Capão do Leão weather in September

In September, Capão do Leão sees average daytime highs of 20°C and overnight lows near 12°C, with 139 mm of rain across 10.5 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Capão do Leão's 11th-clearest and 2nd-windiest month. For the whole year in context, see Capão do Leão's year-round climate.

Daytime high
20°
9th warmest
Overnight low
12°
4th coldest
Rainfall
139 mm
10.5 wet days
Daylight
11 h 48 min
7:30 AM – 7:19 PM
Cloud cover
64%
11th clearest
Wind
14 km/h
2nd windiest
Solar energy
3.97 kWh/m²
Travel score
6.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical September day in Capão do Leão reaches about 20°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 26°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12011
22011
32011
42011
52011
62011
72011
82011
92011
102011
112011
122011
132011
142011
152011
162012
172012
182012
192012
202012
212012
222012
232012
242012
252012
262012
272112
282112
292112
302113

Capão do Leão weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°11712.513.85.5
Feb28° / 20°11212.113.25.6
Mar27° / 18°10411.212.26.4
Apr24° / 15°1139.911.26.8
May21° / 12°99910.46.5
Jun18° / 10°1029.2106.0
Jul18° / 1079.510.15.8
Aug19° / 10°1129.510.86.2
Sep20° / 12°13910.511.86.1
Oct22° / 14°13710.812.86.5
Nov25° / 16°979.213.66.9
Dec27° / 18°10310.7146.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34258
44159
54159
64060
74060
83961
93961
103961
113961
123862
133961
144060
153961
163961
173862
184060
193961
203961
214060
224060
234060
244060
253862
263862
273862
283763
293763
303763

Chance of precipitation in September

Any precipitation

Capão do Leão gets around 139 mm of rain over 10.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
337
437
537
638
738
838
937
1037
1137
1236
1336
1435
1535
1634
1734
1833
1933
2033
2133
2233
2333
2433
2533
2634
2734
2835
2935
3036

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 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15726161
25725171
35725171
45725171
55824171
65824171
75824171
85923171
95923171
105923171
115923171
125923171
135823172
145823172
155923162
165824162
175824162
185824162
195924152
205825152
215825152
225726152
235726152
245627152
255428162
265328163
275229163
285129173
295030173
304930183

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 18 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over September. Sunrise moves from 7:50 AM to 7:11 AM, and sunset from 7:09 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.37:507:09
211.37:497:10
311.47:487:10
411.47:467:11
511.47:457:12
611.57:447:12
711.57:427:13
811.57:417:14
911.67:407:14
1011.67:387:15
1111.67:377:15
1211.77:357:16
1311.77:347:17
1411.77:337:17
1511.87:317:18
1611.87:307:19
1711.87:297:19
1811.97:277:20
1911.97:267:20
2011.97:257:21
2112.07:237:22
2212.07:227:22
2312.07:207:23
2412.17:197:24
2512.17:187:24
2612.17:167:25
2712.27:157:26
2812.27:147:26
2912.27:127:27
3012.37:117:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.97 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 6.57 kWh/m² in December across the year — September's 3.97 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.9Moderate
143.9Moderate
153.9Moderate
164.0Moderate
174.0Bright
184.0Bright
194.1Bright
204.1Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Capão do Leão?

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

6.1
Sightseeing
8th-best month of the year
3.3
Beach & pool
9th-best month of the year

September is a reasonable time to visit Capão do Leão for sightseeing.

What to pack for Capão do Leão in September

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

In September, Capão do Leão sees daytime highs around 20°C and nights near 12°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near Capão do Leão in September

The nearest coast averages about 15°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 53 km away) is warmest in February at about 24°C and coldest in July near 14°C.

It's comfortable for a long swim from Nov 18 to May 4 — about 5.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Warm
Mar24Refreshing
Apr22Refreshing
May19Cool
Jun16Cool
Jul14Bracing
Aug14Bracing
Sep15Cool
Oct18Cool
Nov20Cool
Dec22Refreshing

UV index in Capão do Leão 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 Capão do Leão peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 12UV 12Jun 20UV 3
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar9Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7Very high
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Capão do Leão?

Capão do Leão sits at 31.8°S, 52.5°W, 22 m above sea level, in Brazil. The nearest listed city is Pelotas, 14 km away.

Topography around Capão do Leão

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

Within 3 km, the terrain around Capão do Leão has only modest variations in elevation — a maximum elevation change of 149 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 297 m; within 80 km, significant variations in elevation — a maximum elevation change of 507 m.

The land around Capão do Leão is covered by trees (57%) and grassland (28%) within 3 km, trees (32%), grassland (26%) and cropland (23%) within 16 km, and trees (29%), water (24%) and grassland (21%) within 80 km.

3 km
149 m
16 km
297 m
80 km
507 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Pelotas 14 km · Canguçu 45 km · Rio Grande 47 km · São José do Norte 50 km · São Lourenço do Sul 65 km · Piratini 68 km · Arroio Grande 78 km · Camaquã 120 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 Capão do Leão (-31.7633°, -52.4839°, elevation 22 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).