Average Weather in Rogaška Slatina Slovenia
In Rogaška Slatina, the summers are warm, the winters are very cold, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 24°F to 80°F and is rarely below 12°F or above 89°F.
Based on the tourism score, the best time of year to visit Rogaška Slatina for warm-weather activities is from mid June to early September.
The warm season lasts for 3.4 months, from May 29 to September 9, with an average daily high temperature above 71°F. The hottest day of the year is August 1, with an average high of 80°F and low of 58°F.
The cold season lasts for 3.4 months, from November 20 to March 1, with an average daily high temperature below 45°F. The coldest day of the year is January 14, with an average low of 24°F and high of 37°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 Rogaška Slatina, 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 Rogaška Slatina begins around May 30 and lasts for 4.2 months, ending around October 4. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 70% of the time, and overcast or mostly cloudy 30% of the time.
The cloudier part of the year begins around October 4 and lasts for 7.8 months, ending around May 30. On December 6, the cloudiest day of the year, the sky is overcast or mostly cloudy 64% of the time, and clear, mostly clear, or partly cloudy 36% 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 Rogaška Slatina varies throughout the year.
The wetter season lasts 7.5 months, from April 1 to November 16, with a greater than 26% chance of a given day being a wet day. The chance of a wet day peaks at 37% on June 13.
The drier season lasts 4.5 months, from November 16 to April 1. The smallest chance of a wet day is 14% on January 21.
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 37% on June 13.
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. Rogaška Slatina experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Rogaška Slatina. The most rain falls during the 31 days centered around September 14, with an average total accumulation of 3.7 inches.
The least rain falls around January 18, with an average total accumulation of 0.8 inches.
Average Monthly Rainfall
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. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Rogaška Slatina experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 4.9 months, from October 29 to March 27, 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 7, with an average total liquid-equivalent accumulation of 0.5 inches.
The snowless period of the year lasts for 7.1 months, from March 27 to October 29. The least snow falls around August 1, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Rogaška Slatina varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 37 minutes of daylight; the longest day is June 21, with 15 hours, 47 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:05 AM on June 16, and the latest sunrise is 2 hours, 35 minutes later at 7:40 AM on January 1. The earliest sunset is at 4:11 PM on December 11, and the latest sunset is 4 hours, 42 minutes later at 8:53 PM on June 26.
Daylight saving time (DST) is observed in Rogaška Slatina 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 Rogaška Slatina, 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 4% of 4% throughout.
Humidity Comfort Levels
The average hourly wind speed in Rogaška Slatina experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.2 months, from January 15 to May 23, with average wind speeds of more than 6.0 miles per hour. The windiest day of the year is April 3, with an average hourly wind speed of 6.9 miles per hour.
The calmer time of year lasts for 7.8 months, from May 23 to January 15. The calmest day of the year is August 11, with an average hourly wind speed of 5.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Rogaška Slatina varies throughout the year.
The wind is most often from the north for 8.2 months, from January 28 to October 4 and for 1.1 months, from November 12 to December 14, with a peak percentage of 36% on July 23. The wind is most often from the south for 1.3 months, from October 4 to November 12, with a peak percentage of 28% on November 11. The wind is most often from the west for 1.5 months, from December 14 to January 28, with a peak percentage of 35% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Rogaška Slatina 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 Rogaška Slatina for general outdoor tourist activities is from mid June to early September, with a peak score in the second 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 Rogaška Slatina for hot-weather activities is from early 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 Rogaška Slatina typically lasts for 6.4 months (195 days), from around April 12 to around October 24, rarely starting before March 24 or after April 30, and rarely ending before October 7 or after November 11.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Rogaška Slatina should appear around April 14, only rarely appearing before March 31 or after April 29.
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 19, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest day of the year is July 7, with an average of 6.8 kWh.
The darker period of the year lasts for 3.5 months, from October 28 to February 13, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 13, with an average of 1.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Rogaška Slatina are 46.237 deg latitude, 15.640 deg longitude, and 928 ft elevation.
The topography within 2 miles of Rogaška Slatina contains very significant variations in elevation, with a maximum elevation change of 1,276 feet and an average elevation above sea level of 942 feet. Within 10 miles contains very significant variations in elevation (2,677 feet). Within 50 miles contains large variations in elevation (7,467 feet).
The area within 2 miles of Rogaška Slatina is covered by cropland (58%) and trees (31%), within 10 miles by trees (48%) and cropland (43%), and within 50 miles by trees (48%) and cropland (39%).
This report illustrates the typical weather in Rogaška Slatina, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Rogaška Slatina.
For each station, the records are corrected for the elevation difference between that station and Rogaška Slatina 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 Rogaška Slatina is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Rogaška Slatina and a given station.
The stations contributing to this reconstruction are: Maribor Edvard Rusjan Airport (37%, 27 kilometers, north); Celje Airport (30%, 31 kilometers, west); Cerklje ob Krki Airport (21%, 39 kilometers, south); and Varazdin (12%, 57 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .