Average Weather in Banja Luka Bosnia & Herzegovina
In Banja Luka, the temperature typically varies from 26°F to 82°F over the course of the year, and is rarely below 14°F or above 92°F.
The warm season lasts for 3.5 months, from May 29 to September 13, with an average daily high temperature above 73°F. The hottest day of the year is August 2, with an average high of 82°F and low of 60°F.
The cold season lasts for 3.4 months, from November 22 to March 2, with an average daily high temperature below 48°F. The coldest day of the year is January 14, with an average low of 26°F and high of 39°F.
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
The length of the day in Banja Luka varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 48 minutes of daylight; the longest day is June 21, with 15 hours, 35 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:04 AM on June 15, and the latest sunrise is 2 hours, 24 minutes later at 7:28 AM on January 2. The earliest sunset is at 4:10 PM on December 10, and the latest sunset is 4 hours, 31 minutes later at 8:41 PM on June 26.
Daylight saving time (DST) is observed in Banja Luka during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
In Banja Luka, 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 Banja Luka begins around June 7 and lasts for 3.5 months, ending around September 23. On July 31, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 78% of the time, and overcast or mostly cloudy 22% of the time.
The cloudier part of the year begins around September 23 and lasts for 8.5 months, ending around June 7. On December 7, the cloudiest day of the year, the sky is overcast or mostly cloudy 63% of the time, and clear, mostly clear, or partly cloudy 37% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Banja Luka varies throughout the year.
The wetter season lasts 9.7 months, from February 21 to December 12, with a greater than 27% chance of a given day being a wet day. The chance of a wet day peaks at 34% on June 5.
The drier season lasts 2.3 months, from December 12 to February 21. The smallest chance of a wet day is 20% on January 23.
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 34% on June 5.
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 in the year. Banja Luka experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Banja Luka. The most rain falls during the 31 days centered around September 17, with an average total accumulation of 2.9 inches.
The least rain falls around January 28, with and average total accumulation of 1.4 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day in the year. Banja Luka experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.3 months, from November 12 to March 21, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around January 5, with an average total liquid-equivalent accumulation of 0.4 inches.
The snowless period of the year lasts for 7.7 months, from March 21 to November 12. The least snow falls around July 19, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
Banja Luka experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.6 months, from June 9 to August 29, during which time the comfort level is muggy, oppressive, or miserable at least 3% of the time. The muggiest day of the year is July 28, with muggy conditions 11% of the time.
The least muggy day of the year is February 23, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.The average hourly wind speed in Banja Luka does not vary significantly over the course of the year, remaining within 0.4 miles per hour of 2.2 miles per hour throughout.
Average Wind Speed
The predominant average hourly wind direction in Banja Luka varies throughout the year.
The wind is most often from the east for 2.2 months, from January 12 to March 19 and for 1.3 months, from August 11 to September 21, with a peak percentage of 33% on October 20. The wind is most often from the south for 2.6 weeks, from March 19 to April 6; for 1.3 weeks, from April 29 to May 8; and for 3.7 months, from September 21 to January 12, with a peak percentage of 38% on November 12. The wind is most often from the north for 3.3 weeks, from April 6 to April 29 and for 3.1 months, from May 8 to August 11, with a peak percentage of 35% on July 21.
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy experiences very significant seasonal variation over the course of the year.
The brighter period of the year lasts for 3.3 months, from May 11 to August 20, with an average daily incident shortwave energy per square meter above 5.9 kWh. The brightest day of the year is July 7, with an average of 7.1 kWh.
The darker period of the year lasts for 3.6 months, from October 29 to February 16, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest day of the year is December 15, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Banja Luka are 44.778 deg latitude, 17.194 deg longitude, and 669 ft elevation (map ).
The topography within 2 miles of Banja Luka contains significant variations in elevation, with a maximum elevation change of 778 feet, and an average elevation above sea level of 600 feet. Within 10 miles contains large variations in elevation (2,703 feet). Within 50 miles contains extreme variations in elevation (6,155 feet).
The area within 2 miles of Banja Luka is covered by artificial surfaces (57%) and cropland (33%), within 10 miles by cropland (51%) and trees (43%), and within 50 miles by trees (53%) and cropland (34%).
This report illustrates the typical weather in Banja Luka, 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 are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Banja Luka.
For each station, the records are corrected for the elevation difference between that station and Banja Luka according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Banja Luka is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Banja Luka and a given station.
The stations contributing to this reconstruction are: Banja Luka International Airport (83%, 20 kilometers, northeast), Bihac (8%, 104 kilometers, west), Sarajevo Airport (4.9%, 140 kilometers, southeast), and Split Airport (4.2%, 155 kilometers, southwest).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .