Riacho de Santana weather in October

In October, Riacho de Santana sees average daytime highs of 34°C and overnight lows near 22°C, with 36 mm of rain across 5.3 wet days and about 12.3 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 41% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 12 h 06 min at the start of October to 12 h 30 min by month's end. Set against the rest of the year, October is Riacho de Santana's 6th-clearest and 5th-windiest month. For the whole year in context, see Riacho de Santana's year-round climate.

Daytime high
34°
1st warmest
Overnight low
22°
11th coldest
Rainfall
36 mm
5.3 wet days
Daylight
12 h 18 min
5:27 AM – 5:46 PM
Cloud cover
49%
6th clearest
Wind
10 km/h
5th windiest
Solar energy
6.61 kWh/m²
Travel score
3.4
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical October day in Riacho de Santana reaches about 34°C in the afternoon and slips back to 22°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 37°C. Set against its neighbours, October runs on par with September and about 2°C warmer than November.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13421
23421
33421
43421
53421
63421
73421
83421
93421
103421
113422
123422
133422
143422
153422
163422
173422
183422
193422
203422
213422
223422
233422
243422
253422
263422
273322
283322
293322
303322
313322

How October really feels in Riacho de Santana

Once humidity and wind are folded in, October averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Riacho de Santana weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°10611.612.74.1
Feb32° / 22°7710.812.54.0
Mar31° / 22°9611.712.14.1
Apr31° / 21°435.911.74.8
May31° / 20°81.611.45.5
Jun30° / 19°10.411.26.3
Jul30° / 18°00.111.36.5
Aug31° / 18°10.111.55.7
Sep33° / 20°61.311.94.2
Oct34° / 22°365.312.33.4
Nov32° / 22°12912.912.63.7
Dec31° / 22°10712.912.84.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 21% of October, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27426
37327
47327
57327
67228
77228
87228
97129
107129
116931
126832
136832
146733
156634
166436
176436
186337
196238
206040
215941
225842
235644
245446
255248
265149
275050
284852
294753
304753
314555

Chance of precipitation in October

Any precipitation

Riacho de Santana gets around 36 mm of rain over 5.3 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 17% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
19
29
39
49
59
610
710
811
911
1012
1112
1213
1314
1414
1515
1615
1716
1817
1918
2019
2120
2221
2323
2424
2525
2627
2728
2829
2930
3031
3132

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131461940
230461950
330471950
429471950
529471860
629471860
729471860
829461870
929461870
1029451880
1129451880
1229441890
1329431990
14294219100
15294119100
16284120110
17284020120
18283920120
19273920131
20263821151
21253721161
22243621171
23233522191
24223422201
25213322222
26203322242
27193222252
28183122272
29183022282
30172922302
31172822312

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 9 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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 06 min at the start of October to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over October. Sunrise moves from 5:37 AM to 5:21 AM, and sunset from 5:44 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:375:44
212.15:365:44
312.15:365:44
412.25:355:45
512.25:345:45
612.25:345:45
712.25:335:45
812.25:325:45
912.25:325:45
1012.25:315:45
1112.25:305:45
1212.35:305:45
1312.35:295:46
1412.35:295:46
1512.35:285:46
1612.35:275:46
1712.35:275:46
1812.35:265:46
1912.35:265:47
2012.45:255:47
2112.45:255:47
2212.45:245:47
2312.45:245:48
2412.45:235:48
2512.45:235:48
2612.45:235:48
2712.45:225:49
2812.55:225:49
2912.55:215:49
3012.55:215:50
3112.55:215:50

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.61 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 6.61 kWh/m² in October across the year — October's 6.61 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.8Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.6Intense
196.6Intense
206.6Intense
216.5Intense
226.5Intense
236.5Intense
246.4Intense
256.4Intense
266.3Intense
276.3Intense
286.3Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in October

Hazard calendar for Riacho de Santana

In seasonPeak

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

Riacho de Santana's rainy season runs November–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Riacho de Santana?

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

3.4
Sightseeing
12th-best month of the year
6.7
Beach & pool
7th-best month of the year

October is a weaker month for outdoor sightseeing in Riacho de Santana. The water and warmth also suit a beach or pool day.

What to pack for Riacho de Santana in October

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

In October, Riacho de Santana sees daytime highs around 34°C and nights near 22°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Riacho de Santana in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Riacho de Santana peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 18UV 15Jul 10UV 9
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Riacho de Santana?

Riacho de Santana sits at 13.6°S, 42.9°W, 626 m above sea level, in Brazil. The nearest listed city is Igaporã, 30 km away.

Topography around Riacho de Santana

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

Within 3 km, the terrain around Riacho de Santana has only modest variations in elevation — a maximum elevation change of 247 m around an average of 637 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 710 m; within 80 km, large variations in elevation — a maximum elevation change of 813 m.

The land around Riacho de Santana is covered by shrubs (31%), trees (29%) and grassland (26%) within 3 km, shrubs (40%), trees (32%) and grassland (20%) within 16 km, and shrubs (47%) and trees (21%) within 80 km.

3 km
247 m
16 km
710 m
80 km
813 m
treesshrubsgrasslandcroplandartificial surfaces
October weather nearby: Igaporã 30 km · Tanque Novo 49 km · Bom Jesus da Lapa 65 km · Serra do Ramalho 70 km · Guanambi 70 km · Macaúbas 71 km · Caetité 72 km · Palmas de Monte Alto 77 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 Riacho de Santana (-13.6092°, -42.9389°, elevation 626 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).