Climate and Average Weather Year Round in Toyama Japan
In Toyama, the summers are short, warm, and oppressive; the winters are very cold and windy; and it is wet and mostly cloudy year round. Over the course of the year, the temperature typically varies from 32°F to 88°F and is rarely below 26°F or above 94°F.
Based on the beach/pool score, the best time of year to visit Toyama for hot-weather activities is from late July to late August.
Climate in Toyama
Average Temperature in Toyama
The hot season lasts for 2.8 months, from June 25 to September 18, with an average daily high temperature above 78°F. The hottest day of the year is August 7, with an average high of 88°F and low of 75°F.
The cold season lasts for 3.3 months, from December 8 to March 16, with an average daily high temperature below 50°F. The coldest day of the year is February 3, with an average low of 32°F and high of 41°F.
Average High and Low Temperature in Toyama
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 Toyama
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
In Toyama, 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 Toyama begins around July 30 and lasts for 4.4 months, ending around December 11. On October 23, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 56% of the time, and overcast or mostly cloudy 44% of the time.
The cloudier part of the year begins around December 11 and lasts for 7.6 months, ending around July 30. On January 20, the cloudiest day of the year, the sky is overcast or mostly cloudy 75% of the time, and clear, mostly clear, or partly cloudy 25% of the time.
Cloud Cover Categories in Toyama
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Toyama varies significantly throughout the year.
The wetter season lasts 8.7 months, from June 20 to March 12, with a greater than 43% chance of a given day being a wet day. The chance of a wet day peaks at 58% on December 11.
The drier season lasts 3.3 months, from March 12 to June 20. The smallest chance of a wet day is 27% on June 2.
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 56% on November 30.
Daily Chance of Precipitation in Toyama
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. Toyama experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Toyama. The most rain falls during the 31 days centered around July 5, with an average total accumulation of 7.8 inches.
The least rain falls around February 20, with an average total accumulation of 3.7 inches.
Average Monthly Rainfall in Toyama
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. Toyama experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 3.1 months, from December 6 to March 10, 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 24, with an average total liquid-equivalent accumulation of 0.6 inches.
The snowless period of the year lasts for 8.9 months, from March 10 to December 6. The least snow falls around August 7, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall in Toyama
The length of the day in Toyama varies significantly over the course of the year. In 2021, the shortest day is December 22, with 9 hours, 39 minutes of daylight; the longest day is June 21, with 14 hours, 41 minutes of daylight.
Hours of Daylight and Twilight in Toyama
The earliest sunrise is at 4:31 AM on June 13, and the latest sunrise is 2 hours, 32 minutes later at 7:04 AM on January 6. The earliest sunset is at 4:34 PM on December 6, and the latest sunset is 2 hours, 39 minutes later at 7:13 PM on June 28.
Daylight saving time (DST) is not observed in Toyama during 2021.
Sunrise & Sunset with Twilight in Toyama
The figure below presents a compact representation of key lunar data for 2021. 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.
Moon Rise, Set & Phases in Toyama
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.
Toyama experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.4 months, from June 14 to September 26, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The muggiest day of the year is August 6, with muggy conditions 97% of the time.
The least muggy day of the year is February 19, when muggy conditions are essentially unheard of.
Humidity Comfort Levels in Toyama
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Toyama experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.7 months, from November 2 to April 22, with average wind speeds of more than 8.6 miles per hour. The windiest day of the year is December 26, with an average hourly wind speed of 11.2 miles per hour.
The calmer time of year lasts for 6.3 months, from April 22 to November 2. The calmest day of the year is August 3, with an average hourly wind speed of 6.0 miles per hour.
Average Wind Speed in Toyama
The predominant average hourly wind direction in Toyama varies throughout the year.
The wind is most often from the south for 1.8 months, from April 16 to June 10 and for 2.1 weeks, from July 28 to August 12, with a peak percentage of 38% on May 6. The wind is most often from the west for 1.6 months, from June 10 to July 28 and for 5.7 months, from October 25 to April 16, with a peak percentage of 38% on July 9. The wind is most often from the north for 2.4 months, from August 12 to October 25, with a peak percentage of 40% on September 23.
Wind Direction in Toyama
Toyama 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 2.5 months, from July 17 to October 2, with an average temperature above 74°F. The day of the year with the warmest water is August 20, with an average temperature of 80°F.
The time of year with cooler water lasts for 3.9 months, from January 6 to May 4, with an average temperature below 56°F. The day of the year with the coolest water is March 14, with an average temperature of 50°F.
Average Water Temperature in Toyama
Best Time of Year to Visit
To characterize how pleasant the weather is in Toyama 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 times of year to visit Toyama for general outdoor tourist activities are from mid May to late June and from late August to mid October, with a peak score in the third week of September.
Tourism Score in Toyama
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 Toyama for hot-weather activities is from late July to late August, with a peak score in the second week of August.
Beach/Pool Score in Toyama
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 Toyama typically lasts for 9.1 months (277 days), from around March 16 to around December 19, rarely starting before February 27 or after April 4, and rarely ending before December 2 or after January 3.
Time Spent in Various Temperature Bands and the Growing Season in Toyama
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
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 Toyama should appear around April 9, only rarely appearing before March 30 or after April 18.
Growing Degree Days in Toyama
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 significant seasonal variation over the course of the year.
The brighter period of the year lasts for 4.3 months, from April 14 to August 24, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest day of the year is June 2, with an average of 6.3 kWh.
The darker period of the year lasts for 3.1 months, from November 10 to February 12, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 26, with an average of 1.7 kWh.
Average Daily Incident Shortwave Solar Energy in Toyama
For the purposes of this report, the geographical coordinates of Toyama are 36.700 deg latitude, 137.217 deg longitude, and 36 ft elevation.
The topography within 2 miles of Toyama contains only modest variations in elevation, with a maximum elevation change of 285 feet and an average elevation above sea level of 34 feet. Within 10 miles contains only modest variations in elevation (1,467 feet). Within 50 miles contains very significant variations in elevation (10,597 feet).
The area within 2 miles of Toyama is covered by cropland (45%), grassland (30%), and trees (15%), within 10 miles by cropland (46%) and water (31%), and within 50 miles by trees (46%) and water (39%).
This report illustrates the typical weather in Toyama, 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 is only a single weather station, Toyama Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Toyama.
At a distance of 6 kilometers from Toyama, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Toyama according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for airports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.