Climate and Average Weather Year Round in Orsa Sweden

In Orsa, the summers are comfortable; the winters are long, freezing, and snowy; and it is mostly cloudy year round. Over the course of the year, the temperature typically varies from 14°F to 70°F and is rarely below -5°F or above 79°F.

Based on the tourism score, the best time of year to visit Orsa for warm-weather activities is from late June to mid August.

The warm season lasts for 3.2 months, from May 25 to September 2, with an average daily high temperature above 61°F. The hottest month of the year in Orsa is July, with an average high of 69°F and low of 50°F.

The cold season lasts for 3.9 months, from November 14 to March 11, with an average daily high temperature below 35°F. The coldest month of the year in Orsa is January, with an average low of 15°F and high of 27°F.

In Orsa, 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 Orsa begins around April 18 and lasts for 5.0 months, ending around September 16.

The clearest month of the year in Orsa is July, during which on average the sky is clear, mostly clear, or partly cloudy 48% of the time.

The cloudier part of the year begins around September 16 and lasts for 7.0 months, ending around April 18.

The cloudiest month of the year in Orsa is November, during which on average the sky is overcast or mostly cloudy 75% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Orsa varies throughout the year.

The wetter season lasts 6.3 months, from May 4 to November 14, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Orsa is June, with an average of 11.5 days with at least 0.04 inches of precipitation.

The drier season lasts 5.7 months, from November 14 to May 4. The month with the fewest wet days in Orsa is February, with an average of 5.3 days with at least 0.04 inches of precipitation.

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 Orsa changes throughout the year.

Rain alone is the most common for 8.6 months, from March 16 to December 4. The month with the most days of rain alone in Orsa is June, with an average of 11.4 days.

Snow alone is the most common for 3.4 months, from December 4 to March 16. The month with the most days of snow alone in Orsa is January, with an average of 4.1 days.

Rainfall

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. Orsa experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from March 15 to December 16, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Orsa is August, with an average rainfall of 3.4 inches.

The rainless period of the year lasts for 3.0 months, from December 16 to March 15. The month with the least rain in Orsa is February, with an average rainfall of 0.3 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Orsa experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 6.8 months, from October 9 to May 2, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Orsa is January, with an average snowfall of 7.7 inches.

The snowless period of the year lasts for 5.2 months, from May 2 to October 9. The least snow falls around July 27, with an average total accumulation of 0.0 inches.

The length of the day in Orsa varies extremely over the course of the year. In 2024, the shortest day is December 21, with 5 hours, 29 minutes of daylight; the longest day is June 20, with 19 hours, 20 minutes of daylight.

The earliest sunrise is at 3:23 AM on June 19, and the latest sunrise is 5 hours, 53 minutes later at 9:16 AM on December 26. The earliest sunset is at 2:43 PM on December 16, and the latest sunset is 8 hours, 0 minutes later at 10:43 PM on June 22.

Daylight saving time (DST) is observed in Orsa during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

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 perceived humidity level in Orsa, 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.

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 Orsa experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 5.4 months, from November 6 to April 19, with average wind speeds of more than 4.6 miles per hour. The windiest month of the year in Orsa is January, with an average hourly wind speed of 5.1 miles per hour.

The calmer time of year lasts for 6.6 months, from April 19 to November 6. The calmest month of the year in Orsa is July, with an average hourly wind speed of 4.2 miles per hour.

The predominant average hourly wind direction in Orsa varies throughout the year.

The wind is most often from the north for 1.4 weeks, from April 13 to April 23 and for 1.7 weeks, from June 2 to June 14, with a peak percentage of 30% on June 9. The wind is most often from the south for 1.3 months, from April 23 to June 2 and for 3.4 months, from June 14 to September 27, with a peak percentage of 37% on August 7. The wind is most often from the west for 6.5 months, from September 27 to April 13, with a peak percentage of 41% on January 1.

To characterize how pleasant the weather is in Orsa 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 Orsa for general outdoor tourist activities is from late June 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 Orsa for hot-weather activities is for the entire month of July, with a peak score in the third week of July.

Methodology

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.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Orsa typically lasts for 3.9 months (119 days), from around May 18 to around September 14, rarely starting before May 1 or after June 7, and rarely ending before August 25 or after October 5.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Orsa should appear around May 22, only rarely appearing before May 11 or after June 5.

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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.1 months, from May 4 to August 8, with an average daily incident shortwave energy per square meter above 4.7 kWh. The brightest month of the year in Orsa is June, with an average of 5.8 kWh.

The darker period of the year lasts for 4.5 months, from October 12 to February 25, with an average daily incident shortwave energy per square meter below 1.3 kWh. The darkest month of the year in Orsa is December, with an average of 0.1 kWh.

For the purposes of this report, the geographical coordinates of Orsa are 61.120 deg latitude, 14.616 deg longitude, and 545 ft elevation.

The topography within 2 miles of Orsa contains only modest variations in elevation, with a maximum elevation change of 456 feet and an average elevation above sea level of 606 feet. Within 10 miles contains only modest variations in elevation (1,385 feet). Within 50 miles contains very significant variations in elevation (2,700 feet).

The area within 2 miles of Orsa is covered by artificial surfaces (28%), water (26%), trees (23%), and cropland (21%), within 10 miles by trees (79%), and within 50 miles by trees (83%).