São Joaquim da Barra weather in September

In September, São Joaquim da Barra sees average daytime highs of 30°C and overnight lows near 19°C, with 60 mm of rain across 7.3 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 30°C through the month. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is São Joaquim da Barra's 4th-clearest and 1st-windiest month. For the whole year in context, see São Joaquim da Barra's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
19°
5th coldest
Rainfall
60 mm
7.3 wet days
Daylight
11 h 54 min
7:09 AM – 7:02 PM
Cloud cover
42%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
5.8 kWh/m²
Travel score
5.4
out of 10

São Joaquim da Barra 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 30°C through the month.

A typical September day in São Joaquim da Barra reaches about 30°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°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
43018
53018
63018
73018
83018
93018
103018
113018
123019
133019
143019
153019
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019

São Joaquim da Barra 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° / 21°26824.113.13.7
Feb29° / 20°19419.412.73.9
Mar29° / 20°16920.812.14.2
Apr29° / 19°679.711.55.9
May27° / 16°385.2117.6
Jun26° / 15°222.410.88.2
Jul27° / 15°121.910.98.3
Aug29° / 16°142.511.37.2
Sep30° / 19°607.311.95.4
Oct30° / 20°10913.912.54.3
Nov29° / 20°17719.4134.1
Dec29° / 20°25124.313.23.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27921
37822
47822
57723
67624
77624
87525
97426
107327
117228
127030
136931
146832
156832
166733
176634
186535
196436
206436
216337
226238
236139
246040
255941
265842
275842
285842
295644
305644

Chance of precipitation in September

Any precipitation

São Joaquim da Barra gets around 60 mm of rain over 7.3 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 25% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
113
214
314
415
515
616
717
818
918
1019
1120
1221
1321
1422
1523
1624
1725
1826
1927
2028
2129
2230
2332
2433
2534
2635
2736
2837
2938
3039

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16722101
26622111
36522121
46323131
56223141
66223141
75924152
85725162
95625172
105426182
115227192
125028203
134829213
144630213
154430223
164231234
174032244
183932255
193732265
203532276
213432286
223232297
233131308
243030319
2529293210
2628283311
2727273313
2826263414
2925253515
3025243516

Wind in September

Winds average 10 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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

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

Days grow by about 36 minutes over September. Sunrise moves from 7:24 AM to 6:56 AM, and sunset from 6:59 PM to 7:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:246:59
211.67:236:59
311.67:226:59
411.67:216:59
511.77:207:00
611.77:197:00
711.77:187:00
811.77:177:00
911.77:167:01
1011.87:157:01
1111.87:147:01
1211.87:137:01
1311.87:127:02
1411.87:117:02
1511.97:107:02
1611.97:097:02
1711.97:087:02
1811.97:077:03
1911.97:067:03
2012.07:057:03
2112.07:047:03
2212.07:037:04
2312.07:027:04
2412.07:017:04
2512.17:007:04
2612.17:007:05
2712.16:597:05
2812.16:587:05
2912.16:577:05
3012.26:567:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.8 kWh/m².

For context, solar energy here swings from a low near 4.05 kWh/m² to a high of 6.08 kWh/m² in October across the year — September's 5.8 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for São Joaquim da Barra

In seasonPeak

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

São Joaquim da Barra'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 São Joaquim da Barra?

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

5.4
Sightseeing
6th-best month of the year
7.4
Beach & pool
5th-best month of the year

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

What to pack for São Joaquim da Barra in September

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

In September, São Joaquim da Barra sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in São Joaquim da Barra in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 São Joaquim da Barra peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 23UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in São Joaquim da Barra in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in São Joaquim da Barra is worst in September — around 42 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (November, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1539 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug20Moderate
Sep42Poor
Oct15Moderate
Nov7Good
Dec8Good
Location & terrain

Where is São Joaquim da Barra?

São Joaquim da Barra sits at 20.6°S, 47.9°W, 623 m above sea level, in Brazil. The nearest listed city is Orlândia, 16 km away.

Topography around São Joaquim da Barra

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Joaquim da Barra.

Within 3 km, the terrain around São Joaquim da Barra has only modest variations in elevation — a maximum elevation change of 180 m around an average of 630 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 779 m.

The land around São Joaquim da Barra is covered by cropland (46%) and artificial surfaces (29%) within 3 km, cropland (74%) within 16 km, and cropland (62%) and trees (23%) within 80 km.

3 km
180 m
16 km
307 m
80 km
779 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Orlândia 16 km · Guará 17 km · Morro Agudo 27 km · Ituverava 28 km · Batatais 44 km · Franca 47 km · Miguelópolis 48 km · Jardinópolis 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 São Joaquim da Barra (-20.5814°, -47.8547°, elevation 623 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).