January Weather in Mazatlán Mexico

Daily high temperatures are around 79°F, rarely falling below 74°F or exceeding 84°F. The lowest daily average high temperature is 79°F on January 23.

Daily low temperatures are around 56°F, rarely falling below 49°F or exceeding 64°F. The lowest daily average low temperature is 55°F on January 23.

For reference, on July 25, the hottest day of the year, temperatures in Mazatlán typically range from 77°F to 90°F, while on January 23, the coldest day of the year, they range from 55°F to 79°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.

Nova Iguaçu, Brazil (5,295 miles away); Behompy, Madagascar (10,563 miles); and Taichung, Taiwan (7,897 miles) are the far-away foreign places with temperatures most similar to Mazatlán (view comparison).

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The month of January in Mazatlán experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 45% to 41%.

The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 59% of the time.

For reference, on August 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 88%, while on June 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Mazatlán, the chance of a wet day over the course of January is essentially constant, remaining around 7% throughout.

For reference, the year's highest daily chance of a wet day is 68% on August 28, and its lowest chance is 1% on March 30.

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 Mazatlán is essentially constant, remaining about 0.7 inches throughout, and rarely exceeding 2.4 inches or falling below -0.0 inches.

Over the course of January in Mazatlán, 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 44 seconds, and weekly increase of 5 minutes, 6 seconds.

The shortest day of the month is January 1, with 10 hours, 44 minutes of daylight and the longest day is January 31, with 11 hours, 6 minutes of daylight.

The latest sunrise of the month in Mazatlán is 6:49 AM on January 14 and the earliest sunrise is 3 minutes earlier at 6:46 AM on January 31.

The earliest sunset is 5:31 PM on January 1 and the latest sunset is 21 minutes later at 5:52 PM on January 31.

Daylight saving time is not observed in Mazatlán during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:20 AM and sets 13 hours, 34 minutes later, at 6:54 PM, while on December 21, the shortest day of the year, it rises at 6:42 AM and sets 10 hours, 42 minutes later, at 5:25 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 Mazatlán is gradually decreasing during January, falling from 8% to 4% over the course of the month.

The lowest chance of a muggy day during January is 4% on January 23.

For reference, on September 10, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 23, the least muggy day of the year, there are muggy conditions 4% 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 Mazatlán is essentially constant during January, remaining within 0.1 miles per hour of 5.9 miles per hour throughout.

For reference, on June 1, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on August 5, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.

The hourly average wind direction in Mazatlán throughout January is predominantly from the north, with a peak proportion of 46% on January 1.

Mazatlán 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 Mazatlán is essentially constant during January, remaining within 1°F of 73°F throughout.

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 Mazatlán 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 Mazatlán are rapidly increasing during January, increasing by 481°F, from 17°F to 498°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 Mazatlán is gradually increasing during January, rising by 0.7 kWh, from 4.0 kWh to 4.7 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Mazatlán are 23.233 deg latitude, -106.406 deg longitude, and 33 ft elevation.

The topography within 2 miles of Mazatlán contains only modest variations in elevation, with a maximum elevation change of 344 feet and an average elevation above sea level of 35 feet. Within 10 miles contains only modest variations in elevation (1,024 feet). Within 50 miles contains very significant variations in elevation (8,619 feet).

The area within 2 miles of Mazatlán is covered by artificial surfaces (61%), water (15%), and shrubs (10%), within 10 miles by water (45%) and cropland (31%), and within 50 miles by water (51%) and trees (35%).