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Climate and Average Weather Year Round in Isola di Ponza Italy

In Isola di Ponza, the summers are short, warm, muggy, dry, and mostly clear and the winters are long, cold, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 50°F to 84°F and is rarely below 44°F or above 88°F.

Based on the beach/pool score, the best time of year to visit Isola di Ponza for hot-weather activities is from mid June to early September.

Climate in Isola di Ponza

coolcoolwarmcomfortablecoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow91%91%54%54%clearovercastprecipitation: 4.4 inprecipitation: 4.4 in0.5 in0.5 inmuggy: 91%muggy: 91%0%0%drydrybeach/pool score: 8.6beach/pool score: 8.60.00.0
Isola di Ponza weather by month. Click on each chart for more information.

The warm season lasts for 2.8 months, from June 18 to September 12, with an average daily high temperature above 78°F. The hottest month of the year in Isola di Ponza is August, with an average high of 83°F and low of 75°F.

The cool season lasts for 4.3 months, from November 26 to April 4, with an average daily high temperature below 61°F. The coldest month of the year in Isola di Ponza is February, with an average low of 50°F and high of 55°F.

Average High and Low Temperature in Isola di Ponza

Average High and Low Temperature in Isola di PonzawarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 1155°FFeb 1155°FAug 684°FAug 684°F50°F50°F75°F75°FJun 1878°FJun 1878°FSep 1278°FSep 1278°FNov 2661°FNov 2661°FApr 461°FApr 461°F69°F69°F71°F71°F56°F56°F54°F54°FNowNow
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.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 55°F55°F58°F63°F70°F78°F83°F83°F78°F71°F63°F58°F
Temp. 53°F52°F55°F59°F66°F73°F78°F79°F74°F68°F61°F55°F
Low 51°F50°F52°F56°F62°F69°F74°F75°F71°F65°F58°F53°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, 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 Isola di Ponza

Average Hourly Temperature in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowcoldcoldcoolcoolcomfortablecomfortablewarmcold
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.
Map
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© OpenStreetMap contributors

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In Isola di Ponza, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Isola di Ponza begins around June 9 and lasts for 3.0 months, ending around September 9.

The clearest month of the year in Isola di Ponza is July, during which on average the sky is clear, mostly clear, or partly cloudy 90% of the time.

The cloudier part of the year begins around September 9 and lasts for 9.0 months, ending around June 9.

The cloudiest month of the year in Isola di Ponza is January, during which on average the sky is overcast or mostly cloudy 45% of the time.

Cloud Cover Categories in Isola di Ponza

Cloud Cover Categories in Isola di PonzaclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 1991%Jul 1991%Jan 1354%Jan 1354%Jun 972%Jun 972%Sep 973%Sep 973%NowNowclearmostly 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.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 45%42%41%40%37%23%10%15%30%41%44%44%
Clearer 55%58%59%60%63%77%90%85%70%59%56%56%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Isola di Ponza varies significantly throughout the year.

The wetter season lasts 7.8 months, from September 7 to April 30, with a greater than 23% chance of a given day being a wet day. The month with the most wet days in Isola di Ponza is November, with an average of 11.2 days with at least 0.04 inches of precipitation.

The drier season lasts 4.2 months, from April 30 to September 7. The month with the fewest wet days in Isola di Ponza is July, with an average of 2.1 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Isola di Ponza is November, with an average of 11.2 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 39% on November 16.

Daily Chance of Precipitation in Isola di Ponza

Daily Chance of Precipitation in Isola di PonzawetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Nov 1639%Nov 1639%Jul 66%Jul 66%Sep 723%Sep 723%Apr 3023%Apr 3023%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).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 8.3d8.2d7.6d7.4d5.3d3.3d2.1d3.5d7.7d9.6d11.2d10.0d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Isola di Ponza experiences significant seasonal variation in monthly rainfall.

Rain falls throughout the year in Isola di Ponza. The month with the most rain in Isola di Ponza is November, with an average rainfall of 4.3 inches.

The month with the least rain in Isola di Ponza is July, with an average rainfall of 0.5 inches.

Average Monthly Rainfall in Isola di Ponza

Average Monthly Rainfall in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 inNov 174.4 inNov 174.4 inJul 100.5 inJul 100.5 inJan 52.7 inJan 52.7 inNowNow
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.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 2.7″2.5″2.0″1.8″1.2″0.7″0.5″0.8″2.5″3.5″4.3″3.2″

The length of the day in Isola di Ponza varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 14 minutes of daylight; the longest day is June 20, with 15 hours, 7 minutes of daylight.

Hours of Daylight and Twilight in Isola di Ponza

Hours of Daylight and Twilight in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 7 minJun 2015 hr, 7 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 14 minDec 219 hr, 14 minDec 21nightnightdayNowNow
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.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.6h10.7h12.0h13.3h14.5h15.1h14.8h13.7h12.4h11.1h9.9h9.3h

The earliest sunrise is at 5:35 AM on June 14, and the latest sunrise is 1 hour, 57 minutes later at 7:32 AM on January 5. The earliest sunset is at 4:40 PM on December 8, and the latest sunset is 4 hours, 4 minutes later at 8:44 PM on June 27.

Daylight saving time (DST) is observed in Isola di Ponza during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

Sunrise & Sunset with Twilight and Daylight Saving Time in Isola di Ponza

Sunrise & Sunset with Twilight and Daylight Saving Time in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:35 AMJun 145:35 AM8:44 PMJun 278:44 PMJun 27Dec 84:40 PMDec 84:40 PM7:32 AMJan 57:32 AMJan 5Mar 31DSTMar 31DSTDSTOct 27DSTOct 27daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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 Isola di Ponza

Solar Elevation and Azimuth in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010202020303030304040505060607000010101010202020303040405050602673NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 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 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.

Moon Rise, Set & Phases in Isola di Ponza

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.

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.

Isola di Ponza experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.5 months, from May 30 to October 15, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The month with the most muggy days in Isola di Ponza is August, with 26.9 days that are muggy or worse.

The least muggy day of the year is February 22, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Isola di Ponza

Humidity Comfort Levels in Isola di PonzamuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 220%Feb 220%91%Aug 891%Aug 8May 3023%May 3023%Oct 1523%Oct 1523%NowNowmiserablemiserableoppressiveoppressivemuggymuggydrydryhumidhumid
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.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d2.9d14.9d25.4d26.9d18.1d7.1d0.7d0.0d

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 Isola di Ponza experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 21 to April 12, with average wind speeds of more than 10.5 miles per hour. The windiest month of the year in Isola di Ponza is December, with an average hourly wind speed of 12.8 miles per hour.

The calmer time of year lasts for 6.3 months, from April 12 to October 21. The calmest month of the year in Isola di Ponza is August, with an average hourly wind speed of 8.3 miles per hour.

Average Wind Speed in Isola di Ponza

Average Wind Speed in Isola di PonzawindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mph22 mph22 mphDec 1512.9 mphDec 1512.9 mphAug 118.1 mphAug 118.1 mphOct 2110.5 mphOct 2110.5 mphApr 1210.5 mphApr 1210.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 12.111.911.110.39.08.48.48.38.910.212.112.8

The predominant average hourly wind direction in Isola di Ponza is from the west throughout the year.

Wind Direction in Isola di Ponza

Wind Direction in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
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).

Isola di Ponza 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 water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.8 months, from June 29 to September 22, with an average temperature above 74°F. The month of the year in Isola di Ponza with the warmest water is August, with an average temperature of 78°F.

The time of year with cooler water lasts for 4.4 months, from December 14 to April 28, with an average temperature below 61°F. The month of the year in Isola di Ponza with the coolest water is February, with an average temperature of 57°F.

Average Water Temperature in Isola di Ponza

Average Water Temperature in Isola di PonzawarmcoolJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°FAug 1178°FAug 1178°F57°FFeb 2657°FFeb 26Jun 2974°FJun 2974°FSep 2274°FSep 2274°FDec 1461°FDec 1461°FApr 2861°FApr 2861°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 59°F57°F58°F60°F65°F72°F77°F78°F75°F71°F66°F61°F

To characterize how pleasant the weather is in Isola di Ponza throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Isola di Ponza for general outdoor tourist activities are from mid May to mid July and from early September to mid October, with a peak score in the second week of June.

Tourism Score in Isola di Ponza

Tourism Score in Isola di Ponzabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.08.02.82.87.67.66.26.2NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Isola di Ponza for hot-weather activities is from mid June to early September, with a peak score in the second week of July.

Beach/Pool Score in Isola di Ponza

Beach/Pool Score in Isola di Ponzabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.68.60.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Isola di Ponza 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 Isola di Ponza

Time Spent in Various Temperature Bands and the Growing Season in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcoldcoolcomfortablewarmhotvery cold
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.

Growing Degree Days in Isola di Ponza

Growing Degree Days in Isola di PonzaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FJan 2690°FJan 2690°FMay 19900°FMay 19900°FJun 301,800°FJun 301,800°FDec 315,306°FDec 315,306°FNowNow
The average growing degree days accumulated over the course of the year, 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 experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.3 months, from May 6 to August 15, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Isola di Ponza is June, with an average of 7.6 kWh.

The darker period of the year lasts for 3.6 months, from October 27 to February 14, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest month of the year in Isola di Ponza is December, with an average of 1.9 kWh.

Average Daily Incident Shortwave Solar Energy in Isola di Ponza

Average Daily Incident Shortwave Solar Energy in Isola di PonzabrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 57.8 kWhJul 57.8 kWhDec 221.8 kWhDec 221.8 kWhMay 66.6 kWhMay 66.6 kWhAug 156.6 kWhAug 156.6 kWhOct 273.0 kWhOct 273.0 kWhFeb 143.0 kWhFeb 143.0 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.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.13.14.45.87.07.67.66.65.03.52.31.9

For the purposes of this report, the geographical coordinates of Isola di Ponza are 40.900 deg latitude, 12.950 deg longitude, and 0 ft elevation.

The topography within 2 miles of Isola di Ponza is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Isola di Ponza is covered by water (81%), within 10 miles by water (99%), and within 50 miles by water (87%).

This report illustrates the typical weather in Isola di Ponza, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Ponza page.

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.

Please review our full terms contained on our Terms of Service page.