Salto do Lontra weather in September

In September, Salto do Lontra sees average daytime highs of 26°C and overnight lows near 15°C, with 162 mm of rain across 10.2 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 45% 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 Salto do Lontra's 3rd-clearest and 1st-windiest month. For the whole year in context, see Salto do Lontra's year-round climate.

Daytime high
26°
8th warmest
Overnight low
15°
5th coldest
Rainfall
162 mm
10.2 wet days
Daylight
11 h 54 min
7:32 AM – 7:23 PM
Cloud cover
49%
3rd clearest
Wind
11 km/h
1st windiest
Solar energy
4.83 kWh/m²
Travel score
6.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Salto do Lontra reaches about 26°C in the afternoon and slips back to 15°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 32°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12514
22514
32614
42614
52614
62614
72614
82614
92614
102614
112614
122614
132614
142614
152615
162615
172615
182615
192615
202515
212515
222515
232615
242615
252615
262615
272615
282615
292615
302615

Salto do Lontra weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 20°15616.813.44.3
Feb29° / 20°15015.612.94.5
Mar29° / 19°12012.912.25.3
Apr26° / 17°1249.711.46.7
May23° / 13°1539.510.87.0
Jun22° / 12°1499.210.46.7
Jul22° / 11°1178.710.67.0
Aug24° / 13°1007.111.17.7
Sep26° / 15°16210.211.86.9
Oct27° / 17°21214.412.65.9
Nov28° / 18°15912.313.35.7
Dec29° / 19°18216.313.64.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26535
36535
46337
56337
66238
76139
86139
96040
106040
116040
125941
135941
145941
155842
165842
175743
185743
195644
205545
215545
225446
235347
245248
255248
265149
275050
284951
294951
304852

Chance of precipitation in September

Any precipitation

Salto do Lontra gets around 162 mm of rain over 10.2 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 34% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
125
225
326
426
527
627
728
829
929
1030
1131
1231
1332
1432
1533
1634
1734
1835
1936
2037
2137
2238
2339
2439
2540
2641
2741
2842
2942
3042

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14037212
24036222
34036222
43935232
53935242
63934252
73933253
83833263
93832273
103831283
113731293
123730303
133629304
143629314
153628315
163528325
173528326
183427326
193427327
203327337
213227338
223127338
233027349
242927349
2528273510
2626283611
2725283611
2824283712
2923273712
3022273813

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
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm

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 7:49 AM to 7:16 AM, and sunset from 7:17 PM to 7:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:497:17
211.57:487:17
311.57:477:18
411.57:467:18
511.67:457:19
611.67:437:19
711.67:427:19
811.67:417:20
911.77:407:20
1011.77:397:21
1111.77:387:21
1211.77:377:21
1311.87:357:22
1411.87:347:22
1511.87:337:23
1611.97:327:23
1711.97:317:23
1811.97:307:24
1911.97:297:24
2012.07:277:25
2112.07:267:25
2212.07:257:26
2312.07:247:26
2412.17:237:26
2512.17:227:27
2612.17:217:27
2712.17:197:28
2812.27:187:28
2912.27:177:29
3012.27:167:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 6.35 kWh/m² in December across the year — September's 4.83 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Salto do Lontra?

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

6.9
Sightseeing
4th-best month of the year
6.4
Beach & pool
4th-best month of the year

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

What to pack for Salto do Lontra in September

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

In September, Salto do Lontra sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Salto do Lontra 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 Salto do Lontra peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep7Very high
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Salto do Lontra 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 Salto do Lontra is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1619 µg/m³Mar 136 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar6Good
Apr8Good
May7Good
Jun7Good
Jul9Good
Aug12Moderate
Sep20Moderate
Oct13Moderate
Nov9Good
Dec7Good
Location & terrain

Where is Salto do Lontra?

Salto do Lontra sits at 25.8°S, 53.3°W, 456 m above sea level, in Brazil. The nearest listed city is Ampére, 22 km away.

Topography around Salto do Lontra

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

Within 3 km, the terrain around Salto do Lontra has only modest variations in elevation — a maximum elevation change of 200 m around an average of 490 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 425 m; within 80 km, large variations in elevation — a maximum elevation change of 763 m.

The land around Salto do Lontra is covered by trees (45%) and cropland (31%) within 3 km, trees (40%), cropland (40%) and grassland (20%) within 16 km, and trees (48%) and cropland (34%) within 80 km.

3 km
200 m
16 km
425 m
80 km
763 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Ampére 22 km · Realeza 22 km · Dois Vizinhos 26 km · Francisco Beltrão 42 km · Marmeleiro 49 km · Capanema 52 km · Santo Antônio do Sudoeste 53 km · Quedas do Iguaçu 55 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 Salto do Lontra (-25.7839°, -53.3086°, elevation 456 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).