The climate of Boa Vista
Located in the heart of the Amazon, the city of
Boa Vista in
Brazil experiences a predominately Am climate, according to the Köppen Climate classification. A key characteristic of this tropical monsoon climate is high temperatures and significant rainfall all through the year.
Throughout the twelve months, the city experiences a narrow range of temperature variation, with average highs oscillating between 29.8°C (85.6°F) and 34.7°C (94.5°F), while the lows hardly fall below 22.1°C (71.8°F), reaching up to 24.9°C (76.8°F). Relative humidity values remain in the moderate range, recorded between 57% and 84%.
When it comes to precipitations, Boa Vista experiences a pronounced pattern: the drier months, with rainfall around 19mm (0.75") to 42mm (1.65"), typically happen between
December to
March, while
April to
November presents a drastic increase in rainfall, reaching the highest point at 225mm (8.86") in
June. It is interesting to observe that the number of rainfall days also peaks in June with 29.3 days, while the drier months see between 10 and 14.9 days of rain.
To complete the picture, it is worth noting that annual values of UV index sit at level 7. Despite persistent cloud cover, sunshine hours reach up to 10.2 hours in
September, while the least sunlit months are June to
July, dipping to 7.9 hours. Wind speed displays a consistent pattern, average values residing between 5.5km/h (3.4mph) and 13km/h (8.1mph), with gusts peaking at 18.5km/h (11.5mph).
The best time to visit Boa Vista
Boa Vista’s best visiting period would be during the drier months between
December and
March. This time of the year, visitors can enjoy pleasant temperatures, fewer rainy days and more sunshine hours. The UV index remains at level 7, therefore, ensuring sun protection during outdoor activities remains crucial.
The worst time to visit Boa Vista
The wettest period in
Boa Vista, from
April to
November, might not be the most favorable time for a visit. This period is characterized by high humidity, reduced visibility due to increased rainfall and fewer sunshine hours.
Spring weather in Boa Vista
Spring in
Boa Vista corresponds to
September through
November. Average high and low temperatures during this period hover between 30°C (86°F) to 34°C (93.2°F) and 23.1°C (73.6°F) to 24.2°C (75.6°F), respectively. Rainfall starts to increase from 89mm (3.5") in September to 76mm (2.99") in November, and relative humidity ranges from 68% to 72%.
Summer weather in Boa Vista
The summer months of
December through
February in
Boa Vista feature high temperatures, remaining approximately between 33.8°C (92.8°F) and 34°C (93.2°F). Nights typically cool down to between 24.3°C (75.7°F) and 24.6°C (76.3°F). Rainfall is lowest during this period, falling between 19mm (0.75") and 29mm (1.14"), with between 10 and 11.9 rainfall days.
Autumn weather in Boa Vista
In Autumn (
March through
May),
Boa Vista temperatures start to decrease slightly, with high temperatures averaging from 30.8°C (87.4°F) to 33.1°C (91.6°F), and low temperatures resting between 22.7°C (72.9°F) and 24.3°C (75.7°F). Rainfall picks up significantly this season, peaking at 215mm (8.46") in May. This period also sees a sharp increase in relative humidity and a drop in sunshine hours.
Winter weather in Boa Vista
The Winter season from
June to
August in
Boa Vista is dominated by high rainfall, with amounts peaking at 225mm (8.86"). High temperatures range between 29.8°C (85.6°F) and 30°C (86°F) and low temperatures, from 22.1°C (71.8°F) to 23°C (73.4°F). During this period, the city witnesses its highest relative humidity at 84%. The UV index drops to 6, the lowest point of the year. Despite lesser sunshine hours, the weather remains tropical and warm.
Weather in January
Boa Vista's New Year begins with moderately high temperatures, as it observed in
January. As one of the hotter months, the highest temperature reaches up to 33.8°C (92.8°F) and the city experiences humidity of 59%. Notably, there's a moderate level of rainfall at 19mm (0.75").
Weather in January » Weather in February
Moving into
February, the weather in
Boa Vista remains fairly consistent. With a slight increase in rainfall, the city experiences a visible change in the weather. The highest temperature rises to 34°C (93.2°F) along with a small increase in the cloud coverage, standing at 35%.
Weather in February »Weather in March
March in
Boa Vista shows signs of the upcoming wet season. There's also a slight surge of heat in this month, with the highest temperature reaching 34.7°C (94.5°F). With increased rainfall and humidity, the city experiences its first significant weather shift of the year.
Weather in March »
Weather in April
April signifies a pivotal shift for
Boa Vista weather patterns. It ushers in the peak of the rainfall season, with precipitation climbing dramatically up to 85mm (3.35"). The higher amount of rain also impacts the visibility, reducing it to 9km (5.6mi).
Weather in April » Weather in May
May weather in
Boa Vista is marked by the highest level of rainfall in the year, skyrocketing to 215mm (8.46"). This heavy rainfall lends a substantially cooler feel to the city, making it one of the most humid months. Despite the reduced sunshine hours, daylight remains fairly constant.
Weather in May » Weather in June
June demonstrates a continuation of the wet season in
Boa Vista, marked by heavy rains and lower temperatures. While the rainfall dips slightly down to 225mm (8.86"), the reduced wind gusts complement this humid period. The cooler temperatures go hand in hand with higher pressure levels.
Weather in June »
Weather in July
Boa Vista's weather takes a slight turn in
July. Although rainfall remains high at 204mm (8.03"), you will notice the mercury levels pushing back up to 30°C (86°F). The lower wind gusts, which go down to 9.1km/h (5.7mph), signpost the calming of the heavy rain period.
Weather in July » Weather in August
August brings a more visually clear weather pattern to
Boa Vista. Rainfall drops to a lower 137mm (5.39"), and the humidity decreases, creating a more temperate atmosphere. Even though the temperature rises to 31.5°C (88.7°F), the cooler low wind speeds offer balance.
Weather in August » Weather in September
Shifting into
September,
Boa Vista's weather pattern continues to maintain a balanced phase. With rainfall reducing significantly to 89mm (3.5"), the city welcomes more sunshine hours up to 10.2 hours per day. The predominant warmth still lingers, but cooler winds signify the onset of the dry season.
Weather in September »
Weather in October
The weather during
October continues to stabilize in
Boa Vista. The dry season takes full effect with rainfall down to only 71mm (2.8"). Respectable high temperatures persist, but the wind speeds give a cooler sensation. The decrease in rainfall also corresponds with higher visibility, making the city a breathtaking sight.
Weather in October »Weather in November
Come
November,
Boa Vista's weather patterns start transitioning back to its hotter trends. With a lower rainfall of 76mm (2.99"), the city experiences a drier spell. The return of hotter weather can be seen with a resurgence of temperatures near the 33.7°C (92.7°F) mark.
Weather in November »Weather in December
Closing out the year,
December brings a warm, moderate climate to
Boa Vista. The temperature reaches up to 33.2°C (91.8°F) which makes for a warm end of the year. An increase in wind speed back to 11.1km/h (6.9mph) signifies a return to normal climatic conditions.
Weather in December » [Resources]