Jacarezinho weather in September

In September, Jacarezinho sees average daytime highs of 28°C and overnight lows near 16°C, with 94 mm of rain across 8.2 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 48% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Jacarezinho's 4th-clearest and 1st-windiest month. For the whole year in context, see Jacarezinho's year-round climate.

Daytime high
28°
8th warmest
Overnight low
16°
5th coldest
Rainfall
94 mm
8.2 wet days
Daylight
11 h 54 min
7:18 AM – 7:10 PM
Cloud cover
48%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
5.15 kWh/m²
Travel score
6.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Jacarezinho reaches about 28°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12815
22815
32816
42816
52816
62816
72816
82816
92816
102816
112816
122816
132816
142816
152816
162816
172816
182816
192816
202816
212817
222817
232817
242817
252817
262817
272817
282817
292817
302817

Jacarezinho weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°22520.813.33.8
Feb30° / 21°16718.112.84.0
Mar29° / 20°11915.412.24.6
Apr28° / 18°637.411.56.4
May25° / 15°736.910.97.4
Jun24° / 14°645.910.67.9
Jul24° / 13°484.810.78.1
Aug26° / 14°464.811.27.8
Sep28° / 16°948.211.96.8
Oct29° / 18°11611.712.55.4
Nov29° / 19°1351313.14.9
Dec30° / 20°16717.713.44.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37129
47030
56931
66832
76733
86535
96436
106436
116337
126238
136238
146040
156040
166040
175941
185941
195842
205743
215644
225545
235446
245347
255248
265149
275050
284951
294951
304852

Chance of precipitation in September

Any precipitation

Jacarezinho gets around 94 mm of rain over 8.2 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 27% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
118
219
320
420
521
622
723
823
924
1024
1125
1225
1326
1426
1526
1627
1727
1828
1928
2029
2129
2230
2331
2432
2532
2633
2733
2834
2934
3035

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13844163
23743173
33643183
43642184
53541194
63541204
73441214
83440215
93340225
103241225
113141235
123041236
132941246
142841256
152741257
162641267
172541277
182441287
192340288
202340298
212239309
2221383010
2321373111
2420363212
2519353213
2619343315
2718333316
2818323317
2917323318
3017313319

Wind in September

Winds average 11 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 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
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 30 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 42 minutes over September. Sunrise moves from 7:34 AM to 7:04 AM, and sunset from 7:05 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:347:05
211.67:337:06
311.67:327:06
411.67:317:06
511.67:307:07
611.67:297:07
711.77:287:07
811.77:277:08
911.77:267:08
1011.77:257:08
1111.87:237:09
1211.87:227:09
1311.87:217:09
1411.87:207:10
1511.87:197:10
1611.97:187:10
1711.97:177:11
1811.97:167:11
1911.97:157:11
2012.07:147:12
2112.07:137:12
2212.07:127:12
2312.07:117:12
2412.17:107:13
2512.17:097:13
2612.17:087:13
2712.17:077:14
2812.17:067:14
2912.27:057:15
3012.27:047:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.15 kWh/m².

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 5.95 kWh/m² in December across the year — September's 5.15 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Jacarezinho

In seasonPeak

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

Jacarezinho's rainy season runs October–March, 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 Jacarezinho?

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

6.8
Sightseeing
5th-best month of the year
7.2
Beach & pool
3rd-best month of the year

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

What to pack for Jacarezinho in September

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

In September, Jacarezinho sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Jacarezinho in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Jacarezinho peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 22UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Jacarezinho 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 Jacarezinho is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1517 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr8Good
May9Good
Jun9Good
Jul10Good
Aug13Moderate
Sep18Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Jacarezinho?

Jacarezinho sits at 23.2°S, 50.0°W, 448 m above sea level, in Brazil. The nearest listed city is Cambará, 17 km away.

Topography around Jacarezinho

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

Within 3 km, the terrain around Jacarezinho has only modest variations in elevation — a maximum elevation change of 198 m around an average of 494 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 521 m; within 80 km, large variations in elevation — a maximum elevation change of 787 m.

The land around Jacarezinho is covered by grassland (45%), trees (23%) and artificial surfaces (22%) within 3 km, cropland (37%), grassland (36%) and trees (25%) within 16 km, and cropland (50%), grassland (26%) and trees (20%) within 80 km.

3 km
198 m
16 km
521 m
80 km
787 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Cambará 17 km · Santo Antônio da Platina 19 km · Ourinhos 23 km · Andirá 29 km · Carlópolis 39 km · Bandeirantes 41 km · Santa Cruz do Rio Pardo 45 km · Palmital 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 Jacarezinho (-23.1606°, -49.9694°, elevation 448 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).