1. WeatherSpark.com
  2. United States
  3. California
  4. Los Olivos
  5. April

Average Weather in April in Los Olivos California, United States

In Los Olivos, the month of April is characterized by rising daily high temperatures, with daily highs increasing by 5°F, from 68°F to 73°F over the course of the month, and rarely exceeding 84°F or dropping below 59°F.

Daily low temperatures increase by 3°F, from 41°F to 44°F, rarely falling below 34°F or exceeding 50°F.

For reference, on August 24, the hottest day of the year, temperatures in Los Olivos typically range from 53°F to 85°F, while on January 31, the coldest day of the year, they range from 38°F to 65°F.

Average High and Low Temperature in April

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 April. 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 April

Average Hourly Temperature in April in Los Olivos12 AM4 AM8 AM12 PM4 PM8 PM12 AM18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030MarMaychillycoldcoolcomfortable
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.


The month of April in Los Olivos experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 34% to 26%.

The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 74% of the time.

For reference, on February 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 45%, while on August 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 92%.

Cloud Cover in April

The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.


A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Los Olivos, the chance of a wet day over the course of April is decreasing, starting the month at 11% and ending it at 6%.

For reference, the year's highest daily chance of a wet day is 23% on February 20, and its lowest chance is 0% on August 8.

Probability of Precipitation in April

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).


Over the course of April in Los Olivos, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 59 minutes, implying an average daily increase of 2 minutes, 2 seconds, and weekly increase of 14 minutes, 16 seconds.

The shortest day of the month is April 1, with 12 hours, 35 minutes of daylight and the longest day is April 30, with 13 hours, 34 minutes of daylight.

Hours of Daylight and Twilight in April

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 latest sunrise of the month in Los Olivos is 6:46 AM on April 1 and the earliest sunrise is 36 minutes earlier at 6:10 AM on April 30.

The earliest sunset is 7:21 PM on April 1 and the latest sunset is 23 minutes later at 7:44 PM on April 30.

Daylight saving time is observed in Los Olivos during 2017, but it neither starts nor ends during April, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 5:47 AM and sets 14 hours, 29 minutes later, at 8:16 PM, while on December 21, the shortest day of the year, it rises at 7:03 AM and sets 9 hours, 50 minutes later, at 4:53 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April

The solar day over the course of April. 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.


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 Los Olivos is essentially constant during April, remaining around 0% throughout.

For reference, on August 29, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April

Humidity Comfort Levels in April in Los Olivos0%10%20%30%40%50%60%70%80%90%100%18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030MarMayApr 160%Apr 160%Apr 10%Apr 10%Apr 300%Apr 300%comfortablecomfortabledrydry
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.


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 Los Olivos is essentially constant during April, remaining within 0.1 miles per hour of 5.3 miles per hour throughout.

For reference, on April 26, the windiest day of the year, the daily average wind speed is 5.4 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 3.9 miles per hour.

The highest daily average wind speed during April is 5.4 miles per hour on April 26.

Average Wind Speed in April

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 Los Olivos throughout April is predominantly from the north, with a peak proportion of 55% on April 19.

Wind Direction in April

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Los Olivos 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 Los Olivos is essentially constant during April, remaining around 55°F throughout.

The lowest average surface water temperature during April is 55°F on April 18.

Average Water Temperature in April

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

Solar Energy

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 Los Olivos is increasing during April, rising by 1.2 kWh, from 6.3 kWh to 7.5 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April

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 Los Olivos are 34.668 deg latitude, -120.115 deg longitude, and 915 ft elevation.

The topography within 2 miles of Los Olivos contains significant variations in elevation, with a maximum elevation change of 600 feet and an average elevation above sea level of 923 feet. Within 10 miles contains significant variations in elevation (4,278 feet). Within 50 miles also contains extreme variations in elevation (7,451 feet).

The area within 2 miles of Los Olivos is covered by grassland (86%) and cropland (12%), within 10 miles by grassland (58%) and shrubs (29%), and within 50 miles by water (40%) and shrubs (28%).

Data Sources

This report illustrates the typical weather in Los Olivos year round, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Los Olivos.

For each station, the records are corrected for the elevation difference between that station and Los Olivos 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 Los Olivos is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Los Olivos and a given station.

The stations contributing to this reconstruction are: Santa Ynez Airport (79%, 8 kilometers, southeast); Lompoc Airport (10%, 32 kilometers, west); Santa Maria Airport (9%, 40 kilometers, northwest); and Meadows Field (1.9%, 129 kilometers, northeast).

Other Data

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.

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 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.