Average Weather in Kayanza Burundi
The climate in Kayanza is warm and overcast. Over the course of the year, the temperature typically varies from 55°F to 78°F and is rarely below 52°F or above 83°F.
Based on the tourism score, the best time of year to visit Kayanza for warm-weather activities is from mid June to mid September.
The temperature in Kayanza varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Kayanza, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Kayanza begins around May 29 and lasts for 3.6 months, ending around September 16. On July 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 63% of the time, and overcast or mostly cloudy 37% of the time.
The cloudier part of the year begins around September 16 and lasts for 8.4 months, ending around May 29. On November 10, the cloudiest day of the year, the sky is overcast or mostly cloudy 83% of the time, and clear, mostly clear, or partly cloudy 17% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Kayanza varies very significantly throughout the year.
The wetter season lasts 7.3 months, from October 5 to May 15, with a greater than 34% chance of a given day being a wet day. The chance of a wet day peaks at 64% on November 26.
The drier season lasts 4.7 months, from May 15 to October 5. The smallest chance of a wet day is 3% on July 4.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 64% on November 26.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Kayanza experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 11 months, from July 9 to June 24, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around April 4, with an average total accumulation of 5.3 inches.
The rainless period of the year lasts for 2.3 weeks, from June 24 to July 9. The least rain falls around July 6, with an average total accumulation of 0.5 inches.
Average Monthly Rainfall
The length of the day in Kayanza does not vary substantially over the course of the year, staying within 17 minutes of 12 hours throughout. In 2018, the shortest day is June 21, with 11 hours, 57 minutes of daylight; the longest day is December 22, with 12 hours, 18 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:38 AM on November 8, and the latest sunrise is 31 minutes later at 6:09 AM on February 19. The earliest sunset is at 5:51 PM on October 28, and the latest sunset is 31 minutes later at 6:22 PM on February 5.
Daylight saving time (DST) is not observed in Kayanza during 2018.
Sunrise & Sunset with Twilight
The perceived humidity level in Kayanza, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 4% of 4% throughout.
Humidity Comfort Levels
The average hourly wind speed in Kayanza experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.4 months, from April 23 to November 3, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is August 11, with an average hourly wind speed of 6.4 miles per hour.
The calmer time of year lasts for 5.6 months, from November 3 to April 23. The calmest day of the year is January 19, with an average hourly wind speed of 3.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Kayanza varies throughout the year.
The wind is most often from the south for 2.8 months, from June 4 to August 29, with a peak percentage of 67% on July 21. The wind is most often from the east for 9.2 months, from August 29 to June 4, with a peak percentage of 47% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Kayanza throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Kayanza for general outdoor tourist activities is from mid June to mid September, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Kayanza for hot-weather activities is from late July to mid September, with a peak score in the third week of August.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
Temperatures in Kayanza are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.
Time Spent in Various Temperature Bands and the Growing Season
Growing Degree Days
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 2.3 months, from July 11 to September 21, with an average daily incident shortwave energy per square meter above 6.3 kWh. The brightest day of the year is August 16, with an average of 6.6 kWh.
The darker period of the year lasts for 2.4 months, from October 30 to January 11, with an average daily incident shortwave energy per square meter below 5.4 kWh. The darkest day of the year is November 18, with an average of 5.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Kayanza are -2.922 deg latitude, 29.629 deg longitude, and 6,142 ft elevation.
The topography within 2 miles of Kayanza contains very significant variations in elevation, with a maximum elevation change of 889 feet and an average elevation above sea level of 6,211 feet. Within 10 miles contains very significant variations in elevation (4,085 feet). Within 50 miles also contains extreme variations in elevation (7,664 feet).
The area within 2 miles of Kayanza is covered by cropland (72%), grassland (11%), and trees (11%), within 10 miles by cropland (83%), and within 50 miles by cropland (58%) and grassland (14%).
This report illustrates the typical weather in Kayanza, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There is only a single weather station, Kigali International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Kayanza.
At a distance of 120 kilometers from Kayanza, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Kayanza according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
Time zones for aiports and weather stations are provided by AskGeo.com .