São Jerônimo weather in October

In October, São Jerônimo sees average daytime highs of 24°C and overnight lows near 15°C, with 170 mm of rain across 12.1 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 26% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 12 min by month's end. Set against the rest of the year, October is São Jerônimo's 12th-clearest and 1st-windiest month. For the whole year in context, see São Jerônimo's year-round climate.

Daytime high
24°
7th warmest
Overnight low
15°
6th coldest
Rainfall
170 mm
12.1 wet days
Daylight
12 h 42 min
6:50 AM – 7:34 PM
Cloud cover
67%
12th clearest
Wind
11 km/h
1st windiest
Solar energy
4.8 kWh/m²
Travel score
6.4
out of 10

São Jerônimo is settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 25°C by the end.

A typical October day in São Jerônimo reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 29°C. Set against its neighbours, October runs about 2°C warmer than September and about 3°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52314
62314
72315
82415
92415
102415
112415
122415
132415
142415
152415
162415
172415
182515
192515
202516
212516
222516
232516
242516
252516
262516
272516
282516
292516
302516
312516

São Jerônimo weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°1281413.74.6
Feb30° / 20°11812.613.14.7
Mar28° / 19°1051112.25.8
Apr25° / 16°1089.211.36.9
May21° / 13°1118.810.56.7
Jun19° / 11°1199.310.16.1
Jul19° / 10°1441010.36.1
Aug21° / 11°1191010.96.5
Sep22° / 13°14911.311.86.3
Oct24° / 15°17012.112.76.4
Nov27° / 17°12110.113.56.5
Dec29° / 19°11811.813.95.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53565
63565
73466
83466
93466
103466
113565
123565
133664
143763
153763
163763
173763
183763
193862
203862
213862
223862
233862
243961
253961
263961
273961
284060
294159
304159
314258

Chance of precipitation in October

Any precipitation

São Jerônimo gets around 170 mm of rain over 12.1 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
339
439
540
640
740
840
940
1039
1139
1239
1339
1439
1539
1639
1739
1839
1939
2039
2139
2239
2338
2438
2538
2638
2737
2837
2937
3036
3136

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the comfortable band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1362825100
2352825110
3342826120
4332826130
5312826140
6302827150
7292827160
8282827170
9262827181
10262827191
11252827191
12242927201
13232927201
14222928201
15212928211
16213028211
17203028211
18202929221
19192929221
20192929221
21192928231
22202828231
23202828231
24202828231
25202828231
26202728231
27202728231
28202728232
29202628242
30202628242
31202529242

Wind in October

Winds average 11 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
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
2911calm
3011calm
3111calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over October. Sunrise moves from 7:07 AM to 6:36 AM, and sunset from 7:24 PM to 7:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.37:077:24
212.37:067:25
312.37:057:26
412.47:047:26
512.47:027:27
612.47:017:28
712.57:007:28
812.56:597:29
912.56:587:29
1012.66:567:30
1112.66:557:31
1212.66:547:31
1312.66:537:32
1412.76:527:33
1512.76:517:33
1612.76:507:34
1712.86:497:35
1812.86:487:35
1912.86:477:36
2012.96:467:37
2112.96:457:38
2212.96:447:38
2312.96:437:39
2413.06:427:40
2513.06:417:41
2613.06:407:41
2713.06:397:42
2813.16:387:43
2913.16:377:44
3013.16:377:44
3113.26:367:45

Solar energy in October

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 6.48 kWh/m² in December across the year — October's 4.8 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.6Bright
104.6Bright
114.6Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
205.0Bright
215.0Bright
225.0Bright
235.1Bright
245.1Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.4Bright
315.4Bright
Planning a trip in October

Is October a good time to visit São Jerônimo?

Our two travel scores rate October 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
7th-best month of the year

October is a reasonable time to visit São Jerônimo for sightseeing.

What to pack for São Jerônimo in October

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

In October, São Jerônimo sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in São Jerônimo in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 São Jerônimo peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 15UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr7Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct7Very high
Nov11Extreme
Dec12Extreme

Air quality in São Jerônimo in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in São Jerônimo is worst in August — around 20 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1720 µg/m³Dec 1811 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar12Good
Apr15Moderate
May17Moderate
Jun17Moderate
Jul19Moderate
Aug20Moderate
Sep19Moderate
Oct13Moderate
Nov12Good
Dec10Good
Location & terrain

Where is São Jerônimo?

São Jerônimo sits at 30.0°S, 51.7°W, 18 m above sea level, in Brazil. The nearest listed city is Triunfo, 2.0 km away.

Topography around São Jerônimo

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

Within 3 km, the terrain around São Jerônimo has only modest variations in elevation — a maximum elevation change of 46 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 168 m; within 80 km, large variations in elevation — a maximum elevation change of 740 m.

The land around São Jerônimo is covered by trees (38%) and water (21%) within 3 km, trees (40%), grassland (30%) and cropland (20%) within 16 km, and trees (53%) within 80 km.

3 km
46 m
16 km
168 m
80 km
740 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Triunfo 2.0 km · Charqueadas 9.0 km · Eldorado do Sul 17 km · Taquari 22 km · Butiá 29 km · Montenegro 39 km · Guaíba 42 km · Nova Santa Rita 45 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 São Jerônimo (-29.9592°, -51.7222°, elevation 18 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).