Average Weather in Bjästa Sweden
In Bjästa, the summers are cool and partly cloudy and the winters are long, freezing, snowy, and mostly cloudy. Over the course of the year, the temperature typically varies from 12°F to 68°F and is rarely below -8°F or above 76°F.
Based on the tourism score, the best time of year to visit Bjästa for warm-weather activities is from early July to mid August.
The warm season lasts for 3.0 months, from June 2 to September 4, with an average daily high temperature above 59°F. The hottest day of the year is July 23, with an average high of 68°F and low of 52°F.
The cold season lasts for 3.9 months, from November 18 to March 14, with an average daily high temperature below 33°F. The coldest day of the year is February 7, with an average low of 12°F and high of 25°F.
Average High and Low Temperature
Average Hourly Temperature
In Bjästa, 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 Bjästa begins around April 18 and lasts for 5.3 months, ending around September 26. On July 18, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 52% of the time, and overcast or mostly cloudy 48% of the time.
The cloudier part of the year begins around September 26 and lasts for 6.7 months, ending around April 18. On January 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 76% of the time, and clear, mostly clear, or partly cloudy 24% 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 Bjästa varies throughout the year.
The wetter season lasts 7.9 months, from May 28 to January 24, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 31% on August 19.
The drier season lasts 4.1 months, from January 24 to May 28. The smallest chance of a wet day is 18% on February 22.
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 in Bjästa changes throughout the year.
Rain alone is the most common for 8.2 months, from March 26 to December 1. The highest chance of a day with rain alone is 31% on August 19.
Snow alone is the most common for 3.8 months, from December 1 to March 26. The highest chance of a day with snow alone is 16% on January 22.
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. Bjästa experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.6 months, from March 17 to January 3, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 26, with an average total accumulation of 3.0 inches.
The rainless period of the year lasts for 2.4 months, from January 3 to March 17. The least rain falls around February 15, with an average total accumulation of 0.3 inches.
Average Monthly Rainfall
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Bjästa experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 6.5 months, from October 18 to May 1, 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 16, with an average total liquid-equivalent accumulation of 1.0 inches.
The snowless period of the year lasts for 5.5 months, from May 1 to October 18. The least snow falls around July 29, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Bjästa varies extremely over the course of the year. In 2018, the shortest day is December 21, with 4 hours, 37 minutes of daylight; the longest day is June 21, with 20 hours, 27 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 2:34 AM on June 20, and the latest sunrise is 6 hours, 53 minutes later at 9:26 AM on December 25. The earliest sunset is at 2:01 PM on December 18, and the latest sunset is 8 hours, 60 minutes later at 11:01 PM on June 22.
Daylight saving time (DST) is observed in Bjästa 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 Bjästa, 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 Bjästa experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 6.0 months, from September 13 to March 15, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is December 29, with an average hourly wind speed of 8.2 miles per hour.
The calmer time of year lasts for 6.0 months, from March 15 to September 13. The calmest day of the year is July 9, with an average hourly wind speed of 5.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Bjästa varies throughout the year.
The wind is most often from the south for 3.3 weeks, from February 28 to March 23 and for 5.7 months, from April 10 to September 30, with a peak percentage of 37% on July 23. The wind is most often from the west for 2.6 weeks, from March 23 to April 10 and for 5.0 months, from September 30 to February 28, with a peak percentage of 31% on March 23.
Bjästa is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.4 months, from July 3 to September 14, with an average temperature above 55°F. The day of the year with the warmest water is August 8, with an average temperature of 61°F.
The time of year with cooler water lasts for 4.8 months, from December 12 to May 7, with an average temperature below 38°F. The day of the year with the coolest water is March 6, with an average temperature of 32°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Bjästa 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 Bjästa for general outdoor tourist activities is from early July to mid August, with a peak score in the third 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 Bjästa for hot-weather activities is from mid July to early August, with a peak score in the last week of July.
The growing season in Bjästa typically lasts for 4.0 months (125 days), from around May 21 to around September 22, rarely starting before May 5 or after June 7, and rarely ending before September 3 or after October 12.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Bjästa should appear around June 4, only rarely appearing before May 24 or after June 20.
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 2.9 months, from May 12 to August 8, with an average daily incident shortwave energy per square meter above 4.8 kWh. The brightest day of the year is June 22, with an average of 6.0 kWh.
The darker period of the year lasts for 4.7 months, from October 11 to March 1, with an average daily incident shortwave energy per square meter below 1.3 kWh. The darkest day of the year is December 21, with an average of 0.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Bjästa are 63.200 deg latitude, 18.500 deg longitude, and 233 ft elevation.
The topography within 2 miles of Bjästa contains significant variations in elevation, with a maximum elevation change of 656 feet and an average elevation above sea level of 207 feet. Within 10 miles contains significant variations in elevation (1,417 feet). Within 50 miles contains very significant variations in elevation (1,969 feet).
The area within 2 miles of Bjästa is covered by trees (65%), cropland (18%), and artificial surfaces (12%), within 10 miles by trees (65%) and water (23%), and within 50 miles by trees (55%) and water (40%).
This report illustrates the typical weather in Bjästa, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Bjästa.
For each station, the records are corrected for the elevation difference between that station and Bjästa 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 Bjästa is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bjästa and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .