Castilho in Fall
In fall (March, April and May), Castilho sees average daytime highs around 30°C and overnight lows near 21°C, with 265 mm of rain over about 31 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 31°C in early March to 27°C by late May. The sky is clear or mostly clear about 44% of the time across fall, and the air most often feels oppressive.
Fall is Castilho's 2nd-best season to visit on our travel score. For the whole year in context, see Castilho's year-round climate.
- Avg daytime high
- 30°C
- 3rd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 265 mm
- 31 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.3
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Castilho in Fall
Over the season highs ease from about 31°C in early March to 27°C by late May.
A typical fall day in Castilho reaches about 30°C and drops to 21°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Castilho
Once humidity and wind are folded in, fall brings about 49 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Castilho 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 | 31° / 23° | 230 | 21.9 | 13.1 | 3.2 |
| Feb | 31° / 23° | 188 | 19.2 | 12.7 | 3.2 |
| Mar | 31° / 23° | 157 | 17.8 | 12.1 | 3.7 |
| Apr | 30° / 21° | 61 | 7.9 | 11.5 | 5.2 |
| May | 28° / 18° | 47 | 5.7 | 11 | 7.0 |
| Jun | 28° / 17° | 26 | 3.5 | 10.8 | 7.7 |
| Jul | 28° / 17° | 15 | 2.2 | 10.9 | 7.5 |
| Aug | 31° / 18° | 21 | 2.9 | 11.3 | 5.8 |
| Sep | 32° / 20° | 59 | 6.8 | 11.9 | 4.5 |
| Oct | 32° / 22° | 106 | 12.4 | 12.5 | 3.7 |
| Nov | 32° / 23° | 141 | 15.5 | 13 | 3.5 |
| Dec | 31° / 23° | 189 | 20.6 | 13.2 | 3.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 44% of the time across fall.
Chance of precipitation in Fall
Castilho gets around 265 mm of rain over 31 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 8 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 24 min in early March to 10 h 48 min 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 4.9 kWh/m².
Hazard calendar for Castilho
In fall, Castilho overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Castilho's monsoon runs October–March, when most of the year's rain falls.
Is fall a good time to visit Castilho?
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 Castilho for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Castilho in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Castilho sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 31 days see rain.
UV index in Castilho in Fall
Clear-sky midday UV across fall averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Castilho peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (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 | 13 | 10 | 8 | 7 | 7 | 8 | 7 | 10 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 10 | Extreme |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in Castilho in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Castilho is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (July, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 7 | 7 | 6 | 6 | 7 | 6 | 6 | 10 | 20 | 12 | 6 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 6 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 6 | Good |
| Aug | 10 | Good |
| Sep | 20 | Moderate |
| Oct | 12 | Moderate |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Castilho?
Castilho sits at 20.9°S, 51.5°W, 382 m above sea level, in Brazil. The nearest listed city is Andradina, 12 km away.
Topography around Castilho
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castilho.
Within 3 km, the terrain around Castilho has only modest variations in elevation — a maximum elevation change of 115 m around an average of 368 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.
The land around Castilho is covered by cropland (52%) and grassland (31%) within 3 km, cropland (50%) and grassland (32%) within 16 km, and cropland (37%), grassland (31%) and trees (24%) 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 Castilho (-20.8722°, -51.4875°, elevation 382 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.