Boca do Acre in Winter
In winter (June, July and August), Boca do Acre sees average daytime highs around 30°C and overnight lows near 21°C, with 131 mm of rain over about 26 wet days across the season. It is the 2nd-warmest season and the driest season of the year.
Over the season highs climb from about 29°C in early June to 32°C by late August. The sky is clear or mostly clear about 47% of the time across winter, and the air most often feels oppressive.
Winter is Boca do Acre's best season of the year to visit on our travel score. For the whole year in context, see Boca do Acre's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 131 mm
- 26 wet days
- Avg wind
- 5 km/h
- Travel score
- 5.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Boca do Acre in Winter
Over the season highs climb from about 29°C in early June to 32°C by late August.
A typical winter day in Boca do Acre reaches about 30°C and drops to 21°C overnight. The warmest of the three months is August, the coolest July.
How winter really feels in Boca do Acre
Once humidity and wind are folded in, winter brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Boca do Acre weather by month
How the three winter 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 | 30° / 23° | 268 | 27.9 | 12.5 | 2.8 |
| Feb | 30° / 23° | 265 | 25.6 | 12.3 | 2.8 |
| Mar | 30° / 23° | 274 | 28.5 | 12.1 | 2.7 |
| Apr | 30° / 23° | 198 | 25 | 11.8 | 3.0 |
| May | 30° / 22° | 117 | 19.6 | 11.6 | 3.9 |
| Jun | 30° / 22° | 49 | 10.5 | 11.5 | 5.1 |
| Jul | 30° / 21° | 33 | 6.3 | 11.5 | 5.6 |
| Aug | 31° / 22° | 50 | 8.7 | 11.7 | 4.6 |
| Sep | 32° / 23° | 98 | 15.5 | 11.9 | 3.5 |
| Oct | 32° / 23° | 162 | 21.9 | 12.2 | 3.0 |
| Nov | 31° / 23° | 217 | 24.5 | 12.4 | 2.8 |
| Dec | 30° / 23° | 268 | 27.8 | 12.5 | 2.7 |
Cloud cover in Winter
The sky is clear or mostly clear about 47% of the time across winter.
Chance of precipitation in Winter
Boca do Acre gets around 131 mm of rain over 26 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 5 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 30 min in early June to 11 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.8 kWh/m².
Hazard calendar for Boca do Acre
None of Boca do Acre's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Boca do Acre's rainy season runs October–April, when most of the year's rain falls.
Is winter a good time to visit Boca do Acre?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Boca do Acre for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Boca do Acre in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Boca do Acre sees daytime highs around 30°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 26 days see rain.
UV index in Boca do Acre in Winter
Clear-sky midday UV across winter averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Boca do Acre peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 9 at about 5 (moderate).
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 | 15 | 13 | 11 | 9 | 9 | 5 | 5 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Moderate | Moderate | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 5 | Moderate |
| Sep | 5 | Moderate |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Boca do Acre in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Boca do Acre is worst in September — around 110 µg/m³ PM2.5 (unhealthy), about 13.6× the cleanest month (June, 8 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) | 13 | 13 | 13 | 11 | 9 | 8 | 15 | 87 | 110 | 28 | 14 | 12 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Unhealthy | Unhealthy | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 13 | Moderate |
| Mar | 13 | Moderate |
| Apr | 11 | Good |
| May | 9 | Good |
| Jun | 8 | Good |
| Jul | 15 | Moderate |
| Aug | 87 | Unhealthy |
| Sep | 110 | Unhealthy |
| Oct | 28 | Moderate |
| Nov | 14 | Moderate |
| Dec | 12 | Good |
Where is Boca do Acre?
Boca do Acre sits at 8.8°S, 67.4°W, 107 m above sea level, in Brazil. The nearest listed city is Porto Acre, 94 km away.
Topography around Boca do Acre
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Boca do Acre.
Within 3 km, the terrain around Boca do Acre has only modest variations in elevation — a maximum elevation change of 76 m around an average of 118 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, only modest variations in elevation — a maximum elevation change of 140 m.
The land around Boca do Acre is covered by trees (71%) within 3 km, trees (79%) within 16 km, and trees (88%) 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 Boca do Acre (-8.7522°, -67.3978°, elevation 107 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.