Serro weather in October

In October, Serro sees average daytime highs of 26°C and overnight lows near 16°C, with 117 mm of rain across 12.1 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 6th-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 26% of the time in October, and the air most often feels comfortable.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 42 min by month's end. Set against the rest of the year, October is Serro's 6th-clearest and 2nd-windiest month. For the whole year in context, see Serro's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
16°
6th coldest
Rainfall
117 mm
12.1 wet days
Daylight
12 h 24 min
6:26 AM – 6:51 PM
Cloud cover
62%
6th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.76 kWh/m²
Travel score
6.3
out of 10

Serro is human 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

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

A typical October day in Serro reaches about 26°C in the afternoon and slips back to 16°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 30°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42615
52616
62616
72616
82616
92616
102616
112616
122616
132616
142716
152716
162716
172716
182716
192716
202716
212616
222616
232616
242616
252616
262617
272617
282617
292617
302617
312617

Serro weather by month

How October compares with the rest of the year at a glance. October is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°22417135.3
Feb27° / 18°15513.312.65.7
Mar26° / 17°17816.712.15.5
Apr25° / 16°9012.111.66.4
May24° / 14°346.811.17.4
Jun23° / 13°112.710.98.0
Jul23° / 12°82.2118.2
Aug24° / 12°122.911.48.4
Sep26° / 14°486.711.97.4
Oct26° / 16°11712.112.46.3
Nov25° / 17°25619.912.94.9
Dec26° / 18°30921.613.14.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44852
54852
64852
74852
84951
94951
104951
114951
124852
134852
144852
154852
164753
174654
184654
194456
204357
214258
224060
233961
243862
253664
263466
273367
283268
293070
303070
312971

Chance of precipitation in October

Any precipitation

Serro gets around 117 mm of rain over 12.1 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 39% and peaks near 54% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
136
236
336
435
535
634
734
833
933
1033
1133
1233
1332
1433
1533
1633
1734
1835
1936
2037
2139
2241
2343
2444
2546
2647
2749
2850
2951
3053
3154

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12538334
22438334
32438344
42438344
52438344
62438335
72439335
82439325
92439325
102439315
112440306
122440306
132441296
142342296
152242297
162143297
172043297
181943298
191843308
201743319
2115423310
2214423410
2313413611
2411403811
2510393912
269384112
278374212
288354413
297344514
307334614
316314815

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over October. Sunrise moves from 6:37 AM to 6:17 AM, and sunset from 6:48 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:376:48
212.26:376:48
312.26:366:48
412.26:356:48
512.26:346:48
612.36:336:49
712.36:326:49
812.36:326:49
912.36:316:49
1012.36:306:50
1112.36:296:50
1212.46:296:50
1312.46:286:51
1412.46:276:51
1512.46:266:51
1612.46:266:51
1712.46:256:52
1812.56:246:52
1912.56:246:52
2012.56:236:53
2112.56:226:53
2212.56:226:54
2312.56:216:54
2412.66:206:54
2512.66:206:55
2612.66:196:55
2712.66:196:56
2812.66:186:56
2912.66:186:56
3012.76:176:57
3112.76:176:57

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.76 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 6.01 kWh/m² in February across the year — October's 5.76 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.4Bright
315.4Bright
Planning a trip in October

Hazard calendar for Serro

In seasonPeak

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

Serro's monsoon runs November–March, when most of the year's rain falls.

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

Is October a good time to visit Serro?

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

6.3
Sightseeing
7th-best month of the year
6.1
Beach & pool
4th-best month of the year

October is a reasonable time to visit Serro for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Serro in October

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

In October, Serro sees daytime highs around 26°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Serro in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Serro peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 12UV 15Jun 22UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul7Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Serro?

Serro sits at 18.6°S, 43.4°W, 821 m above sea level, in Brazil. The nearest listed city is Diamantina, 46 km away.

Topography around Serro

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

Within 3 km, the terrain around Serro has only modest variations in elevation — a maximum elevation change of 229 m around an average of 810 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 926 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,684 m.

The land around Serro is covered by trees (52%) and grassland (43%) within 3 km, trees (55%) and grassland (45%) within 16 km, and trees (50%) and grassland (46%) within 80 km.

3 km
229 m
16 km
926 m
80 km
1,684 m
treesshrubsgrasslandartificial surfaces
October weather nearby: Diamantina 46 km · Conceição do Mato Dentro 48 km · Guanhães 51 km · São João Evangelista 65 km · Peçanha 87 km · Itamarandiba 100 km · Jaboticatubas 108 km · Curvelo 112 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 Serro (-18.6047°, -43.3794°, elevation 821 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).