January Weather at Ashiya Ab Japan

Daily high temperatures are around 49°F, rarely falling below 40°F or exceeding 57°F. The lowest daily average high temperature is 47°F on January 25.

Daily low temperatures are around 37°F, rarely falling below 30°F or exceeding 45°F. The lowest daily average low temperature is 37°F on January 26.

For reference, on August 4, the hottest day of the year, temperatures at Ashiya Ab typically range from 76°F to 87°F, while on January 26, the coldest day of the year, they range from 37°F to 47°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Southern Shores, United States (7,316 miles away); Belen, Turkey (5,102 miles); and Langarūd, Iran (4,392 miles) are the far-away foreign places with temperatures most similar to Ashiya Ab (view comparison).

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The month of January at Ashiya Ab experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 31% to 38%.

The clearest day of the month is January 1, with clear, mostly clear, or partly cloudy conditions 69% of the time.

For reference, on July 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 72%, while on December 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Ashiya Ab, the chance of a wet day over the course of January is essentially constant, remaining around 21% throughout.

For reference, the year's highest daily chance of a wet day is 56% on July 1, and its lowest chance is 20% on January 23.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during January at Ashiya Ab is gradually increasing, starting the month at 1.9 inches, when it rarely exceeds 3.6 inches or falls below 0.6 inches, and ending the month at 2.3 inches, when it rarely exceeds 4.0 inches or falls below 0.8 inches.

Over the course of January at Ashiya Ab, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 34 minutes, implying an average daily increase of 1 minute, 8 seconds, and weekly increase of 7 minutes, 58 seconds.

The shortest day of the month is January 1, with 9 hours, 56 minutes of daylight and the longest day is January 31, with 10 hours, 31 minutes of daylight.

The latest sunrise of the month at Ashiya Ab is 7:23 AM on January 8 and the earliest sunrise is 8 minutes earlier at 7:15 AM on January 31.

The earliest sunset is 5:18 PM on January 1 and the latest sunset is 27 minutes later at 5:46 PM on January 31.

Daylight saving time is not observed at Ashiya Ab during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:06 AM and sets 14 hours, 25 minutes later, at 7:31 PM, while on December 21, the shortest day of the year, it rises at 7:18 AM and sets 9 hours, 54 minutes later, at 5:12 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for January 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 chance that a given day will be muggy at Ashiya Ab is essentially constant during January, remaining around 0% throughout.

For reference, on August 2, the muggiest day of the year, there are muggy conditions 99% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

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 at Ashiya Ab is essentially constant during January, remaining within 0.1 miles per hour of 12.4 miles per hour throughout.

For reference, on January 14, the windiest day of the year, the daily average wind speed is 12.5 miles per hour, while on June 2, the calmest day of the year, the daily average wind speed is 7.8 miles per hour.

The highest daily average wind speed during January is 12.5 miles per hour on January 14.

The hourly average wind direction at Ashiya Ab throughout January is predominantly from the west, with a peak proportion of 47% on January 1.

Ashiya Ab 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 surface water temperature at Ashiya Ab is gradually decreasing during January, falling by 3°F, from 61°F to 58°F, over the course of the month.

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 at Ashiya Ab typically lasts for 10.0 months (302 days), from around February 26 to around December 24, rarely starting before January 31 or after March 18, and rarely ending before December 5 or after January 9.

The month of January at Ashiya Ab is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season reaching a low of 1% on January 16.

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.

The average accumulated growing degree days at Ashiya Ab are essentially constant during January, remaining within 6°F of 6°F throughout.

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 at Ashiya Ab is gradually increasing during January, rising by 0.5 kWh, from 2.6 kWh to 3.1 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Ashiya Ab are 33.883 deg latitude, 130.653 deg longitude, and 92 ft elevation.

The topography within 2 miles of Ashiya Ab contains only modest variations in elevation, with a maximum elevation change of 249 feet and an average elevation above sea level of 25 feet. Within 10 miles contains only modest variations in elevation (2,090 feet). Within 50 miles contains large variations in elevation (4,003 feet).

The area within 2 miles of Ashiya Ab is covered by water (43%), cropland (38%), and trees (16%), within 10 miles by water (54%) and cropland (22%), and within 50 miles by water (65%) and trees (23%).