Boa Vista in Winter
In winter (December, January and February), Boa Vista sees average daytime highs around 33°C and overnight lows near 24°C, with 123 mm of rain over about 23 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 33°C. The sky is clear or mostly clear about 13% of the time across winter, and the air most often feels muggy.
Winter is Boa Vista's best season of the year to visit on our travel score. For the whole year in context, see Boa Vista's year-round climate.
- Avg daytime high
- 33°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 123 mm
- 23 wet days
- Avg wind
- 11 km/h
- Travel score
- 3.7
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Boa Vista in Winter
Across winter, daytime highs hold fairly steady around 33°C.
A typical winter day in Boa Vista reaches about 33°C and drops to 24°C overnight. The warmest of the three months is February, the coolest December.
How winter really feels in Boa Vista
Once humidity and wind are folded in, winter brings about 90 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.
Boa Vista weather by month
How the three winter months (December, January and February) 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 Winter
The sky is clear or mostly clear about 13% of the time across winter.
Chance of precipitation in Winter
Boa Vista gets around 123 mm of rain over 23 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 48 min in early December to 11 h 54 min by late February. 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 5.2 kWh/m².
Hazard calendar for Boa Vista
None of Boa Vista's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Boa Vista's monsoon runs April–August, when most of the year's rain falls.
Is winter a good time to visit Boa Vista?
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 weaker month for outdoor sightseeing in Boa Vista. The water and warmth also suit a beach or pool day.
What to pack for Boa Vista in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Boa Vista sees daytime highs around 33°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 23 days see rain.
UV index in Boa Vista in Winter
Clear-sky midday UV across winter 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 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 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 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.