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April Weather in Rome Italy

Daily high temperatures increase by 6°F, from 63°F to 69°F, rarely falling below 56°F or exceeding 76°F.

Daily low temperatures increase by 5°F, from 44°F to 50°F, rarely falling below 38°F or exceeding 55°F.

For reference, on August 5, the hottest day of the year, temperatures in Rome typically range from 66°F to 89°F, while on January 13, the coldest day of the year, they range from 37°F to 53°F.

Average High and Low Temperature in April in Rome

Average High and Low Temperature in April in Rome1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303030°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°FMarMayApr 163°FApr 163°F44°F44°FApr 3069°FApr 3069°F50°F50°FApr 1165°FApr 1165°F46°F46°FApr 2167°FApr 2167°F48°F48°F
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 Rome

Average Hourly Temperature in April in Rome1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMayvery coldcoldcoldcoolcomfortablewarm
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.

Alta Sierra, California, United States (6,132 miles away) is the far-away foreign place with temperatures most similar to Rome (view comparison).

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Marker
© Esri, et al.

Compare Rome to another city:

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The month of April in Rome experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the month.

The clearest day of the month is April 9, with clear, mostly clear, or partly cloudy conditions 58% of the time.

For reference, on November 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.

Cloud Cover Categories in April in Rome

Cloud Cover Categories in April in Rome181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 157%Apr 157%Apr 3057%Apr 3057%Apr 1157%Apr 1157%Apr 2156%Apr 2156%clearmostly clearpartly cloudymostly cloudyovercast
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 Rome, the chance of a wet day over the course of April is essentially constant, remaining around 24% throughout.

For reference, the year's highest daily chance of a wet day is 34% on November 19, and its lowest chance is 7% on August 6.

Probability of Precipitation in April in Rome

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 Rome is essentially constant, remaining about 1.9 inches throughout, and rarely exceeding 3.5 inches or falling below 0.5 inches.

Average Monthly Rainfall in April in Rome

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 Rome, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 17 minutes, implying an average daily increase of 2 minutes, 40 seconds, and weekly increase of 18 minutes, 40 seconds.

The shortest day of the month is April 1, with 12 hours, 42 minutes of daylight and the longest day is April 30, with 14 hours, 0 minutes of daylight.

Hours of Daylight and Twilight in April in Rome

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 Rome is 6:53 AM on April 1 and the earliest sunrise is 45 minutes earlier at 6:07 AM on April 30.

The earliest sunset is 7:35 PM on April 1 and the latest sunset is 32 minutes later at 8:07 PM on April 30.

Daylight saving time is observed in Rome during 2022, 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 5:34 AM and sets 15 hours, 14 minutes later, at 8:48 PM, while on December 21, the shortest day of the year, it rises at 7:34 AM and sets 9 hours, 8 minutes later, at 4:41 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April in Rome

Sunrise & Sunset with Twilight and Daylight Saving Time in April in Rome181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMMarMay6:07 AM6:07 AMApr 308:07 PMApr 308:07 PM6:53 AM6:53 AMApr 17:35 PMApr 17:35 PM6:36 AM6:36 AMApr 117:46 PMApr 117:46 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
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 key lunar data for April 2022. 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 Rome

Moon Rise, Set & Phases in April in Rome1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 26:35 PMMar 26:35 PMMar 188:18 AMMar 188:18 AMApr 18:25 AMApr 18:25 AMApr 168:56 PMApr 168:56 PMApr 3010:29 PMApr 3010:29 PMMay 166:15 AMMay 166:15 AMMay 301:31 PMMay 301:31 PM6:58 AM6:58 AM5:45 PM5:45 PM5:26 PM5:26 PM6:40 AM6:40 AM7:13 AM7:13 AM7:54 PM7:54 PM7:38 PM7:38 PM6:54 AM6:54 AM6:01 AM6:01 AM7:53 PM7:53 PM7:46 PM7:46 PM5:52 AM5:52 AM5:24 AM5:24 AM8:55 PM8:55 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.
Apr 2022IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%7:13 AME7:54 PMW-1:31 PMS240,501 mi
2
2%7:35 AME9:00 PMWNW-2:14 PMS243,009 mi
3
5%7:58 AMENE10:06 PMWNW-2:58 PMS245,477 mi
4
11%8:23 AMENE11:11 PMWNW-3:43 PMS247,723 mi
5
18%8:52 AMENE--4:29 PMS249,554 mi
6
26%-12:15 AMWNW9:26 AMENE5:18 PMS250,794 mi
7
35%-1:15 AMNW10:06 AMNE6:07 PMS251,300 mi
8
45%-2:11 AMNW10:53 AMNE6:58 PMS250,980 mi
9
50%-3:01 AMNW11:48 AMNE7:48 PMS249,809 mi
10
64%-3:44 AMNW12:48 PMENE8:37 PMS247,834 mi
11
74%-4:20 AMWNW1:52 PMENE9:25 PMS245,178 mi
12
82%-4:51 AMWNW2:58 PMENE10:12 PMS242,028 mi
13
90%-5:17 AMWNW4:06 PMENE10:57 PMS238,627 mi
14
96%-5:42 AMW5:15 PME11:43 PMS235,252 mi
15
98%-6:05 AMW6:26 PME--
16
100%-6:28 AMW7:38 PME12:29 AMS232,185 mi
17
100%-6:54 AMWSW8:54 PMESE1:17 AMS229,680 mi
18
98%-7:23 AMWSW10:12 PMESE2:09 AMS227,926 mi
19
93%-7:57 AMWSW11:31 PMESE3:05 AMS227,022 mi
20
86%-8:41 AMSW-4:06 AMS226,965 mi
21
76%12:45 AMSE9:34 AMSW-5:10 AMS227,663 mi
22
65%1:51 AMSE10:38 AMSW-6:15 AMS228,962 mi
23
50%2:45 AMSE11:49 AMSW-7:18 AMS230,684 mi
24
42%3:29 AMESE1:03 PMWSW-8:16 AMS232,667 mi
25
31%4:03 AMESE2:17 PMWSW-9:09 AMS234,789 mi
26
21%4:31 AMESE3:27 PMWSW-9:58 AMS236,970 mi
27
13%4:55 AME4:36 PMW-10:44 AMS239,169 mi
28
6%5:17 AME5:42 PMW-11:28 AMS241,360 mi
29
2%5:39 AME6:48 PMW-12:10 PMS243,521 mi
30
0%6:01 AMENE7:53 PMWNW-12:53 PMS245,610 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 Rome is essentially constant during April, remaining around 0% throughout.

For reference, on August 10, the muggiest day of the year, there are muggy conditions 51% of the time, while on December 2, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in April in Rome

Humidity Comfort Levels in April in Rome181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 10%Apr 10%Apr 300%Apr 300%Apr 110%Apr 110%Apr 210%Apr 210%humidhumidcomfortablecomfortabledrydry
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 Rome is gradually decreasing during April, decreasing from 8.4 miles per hour to 7.7 miles per hour over the course of the month.

For reference, on April 3, the windiest day of the year, the daily average wind speed is 8.5 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.

The highest daily average wind speed during April is 8.5 miles per hour on April 4.

Average Wind Speed in April in Rome

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 Rome throughout April is predominantly from the south, with a peak proportion of 32% on April 17.

Wind Direction in April in Rome

Wind Direction in April in RomeSW181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMaywestsoutheastnorth
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).

Rome 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 Rome is gradually increasing during April, rising by 3°F, from 58°F to 61°F, over the course of the month.

Average Water Temperature in April in Rome

Average Water Temperature in April in Rome1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303054°F54°F56°F56°F58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°FMarMayApr 158°FApr 158°FApr 3061°FApr 3061°FApr 1159°FApr 1159°FApr 2160°FApr 2160°F
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).

The growing season in Rome typically lasts for 9.2 months (281 days), from around March 2 to around December 8, rarely starting before February 5 or after March 25, and rarely ending before November 13 or after January 1.

The month of April in Rome is very likely fully within the growing season, with the chance that a given day is in the growing season gradually increasing from 96% to 100% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in April in Rome

Time Spent in Various Temperature Bands and the Growing Season in April in Romegrowing season181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay96%Apr 196%Apr 1100%Apr 30100%Apr 3098%Apr 1198%Apr 11100%Apr 21100%Apr 2150%Mar 250%Mar 2very coldcoldcoolcomfortablewarm
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 Rome are increasing during April, increasing by 214°F, from 210°F to 424°F, over the course of the month.

Growing Degree Days in April in Rome

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 Rome is increasing during April, rising by 1.1 kWh, from 5.0 kWh to 6.1 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April in Rome

Average Daily Incident Shortwave Solar Energy in April in Rome181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhMarMayApr 15.0 kWhApr 15.0 kWhApr 306.1 kWhApr 306.1 kWhApr 115.4 kWhApr 115.4 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 Rome are 41.892 deg latitude, 12.511 deg longitude, and 171 ft elevation.

The topography within 2 miles of Rome contains only modest variations in elevation, with a maximum elevation change of 249 feet and an average elevation above sea level of 152 feet. Within 10 miles contains only modest variations in elevation (938 feet). Within 50 miles contains very significant variations in elevation (8,110 feet).

The area within 2 miles of Rome is covered by artificial surfaces (97%), within 10 miles by cropland (54%) and artificial surfaces (43%), and within 50 miles by cropland (36%) and water (33%).

This report illustrates the typical weather in Rome, 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 Rome.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Rome and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

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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