Bonito weather in September

In September, Bonito sees average daytime highs of 30°C and overnight lows near 19°C, with 108 mm of rain across 9.5 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 9th-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 51% of the time in September, and the air most often feels humid.

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 Bonito's 4th-clearest and 1st-windiest month. For the whole year in context, see Bonito's year-round climate.

Daytime high
30°
7th warmest
Overnight low
19°
5th coldest
Rainfall
108 mm
9.5 wet days
Daylight
11 h 54 min
6:44 AM – 6:37 PM
Cloud cover
44%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
5.37 kWh/m²
Travel score
5.4
out of 10

Bonito is 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 Bonito reaches about 30°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 23°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
12918
22918
32918
42918
52918
62918
72918
83018
93018
103018
113018
123018
133018
143018
153019
163019
173019
183019
193019
203019
213019
223019
233019
243019
253019
263019
273019
283019
293019
303019

How September really feels in Bonito

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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bonito weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°2182213.13.4
Feb30° / 22°19620.612.73.5
Mar30° / 22°16318.312.14.0
Apr29° / 20°11311.111.55.6
May26° / 17°1109.1117.0
Jun25° / 16°71710.77.6
Jul25° / 15°575.510.87.9
Aug28° / 16°605.411.37.2
Sep30° / 19°1089.511.95.4
Oct30° / 20°16515.112.54.3
Nov30° / 21°18616.7134.0
Dec31° / 22°23420.913.33.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17525
27327
37327
47228
57129
67030
77030
86931
96931
106931
116931
126832
136832
146832
156832
166832
176733
186733
196733
206634
216634
226535
236436
246436
256337
266139
276040
286040
295941
305842

Chance of precipitation in September

Any precipitation

Bonito gets around 108 mm of rain over 9.5 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 32% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
121
221
322
423
524
624
725
826
926
1027
1127
1228
1329
1429
1530
1631
1732
1833
1934
2035
2136
2237
2338
2439
2540
2641
2742
2843
2943
3044

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
134312590
234312690
3333126101
4323126101
5313026111
6313027111
7302927121
8292928132
9282828142
10282729152
11272629162
12262530172
13252431182
14242431192
15232331213
16222231223
17212231233
18202131253
19202031263
20192030283
21182030294
22171929314
23161929324
24151829345
25141828355
26131827365
27121727386
28121726396
29111726397
30101725408

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 6:58 AM to 6:30 AM, and sunset from 6:33 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:586:33
211.66:576:33
311.66:576:33
411.66:566:34
511.76:556:34
611.76:546:34
711.76:536:34
811.76:526:35
911.76:516:35
1011.86:506:35
1111.86:496:35
1211.86:486:36
1311.86:476:36
1411.86:466:36
1511.96:456:36
1611.96:446:37
1711.96:436:37
1811.96:426:37
1911.96:416:37
2012.06:406:38
2112.06:396:38
2212.06:386:38
2312.06:376:38
2412.06:366:39
2512.16:356:39
2612.16:346:39
2712.16:336:40
2812.16:326:40
2912.26:316:40
3012.26:306:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.37 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 6.09 kWh/m² in December across the year — September's 5.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Is September a good time to visit Bonito?

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
7.2
Beach & pool
2nd-best month of the year

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

What to pack for Bonito in September

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

In September, Bonito sees daytime highs around 30°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Bonito in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bonito peaks around January 19 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateExtremeJan 19UV 16Sep 14UV 3
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May7Very high
Jun6High
Jul6High
Aug7Very high
Sep2Moderate
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in Bonito 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 Bonito is worst in September — around 27 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (April, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1726 µg/m³Apr 165 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar6Good
Apr5Good
May6Good
Jun6Good
Jul6Good
Aug15Moderate
Sep27Moderate
Oct18Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Bonito?

Bonito sits at 21.1°S, 56.5°W, 306 m above sea level, in Brazil. The nearest listed city is Jardim, 54 km away.

Topography around Bonito

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

Within 3 km, the terrain around Bonito has only modest variations in elevation — a maximum elevation change of 202 m around an average of 317 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 453 m; within 80 km, large variations in elevation — a maximum elevation change of 711 m.

The land around Bonito is covered by trees (42%) and grassland (31%) within 3 km, trees (48%) and grassland (35%) within 16 km, and trees (48%) and grassland (43%) within 80 km.

3 km
202 m
16 km
453 m
80 km
711 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Jardim 54 km · Miranda 98 km · Anastácio 100 km · Aquidauana 102 km · Bela Vista 110 km · Maracaju 147 km · Sidrolândia 159 km · Ponta Porã 176 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 Bonito (-21.1211°, -56.4819°, elevation 306 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).