Boa Vista weather in December
Temperature, rain and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Fair
Best time to visit: December – February
What is the weather like in Boa Vista in December?
In December, Boa Vista is hot: daytime highs average 33 °C, and even at night it stays warm at around 24 °C. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 63 mm in total. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a so-so month for a holiday in Boa Vista – and yet one of the best months here.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 34 | 42 | 45 |
| Day | 33° | 33° | 33° |
| Night | 24° | 24° | 24° |
| Sun | 6.5 h | 6.4 h | 6.3 h |
| Rain days | 13 | 11 | 8 |
More details for December
- Daylight
- 11 h 58 min05:59 – 17:57
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 30 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 29 days30 °C or moreAll months
- Time zone
- UTC−4offset from UTC
How the score comes together
- Temperatureweight 50 %30 %
- Sunshineweight 20 %57 %
- Few rainy daysweight 30 %53 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Boa Vista in December: quick answers
Is Boa Vista hot in December?
Yes. In December, Boa Vista is hot: daytime highs average 33 °C and nights stay around 24 °C. On about 29 days the thermometer climbs to 30 °C or more.
Does it rain much in Boa Vista in December?
Rain is frequent, with about 11 rainy days and 63 mm in total.
Boa Vista month by month
The whole year in Boa VistaAll destinations: BrazilWhere to go in December
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences