.0
Feb30° / 22°26824.512.23.0
Mar30° / 22°27226.7123.0
Apr31° / 22°14918.411.83.7
May31° / 22°568.611.74.4
Jun32° / 22°40.611.65.0
Jul33° / 22°10.211.64.8
Aug34° / 22°20.411.84.0
Sep35° / 23°162.7123.2
Oct33° / 23°869.912.23.4
Nov31° / 22°18518.312.33.5
Dec30° / 22°22723.512.43.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 10%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38812
48812
58812
68812
78812
88812
98911
108911
118911
129010
139010
149010
159010
169010
179010
189010
199010
20919
21919
22919
23919
24928
25928
26928
27928
28928
29928
30928
31928

Chance of precipitation in July

Any precipitation

Riachão gets around 1 mm of rain over 0.2 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 1% and peaks near 1% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
181
191
201
211
221
231
241
251
261
271
280
290
300
310

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
122957111
223056111
323057101
423156101
523255101
623354101
723552101
82365291
93375190
103394990
113414880
123424680
133444580
143454470
154474270
164484170
174504060
185503960
195533750
206533650
216553540
227553440
238563330
248573230
259583030
2610582930
2710592830
2811592730
2911592730
3012592630
3112602530

Wind in July

Winds average 12 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 11 h 36 min at the start of July to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over July. Sunrise moves from 6:22 AM to 6:22 AM, and sunset from 5:57 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:225:57
211.66:235:57
311.66:235:58
411.66:235:58
511.66:235:58
611.66:235:58
711.66:235:58
811.66:235:59
911.66:235:59
1011.66:245:59
1111.66:245:59
1211.66:246:00
1311.66:246:00
1411.66:246:00
1511.66:246:00
1611.66:246:00
1711.66:246:01
1811.66:246:01
1911.66:246:01
2011.66:246:01
2111.66:246:01
2211.66:246:01
2311.66:246:02
2411.66:236:02
2511.66:236:02
2611.66:236:02
2711.76:236:02
2811.76:236:02
2911.76:236:02
3011.76:236:03
3111.76:226:03

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.74 kWh/m².

For context, solar energy here swings from a low near 4.88 kWh/m² to a high of 6.55 kWh/m² in September across the year — July's 5.74 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
266.0Bright
276.0Bright
286.0Intense
296.0Intense
306.0Intense
316.1Intense
Planning a trip in July

Hazard calendar for Riachão

In seasonPeak

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

Riachão'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 July a good time to visit Riachão?

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

4.8
Sightseeing
2nd-best month of the year
8.2
Beach & pool
1st-best month of the year

July is a reasonable time to visit Riachão for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Riachão in July

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

In July, Riachão sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Riachão in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Riachão peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 highExtremeFeb 21UV 15Jun 22UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Air quality in Riachão in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Riachão is worst in September — around 30 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (June, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateSep 2029 µg/m³Jun 186 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar11Good
Apr11Good
May7Good
Jun6Good
Jul7Good
Aug15Moderate
Sep30Moderate
Oct26Moderate
Nov17Moderate
Dec14Moderate
Location & terrain

Where is Riachão?

Riachão sits at 7.4°S, 46.6°W, 385 m above sea level, in Brazil. The nearest listed city is Balsas, 67 km away.

Topography around Riachão

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

Within 3 km, the terrain around Riachão has only modest variations in elevation — a maximum elevation change of 80 m around an average of 378 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 374 m; within 80 km, significant variations in elevation — a maximum elevation change of 475 m.

The land around Riachão is covered by grassland (47%), trees (25%) and shrubs (20%) within 3 km, grassland (45%), trees (33%) and shrubs (21%) within 16 km, and trees (36%), grassland (36%) and shrubs (20%) within 80 km.

3 km
80 m
16 km
374 m
80 km
475 m
treesshrubsgrasslandcroplandartificial surfaces
July weather nearby: Balsas 67 km · Carolina 93 km · Formosa da Serra Negra 112 km · Estreito 128 km · São Raimundo das Mangabeiras 131 km · Porto Franco 143 km · Tocantinópolis 145 km · Sítio Novo 165 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 Riachão (-7.3619°, -46.6172°, elevation 385 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).