Average Weather in San Ignacio Mexico
In San Ignacio, the wet season is warm and mostly cloudy and the dry season is comfortable and partly cloudy. Over the course of the year, the temperature typically varies from 40°F to 82°F and is rarely below 34°F or above 89°F.
Based on the tourism score, the best time of year to visit San Ignacio for warm-weather activities is from mid April to mid June.
The warm season lasts for 2.2 months, from April 3 to June 10, with an average daily high temperature above 80°F. The hottest day of the year is May 10, with an average high of 82°F and low of 54°F.
The cool season lasts for 2.2 months, from November 27 to February 5, with an average daily high temperature below 71°F. The coldest day of the year is January 7, with an average low of 40°F and high of 69°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 San Ignacio, 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 San Ignacio begins around October 27 and lasts for 7.6 months, ending around June 15. On May 16, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around June 15 and lasts for 4.4 months, ending around October 27. On September 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 79% of the time, and clear, mostly clear, or partly cloudy 21% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in San Ignacio varies significantly throughout the year.
The wetter season lasts 4.1 months, from May 30 to October 2, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 49% on July 4.
The drier season lasts 7.9 months, from October 2 to May 30. The smallest chance of a wet day is 2% on December 12.
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 49% on July 4.
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. San Ignacio experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 6.5 months, from April 19 to November 4, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 5, with an average total accumulation of 4.2 inches.
The rainless period of the year lasts for 5.5 months, from November 4 to April 19. The least rain falls around December 12, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The length of the day in San Ignacio varies over the course of the year. In 2018, the shortest day is December 21, with 10 hours, 50 minutes of daylight; the longest day is June 21, with 13 hours, 26 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:36 AM on March 31, and the latest sunrise is 1 hour, 7 minutes later at 7:42 AM on October 27. The earliest sunset is at 5:58 PM on November 27, and the latest sunset is 2 hours, 29 minutes later at 8:28 PM on July 5.
Daylight saving time (DST) is observed in San Ignacio during 2018, starting in the spring on April 1, lasting 6.8 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in San Ignacio, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in San Ignacio experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.3 months, from June 2 to October 10, with average wind speeds of more than 8.0 miles per hour. The windiest day of the year is June 29, with an average hourly wind speed of 9.0 miles per hour.
The calmer time of year lasts for 7.7 months, from October 10 to June 2. The calmest day of the year is December 3, with an average hourly wind speed of 7.0 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in San Ignacio varies throughout the year.
The wind is most often from the west for 1.2 months, from March 2 to April 8, with a peak percentage of 44% on March 27. The wind is most often from the east for 11 months, from April 8 to March 2, with a peak percentage of 46% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in San Ignacio throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Ignacio for general outdoor tourist activities is from mid April to mid June, with a peak score in the third week of May.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Ignacio for hot-weather activities is from late April to early June, with a peak score in the second week of May.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in San Ignacio typically lasts for 11 months (348 days), from around January 17 to around December 30, rarely starting after March 9, or ending before November 17.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in San Ignacio should appear around January 16, only rarely appearing before January 13 or after January 21.
Growing Degree Days
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 3.2 months, from March 20 to June 28, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is May 31, with an average of 7.5 kWh.
The darker period of the year lasts for 2.4 months, from November 15 to January 28, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest day of the year is December 20, with an average of 4.5 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of San Ignacio are 21.282 deg latitude, -100.537 deg longitude, and 6,624 ft elevation.
The topography within 2 miles of San Ignacio contains very significant variations in elevation, with a maximum elevation change of 837 feet and an average elevation above sea level of 6,644 feet. Within 10 miles also contains very significant variations in elevation (1,926 feet). Within 50 miles contains very significant variations in elevation (8,835 feet).
The area within 2 miles of San Ignacio is covered by grassland (57%), artificial surfaces (24%), and cropland (11%), within 10 miles by grassland (66%) and shrubs (23%), and within 50 miles by grassland (37%) and shrubs (31%).
This report illustrates the typical weather in San Ignacio, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in San Ignacio.
For each station, the records are corrected for the elevation difference between that station and San Ignacio according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at San Ignacio is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Ignacio and a given station.
The stations contributing to this reconstruction are: Querétaro Intercontinental Airport (44%, 83 kilometers, southeast); Del Bajío International Airport (30%, 104 kilometers, west); and Ponciano Arriaga International Airport (26%, 116 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .