Boa Vista in Summer
In summer (June, July and August), Boa Vista sees average daytime highs around 30°C and overnight lows near 23°C, with 715 mm of rain over about 76 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 15% of the time across summer, and the air most often feels oppressive.
Summer is Boa Vista's 3rd-best season to visit on our travel score. For the whole year in context, see Boa Vista's year-round climate.
- Avg daytime high
- 30°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 715 mm
- 76 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.3
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Boa Vista in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Boa Vista reaches about 30°C and drops to 23°C overnight. The warmest of the three months is August, the coolest July.
How summer really feels in Boa Vista
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Boa Vista weather by month
How the three summer months (June, July and August) 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 | 33° / 24° | 34 | 6.7 | 11.9 | 3.8 |
| Feb | 33° / 25° | 31 | 5.7 | 11.9 | 3.6 |
| Mar | 33° / 25° | 59 | 9.2 | 12 | 3.2 |
| Apr | 32° / 24° | 200 | 17.4 | 12.1 | 3.1 |
| May | 30° / 24° | 344 | 26.4 | 12.1 | 3.0 |
| Jun | 29° / 23° | 310 | 27.3 | 12.2 | 3.1 |
| Jul | 29° / 23° | 249 | 26.7 | 12.1 | 3.3 |
| Aug | 31° / 23° | 156 | 22.3 | 12.1 | 3.4 |
| Sep | 32° / 24° | 94 | 15.4 | 12 | 3.5 |
| Oct | 33° / 24° | 71 | 12.8 | 11.9 | 3.3 |
| Nov | 33° / 24° | 90 | 13.6 | 11.9 | 3.2 |
| Dec | 32° / 24° | 58 | 10.2 | 11.8 | 3.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 15% of the time across summer.
Chance of precipitation in Summer
Boa Vista gets around 715 mm of rain over 76 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early June to 12 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.3 kWh/m².
Hazard calendar for Boa Vista
In summer, Boa Vista overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Boa Vista's monsoon runs April–August, when most of the year's rain falls.
Is summer a good time to visit Boa Vista?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Boa Vista.
What to pack for Boa Vista in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Boa Vista sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 76 days see rain.
UV index in Boa Vista in Summer
Clear-sky midday UV across summer 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 Boa Vista peaks around March 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 17 at about 11 (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) | 14 | 13 | 15 | 14 | 13 | 12 | 11 | 12 | 12 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Boa Vista in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Boa Vista is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 12 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) | 15 | 19 | 23 | 22 | 15 | 13 | 12 | 12 | 12 | 13 | 13 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 19 | Moderate |
| Mar | 23 | Moderate |
| Apr | 22 | Moderate |
| May | 15 | Moderate |
| Jun | 13 | Moderate |
| Jul | 12 | Moderate |
| Aug | 12 | Good |
| Sep | 12 | Good |
| Oct | 13 | Moderate |
| Nov | 13 | Moderate |
| Dec | 13 | Moderate |
Where is Boa Vista?
Boa Vista sits at 2.8°N, 60.7°W, 82 m above sea level, in Brazil. The nearest listed city is Cantá, 25 km away.
Topography around Boa Vista
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Boa Vista.
Within 3 km, the terrain around Boa Vista has only modest variations in elevation — a maximum elevation change of 29 m around an average of 75 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, large variations in elevation — a maximum elevation change of 1,011 m.
The land around Boa Vista is covered by artificial surfaces (50%) within 3 km, grassland (67%) within 16 km, and grassland (56%) and trees (41%) 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 Boa Vista (2.8197°, -60.6733°, elevation 82 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.