Candeias do Jamari weather in September

In September, Candeias do Jamari sees average daytime highs of 33°C and overnight lows near 23°C, with 90 mm of rain across 15.4 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 29% of the time in September, and the air most often feels oppressive.

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 Candeias do Jamari's 4th-clearest and 3rd-windiest month. For the whole year in context, see Candeias do Jamari's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
23°
8th coldest
Rainfall
90 mm
15.4 wet days
Daylight
12 hours
6:11 AM – 6:08 PM
Cloud cover
59%
4th clearest
Wind
5 km/h
3rd windiest
Solar energy
5.53 kWh/m²
Travel score
2.9
out of 10

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 Candeias do Jamari reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°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 on par with August and about 1°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53423
63423
73423
83423
93423
103423
113423
123423
133423
143423
153323
163323
173323
183323
193323
203324
213324
223324
233324
243324
253324
263324
273324
283324
293324
303324

How September really feels in Candeias do Jamari

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.

Candeias do Jamari 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
Jan30° / 23°30328.912.52.7
Feb30° / 23°31326.412.32.7
Mar30° / 24°31729.512.12.7
Apr30° / 23°21926.311.82.9
May30° / 23°12921.411.63.5
Jun31° / 22°419.211.54.7
Jul32° / 22°204.411.54.6
Aug34° / 22°406.711.73.5
Sep33° / 23°9015.411.92.9
Oct32° / 24°15822.112.22.7
Nov31° / 24°22425.812.42.7
Dec30° / 24°28728.112.52.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26535
36436
46337
56238
66238
76040
86040
95941
105842
115743
125644
135545
145446
155248
165149
174951
184951
194852
204555
214456
224357
234357
244258
254258
264159
274060
284060
294060
303862

Chance of precipitation in September

Any precipitation

Candeias do Jamari gets around 90 mm of rain over 15.4 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 61% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
242
342
443
544
644
745
845
945
1046
1146
1246
1347
1448
1548
1649
1750
1851
1952
2053
2154
2255
2356
2457
2558
2659
2759
2860
2961
3061

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1135146611
2135146612
3024136912
4024136813
5024126913
6024126913
7023127013
8013127014
9013117114
10013117114
11013107115
12013107115
1301297315
1401297216
1501287316
1601287217
1701277218
1801267219
1901267120
2001267121
2101157122
2201157023
2300147124
2400147025
2500147025
2600137026
2700136927
2800136927
2900136828
3000126928

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:20 AM to 6:02 AM, and sunset from 6:09 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:206:09
211.86:196:09
311.86:186:09
411.96:186:09
511.96:176:09
611.96:176:09
711.96:166:09
811.96:156:09
911.96:156:09
1011.96:146:08
1111.96:146:08
1211.96:136:08
1311.96:126:08
1411.96:126:08
1511.96:116:08
1612.06:116:08
1712.06:106:08
1812.06:096:07
1912.06:096:07
2012.06:086:07
2112.06:076:07
2212.06:076:07
2312.06:066:07
2412.06:066:07
2512.06:056:07
2612.06:046:07
2712.06:046:06
2812.16:036:06
2912.16:036:06
3012.16:026:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.53 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.53 kWh/m² in September across the year — September's 5.53 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Candeias do Jamari

In seasonPeak

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

Candeias do Jamari's rainy season runs October–April, 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 Candeias do Jamari?

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

2.9
Sightseeing
5th-best month of the year
5.4
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Candeias do Jamari.

What to pack for Candeias do Jamari in September

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

In September, Candeias do Jamari sees daytime highs around 33°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Candeias do Jamari in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Candeias do Jamari peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 12 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 20UV 15Sep 12UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug6High
Sep3Moderate
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Candeias do Jamari 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 Candeias do Jamari is worst in August — around 101 µg/m³ PM2.5 (unhealthy), about 9.5× the cleanest month (May, 11 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyModerateAug 24100 µg/m³May 1611 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar15Moderate
Apr12Good
May11Good
Jun12Good
Jul34Moderate
Aug101Unhealthy
Sep100Unhealthy
Oct36Poor
Nov20Moderate
Dec15Moderate
Location & terrain

Where is Candeias do Jamari?

Candeias do Jamari sits at 8.8°S, 63.7°W, 91 m above sea level, in Brazil. The nearest listed city is Porto Velho, 23 km away.

Topography around Candeias do Jamari

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

Within 3 km, the terrain around Candeias do Jamari has only modest variations in elevation — a maximum elevation change of 53 m around an average of 83 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, significant variations in elevation — a maximum elevation change of 341 m.

The land around Candeias do Jamari is covered by trees (54%) and grassland (32%) within 3 km, trees (51%) and grassland (44%) within 16 km, and trees (73%) and grassland (23%) within 80 km.

3 km
53 m
16 km
105 m
80 km
341 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Porto Velho 23 km · Alto Paraíso 110 km · Ariquemes 142 km · Buritis 157 km · Humaitá 161 km · Machadinho d'Oeste 201 km · Lábrea 210 km · Jaru 226 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 Candeias do Jamari (-8.8097°, -63.6956°, elevation 91 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).