Bonito weather in September

In September, Bonito sees average daytime highs of 26°C and overnight lows near 19°C, with 48 mm of rain across 15.1 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 16% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Bonito's 3rd-clearest and 1st-windiest month. For the whole year in context, see Bonito's year-round climate.

Daytime high
26°
9th warmest
Overnight low
19°
3rd coldest
Rainfall
48 mm
15.1 wet days
Daylight
12 hours
5:19 AM – 5:16 PM
Cloud cover
56%
3rd clearest
Wind
11 km/h
1st windiest
Solar energy
5.13 kWh/m²
Travel score
6.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Bonito reaches about 26°C in the afternoon and slips back to 19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12519
22519
32519
42519
52519
62519
72519
82519
92519
102519
112519
122619
132619
142619
152619
162619
172619
182619
192619
202619
212619
222619
232619
242619
252619
262619
272719
282719
292719
302719

Bonito weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°4814.812.44.9
Feb29° / 21°521412.34.8
Mar29° / 21°6216.712.14.7
Apr28° / 21°6817.611.84.9
May27° / 20°8719.111.65.2
Jun25° / 20°10120.111.55.2
Jul24° / 19°9221.111.65.2
Aug25° / 18°6418.611.75.5
Sep26° / 19°4815.1126.0
Oct27° / 19°3511.512.26.3
Nov28° / 20°258.712.46.0
Dec29° / 21°3110.312.55.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 42% of September, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25149
35149
45149
55149
65248
75248
85248
95248
105248
115347
125347
135446
145446
155545
165743
175743
185941
195941
206040
216238
226337
236436
246634
256634
266733
276832
286832
296832
306832

Chance of precipitation in September

Any precipitation

Bonito gets around 48 mm of rain over 15.1 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 50% and peaks near 59% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
159
259
359
459
559
659
759
859
959
1058
1157
1257
1356
1454
1553
1652
1750
1848
1947
2045
2144
2242
2341
2440
2538
2638
2737
2837
2936
3037

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 78% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
126740
225750
325750
425750
525750
625750
725750
824760
924760
1024760
1124760
1223770
1323770
1423770
1522780
1622780
1721790
1821790
1921790
2020800
2120800
2219810
2319810
2419810
2518820
2618820
2717830
2817821
2916831
3016831

Wind in September

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

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 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 18 minutes over September. Sunrise moves from 5:28 AM to 5:10 AM, and sunset from 5:18 PM to 5:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:285:18
211.85:275:18
311.95:265:17
411.95:265:17
511.95:255:17
611.95:255:17
711.95:245:17
811.95:235:17
911.95:235:17
1011.95:225:17
1111.95:225:17
1211.95:215:16
1311.95:205:16
1411.95:205:16
1511.95:195:16
1612.05:195:16
1712.05:185:16
1812.05:175:16
1912.05:175:15
2012.05:165:15
2112.05:165:15
2212.05:155:15
2312.05:145:15
2412.05:145:15
2512.05:135:15
2612.05:135:15
2712.05:125:15
2812.15:115:14
2912.15:115:14
3012.15:105:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.13 kWh/m².

For context, solar energy here swings from a low near 3.79 kWh/m² to a high of 5.91 kWh/m² in November across the year — September's 5.13 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
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).

6.0
Sightseeing
2nd-best month of the year
5.6
Beach & pool
7th-best month of the year

September is a reasonable time to visit Bonito for sightseeing.

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 26°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

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

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 15UV 15Jul 14UV 10
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov13Extreme
Dec12Extreme
Location & terrain

Where is Bonito?

Bonito sits at 8.5°S, 35.7°W, 441 m above sea level, in Brazil. The nearest listed city is São Joaquim do Monte, 9.0 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 significant variations in elevation — a maximum elevation change of 373 m around an average of 498 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 689 m; within 80 km, large variations in elevation — a maximum elevation change of 1,174 m.

The land around Bonito is covered by grassland (71%) within 3 km, grassland (70%) and trees (27%) within 16 km, and grassland (65%) within 80 km.

3 km
373 m
16 km
689 m
80 km
1,174 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: São Joaquim do Monte 9.0 km · Camocim de São Félix 13 km · Catende 22 km · Agrestina 24 km · Bezerros 27 km · Palmares 28 km · Cupira 29 km · Amaraji 32 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 (-8.4703°, -35.7286°, elevation 441 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).