Average Weather in Mertzig Luxembourg
In Mertzig, the summers are comfortable and partly cloudy and the winters are very cold, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 31°F to 72°F and is rarely below 19°F or above 83°F.
Based on the tourism score, the best time of year to visit Mertzig for warm-weather activities is from late June to late August.
The warm season lasts for 3.1 months, from June 5 to September 9, with an average daily high temperature above 65°F. The hottest day of the year is August 4, with an average high of 72°F and low of 57°F.
The cold season lasts for 3.7 months, from November 17 to March 7, with an average daily high temperature below 45°F. The coldest day of the year is February 8, with an average low of 31°F and high of 39°F.
Average High and Low Temperature
Average Hourly Temperature
In Mertzig, 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 Mertzig begins around March 30 and lasts for 6.3 months, ending around October 7. On July 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 59% of the time, and overcast or mostly cloudy 41% of the time.
The cloudier part of the year begins around October 7 and lasts for 5.7 months, ending around March 30. On November 22, the cloudiest day of the year, the sky is overcast or mostly cloudy 78% of the time, and clear, mostly clear, or partly cloudy 22% 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 Mertzig varies throughout the year.
The wetter season lasts 8.5 months, from May 8 to January 23, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 36% on June 12.
The drier season lasts 3.5 months, from January 23 to May 8. The smallest chance of a wet day is 24% on March 3.
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 36% on June 12.
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. Mertzig experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Mertzig. The most rain falls during the 31 days centered around June 5, with an average total accumulation of 2.4 inches.
The least rain falls around February 23, with an average total accumulation of 1.6 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Mertzig does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Mertzig varies extremely over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 6 minutes of daylight; the longest day is June 21, with 16 hours, 21 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:26 AM on June 16, and the latest sunrise is 3 hours, 7 minutes later at 8:33 AM on December 31. The earliest sunset is at 4:34 PM on December 12, and the latest sunset is 5 hours, 14 minutes later at 9:48 PM on June 25.
Daylight saving time (DST) is observed in Mertzig 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
The perceived humidity level in Mertzig, 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, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed in Mertzig experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.8 months, from October 15 to April 9, 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 6.2 months, from April 9 to October 15. The calmest day of the year is August 5, with an average hourly wind speed of 8.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Mertzig varies throughout the year.
The wind is most often from the south for 2.0 weeks, from January 1 to January 15 and for 2.5 months, from October 1 to December 16, with a peak percentage of 39% on October 28. The wind is most often from the west for 3.1 months, from January 15 to April 17; for 4.9 months, from May 5 to October 1; and for 2.3 weeks, from December 16 to January 1, with a peak percentage of 42% on July 7. The wind is most often from the east for 1.6 weeks, from April 24 to May 5, with a peak percentage of 27% on April 30.
Best Time of Year to Visit
To characterize how pleasant the weather is in Mertzig 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 Mertzig for general outdoor tourist activities is from late June to late August, with a peak score in the first week of August.
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 Mertzig for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.
The growing season in Mertzig typically lasts for 7.0 months (213 days), from around April 8 to around November 7, rarely starting before March 14 or after April 29, and rarely ending before October 17 or after December 4.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Mertzig should appear around April 28, only rarely appearing before April 13 or after May 14.
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 3 to August 19, 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 3.7 months, from October 27 to February 18, with an average daily incident shortwave energy per square meter below 1.8 kWh. The darkest day of the year is December 26, with an average of 0.7 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Mertzig are 49.834 deg latitude, 6.008 deg longitude, and 1,171 ft elevation.
The topography within 2 miles of Mertzig contains only modest variations in elevation, with a maximum elevation change of 472 feet and an average elevation above sea level of 1,168 feet. Within 10 miles contains only modest variations in elevation (1,211 feet). Within 50 miles contains very significant variations in elevation (2,375 feet).
The area within 2 miles of Mertzig is covered by grassland (36%), trees (31%), and cropland (28%), within 10 miles by trees (45%) and cropland (35%), and within 50 miles by trees (42%) and cropland (30%).
This report illustrates the typical weather in Mertzig, 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 Mertzig.
For each station, the records are corrected for the elevation difference between that station and Mertzig 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 Mertzig is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Mertzig and a given station.
The stations contributing to this reconstruction are: Luxembourg Findel Airport (45%, 27 kilometers, southeast); Saint-Hubert Air Base (16%, 49 kilometers, northwest); Spangdahlem Air Base (18%, 52 kilometers, east); Elsenborn-Butgenbach Air Base (10%, 72 kilometers, north); and Spa-La Sauvenière Airport (10%, 73 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .