Country Overview For Burundi
The climate in Burundi is typically equatorial; high plateau with considerable altitude variation (772 m to 2,670 m above sea level); average annual temperature varies with altitude from 23 to 17 degrees centigrade but is generally moderate as the average altitude is about 1,700 m; average annual rainfall is about 150 cm; two wet seasons (February to May and September to November), and two dry seasons (June to August and December to January). The terrain: hilly and mountainous, dropping to a plateau in east, some plains. For Bujumbura in January the daily average maximum temperatures is 30°C with the average minimum 17°C, while in June the average maximum is 28°C with a minimum of 17°C. The wettest month for Bujumbura is May with an average of 205.6mm of precipitation falling while the driest month is July with 61.1mm falling.
HISTORICAL MONTHLY AVERAGES FOR SEPTEMBER
The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Muhinga.
Throughout the month of September daytime temperatures will generally reach highs of around 30°C that's about 86°F. At night the average minimum temperature drops down to around 17°C, that's 62°F.
In recent times the highest recorded temperature in September has been 39°C that's 101°F, with the lowest recorded temperature 9°C, about 48°F.
The average daily relative humidity for September is around 66%.
The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.
Comfort Levels: Given average maximum temperatures and humidity levels caution is advised. Fatigue is possible with prolonged exposure and/or physical activity for those in high risk groups of possible heat disorders (see heat index for more information).
The average monthly amount of precipitation has been recorded at around 81 mm, that's 3 inches. Throughout the month you can expect to see rain or drizzle falling on 11 days of the month.
Estimated Hours of Sunshine per Day
We calculate sunshine hours per day using our past forecast data. For September expect the sun to shine for an average of 10 hours per day. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. the average number of hours the sun is actually out and shining. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual.
The average daily wind speed in September has been around 10 km/h, that’s the equivalent to about 6 mph, or 5 knots. In recent years the maximum sustained wind speed has reached 87 km/h, that’s the equivalent of around 54 mph, or 47 knots.
On average the month of September is not affected by foggy conditions.
YEARLY TRENDS: WEATHER AVERAGES & EXTREMES
The following charts show yearly weather trends with information on monthly weather averages and extremes.
The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.
The chart below plots the average monthly precipitation amount.
The chart below plots the average number of days in any month that you can expect to see rain falling.
The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.