Januária weather in September

In September, Januária sees average daytime highs of 33°C and overnight lows near 20°C, with 7 mm of rain across 1.3 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 9th-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 63% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Januária's 3rd-clearest and 1st-windiest month. For the whole year in context, see Januária's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
20°
5th coldest
Rainfall
7 mm
1.3 wet days
Daylight
11 h 54 min
6:54 AM – 6:49 PM
Cloud cover
34%
3rd clearest
Wind
11 km/h
1st windiest
Solar energy
6.36 kWh/m²
Travel score
4.3
out of 10

Januária is human settlement in Brazil.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Januária reaches about 33°C in the afternoon and slips back to 20°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 36°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13219
23219
33219
43219
53320
63320
73320
83320
93320
103320
113320
123320
133320
143320
153320
163320
173321
183321
193321
203421
213421
223421
233421
243421
253421
263421
273421
283421
293422
303422

How September really feels in Januária

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Januária weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°12712.212.84.2
Feb31° / 22°829.412.54.3
Mar31° / 22°1081112.14.4
Apr31° / 21°34511.75.1
May30° / 20°81.811.35.8
Jun30° / 18°10.211.16.6
Jul30° / 18°0011.26.8
Aug31° / 18°10.211.55.9
Sep33° / 20°71.311.94.3
Oct34° / 22°566.512.43.5
Nov31° / 22°15814.712.73.8
Dec31° / 22°1631512.94.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28218
38218
48218
58119
68119
78119
88119
98119
108119
118119
128218
138119
148020
158020
168020
177921
187921
197822
207822
217624
227624
237426
247327
257228
267129
277030
287030
296931
306931

Chance of precipitation in September

Any precipitation

Januária gets around 7 mm of rain over 1.3 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 5% and peaks near 10% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
51
61
72
82
92
102
112
122
132
143
153
164
174
185
195
206
216
227
237
247
258
268
279
289
2910
3010

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1593470
2603370
3603370
4603370
5603370
6603370
7603370
8593470
9583480
10583480
11573580
12563581
13543691
14543691
155137102
165038102
174838113
184638123
194439134
204239154
214139165
223939175
233739196
243539206
253439217
263238227
273138238
283037248
292937259
302936269

Wind in September

Winds average 11 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 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 24 minutes over September. Sunrise moves from 7:06 AM to 6:43 AM, and sunset from 6:48 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:066:48
211.77:066:48
311.77:056:48
411.77:046:48
511.87:036:48
611.87:026:48
711.87:026:49
811.87:016:49
911.87:006:49
1011.86:596:49
1111.86:586:49
1211.96:586:49
1311.96:576:49
1411.96:566:49
1511.96:556:49
1611.96:546:49
1711.96:546:49
1811.96:536:49
1912.06:526:49
2012.06:516:50
2112.06:506:50
2212.06:496:50
2312.06:496:50
2412.06:486:50
2512.06:476:50
2612.16:466:50
2712.16:456:50
2812.16:456:50
2912.16:446:50
3012.16:436:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.36 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.4 kWh/m² in October across the year — September's 6.36 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.2Intense
46.2Intense
56.2Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Januária

In seasonPeak

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

Januária's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Januária?

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

4.3
Sightseeing
7th-best month of the year
7.8
Beach & pool
5th-best month of the year

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

What to pack for Januária in September

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

In September, Januária sees daytime highs around 33°C and nights near 20°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Januária in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Januária peaks around February 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 15Jul 11UV 8
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Januária?

Januária sits at 15.5°S, 44.4°W, 466 m above sea level, in Brazil. The nearest listed city is Varzelândia, 44 km away.

Topography around Januária

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

Within 3 km, the terrain around Januária has only modest variations in elevation — a maximum elevation change of 47 m around an average of 462 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 317 m; within 80 km, significant variations in elevation — a maximum elevation change of 487 m.

The land around Januária is covered by grassland (31%) and artificial surfaces (23%) within 3 km, trees (38%), grassland (32%) and shrubs (21%) within 16 km, and shrubs (41%) and trees (34%) within 80 km.

3 km
47 m
16 km
317 m
80 km
487 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Varzelândia 44 km · Itacarambi 51 km · São João da Ponte 63 km · São Francisco 75 km · Jaíba 76 km · Brasília de Minas 81 km · Barreiro do Jaíba 84 km · Manga 93 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 Januária (-15.4795°, -44.3652°, elevation 466 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).