Average Weather in Bernes-sur-Oise France
In Bernes-sur-Oise, the summers are short, comfortable, and partly cloudy and the winters are long, very cold, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 35°F to 77°F and is rarely below 24°F or above 88°F.
Based on the tourism score, the best time of year to visit Bernes-sur-Oise for warm-weather activities is from mid June to mid September.
The warm season lasts for 2.9 months, from June 14 to September 10, with an average daily high temperature above 70°F. The hottest day of the year is August 4, with an average high of 77°F and low of 57°F.
The cool season lasts for 3.7 months, from November 16 to March 8, with an average daily high temperature below 51°F. The coldest day of the year is February 8, with an average low of 35°F and high of 45°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
In Bernes-sur-Oise, 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 Bernes-sur-Oise begins around May 5 and lasts for 5.2 months, ending around October 12. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 62% of the time, and overcast or mostly cloudy 38% of the time.
The cloudier part of the year begins around October 12 and lasts for 6.8 months, ending around May 5. On December 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% 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 Bernes-sur-Oise varies throughout the year.
The wetter season lasts 8.7 months, from September 24 to June 14, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 31% on December 22.
The drier season lasts 3.3 months, from June 14 to September 24. The smallest chance of a wet day is 21% on August 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 30% on May 23.
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. Bernes-sur-Oise experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Bernes-sur-Oise. The most rain falls during the 31 days centered around December 16, with an average total accumulation of 1.9 inches.
The least rain falls around March 4, with an average total accumulation of 1.2 inches.
Average Monthly Rainfall
The length of the day in Bernes-sur-Oise varies extremely over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 12 minutes of daylight; the longest day is June 21, with 16 hours, 14 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:45 AM on June 17, and the latest sunrise is 3 hours, 0 minutes later at 8:45 AM on January 1. The earliest sunset is at 4:52 PM on December 11, and the latest sunset is 5 hours, 7 minutes later at 9:59 PM on June 25.
Daylight saving time (DST) is observed in Bernes-sur-Oise during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Bernes-sur-Oise, 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 2% of 2% throughout.
Humidity Comfort Levels
The average hourly wind speed in Bernes-sur-Oise experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 6.0 months, from October 13 to April 15, with average wind speeds of more than 9.9 miles per hour. The windiest day of the year is January 17, with an average hourly wind speed of 11.9 miles per hour.
The calmer time of year lasts for 6.0 months, from April 15 to October 13. The calmest day of the year is August 8, with an average hourly wind speed of 7.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Bernes-sur-Oise varies throughout the year.
The wind is most often from the west for 2.2 months, from February 1 to April 6 and for 4.3 months, from May 20 to September 29, with a peak percentage of 43% on July 6. The wind is most often from the north for 1.5 months, from April 6 to May 20, with a peak percentage of 31% on April 21. The wind is most often from the south for 4.0 months, from September 29 to February 1, with a peak percentage of 40% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Bernes-sur-Oise 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 Bernes-sur-Oise 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 Bernes-sur-Oise for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.
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.
The growing season in Bernes-sur-Oise typically lasts for 7.1 months (217 days), from around April 5 to around November 8, rarely starting before March 1 or after April 26, and rarely ending before October 17 or after December 11.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Bernes-sur-Oise should appear around April 10, only rarely appearing before March 24 or after April 27.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.5 months, from May 4 to August 20, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is June 26, with an average of 6.5 kWh.
The darker period of the year lasts for 3.6 months, from October 28 to February 17, with an average daily incident shortwave energy per square meter below 1.9 kWh. The darkest day of the year is December 27, with an average of 0.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Bernes-sur-Oise are 49.161 deg latitude, 2.300 deg longitude, and 151 ft elevation.
The topography within 2 miles of Bernes-sur-Oise contains only modest variations in elevation, with a maximum elevation change of 377 feet and an average elevation above sea level of 140 feet. Within 10 miles contains only modest variations in elevation (692 feet). Within 50 miles contains significant variations in elevation (892 feet).
The area within 2 miles of Bernes-sur-Oise is covered by cropland (61%) and artificial surfaces (31%), within 10 miles by cropland (50%) and trees (29%), and within 50 miles by cropland (56%) and trees (22%).
This report illustrates the typical weather in Bernes-sur-Oise, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Bernes-sur-Oise.
For each station, the records are corrected for the elevation difference between that station and Bernes-sur-Oise 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 Bernes-sur-Oise is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bernes-sur-Oise and a given station.
The stations contributing to this reconstruction are: Creil (27%, 19 kilometers, northeast); Pontoise – Cormeilles Aerodrom (24%, 20 kilometers, west); Paris–Le Bourget Airport (20%, 24 kilometers, southeast); Paris Charles de Gaulle Airport (18%, 25 kilometers, southeast); and Beauvais–Tillé Airport (11%, 35 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .