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October Weather in San Jeronimito Mexico

Daily high temperatures are around 89°F, rarely falling below 86°F or exceeding 92°F.

Daily low temperatures are around 75°F, rarely falling below 72°F or exceeding 77°F.

For reference, on July 24, the hottest day of the year, temperatures in San Jeronimito typically range from 76°F to 90°F, while on January 24, the coldest day of the year, they range from 67°F to 86°F.

Average High and Low Temperature in October in San Jeronimito

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on October. 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.

Average Hourly Temperature in October in San Jeronimito

Average Hourly Temperature in October in San JeronimitoOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNovcomfortablewarmwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Dar es Salaam, Tanzania (9,693 miles away) is the far-away foreign place with temperatures most similar to San Jeronimito (view comparison).

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The month of October in San Jeronimito experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 88% to 66%.

The clearest day of the month is October 31, with clear, mostly clear, or partly cloudy conditions 34% of the time.

For reference, on September 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on February 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%.

Cloud Cover Categories in October in San Jeronimito

Cloud Cover Categories in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 112%Oct 112%Oct 3134%Oct 3134%Oct 1116%Oct 1116%Oct 2126%Oct 2126%clearmostly clearmostly cloudyovercastpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In San Jeronimito, the chance of a wet day over the course of October is very rapidly decreasing, starting the month at 52% and ending it at 14%.

For reference, the year's highest daily chance of a wet day is 68% on September 11, and its lowest chance is 0% on April 13.

Probability of Precipitation in October in San Jeronimito

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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 October in San Jeronimito is very rapidly decreasing, starting the month at 6.4 inches, when it rarely exceeds 11.4 inches or falls below 2.3 inches, and ending the month at 1.6 inches, when it rarely exceeds 4.3 inches.

Average Monthly Rainfall in October in San Jeronimito

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of October in San Jeronimito, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 28 minutes, implying an average daily decrease of 56 seconds, and weekly decrease of 6 minutes, 31 seconds.

The shortest day of the month is October 31, with 11 hours, 30 minutes of daylight and the longest day is October 1, with 11 hours, 58 minutes of daylight.

Hours of Daylight and Twilight in October in San Jeronimito

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month in San Jeronimito is 6:35 AM on October 1 and the latest sunrise is 8 minutes later at 6:43 AM on October 31.

The latest sunset is 6:33 PM on October 1 and the earliest sunset is 20 minutes earlier at 6:13 PM on October 31.

Daylight saving time is not observed in San Jeronimito during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:11 AM and sets 13 hours, 11 minutes later, at 7:22 PM, while on December 21, the shortest day of the year, it rises at 7:11 AM and sets 11 hours, 5 minutes later, at 6:16 PM.

Sunrise & Sunset with Twilight in October in San Jeronimito

The solar day over the course of October. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in October in San Jeronimito

Solar Elevation and Azimuth in October in San JeronimitoOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSepNov00101020202030304040505050607000010102020303030404050506060
northeastsouthwest
Solar elevation and azimuth over the course of October 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for October 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.

Moon Rise, Set & Phases in October in San Jeronimito

Moon Rise, Set & Phases in October in San JeronimitoOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 27:56 PMSep 27:56 PMSep 178:35 PMSep 178:35 PMOct 212:50 PMOct 212:50 PMOct 175:27 AMOct 175:27 AMNov 16:48 AMNov 16:48 AMNov 153:29 PMNov 153:29 PMDec 112:22 AMDec 112:22 AM6:09 AM6:09 AM6:59 PM6:59 PM6:41 PM6:41 PM7:03 AM7:03 AM6:27 AM6:27 AM6:35 PM6:35 PM5:53 PM5:53 PM6:45 AM6:45 AM6:47 AM6:47 AM6:19 PM6:19 PM6:01 PM6:01 PM7:39 AM7:39 AM6:27 AM6:27 AM5:42 PM5:42 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
1%5:41 AME6:04 PMW-11:53 AMS252,362 mi
2
0%6:27 AME6:35 PMW-12:32 PMS252,597 mi
3
1%7:14 AME7:08 PMWSW-1:11 PMS252,402 mi
4
4%8:01 AMESE7:42 PMWSW-1:51 PMS251,766 mi
5
8%8:51 AMESE8:19 PMWSW-2:35 PMS250,660 mi
6
15%9:44 AMESE9:01 PMWSW-3:22 PMS249,046 mi
7
23%10:38 AMESE9:48 PMWSW-4:13 PMS246,894 mi
8
32%11:34 AMESE10:40 PMWSW-5:07 PMS244,200 mi
9
42%12:31 PMESE11:37 PMWSW-6:04 PMS241,006 mi
10
50%1:25 PMESE--7:02 PMS237,423 mi
11
64%-12:37 AMWSW2:16 PMESE7:58 PMS233,637 mi
12
75%-1:39 AMWSW3:04 PMESE8:53 PMS229,913 mi
13
84%-2:40 AMWSW3:48 PMESE9:45 PMS226,568 mi
14
92%-3:41 AMWSW4:30 PME10:36 PMS223,942 mi
15
98%-4:42 AMW5:11 PME11:26 PMS222,337 mi
16
99%-5:43 AMW5:53 PME--
17
100%-6:45 AMWNW6:37 PMENE12:17 AMS221,968 mi
18
99%-7:50 AMWNW7:25 PMENE1:11 AMS222,908 mi
19
95%-8:56 AMWNW8:18 PMENE2:08 AMN225,071 mi
20
88%-10:03 AMWNW9:15 PMENE3:08 AMN228,221 mi
21
79%-11:07 AMWNW10:15 PMENE4:10 AMN232,020 mi
22
69%-12:07 PMWNW11:15 PMENE5:11 AMN236,089 mi
23
59%-12:59 PMWNW-6:09 AMN240,075 mi
24
50%12:14 AMENE1:45 PMWNW-7:02 AMN243,699 mi
25
38%1:09 AMENE2:26 PMWNW-7:50 AMN246,769 mi
26
28%2:01 AMENE3:02 PMWNW-8:33 AMS249,180 mi
27
20%2:51 AME3:35 PMW-9:14 AMS250,896 mi
28
13%3:38 AME4:06 PMW-9:53 AMS251,937 mi
29
7%4:24 AME4:37 PMW-10:31 AMS252,360 mi
30
3%5:11 AME5:09 PMW-11:10 AMS252,239 mi
31
1%5:58 AMESE5:43 PMWSW-11:50 AMS251,652 mi

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 San Jeronimito is essentially constant during October, remaining within 1% of 99% throughout.

For reference, on August 23, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 8, the least muggy day of the year, there are muggy conditions 65% of the time.

Humidity Comfort Levels in October in San Jeronimito

Humidity Comfort Levels in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 1100%Oct 1100%Oct 3199%Oct 3199%Oct 11100%Oct 11100%Oct 2199%Oct 2199%miserablemiserableoppressiveoppressivemuggymuggyhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 San Jeronimito is decreasing during October, decreasing from 6.2 miles per hour to 5.1 miles per hour over the course of the month.

For reference, on September 13, the windiest day of the year, the daily average wind speed is 6.8 miles per hour, while on December 5, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.

Average Wind Speed in October in San Jeronimito

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in San Jeronimito throughout October is predominantly from the west, with a peak proportion of 54% on October 24.

Wind Direction in October in San Jeronimito

Wind Direction in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

San Jeronimito 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 San Jeronimito is essentially constant during October, remaining around 85°F throughout.

Average Water Temperature in October in San Jeronimito

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 San Jeronimito 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.

Time Spent in Various Temperature Bands and the Growing Season in October in San Jeronimito

Time Spent in Various Temperature Bands and the Growing Season in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNov100%Oct 16100%Oct 16comfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 San Jeronimito are very rapidly increasing during October, increasing by 929°F, from 8,093°F to 9,022°F, over the course of the month.

Growing Degree Days in October in San Jeronimito

Growing Degree Days in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031318,000°F8,000°F8,200°F8,200°F8,400°F8,400°F8,600°F8,600°F8,800°F8,800°F9,000°F9,000°FSepNovOct 18,093°FOct 18,093°FOct 319,022°FOct 319,022°FOct 118,402°FOct 118,402°FOct 218,712°FOct 218,712°F
The average growing degree days accumulated over the course of October, with 25th to 75th and 10th to 90th percentile bands.

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 San Jeronimito is essentially constant during October, remaining within 0.2 kWh of 4.3 kWh throughout.

The lowest average daily incident shortwave solar energy during October is 4.2 kWh on October 8.

Average Daily Incident Shortwave Solar Energy in October in San Jeronimito

Average Daily Incident Shortwave Solar Energy in October in San JeronimitoOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhSepNovOct 84.2 kWhOct 84.2 kWhOct 314.5 kWhOct 314.5 kWhOct 214.4 kWhOct 214.4 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of San Jeronimito are 17.568 deg latitude, -101.345 deg longitude, and 105 ft elevation.

The topography within 2 miles of San Jeronimito contains only modest variations in elevation, with a maximum elevation change of 427 feet and an average elevation above sea level of 118 feet. Within 10 miles contains only modest variations in elevation (4,016 feet). Within 50 miles also contains extreme variations in elevation (9,380 feet).

The area within 2 miles of San Jeronimito is covered by cropland (98%), within 10 miles by cropland (57%) and water (25%), and within 50 miles by water (47%) and trees (30%).

This report illustrates the typical weather in San Jeronimito, 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 is only a single weather station, Ixtapa-Zihuatanejo International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Jeronimito.

At a distance of 13 kilometers from San Jeronimito, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and San Jeronimito according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . 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.

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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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