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April Weather in Rosario Mexico

Daily high temperatures increase by 7°F, from 85°F to 92°F, rarely falling below 77°F or exceeding 99°F.

Daily low temperatures increase by 6°F, from 54°F to 60°F, rarely falling below 47°F or exceeding 66°F.

For reference, on June 14, the hottest day of the year, temperatures in Rosario typically range from 72°F to 99°F, while on January 7, the coldest day of the year, they range from 46°F to 75°F.

Average High and Low Temperature in April in Rosario

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 in Rosario

Average Hourly Temperature in April in RosarioApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMayNowNowcoldcoolcoolcomfortablecomfortablewarmhotswelteringwarm
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.

Tses, Namibia (9,225 miles away) is the far-away foreign place with temperatures most similar to Rosario (view comparison).

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The month of April in Rosario experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 32% throughout the month.

The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 70% of the time.

For reference, on July 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 66%, while on June 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 84%.

Cloud Cover Categories in April in Rosario

Cloud Cover Categories in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 167%Apr 167%Apr 3070%Apr 3070%Apr 1167%Apr 1167%Apr 2168%Apr 2168%NowNowclearovercastmostly clearmostly cloudypartly 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 Rosario, the chance of a wet day over the course of April is essentially constant, remaining around 3% throughout.

For reference, the year's highest daily chance of a wet day is 65% on July 29, and its lowest chance is 2% on April 23.

Probability of Precipitation in April in Rosario

Probability of Precipitation in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0%0.0%0.5%0.5%1.0%1.0%1.5%1.5%2.0%2.0%2.5%2.5%3.0%3.0%3.5%3.5%4.0%4.0%4.5%4.5%5.0%5.0%5.5%5.5%6.0%6.0%MarMayApr 232%Apr 232%Apr 13%Apr 13%Apr 303%Apr 303%Apr 113%Apr 113%NowNowrain
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 April in Rosario is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.6 inches or falling below -0.0 inches.

The lowest average 31-day accumulation is 0.2 inches on April 13.

Average Monthly Rainfall in April in Rosario

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 April in Rosario, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 45 minutes, implying an average daily increase of 1 minute, 33 seconds, and weekly increase of 10 minutes, 51 seconds.

The shortest day of the month is April 1, with 12 hours, 28 minutes of daylight and the longest day is April 30, with 13 hours, 13 minutes of daylight.

Hours of Daylight and Twilight in April in Rosario

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 Rosario is 6:07 AM on April 1 and the earliest sunrise is 29 minutes earlier at 5:38 AM on April 30.

The earliest sunset is 6:35 PM on April 1 and the latest sunset is 16 minutes later at 6:51 PM on April 30.

Daylight saving time is not observed in Rosario during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:22 AM and sets 13 hours, 54 minutes later, at 7:16 PM, while on December 21, the shortest day of the year, it rises at 7:04 AM and sets 10 hours, 23 minutes later, at 5:27 PM.

Sunrise & Sunset with Twilight in April in Rosario

Sunrise & Sunset with Twilight in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay5:38 AM5:38 AMApr 306:51 PMApr 306:51 PM6:07 AM6:07 AMApr 16:35 PMApr 16:35 PM5:56 AM5:56 AMApr 116:40 PMApr 116:40 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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.

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 April in Rosario

Solar Elevation and Azimuth in April in RosarioApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay00101020202030304040505050606070800001010202030303040405050606070NowNow
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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 April in Rosario

Moon Rise, Set & Phases in April in RosarioApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 102:01 AMMar 102:01 AMMar 2512:01 AMMar 2512:01 AMApr 811:22 AMApr 811:22 AMApr 234:50 PMApr 234:50 PMMay 78:23 PMMay 78:23 PMMay 236:54 AMMay 236:54 AM6:50 AM6:50 AM7:05 PM7:05 PM6:15 PM6:15 PM6:29 AM6:29 AM5:53 AM5:53 AM6:55 PM6:55 PM6:49 PM6:49 PM5:58 AM5:58 AM5:01 AM5:01 AM6:50 PM6:50 PM6:36 PM6:36 PM5:12 AM5:12 AM
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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
50%12:53 AMESE11:03 AMWSW-5:58 AMS237,532 mi
2
45%1:49 AMESE12:07 PMWSW-6:58 AMS234,164 mi
3
34%2:40 AMESE1:14 PMWSW-7:58 AMS230,803 mi
4
23%3:26 AMESE2:23 PMWSW-8:55 AMS227,714 mi
5
13%4:06 AMESE3:32 PMWSW-9:49 AMS225,197 mi
6
6%4:43 AME4:40 PMW-10:41 AMS223,543 mi
7
1%5:18 AME5:48 PMW-11:31 AMS222,980 mi
8
0%5:53 AME6:55 PMWNW-12:22 PMS223,625 mi
9
2%6:30 AMENE8:04 PMWNW-1:14 PMS225,451 mi
10
6%7:09 AMENE9:14 PMWNW-2:08 PMS228,288 mi
11
14%7:54 AMENE10:22 PMWNW-3:05 PMS231,854 mi
12
22%8:43 AMENE11:27 PMWNW-4:04 PMS235,800 mi
13
32%9:38 AMENE--5:02 PMN239,771 mi
14
43%-12:25 AMWNW10:36 AMENE5:58 PMS243,454 mi
15
50%-1:16 AMWNW11:36 AMENE6:50 PMS246,610 mi
16
63%-2:00 AMWNW12:34 PMENE7:38 PMS249,086 mi
17
72%-2:37 AMWNW1:31 PMENE8:23 PMS250,809 mi
18
80%-3:10 AMWNW2:25 PMENE9:04 PMS251,777 mi
19
87%-3:39 AMWNW3:18 PME9:44 PMS252,039 mi
20
93%-4:06 AMW4:09 PME10:22 PMS251,679 mi
21
97%-4:32 AMW5:01 PME11:01 PMS250,800 mi
22
100%-4:59 AMW5:54 PME11:41 PMS249,506 mi
23
100%-5:27 AMWSW6:49 PMESE--
24
100%-5:58 AMWSW7:46 PMESE12:23 AMS247,890 mi
25
98%-6:34 AMWSW8:46 PMESE1:10 AMS246,029 mi
26
94%-7:15 AMWSW9:47 PMESE2:00 AMS243,973 mi
27
89%-8:02 AMWSW10:47 PMESE2:54 AMS241,755 mi
28
81%-8:58 AMWSW11:44 PMESE3:52 AMS239,399 mi
29
71%-9:59 AMWSW-4:52 AMS236,935 mi
30
61%12:36 AMESE11:04 AMWSW-5:51 AMS234,415 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 Rosario is essentially constant during April, remaining around 0% throughout.

For reference, on August 17, the muggiest day of the year, there are muggy conditions 93% of the time, while on April 13, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April in Rosario

Humidity Comfort Levels in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 130%Apr 130%Apr 10%Apr 10%Apr 300%Apr 300%Apr 210%Apr 210%drydryhumidhumidcomfortablecomfortable
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 Rosario is essentially constant during April, remaining within 0.2 miles per hour of 7.2 miles per hour throughout.

For reference, on May 28, the windiest day of the year, the daily average wind speed is 7.6 miles per hour, while on August 16, the calmest day of the year, the daily average wind speed is 4.3 miles per hour.

Average Wind Speed in April in Rosario

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 Rosario throughout April is predominantly from the west, with a peak proportion of 39% on April 23.

Wind Direction in April in Rosario

Wind Direction in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMayNowNowwestsoutheastnorth
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).

Rosario 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 Rosario is increasing during April, rising by 4°F, from 68°F to 72°F, over the course of the month.

Average Water Temperature in April in Rosario

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 Rosario 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 April in Rosario

Time Spent in Various Temperature Bands and the Growing Season in April in Rosariogrowing seasonApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay100%Apr 16100%Apr 16NowNowcoldcoolcomfortablewarmhotsweltering
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 Rosario are rapidly increasing during April, increasing by 626°F, from 1,194°F to 1,820°F, over the course of the month.

Growing Degree Days in April in Rosario

The average growing degree days accumulated over the course of April, 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 Rosario is gradually increasing during April, rising by 0.8 kWh, from 6.9 kWh to 7.7 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April in Rosario

Average Daily Incident Shortwave Solar Energy in April in RosarioApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMarMayApr 16.9 kWhApr 16.9 kWhApr 307.7 kWhApr 307.7 kWhApr 117.2 kWhApr 117.2 kWhNowNow
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 Rosario are 27.841 deg latitude, -109.368 deg longitude, and 1,388 ft elevation.

The topography within 2 miles of Rosario contains significant variations in elevation, with a maximum elevation change of 794 feet and an average elevation above sea level of 1,443 feet. Within 10 miles contains significant variations in elevation (2,362 feet). Within 50 miles contains large variations in elevation (7,651 feet).

The area within 2 miles of Rosario is covered by trees (96%), within 10 miles by trees (100%), and within 50 miles by trees (89%).

This report illustrates the typical weather in Rosario, 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, Ciudad Obregón International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Rosario.

At a distance of 68 kilometers from Rosario, 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 Rosario 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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