Average Weather in July in Bucharest Romania
In Bucharest, the month of July is characterized by gradually rising daily high temperatures, with daily highs increasing by 3°F, from 83°F to 86°F over the course of the month, and rarely exceeding 94°F or dropping below 73°F.
Daily low temperatures increase by 2°F, from 61°F to 63°F, rarely falling below 55°F or exceeding 69°F. The highest daily average low temperature is 63°F on July 30.
For reference, on July 31, the hottest day of the year, temperatures in Bucharest typically range from 63°F to 86°F, while on January 20, the coldest day of the year, they range from 24°F to 36°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, 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 July
The month of July in Bucharest experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 22% to 16%. The lowest chance of overcast or mostly cloudy conditions is 15% on July 24.
The clearest day of the month is July 24, with clear, mostly clear, or partly cloudy conditions 85% of the time.
For reference, on December 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 85%.
Cloud Cover in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bucharest, the chance of a wet day over the course of July is rapidly decreasing, starting the month at 27% and ending it at 20%.
For reference, the year's highest daily chance of a wet day is 29% on June 11, and its lowest chance is 12% on October 30.
Probability of Precipitation in July
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during July in Bucharest is gradually decreasing, starting the month at 1.9 inches, when it rarely exceeds 4.1 inches or falls below 0.7 inches, and ending the month at 1.5 inches, when it rarely exceeds 2.9 inches or falls below 0.3 inches.
Average Monthly Rainfall in July
Over the course of July in Bucharest, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 48 minutes, implying an average daily decrease of 1 minute, 37 seconds, and weekly decrease of 11 minutes, 18 seconds.
The shortest day of the month is July 31, with 14 hours, 40 minutes of daylight and the longest day is July 1, with 15 hours, 29 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Bucharest is 5:34 AM on July 1 and the latest sunrise is 26 minutes later at 6:01 AM on July 31.
The latest sunset is 9:03 PM on July 1 and the earliest sunset is 22 minutes earlier at 8:41 PM on July 31.
Daylight saving time is observed in Bucharest during 2017, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:31 AM and sets 15 hours, 33 minutes later, at 9:03 PM, while on December 21, the shortest day of the year, it rises at 7:48 AM and sets 8 hours, 50 minutes later, at 4:38 PM.
Sunrise & Sunset with Twilight in July
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.
The chance that a given day will be muggy in Bucharest is increasing during July, rising from 14% to 22% over the course of the month.
The highest chance of a muggy day during July is 22% on July 29.
For reference, on July 29, the muggiest day of the year, there are muggy conditions 22% of the time, while on January 1, the leasy muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in July
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 Bucharest is essentially constant during July, remaining within 0.1 miles per hour of 3.3 miles per hour throughout.
For reference, on March 17, the windiest day of the year, the daily average wind speed is 4.6 miles per hour, while on July 31, the calmest day of the year, the daily average wind speed is 3.3 miles per hour.
Average Wind Speed in July
Wind Direction in July
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 in Bucharest is essentially constant during July, remaining within 0.2 kWh of 7.0 kWh throughout.
The highest average daily incident shortwave solar energy during July is 7.2 kWh on July 10.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Bucharest are 44.432 deg latitude, 26.106 deg longitude, and 266 ft elevation.
The topography within 2 miles of Bucharest contains only modest variations in elevation, with a maximum elevation change of 187 feet and an average elevation above sea level of 261 feet. Within 10 miles also contains only modest variations in elevation (269 feet). Within 50 miles contains only modest variations in elevation (2,369 feet).
The area within 2 miles of Bucharest is covered by artificial surfaces (99%), within 10 miles by cropland (52%) and artificial surfaces (35%), and within 50 miles by cropland (73%) and trees (12%).
This report illustrates the typical weather in Bucharest year round, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Bucharest.
For each station, the records are corrected for the elevation difference between that station and Bucharest 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 Bucharest is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bucharest and a given station.
The stations contributing to this reconstruction are: Bucharest Băneasa Aurel Vlaicu International Airport (95%, 8 kilometers, north); Ruse Airport (4.0%, 66 kilometers, south); and Mihail Kogălniceanu International Airport (0.8%, 190 kilometers, east).
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 .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.