Itaperuna weather in September

In September, Itaperuna sees average daytime highs of 28°C and overnight lows near 18°C, with 56 mm of rain across 7.5 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 8th-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 36% 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 Itaperuna's 5th-clearest and 1st-windiest month. For the whole year in context, see Itaperuna's year-round climate.

Daytime high
28°
8th warmest
Overnight low
18°
5th coldest
Rainfall
56 mm
7.5 wet days
Daylight
11 h 54 min
6:45 AM – 6:38 PM
Cloud cover
55%
5th clearest
Wind
7 km/h
1st windiest
Solar energy
4.8 kWh/m²
Travel score
6.2
out of 10

Itaperuna is human 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 28°C through the month.

A typical September day in Itaperuna reaches about 28°C in the afternoon and slips back to 18°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 33°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12817
22817
32817
42817
52817
62817
72817
82817
92817
102817
112817
122817
132817
142817
152818
162818
172818
182818
192818
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818

How September really feels in Itaperuna

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.

Itaperuna weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°17716.213.13.6
Feb32° / 22°10811.612.73.8
Mar31° / 21°14315.712.14.0
Apr29° / 20°7210.411.55.3
May27° / 17°457117.0
Jun26° / 16°163.510.77.8
Jul26° / 15°164.210.87.8
Aug27° / 16°203.811.37.6
Sep28° / 18°567.511.96.2
Oct29° / 19°9910.712.55.2
Nov29° / 20°20216.7134.4
Dec30° / 21°22219.313.33.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56238
66238
76040
85941
95842
105743
115545
125347
135248
145149
154951
164852
174753
184654
194555
204357
214258
224258
234159
243961
253961
263862
273862
283961
293664
303763

Chance of precipitation in September

Any precipitation

Itaperuna gets around 56 mm of rain over 7.5 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 24% and peaks near 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
115
215
316
416
517
618
718
819
920
1020
1121
1222
1323
1424
1524
1625
1726
1827
1928
2029
2129
2230
2330
2431
2531
2631
2731
2831
2931
3031

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
162953120
262952130
362853130
462852140
562852140
662851150
752752160
852652170
952652170
1052551190
1142452200
1242352210
1342251221
1432250241
1532150251
1632050261
1731950271
1831849291
1931849301
2031748311
2131647321
2231646332
2341545352
2441544362
2541443373
2641441383
2741340394
2841339404
2931338415
3031238425

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 7:00 AM to 6:32 AM, and sunset from 6:34 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:006:34
211.66:596:35
311.66:586:35
411.66:576:35
511.76:566:35
611.76:556:36
711.76:546:36
811.76:536:36
911.76:526:37
1011.86:516:37
1111.86:506:37
1211.86:496:37
1311.86:486:38
1411.86:476:38
1511.96:466:38
1611.96:456:38
1711.96:446:39
1811.96:436:39
1911.96:426:39
2012.06:416:39
2112.06:406:40
2212.06:396:40
2312.06:396:40
2412.06:386:40
2512.16:376:41
2612.16:366:41
2712.16:356:41
2812.16:346:41
2912.26:336:42
3012.26:326:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.8 kWh/m².

For context, solar energy here swings from a low near 3.47 kWh/m² to a high of 6.1 kWh/m² in February across the year — September's 4.8 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Itaperuna

In seasonPeak

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

Itaperuna'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 Itaperuna?

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

6.2
Sightseeing
5th-best month of the year
7.3
Beach & pool
4th-best month of the year

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

What to pack for Itaperuna in September

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

In September, Itaperuna sees daytime highs around 28°C and nights near 18°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Itaperuna in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itaperuna peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 9UV 14Jun 22UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Itaperuna?

Itaperuna sits at 21.2°S, 41.9°W, 123 m above sea level, in Brazil. The nearest listed city is Natividade, 20 km away.

Topography around Itaperuna

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

Within 3 km, the terrain around Itaperuna has only modest variations in elevation — a maximum elevation change of 191 m around an average of 133 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 657 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,172 m.

The land around Itaperuna is covered by grassland (49%) and artificial surfaces (30%) within 3 km, grassland (77%) and trees (21%) within 16 km, and grassland (68%) and trees (30%) within 80 km.

3 km
191 m
16 km
657 m
80 km
2,172 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Natividade 20 km · Bom Jesus do Itabapoana 23 km · Porciúncula 31 km · Miracema 39 km · Cambuci 41 km · Santo Antônio de Pádua 48 km · Muriaé 50 km · São Fidélis 51 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 Itaperuna (-21.205°, -41.8878°, elevation 123 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).