Bom Jardim weather in September

In September, Bom Jardim sees average daytime highs of 34°C and overnight lows near 24°C, with 10 mm of rain across 1.9 wet days and about 12 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 60% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Bom Jardim's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Bom Jardim's year-round climate.

Daytime high
34°
2nd warmest
Overnight low
24°
9th coldest
Rainfall
10 mm
1.9 wet days
Daylight
12 hours
5:57 AM – 5:56 PM
Cloud cover
39%
2nd clearest
Wind
10 km/h
2nd windiest
Solar energy
5.99 kWh/m²
Travel score
3.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical September day in Bom Jardim reaches about 34°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 36°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73424
83424
93424
103424
113424
123424
133424
143424
153524
163524
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524

How September really feels in Bom Jardim

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
12 feel dangerously hot (≥ 39°C)
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.

Bom Jardim weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°22224.812.22.6
Feb31° / 24°27525.412.12.5
Mar31° / 24°34129.4122.5
Apr31° / 24°35028.111.92.5
May31° / 24°1832311.83.1
Jun31° / 23°6413.511.84.1
Jul32° / 23°377.711.84.5
Aug33° / 23°122.711.94.1
Sep34° / 24°101.9123.4
Oct35° / 24°183.812.13.0
Nov34° / 25°41712.23.0
Dec33° / 24°10414.412.22.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 27% of September, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38911
48812
58812
68812
78812
88812
98812
108812
118812
128812
138713
148713
158713
168614
178614
188614
198614
208614
218614
228515
238515
248515
258515
268515
278515
288515
298515
308416

Chance of precipitation in September

Any precipitation

Bom Jardim gets around 10 mm of rain over 1.9 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 7% and peaks near 8% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
17
26
36
46
56
66
76
86
96
106
116
126
136
146
157
167
177
187
197
207
217
227
237
247
257
267
277
287
297
308

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 85% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
111881
212871
312871
413861
513861
614851
715841
815841
916831
1016831
1116831
1216831
1316831
1416840
1516840
1615850
1715850
1815850
1915850
2014860
2114860
2214860
2313870
2413870
2513870
2613870
2713870
2812880
2912880
3012880

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 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
19calm
29calm
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 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:04 AM to 5:51 AM, and sunset from 6:00 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:046:00
211.96:046:00
311.96:036:00
411.96:035:59
511.96:025:59
611.96:025:59
712.06:025:59
812.06:015:58
912.06:015:58
1012.06:005:58
1112.06:005:58
1212.05:595:57
1312.05:595:57
1412.05:585:57
1512.05:585:56
1612.05:575:56
1712.05:575:56
1812.05:565:56
1912.05:565:55
2012.05:555:55
2112.05:555:55
2212.05:555:55
2312.05:545:54
2412.05:545:54
2512.05:535:54
2612.05:535:54
2712.05:525:53
2812.05:525:53
2912.05:515:53
3012.05:515:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.99 kWh/m².

For context, solar energy here swings from a low near 4.25 kWh/m² to a high of 6.09 kWh/m² in October across the year — September's 5.99 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Bom Jardim

In seasonPeak

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

Bom Jardim's monsoon runs January–May, 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 Bom Jardim?

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

3.4
Sightseeing
4th-best month of the year
7.1
Beach & pool
3rd-best month of the year

September is a weaker month for outdoor sightseeing in Bom Jardim. The water and warmth also suit a beach or pool day.

What to pack for Bom Jardim in September

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

In September, Bom Jardim sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Bom Jardim 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 Bom Jardim peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Bom Jardim 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 Bom Jardim is worst in November — around 25 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1724 µg/m³Jul 167 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar15Moderate
Apr13Moderate
May10Good
Jun8Good
Jul7Good
Aug8Good
Sep10Good
Oct16Moderate
Nov25Moderate
Dec19Moderate
Location & terrain

Where is Bom Jardim?

Bom Jardim sits at 3.5°S, 45.6°W, 64 m above sea level, in Brazil. The nearest listed city is Santa Inês, 29 km away.

Topography around Bom Jardim

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

Within 3 km, the terrain around Bom Jardim has only modest variations in elevation — a maximum elevation change of 40 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, significant variations in elevation — a maximum elevation change of 317 m.

The land around Bom Jardim is covered by grassland (77%) within 3 km, grassland (63%) and trees (35%) within 16 km, and grassland (52%) and trees (45%) within 80 km.

3 km
40 m
16 km
71 m
80 km
317 m
treesgrasslandartificial surfaceswaterwetland
September weather nearby: Santa Inês 29 km · Alto Alegre do Pindaré 30 km · Pindaré-Mirim 30 km · Zé Doca 30 km · Monção 40 km · Santa Luzia 47 km · Penalva 56 km · Pio XII 60 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 Bom Jardim (-3.5428°, -45.6085°, elevation 64 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).