Summer Weather in Cihuatlán Mexico

Daily high temperatures are around 88°F, rarely falling below 84°F or exceeding 91°F. The highest daily average high temperature is 89°F on August 2.

Daily low temperatures are around 75°F, rarely falling below 70°F or exceeding 78°F. The highest daily average low temperature is 76°F on July 22.

For reference, on July 31, the hottest day of the year, temperatures in Cihuatlán typically range from 76°F to 89°F, while on March 4, the coldest day of the year, they range from 65°F to 82°F.

The figure below shows you a compact characterization of the hourly average summer temperatures. 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.

Dar es Salaam, Tanzania (9,874 miles away) and Nadi, Fiji (5,884 miles) are the far-away foreign places with temperatures most similar to Cihuatlán (view comparison).

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The summer in Cihuatlán experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 46% to 94%.

The clearest day of the summer is June 1, with clear, mostly clear, or partly cloudy conditions 54% of the time.

For reference, on September 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on February 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Cihuatlán, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 15% and ending it at 65%.

For reference, the year's highest daily chance of a wet day is 66% on August 22, and its lowest chance is 0% on April 7.

Rainfall

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

The average sliding 31-day rainfall during the summer in Cihuatlán is very rapidly increasing, starting the season at 1.5 inches, when it rarely exceeds 3.5 inches or falls below 0.3 inches, and ending the season at 7.8 inches, when it rarely exceeds 13.5 inches or falls below 2.8 inches.

Over the course of the summer in Cihuatlán, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 43 minutes, implying an average daily decrease of 28 seconds, and weekly decrease of 3 minutes, 19 seconds.

The shortest day of the summer is August 31, with 12 hours, 30 minutes of daylight and the longest day is June 19, with 13 hours, 18 minutes of daylight.

The earliest sunrise of the summer in Cihuatlán is 6:19 AM on June 4 and the latest sunrise is 24 minutes later at 6:43 AM on August 31.

The latest sunset is 7:40 PM on July 5 and the earliest sunset is 27 minutes earlier at 7:13 PM on August 31.

Daylight saving time is not observed in Cihuatlán during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:21 AM and sets 13 hours, 18 minutes later, at 7:38 PM, while on December 21, the shortest day of the year, it rises at 7:27 AM and sets 10 hours, 58 minutes later, at 6:25 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 the summer of 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 Cihuatlán is increasing during the summer, rising from 95% to 100% over the course of the season.

The highest chance of a muggy day during the summer is 100% on August 14.

For reference, on August 3, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 11, the least muggy day of the year, there are muggy conditions 47% 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 Cihuatlán is essentially constant during the summer, remaining within 0.5 miles per hour of 5.8 miles per hour throughout.

For reference, on May 30, the windiest day of the year, the daily average wind speed is 6.3 miles per hour, while on November 30, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.

The lowest daily average wind speed during the summer is 5.3 miles per hour on August 3.

The hourly average wind direction in Cihuatlán throughout the summer is predominantly from the west, with a peak proportion of 62% on June 1.

Cihuatlán 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 Cihuatlán is increasing during the summer, rising by 4°F, from 81°F to 85°F, over the course of the season.

The highest average surface water temperature during the summer is 86°F on August 10.

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 Cihuatlán 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 Cihuatlán are very rapidly increasing during the summer, increasing by 2,858°F, from 3,776°F to 6,635°F, over the course of the season.

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 Cihuatlán is very rapidly decreasing during the summer, falling by 2.5 kWh, from 6.7 kWh to 4.2 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Cihuatlán are 19.237 deg latitude, -104.565 deg longitude, and 95 ft elevation.

The topography within 2 miles of Cihuatlán contains very significant variations in elevation, with a maximum elevation change of 994 feet and an average elevation above sea level of 265 feet. Within 10 miles contains very significant variations in elevation (2,815 feet). Within 50 miles contains large variations in elevation (9,501 feet).

The area within 2 miles of Cihuatlán is covered by cropland (89%), within 10 miles by cropland (60%) and trees (24%), and within 50 miles by water (46%) and trees (28%).