Três Marias weather in September

In September, Três Marias sees average daytime highs of 31°C and overnight lows near 19°C, with 22 mm of rain across 4 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 58% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Três Marias's 3rd-clearest and 1st-windiest month. For the whole year in context, see Três Marias's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
19°
5th coldest
Rainfall
22 mm
4 wet days
Daylight
11 h 54 min
6:58 AM – 6:52 PM
Cloud cover
37%
3rd clearest
Wind
8 km/h
1st windiest
Solar energy
6.09 kWh/m²
Travel score
5.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Três Marias reaches about 31°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13018
23018
33018
43019
53019
63019
73019
83019
93019
103019
113019
123119
133119
143119
153119
163120
173120
183120
193120
203120
213120
223120
233120
243120
253120
263120
273120
283120
293121
303121

Três Marias weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°17617.6134.3
Feb30° / 22°12213.412.64.4
Mar29° / 22°13815.812.14.6
Apr29° / 21°497.611.66.0
May28° / 19°152.711.27.6
Jun27° / 17°30.710.98.3
Jul27° / 17°10.3118.4
Aug29° / 17°30.611.47.4
Sep31° / 19°22411.95.7
Oct31° / 21°69912.44.6
Nov29° / 21°17417.512.94.3
Dec29° / 22°23119.813.14.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38119
48119
58119
68020
78020
87921
97921
107822
117723
127624
137525
147525
157327
167228
177129
187129
196931
206832
216733
226733
236535
246436
256337
266337
276238
286238
296238
306139

Chance of precipitation in September

Any precipitation

Três Marias gets around 22 mm of rain over 4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
16
26
36
46
56
66
76
87
97
107
118
129
139
1410
1511
1612
1713
1814
1916
2017
2118
2219
2320
2421
2522
2623
2724
2824
2925
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 11% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
135441920
235442020
334442020
434442030
534442030
633442030
733432130
832432140
931432240
1031422340
1130412450
1229412560
1328402660
1427392770
1526382880
1625372990
17243630100
18233531110
19223432120
20213333130
21203234140
22193135150
23183035161
24172936181
25162836191
26152837201
27142737211
28132737231
29122637241
30122637251

Wind in September

Winds average 8 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over September. Sunrise moves from 7:12 AM to 6:46 AM, and sunset from 6:50 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:126:50
211.77:116:50
311.77:106:50
411.77:096:50
511.77:086:50
611.77:076:51
711.77:066:51
811.87:056:51
911.87:056:51
1011.87:046:51
1111.87:036:51
1211.87:026:52
1311.87:016:52
1411.97:006:52
1511.96:596:52
1611.96:586:52
1711.96:576:52
1811.96:576:53
1912.06:566:53
2012.06:556:53
2112.06:546:53
2212.06:536:53
2312.06:526:53
2412.06:516:54
2512.16:506:54
2612.16:496:54
2712.16:496:54
2812.16:486:54
2912.16:476:54
3012.16:466:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.09 kWh/m².

For context, solar energy here swings from a low near 4.31 kWh/m² to a high of 6.24 kWh/m² in October across the year — September's 6.09 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
46.0Bright
56.0Bright
66.0Intense
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Três Marias

In seasonPeak

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

Três Marias'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 September a good time to visit Três Marias?

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

5.7
Sightseeing
6th-best month of the year
8.0
Beach & pool
5th-best month of the year

September is a reasonable time to visit Três Marias for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Três Marias in September

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

In September, Três Marias sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

UV index in Três Marias in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Três Marias peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Três Marias?

Três Marias sits at 18.2°S, 45.2°W, 547 m above sea level, in Brazil. The nearest listed city is Corinto, 85 km away.

Topography around Três Marias

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

Within 3 km, the terrain around Três Marias has only modest variations in elevation — a maximum elevation change of 243 m around an average of 572 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 326 m; within 80 km, significant variations in elevation — a maximum elevation change of 527 m.

The land around Três Marias is covered by grassland (27%) and artificial surfaces (21%) within 3 km, shrubs (32%), grassland (27%) and trees (22%) within 16 km, and grassland (38%), trees (29%) and shrubs (20%) within 80 km.

3 km
243 m
16 km
326 m
80 km
527 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Corinto 85 km · Várzea da Palma 86 km · Buritizeiro 100 km · Pirapora 101 km · Curvelo 105 km · Abaeté 108 km · João Pinheiro 111 km · Pompéu 118 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 Três Marias (-18.2064°, -45.2417°, elevation 547 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).