Serro in Fall
In fall (March, April and May), Serro sees average daytime highs around 25°C and overnight lows near 16°C, with 302 mm of rain over about 36 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 27°C in early March to 23°C by late May. The sky is clear or mostly clear about 21% of the time across fall, and the air most often feels humid.
Fall is Serro's 2nd-best season to visit on our travel score. For the whole year in context, see Serro's year-round climate.
- Avg daytime high
- 25°C
- 3rd-warmest season
- Avg overnight low
- 16°C
- Rainfall
- 302 mm
- 36 wet days
- Avg wind
- 7 km/h
- Travel score
- 6.4
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Serro in Fall
Over the season highs ease from about 27°C in early March to 23°C by late May.
A typical fall day in Serro reaches about 25°C and drops to 16°C overnight. The warmest of the three months is March, the coolest May.
Serro weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 18° | 224 | 17 | 13 | 5.3 |
| Feb | 27° / 18° | 155 | 13.3 | 12.6 | 5.7 |
| Mar | 26° / 17° | 178 | 16.7 | 12.1 | 5.5 |
| Apr | 25° / 16° | 90 | 12.1 | 11.6 | 6.4 |
| May | 24° / 14° | 34 | 6.8 | 11.1 | 7.4 |
| Jun | 23° / 13° | 11 | 2.7 | 10.9 | 8.0 |
| Jul | 23° / 12° | 8 | 2.2 | 11 | 8.2 |
| Aug | 24° / 12° | 12 | 2.9 | 11.4 | 8.4 |
| Sep | 26° / 14° | 48 | 6.7 | 11.9 | 7.4 |
| Oct | 26° / 16° | 117 | 12.1 | 12.4 | 6.3 |
| Nov | 25° / 17° | 256 | 19.9 | 12.9 | 4.9 |
| Dec | 26° / 18° | 309 | 21.6 | 13.1 | 4.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 21% of the time across fall.
Chance of precipitation in Fall
Serro gets around 302 mm of rain over 36 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early March to 11 hours by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.7 kWh/m².
Hazard calendar for Serro
In fall, Serro overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Serro's monsoon runs November–March, when most of the year's rain falls.
Is fall a good time to visit Serro?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Serro for sightseeing.
What to pack for Serro in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Serro sees daytime highs around 25°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 36 days see rain.
UV index in Serro in Fall
Clear-sky midday UV across fall averages around 11 (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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 15 | 14 | 11 | 8 | 7 | 7 | 9 | 10 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 9 | Very high |
| Sep | 10 | Extreme |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
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.
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
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.