Resende weather in September

In September, Resende sees average daytime highs of 24°C and overnight lows near 14°C, with 115 mm of rain across 13.7 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 24°C through the month. The sky is clear or mostly clear about 35% 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 Resende's 5th-clearest and 1st-windiest month. For the whole year in context, see Resende's year-round climate.

Daytime high
24°
8th warmest
Overnight low
14°
5th coldest
Rainfall
115 mm
13.7 wet days
Daylight
11 h 54 min
6:56 AM – 6:48 PM
Cloud cover
58%
5th clearest
Wind
5 km/h
1st windiest
Solar energy
4.79 kWh/m²
Travel score
6.4
out of 10

Resende is human settlement in Brazil.

Air quality
Good
PM2.5 9 µg/m³ · 2015

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 Resende reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°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)
12413
22413
32413
42413
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162414
172414
182414
192414
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415

Resende 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
Jan27° / 19°40424.913.24.2
Feb27° / 18°3072012.84.6
Mar26° / 18°30722.712.24.7
Apr25° / 16°13215.111.56.0
May23° / 14°7711.210.96.7
Jun22° / 12°457.710.77.3
Jul22° / 12°457.410.87.3
Aug23° / 12°477.511.27.5
Sep24° / 14°11513.711.96.4
Oct25° / 16°19419.112.55.3
Nov25° / 17°31022.613.14.6
Dec26° / 18°38025.213.44.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36040
46040
55941
65842
75743
85644
95446
105347
115248
125050
135050
144951
154753
164753
174654
184555
194456
204357
214060
223961
233961
243862
253763
263763
273664
283565
293466
303367

Chance of precipitation in September

Any precipitation

Resende gets around 115 mm of rain over 13.7 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 45% and peaks near 59% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
133
234
334
435
536
636
737
838
938
1039
1140
1240
1341
1442
1543
1644
1745
1846
1947
2049
2150
2251
2353
2454
2555
2656
2757
2858
2959
3059

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 45% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13947140
23847140
33748150
43648160
53548170
63448180
73348190
83247210
93147220
103047230
112847250
122747260
132647280
142447290
152346300
162246310
172146321
182145331
192045341
201944351
211943362
221843372
231842383
241741393
251640394
261640405
271539415
281538416
291438426
301437437

Wind in September

Winds average 5 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 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 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 7:11 AM to 6:42 AM, and sunset from 6:44 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:116:44
211.67:106:44
311.67:096:44
411.67:086:45
511.67:076:45
611.77:066:45
711.77:056:46
811.77:046:46
911.77:036:46
1011.77:026:47
1111.87:016:47
1211.87:006:47
1311.86:596:47
1411.86:586:48
1511.96:576:48
1611.96:566:48
1711.96:556:49
1811.96:546:49
1911.96:536:49
2012.06:526:49
2112.06:516:50
2212.06:506:50
2312.06:496:50
2412.16:486:51
2512.16:476:51
2612.16:466:51
2712.16:456:52
2812.16:446:52
2912.26:436:52
3012.26:426:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.79 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 5.52 kWh/m² in February across the year — September's 4.79 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
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 Resende

In seasonPeak

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

Resende'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 Resende?

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

6.4
Sightseeing
5th-best month of the year
5.5
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Resende for sightseeing.

What to pack for Resende in September

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

In September, Resende sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Resende 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 Resende peaks around February 9 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 9UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep7Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Resende?

Resende sits at 22.5°S, 44.4°W, 408 m above sea level, in Brazil. The nearest listed city is Itatiaia, 12 km away.

Topography around Resende

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

Within 3 km, the terrain around Resende has only modest variations in elevation — a maximum elevation change of 130 m around an average of 416 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,527 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,761 m.

The land around Resende is covered by grassland (44%), artificial surfaces (29%) and trees (23%) within 3 km, grassland (50%) and trees (44%) within 16 km, and trees (50%) and grassland (42%) within 80 km.

3 km
130 m
16 km
1,527 m
80 km
2,761 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Itatiaia 12 km · Porto Real 17 km · Barra Mansa 29 km · Volta Redonda 36 km · Rio Claro 43 km · Pinheiral 46 km · Itanhandu 54 km · Passa Quatro 54 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 Resende (-22.4689°, -44.4467°, elevation 408 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).