Average Weather in April in Grindelwald Switzerland
Daily low temperatures increase by 6°F, from 24°F to 30°F, rarely falling below 17°F or exceeding 36°F.
For reference, on August 4, the hottest day of the year, temperatures in Grindelwald typically range from 45°F to 62°F, while on January 12, the coldest day of the year, they range from 14°F to 25°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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 April
The month of April in Grindelwald experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 56% to 61%.
The clearest day of the month is April 7, with clear, mostly clear, or partly cloudy conditions 45% of the time.
For reference, on May 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 60%.
Cloud Cover Categories in April
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Grindelwald, the chance of a wet day over the course of April is gradually increasing, starting the month at 34% and ending it at 37%.
For reference, the year's highest daily chance of a wet day is 48% on May 26, and its lowest chance is 27% on March 5.
Over the course of April in Grindelwald, the chance of a day with only rain increases from 9% to 24%, the chance of a day with mixed snow and rain decreases from 13% to 9%, and the chance of a day with only snow decreases from 12% to 5%.
Probability of Precipitation in April
The average sliding 31-day rainfall during April in Grindelwald is rapidly increasing, starting the month at 1.2 inches, when it rarely exceeds 2.3 inches or falls below 0.3 inches, and ending the month at 2.6 inches, when it rarely exceeds 4.5 inches or falls below 0.8 inches.
Average Monthly Rainfall in April
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during April in Grindelwald is decreasing, starting the month at 1.4 inches, when it rarely exceeds 2.8 inches or falls below 0.3 inches, and ending the month at 0.8 inches, when it rarely exceeds 1.9 inches.
Average Monthly Liquid-Equivalent Snowfall in April
Over the course of April in Grindelwald, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 32 minutes, implying an average daily increase of 3 minutes, 10 seconds, and weekly increase of 22 minutes, 7 seconds.
The shortest day of the month is April 1, with 12 hours, 50 minutes of daylight and the longest day is April 30, with 14 hours, 21 minutes of daylight.
Hours of Daylight and Twilight in April
The latest sunrise of the month in Grindelwald is 7:07 AM on April 1 and the earliest sunrise is 52 minutes earlier at 6:14 AM on April 30.
The earliest sunset is 7:56 PM on April 1 and the latest sunset is 39 minutes later at 8:36 PM on April 30.
Daylight saving time is observed in Grindelwald during 2017, but it neither starts nor ends during April, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:34 AM and sets 15 hours, 51 minutes later, at 9:24 PM, while on December 21, the shortest day of the year, it rises at 8:09 AM and sets 8 hours, 34 minutes later, at 4:42 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in April
The chance that a given day will be muggy in Grindelwald is essentially constant during April, remaining around 0% throughout.
Humidity Comfort Levels in April
The average hourly wind speed in Grindelwald is essentially constant during April, remaining within 0.2 miles per hour of 4.8 miles per hour throughout.
For reference, on January 26, the windiest day of the year, the daily average wind speed is 5.2 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.
Average Wind Speed in April
Wind Direction in April
The growing season in Grindelwald typically lasts for 3.3 months (102 days), from around June 2 to around September 12, rarely starting before May 14 or after June 23, and rarely ending before August 22 or after October 5.
The month of April in Grindelwald is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in April
The average accumulated growing degree days in Grindelwald are essentially constant during April, remaining within 3°F of 4°F throughout.
Growing Degree Days in April
The average daily incident shortwave solar energy in Grindelwald is gradually increasing during April, rising by 0.9 kWh, from 4.8 kWh to 5.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Grindelwald are 46.624 deg latitude, 8.036 deg longitude, and 5,387 ft elevation.
The topography within 2 miles of Grindelwald contains extreme variations in elevation, with a maximum elevation change of 6,171 feet and an average elevation above sea level of 4,467 feet. Within 10 miles also contains extreme variations in elevation (12,067 feet). Within 50 miles also contains extreme variations in elevation (14,419 feet).
The area within 2 miles of Grindelwald is covered by trees (43%), grassland (32%), artificial surfaces (12%), and bare soil (10%), within 10 miles by snow and glaciers (27%) and grassland (23%), and within 50 miles by trees (31%) and grassland (22%).
This report illustrates the typical weather in Grindelwald 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Grindelwald.
For each station, the records are corrected for the elevation difference between that station and Grindelwald 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 Grindelwald is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Grindelwald and a given station.
The stations contributing to this reconstruction are: Interlaken Airport (29%, 14 kilometers, northeast); Bern-Belp Airport (23%, 52 kilometers, northwest); Sion Airport (21%, 71 kilometers, southwest); Pian Rosa (11%, 81 kilometers, south); and Locarno Airport (15%, 82 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .