Mariana weather in July

In July, Mariana sees average daytime highs of 23°C and overnight lows near 12°C, with 11 mm of rain across 2.9 wet days and about 10.9 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 46% of the time in July, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of July to 11 hours by month's end. Set against the rest of the year, July is Mariana's 2nd-clearest and 6th-windiest month. For the whole year in context, see Mariana's year-round climate.

Daytime high
23°
11th warmest
Overnight low
12°
1st coldest
Rainfall
11 mm
2.9 wet days
Daylight
10 h 54 min
7:33 AM – 6:26 PM
Cloud cover
45%
2nd clearest
Wind
7 km/h
6th windiest
Solar energy
3.88 kWh/m²
Travel score
8.1
out of 10

Mariana is human 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 23°C through the month.

A typical July day in Mariana reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, July runs on par with June and about 1°C cooler than August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12212
22212
32212
42212
52212
62212
72212
82212
92212
102212
112212
122212
132212
142212
152212
162212
172212
182212
192312
202312
212312
222312
232312
242312
252312
262312
272312
282312
292312
302312
312312

Mariana weather by month

How July compares with the rest of the year at a glance. July is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°2942013.14.9
Feb27° / 18°18515.612.75.3
Mar26° / 18°22719.712.15.1
Apr25° / 16°9913.111.56.3
May23° / 14°488117.1
Jun23° / 12°183.310.87.9
Jul23° / 12°112.910.98.1
Aug24° / 12°24411.38.1
Sep25° / 14°839.411.97.0
Oct25° / 16°13915.312.55.9
Nov25° / 17°28321.8134.7
Dec26° / 18°34024.213.24.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56337
66337
76337
86436
96436
106436
116337
126337
136337
146238
156238
166238
176238
186238
196337
206337
216337
226436
236436
246436
256535
266535
276535
286634
296634
306634
316634

Chance of precipitation in July

Any precipitation

Mariana gets around 11 mm of rain over 2.9 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 9% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
59
69
79
89
99
109
119
129
139
149
159
169
179
189
199
209
219
229
239
249
2510
2610
2710
2810
2910
3010
3110

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
158411
259401
360391
461381
562371
662371
764360
865350
965350
1066340
1167330
1267330
1368320
1468320
1568320
1668320
1768320
1868320
1968320
2068320
2168320
2269310
2369310
2470300
2570300
2669301
2770291
2870291
2970291
3071281
3170282

Wind in July

Winds average 7 km/h in July.

Across July, daily wind ranges from about 7 km/h on the calmest days to 8 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
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 48 min at the start of July to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over July. Sunrise moves from 7:34 AM to 7:28 AM, and sunset from 6:20 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:346:20
210.87:346:21
310.87:346:21
410.87:346:21
510.87:346:22
610.87:346:22
710.87:346:22
810.87:346:23
910.87:346:23
1010.87:346:23
1110.87:346:24
1210.87:346:24
1310.87:336:24
1410.97:336:25
1510.97:336:25
1610.97:336:26
1710.97:336:26
1810.97:336:26
1910.97:326:27
2010.97:326:27
2110.97:326:27
2210.97:326:28
2310.97:316:28
2411.07:316:29
2511.07:316:29
2611.07:306:29
2711.07:306:30
2811.07:306:30
2911.07:296:30
3011.07:296:31
3111.07:286:31

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.88 kWh/m².

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 5.95 kWh/m² in February across the year — July's 3.88 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
224.0Moderate
234.0Moderate
244.0Bright
254.0Bright
264.0Bright
274.1Bright
284.1Bright
294.1Bright
304.2Bright
314.2Bright
Planning a trip in July

Hazard calendar for Mariana

In seasonPeak

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

Mariana's monsoon runs November–March, 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 Mariana?

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

8.1
Sightseeing
1st-best month of the year
6.0
Beach & pool
3rd-best month of the year

July is one of the better times to visit Mariana for general sightseeing.

What to pack for Mariana in July

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

In July, Mariana sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes.

light clothes

UV index in Mariana in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mariana peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeFeb 10UV 15Jun 18UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep10Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Mariana 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 Mariana is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (January, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1624 µg/m³Jan 1411 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar13Moderate
Apr15Moderate
May18Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep26Moderate
Oct17Moderate
Nov12Moderate
Dec12Good
Location & terrain

Where is Mariana?

Mariana sits at 20.4°S, 43.4°W, 707 m above sea level, in Brazil. The nearest listed city is Ouro Preto, 9.0 km away.

Topography around Mariana

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

Within 3 km, the terrain around Mariana has significant variations in elevation — a maximum elevation change of 599 m around an average of 817 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,187 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,801 m.

The land around Mariana is covered by trees (54%) and grassland (29%) within 3 km, trees (72%) and grassland (25%) within 16 km, and trees (51%) and grassland (45%) within 80 km.

3 km
599 m
16 km
1,187 m
80 km
1,801 m
treesgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Ouro Preto 9.0 km · Ouro Branco 33 km · Piranga 36 km · Itabirito 42 km · Santa Bárbara 47 km · Congonhas 48 km · Barão de Cocais 49 km · Alvinópolis 49 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 Mariana (-20.3778°, -43.4161°, elevation 707 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).