Average Weather in Loreto Mexico
In Loreto, the summers are long, hot, and muggy; the winters are comfortable; and it is dry and partly cloudy year round. Over the course of the year, the temperature typically varies from 59°F to 96°F and is rarely below 55°F or above 99°F.
The hot season lasts for 4.4 months, from May 26 to October 8, with an average daily high temperature above 91°F. The hottest day of the year is July 1, with an average high of 96°F and low of 78°F.
The cool season lasts for 3.1 months, from November 30 to March 3, with an average daily high temperature below 78°F. The coldest day of the year is January 23, with an average low of 59°F and high of 74°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 Loreto, 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 Loreto begins around April 16 and lasts for 2.7 months, ending around July 6. On June 8, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 87% of the time, and overcast or mostly cloudy 13% of the time.
The cloudier part of the year begins around July 6 and lasts for 9.3 months, ending around April 16. On July 31, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Loreto varies throughout the year.
The wetter season lasts 1.6 months, from August 9 to September 28, with a greater than 9% chance of a given day being a wet day. The chance of a wet day peaks at 18% on September 7.
The drier season lasts 10 months, from September 28 to August 9. The smallest chance of a wet day is 0% on April 25.
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 18% on September 7.
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. Loreto experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 3.1 months, from July 19 to October 23, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around September 5, with an average total accumulation of 2.0 inches.
The rainless period of the year lasts for 8.9 months, from October 23 to July 19. The least rain falls around May 8, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall
The length of the day in Loreto varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 31 minutes of daylight; the longest day is June 21, with 13 hours, 46 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:16 AM on April 1, and the latest sunrise is 1 hour, 16 minutes later at 7:31 AM on October 28. The earliest sunset is at 5:33 PM on November 29, and the latest sunset is 2 hours, 48 minutes later at 8:21 PM on July 1.
Daylight saving time (DST) is observed in Loreto during 2017, starting in the spring on April 2, lasting 6.8 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
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.
Loreto experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 4.0 months, from June 23 to October 24, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The muggiest day of the year is August 29, with muggy conditions 92% of the time.
The least muggy day of the year is April 14, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
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 Loreto experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.4 months, from November 11 to April 24, with average wind speeds of more than 4.3 miles per hour. The windiest day of the year is December 13, with an average hourly wind speed of 5.0 miles per hour.
The calmer time of year lasts for 6.6 months, from April 24 to November 11. The calmest day of the year is August 7, with an average hourly wind speed of 3.5 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Loreto varies throughout the year.
The wind is most often from the west for 7.0 months, from March 17 to October 17, with a peak percentage of 68% on May 30. The wind is most often from the north for 5.0 months, from October 17 to March 17, with a peak percentage of 69% on January 1.
Loreto 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 some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.3 months, from July 15 to October 24, with an average temperature above 81°F. The day of the year with the warmest water is September 4, with an average temperature of 85°F.
The time of year with cooler water lasts for 4.0 months, from December 21 to April 22, with an average temperature below 70°F. The day of the year with the coolest water is February 7, with an average temperature of 66°F.
Average Water Temperature
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 experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 2.6 months, from April 18 to July 5, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest day of the year is June 1, with an average of 8.2 kWh.
The darker period of the year lasts for 2.9 months, from November 8 to February 4, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest day of the year is December 18, with an average of 4.0 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Loreto are 26.012 deg latitude, -111.349 deg longitude, and 26 ft elevation.
The topography within 2 miles of Loreto contains significant variations in elevation, with a maximum elevation change of 587 feet and an average elevation above sea level of 48 feet. Within 10 miles contains significant variations in elevation (3,419 feet). Within 50 miles also contains extreme variations in elevation (5,427 feet).
The area within 2 miles of Loreto is covered by shrubs (66%) and water (32%), within 10 miles by shrubs (53%) and water (47%), and within 50 miles by shrubs (53%) and water (47%).
This report illustrates the typical weather in Loreto, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Loreto is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Loreto, according to the International Standard Atmosphere .
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.