Average Weather in October in San Mateo Venezuela
Daily high temperatures are around 86°F, rarely falling below 82°F or exceeding 89°F.
Daily low temperatures are around 69°F, rarely falling below 67°F or exceeding 72°F. The highest daily average low temperature is 70°F on October 4.
For reference, on March 28, the hottest day of the year, temperatures in San Mateo typically range from 70°F to 90°F, while on January 17, the coldest day of the year, they range from 65°F to 87°F.
Average High and Low Temperature in October
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
The month of October in San Mateo experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 79% throughout the month. The highest chance of overcast or mostly cloudy conditions is 80% on October 1.
The clearest day of the month is October 31, with clear, mostly clear, or partly cloudy conditions 22% of the time.
For reference, on May 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 83%, while on January 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 39%.
Cloud Cover Categories in October
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. In San Mateo, the chance of a wet day over the course of October is rapidly decreasing, starting the month at 48% and ending it at 41%.
For reference, the year's highest daily chance of a wet day is 58% on August 10, and its lowest chance is 3% on March 16.
Probability of Precipitation in October
The average sliding 31-day rainfall during October in San Mateo is decreasing, starting the month at 3.6 inches, when it rarely exceeds 6.0 inches or falls below 1.3 inches, and ending the month at 2.8 inches, when it rarely exceeds 4.6 inches or falls below 1.0 inches.
Average Monthly Rainfall in October
Over the course of October in San Mateo, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 16 minutes, implying an average daily decrease of 32 seconds, and weekly decrease of 3 minutes, 41 seconds.
The shortest day of the month is October 31, with 11 hours, 46 minutes of daylight and the longest day is October 1, with 12 hours, 2 minutes of daylight.
Hours of Daylight and Twilight in October
The earliest sunrise of the month in San Mateo is 6:18 AM on October 9 and the latest sunrise is 2 minutes, 8 seconds later at 6:20 AM on October 31.
The latest sunset is 6:19 PM on October 1 and the earliest sunset is 14 minutes earlier at 6:06 PM on October 31.
Daylight saving time is not observed in San Mateo during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 6:09 AM and sets 12 hours, 43 minutes later, at 6:53 PM, while on December 21, the shortest day of the year, it rises at 6:42 AM and sets 11 hours, 32 minutes later, at 6:13 PM.
Sunrise & Sunset with Twilight in October
The figure below presents a compact representation of key lunar data for October 2021. 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
The chance that a given day will be muggy in San Mateo is essentially constant during October, remaining around 96% throughout.
The highest chance of a muggy day during October is 96% on October 23.
For reference, on October 23, the muggiest day of the year, there are muggy conditions 96% of the time, while on January 23, the least muggy day of the year, there are muggy conditions 50% of the time.
Humidity Comfort Levels in October
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in San Mateo is essentially constant during October, remaining within 0.2 miles per hour of 4.7 miles per hour throughout.
For reference, on March 5, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on October 4, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.
The lowest daily average wind speed during October is 4.6 miles per hour on October 5.
Average Wind Speed in October
The hourly average wind direction in San Mateo throughout October is predominantly from the east, with a peak proportion of 66% on October 31.
Wind Direction in October
San Mateo 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 Mateo is essentially constant during October, remaining around 83°F throughout.
The highest average surface water temperature during October is 83°F on October 17.
Average Water Temperature in October
Temperatures in San Mateo 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
The average accumulated growing degree days in San Mateo are rapidly increasing during October, increasing by 799°F, from 7,330°F to 8,129°F, over the course of the month.
Growing Degree Days in October
The average daily incident shortwave solar energy in San Mateo is essentially constant during October, remaining around 4.9 kWh throughout.
The lowest average daily incident shortwave solar energy during October is 4.8 kWh on October 14.
Average Daily Incident Shortwave Solar Energy in October
For the purposes of this report, the geographical coordinates of San Mateo are 10.213 deg latitude, -67.424 deg longitude, and 1,631 ft elevation.
The topography within 2 miles of San Mateo contains very significant variations in elevation, with a maximum elevation change of 1,834 feet and an average elevation above sea level of 1,888 feet. Within 10 miles contains very significant variations in elevation (5,292 feet). Within 50 miles also contains extreme variations in elevation (8,990 feet).
The area within 2 miles of San Mateo is covered by grassland (75%) and trees (19%), within 10 miles by grassland (59%) and trees (24%), and within 50 miles by grassland (39%) and water (29%).
This report illustrates the typical weather in San Mateo, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in San Mateo.
For each station, the records are corrected for the elevation difference between that station and San Mateo 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 Mateo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Mateo and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .