January Weather in Yanbu Saudi Arabia

Daily high temperatures are around 81°F, rarely falling below 74°F or exceeding 88°F. The lowest daily average high temperature is 80°F on January 21.

Daily low temperatures are around 59°F, rarely falling below 52°F or exceeding 67°F. The lowest daily average low temperature is 59°F on January 21.

For reference, on August 21, the hottest day of the year, temperatures in Yanbu typically range from 81°F to 102°F, while on January 21, the coldest day of the year, they range from 59°F to 80°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.

Chingueṭṭi, Mauritania (3,215 miles away) is the far-away foreign place with temperatures most similar to Yanbu (view comparison).

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The month of January in Yanbu experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 24% to 19%. The lowest chance of overcast or mostly cloudy conditions is 18% on January 26.

The clearest day of the month is January 26, with clear, mostly clear, or partly cloudy conditions 82% of the time.

For reference, on July 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 29%, while on June 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 92%.

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 in Yanbu is essentially constant, remaining about 0.0 inches throughout, and rarely exceeding 0.1 inches or falling below -0.0 inches.

The highest average 31-day accumulation is 0.1 inches on January 13.

Over the course of January in Yanbu, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 22 minutes, implying an average daily increase of 45 seconds, and weekly increase of 5 minutes, 14 seconds.

The shortest day of the month is January 1, with 10 hours, 41 minutes of daylight and the longest day is January 31, with 11 hours, 3 minutes of daylight.

The latest sunrise of the month in Yanbu is 7:12 AM on January 15 and the earliest sunrise is 3 minutes earlier at 7:09 AM on January 31.

The earliest sunset is 5:51 PM on January 1 and the latest sunset is 21 minutes later at 6:12 PM on January 31.

Daylight saving time is not observed in Yanbu during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:40 AM and sets 13 hours, 38 minutes later, at 7:18 PM, while on December 21, the shortest day of the year, it rises at 7:06 AM and sets 10 hours, 39 minutes later, at 5:45 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 in Yanbu is essentially constant during January, remaining within 1% of 8% throughout.

The lowest chance of a muggy day during January is 7% on January 20.

For reference, on August 17, the muggiest day of the year, there are muggy conditions 80% of the time, while on January 20, the least muggy day of the year, there are muggy conditions 7% 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 in Yanbu is essentially constant during January, remaining within 0.2 miles per hour of 9.6 miles per hour throughout.

For reference, on January 21, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on October 20, the calmest day of the year, the daily average wind speed is 7.6 miles per hour.

The highest daily average wind speed during January is 9.8 miles per hour on January 21.

The hourly average wind direction in Yanbu throughout January is predominantly from the north, with a peak proportion of 40% on January 14.

Yanbu 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 in Yanbu is gradually decreasing during January, falling by 2°F, from 79°F to 76°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).

Temperatures in Yanbu are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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 in Yanbu are rapidly increasing during January, increasing by 586°F, from 20°F to 607°F, over the course of the month.

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 in Yanbu is gradually increasing during January, rising by 0.7 kWh, from 4.4 kWh to 5.1 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Yanbu are 24.089 deg latitude, 38.064 deg longitude, and 33 ft elevation.

The topography within 2 miles of Yanbu contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 17 feet. Within 10 miles also contains only modest variations in elevation (272 feet). Within 50 miles contains only modest variations in elevation (7,556 feet).

The area within 2 miles of Yanbu is covered by bare soil (87%) and water (13%), within 10 miles by bare soil (58%) and water (42%), and within 50 miles by bare soil (55%) and water (45%).