Climate Overview
The climate in Boa Vista is hot. The average annual temperature is 28°C and approximately 1911mm of precipitation falls per year. May is the wettest month, receiving around 403mm of rainfall. Boa Vista sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Boa Vista sees moderate temperature variation throughout the year, ranging from 23°C to 34°C. The warmest month is March, when average highs reach 34°C and the mean temperature sits around 30°C. July is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows.
Precipitation
Boa Vista is a fairly wet location, receiving approximately 1911mm of precipitation annually, which averages out to around 159mm per month. The wettest month is May, averaging 403mm of rainfall. June and July also tend to see above-average precipitation. The driest month is January, with just 27mm. That's 376mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Boa Vista is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 3km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 3km/h in winter, 3km/h in spring, 1km/h in summer, 2km/h in autumn.
Seasons
91 days until Autumn
It is currently summer in Boa Vista, which began on June 21, 2026. Boa Vista sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 34°C, while the coldest stretch bottoms out in July near 23°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.
Spring
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 616mm across the season with a monthly average of 205mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 832mm across the season with a monthly average of 277mm. Winds are generally light, averaging 1km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 34°C. Rainfall is heavy, totalling around 332mm across the season with a monthly average of 111mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 34°C. Rainfall is relatively light, with around 130mm over the season and a monthly average of 43mm. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Boa Vista based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
