Itanhandu weather in September

In September, Itanhandu sees average daytime highs of 24°C and overnight lows near 13°C, with 79 mm of rain across 9.6 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 24°C through the month. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels dry.

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

Daytime high
24°
8th warmest
Overnight low
13°
5th coldest
Rainfall
79 mm
9.6 wet days
Daylight
11 h 54 min
6:58 AM – 6:50 PM
Cloud cover
53%
4th clearest
Wind
6 km/h
1st windiest
Solar energy
5.12 kWh/m²
Travel score
7.2
out of 10

Itanhandu 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 24°C through the month.

A typical September day in Itanhandu reaches about 24°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12412
22412
32412
42412
52412
62413
72413
82413
92413
102413
112413
122413
132413
142413
152413
162413
172413
182414
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302414

Itanhandu 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
Jan26° / 17°28924.313.24.4
Feb26° / 17°1872012.84.7
Mar25° / 17°17720.612.25.1
Apr24° / 15°641111.56.8
May22° / 12°466.610.97.2
Jun21° / 11°27410.77.6
Jul21° / 10°263.610.87.8
Aug23° / 11°284.411.28.0
Sep24° / 13°799.611.97.2
Oct25° / 15°12615.312.56.0
Nov24° / 16°1872013.15.1
Dec25° / 17°2562413.34.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
26931
36832
46832
56733
66535
76436
86337
96238
105941
115842
125743
135743
145644
155545
165347
175248
185149
195050
205050
214951
224852
234753
244654
254555
264456
274456
284456
294357
304258

Chance of precipitation in September

Any precipitation

Itanhandu gets around 79 mm of rain over 9.6 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 43% 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
422
523
624
724
825
925
1026
1127
1228
1328
1429
1530
1631
1732
1833
1934
2035
2136
2238
2339
2440
2541
2641
2742
2842
2943
3043

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
175241
274251
373261
471272
570282
669292
767312
865323
964333
1063343
1161354
1260355
1359365
1457376
1557376
1655387
1754388
1852399
19513910
20504011
21484012
22474013
23454014
24444016
25434117
26414118
27394119
28384220
29364222
30354323

Wind in September

Winds average 6 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 7:13 AM to 6:44 AM, and sunset from 6:46 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:136:46
211.67:126:46
311.67:116:47
411.67:106:47
511.67:096:47
611.77:086:47
711.77:076:48
811.77:066:48
911.77:056:48
1011.77:046:49
1111.87:036:49
1211.87:026:49
1311.87:016:49
1411.87:006:50
1511.96:596:50
1611.96:586:50
1711.96:576:51
1811.96:566:51
1911.96:556:51
2012.06:546:51
2112.06:536:52
2212.06:526:52
2312.06:516:52
2412.06:506:53
2512.16:496:53
2612.16:486:53
2712.16:476:54
2812.16:466:54
2912.26:456:54
3012.26:446:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.12 kWh/m².

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 5.52 kWh/m² in February across the year — September's 5.12 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Itanhandu

In seasonPeak

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

Itanhandu's monsoon runs November–March, 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 Itanhandu?

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

7.2
Sightseeing
4th-best month of the year
6.1
Beach & pool
1st-best month of the year

September is one of the better times to visit Itanhandu for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Itanhandu in September

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

In September, Itanhandu sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Itanhandu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itanhandu peaks around February 8 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep7Very high
Oct12Extreme
Nov14Extreme
Dec15Extreme

Air quality in Itanhandu 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 Itanhandu is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Dec 209 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep19Moderate
Oct13Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Itanhandu?

Itanhandu sits at 22.3°S, 44.9°W, 899 m above sea level, in Brazil. The nearest listed city is Passa Quatro, 11 km away.

Topography around Itanhandu

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

Within 3 km, the terrain around Itanhandu has only modest variations in elevation — a maximum elevation change of 234 m around an average of 947 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,705 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,719 m.

The land around Itanhandu is covered by grassland (51%) and trees (33%) within 3 km, grassland (49%) and trees (46%) within 16 km, and trees (48%) and grassland (45%) within 80 km.

3 km
234 m
16 km
1,705 m
80 km
2,719 m
treesgrasslandcroplandartificial surfaces
September weather nearby: Passa Quatro 11 km · São Lourenço 23 km · Cruzeiro 31 km · Caxambu 35 km · Baependi 38 km · Cachoeira Paulista 42 km · Itatiaia 44 km · Lorena 52 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 Itanhandu (-22.2958°, -44.9347°, elevation 899 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).