Average Weather in Futtsu Japan
In Futtsu, the summers are short, warm, oppressive, and mostly cloudy; the winters are cold, windy, and mostly clear; and it is wet year round. Over the course of the year, the temperature typically varies from 39°F to 86°F and is rarely below 34°F or above 92°F.
Based on the beach/pool score, the best time of year to visit Futtsu for hot-weather activities is from late July to early September.
The hot season lasts for 2.6 months, from June 30 to September 18, with an average daily high temperature above 79°F. The hottest day of the year is August 9, with an average high of 86°F and low of 77°F.
The cool season lasts for 3.5 months, from December 6 to March 21, with an average daily high temperature below 57°F. The coldest day of the year is January 27, with an average low of 39°F and high of 49°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 Futtsu, 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 Futtsu begins around October 1 and lasts for 6.0 months, ending around March 31. On December 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 76% of the time, and overcast or mostly cloudy 24% of the time.
The cloudier part of the year begins around March 31 and lasts for 6.0 months, ending around October 1. On June 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 74% of the time, and clear, mostly clear, or partly cloudy 26% of the time.
Cloud Cover Categories
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 Futtsu varies significantly throughout the year.
The wetter season lasts 7.5 months, from March 8 to October 23, with a greater than 32% chance of a given day being a wet day. The chance of a wet day peaks at 48% on June 24.
The drier season lasts 4.5 months, from October 23 to March 8. The smallest chance of a wet day is 15% on December 27.
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 48% on June 24.
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. Futtsu experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Futtsu. The most rain falls during the 31 days centered around September 28, with an average total accumulation of 8.0 inches.
The least rain falls around December 30, with an average total accumulation of 2.1 inches.
Average Monthly Rainfall
The length of the day in Futtsu varies significantly over the course of the year. In 2018, the shortest day is December 22, with 9 hours, 46 minutes of daylight; the longest day is June 21, with 14 hours, 33 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:25 AM on June 13, and the latest sunrise is 2 hours, 25 minutes later at 6:50 AM on January 7. The earliest sunset is at 4:28 PM on December 6, and the latest sunset is 2 hours, 32 minutes later at 6:59 PM on June 29.
Daylight saving time (DST) is not observed in Futtsu during 2018.
Sunrise & Sunset with Twilight
Futtsu experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.0 months, from June 5 to October 3, 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 8, with muggy conditions 95% of the time.
The least muggy day of the year is January 18, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Futtsu experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.6 months, from November 26 to May 14, with average wind speeds of more than 9.4 miles per hour. The windiest day of the year is March 10, with an average hourly wind speed of 10.7 miles per hour.
The calmer time of year lasts for 6.4 months, from May 14 to November 26. The calmest day of the year is August 3, with an average hourly wind speed of 8.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Futtsu varies throughout the year.
The wind is most often from the south for 5.1 months, from April 12 to September 16, with a peak percentage of 54% on August 9. The wind is most often from the north for 6.9 months, from September 16 to April 12, with a peak percentage of 54% on January 1.
Futtsu 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 15 to October 1, with an average temperature above 75°F. The day of the year with the warmest water is August 20, with an average temperature of 79°F.
The time of year with cooler water lasts for 4.0 months, from December 27 to April 25, with an average temperature below 62°F. The day of the year with the coolest water is February 25, with an average temperature of 58°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Futtsu 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 Futtsu for general outdoor tourist activities are from late May to early June and from early September to late October, with a peak score in the first week of October.
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 Futtsu for hot-weather activities is from late July to early September, with a peak score in the third week of August.
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.
While it does not do so every year, freezing temperatures are seen in Futtsu over some winters. The day least likely to be in the growing season is January 16, with a 52% chance.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Futtsu should appear around March 20, only rarely appearing before March 4 or after April 5.
Growing Degree Days
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 4.5 months, from April 13 to August 31, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest day of the year is July 23, with an average of 6.0 kWh.
The darker period of the year lasts for 3.1 months, from November 1 to February 4, with an average daily incident shortwave energy per square meter below 3.3 kWh. The darkest day of the year is December 20, with an average of 2.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Futtsu are 35.311 deg latitude, 139.819 deg longitude, and 0 ft elevation.
The topography within 2 miles of Futtsu contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 8 feet. Within 10 miles contains only modest variations in elevation (1,296 feet). Within 50 miles contains very significant variations in elevation (5,581 feet).
The area within 2 miles of Futtsu is covered by water (72%), cropland (14%), and trees (11%), within 10 miles by water (70%) and trees (16%), and within 50 miles by water (58%) and trees (18%).
This report illustrates the typical weather in Futtsu, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Futtsu.
For each station, the records are corrected for the elevation difference between that station and Futtsu 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 Futtsu is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Futtsu and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .