São Sebastião da Boa Vista in Fall
In fall (March, April and May), São Sebastião da Boa Vista sees average daytime highs around 30°C and overnight lows near 24°C, with 1157 mm of rain over about 88 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 6% of the time across fall, and the air most often feels miserable.
Fall is São Sebastião da Boa Vista's weakest season of the year to visit on our travel score. São Sebastião da Boa Vista has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see São Sebastião da Boa Vista's year-round climate.
- Avg daytime high
- 30°C
- coldest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 1157 mm
- 88 wet days
- Avg wind
- 7 km/h
- Travel score
- 2.7
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in São Sebastião da Boa Vista in Fall
Across fall, daytime highs hold fairly steady around 30°C.
A typical fall day in São Sebastião da Boa Vista reaches about 30°C and drops to 24°C overnight. The warmest of the three months is May, the coolest March.
How fall really feels in São Sebastião da Boa Vista
Once humidity and wind are folded in, fall brings about 92 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.
São Sebastião da Boa Vista 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 | 30° / 24° | 261 | 27.7 | 12.1 | 2.8 |
| Feb | 30° / 24° | 349 | 26.8 | 12.1 | 2.7 |
| Mar | 30° / 24° | 443 | 30.4 | 12 | 2.6 |
| Apr | 30° / 24° | 417 | 29.4 | 12 | 2.6 |
| May | 31° / 25° | 298 | 27.8 | 11.9 | 2.8 |
| Jun | 31° / 24° | 132 | 20.4 | 11.9 | 3.4 |
| Jul | 31° / 24° | 76 | 15.3 | 11.9 | 4.0 |
| Aug | 32° / 25° | 34 | 8.3 | 11.9 | 4.3 |
| Sep | 32° / 25° | 18 | 4.5 | 12 | 4.4 |
| Oct | 33° / 25° | 20 | 4.9 | 12 | 4.2 |
| Nov | 32° / 25° | 43 | 7.3 | 12.1 | 4.0 |
| Dec | 32° / 25° | 114 | 17 | 12.1 | 3.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 6% of the time across fall.
Chance of precipitation in Fall
São Sebastião da Boa Vista gets around 1157 mm of rain over 88 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels miserable — 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 hours in early March to 11 h 54 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 4.6 kWh/m².
Hazard calendar for São Sebastião da Boa Vista
In fall, São Sebastião da Boa Vista overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São Sebastião da Boa Vista's monsoon runs January–May, when most of the year's rain falls.
Is fall a good time to visit São Sebastião da Boa Vista?
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 weaker month for outdoor sightseeing in São Sebastião da Boa Vista.
What to pack for São Sebastião da Boa Vista in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, São Sebastião da Boa Vista sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 88 days see rain.
UV index in São Sebastião da Boa Vista in Fall
Clear-sky midday UV across fall averages 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 São Sebastião da Boa Vista peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (extreme).
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) | 13 | 15 | 15 | 14 | 12 | 10 | 10 | 10 | 12 | 12 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 10 | Extreme |
Air quality in São Sebastião da Boa Vista 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 São Sebastião da Boa Vista is worst in February — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (June, 9 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) | 17 | 19 | 19 | 16 | 11 | 9 | 9 | 11 | 13 | 16 | 16 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 19 | Moderate |
| Mar | 19 | Moderate |
| Apr | 16 | Moderate |
| May | 11 | Good |
| Jun | 9 | Good |
| Jul | 9 | Good |
| Aug | 11 | Good |
| Sep | 13 | Moderate |
| Oct | 16 | Moderate |
| Nov | 16 | Moderate |
| Dec | 15 | Moderate |
Where is São Sebastião da Boa Vista?
São Sebastião da Boa Vista sits at 1.7°S, 49.5°W, 5 m above sea level, in Brazil. The nearest listed city is Limoeiro do Ajuru, 26 km away.
Topography around São Sebastião da Boa Vista
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Sebastião da Boa Vista.
Within 3 km, the terrain around São Sebastião da Boa Vista has only modest variations in elevation — a maximum elevation change of 25 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 29 m; within 80 km, only modest variations in elevation — a maximum elevation change of 40 m.
The land around São Sebastião da Boa Vista is covered by trees (60%) and water (37%) within 3 km, trees (64%) and water (33%) within 16 km, and trees (71%) 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 São Sebastião da Boa Vista (-1.7146°, -49.5315°, elevation 5 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.