Climate and Average Weather Year Round in Latium Italy

We show the climate in Latium by comparing the average weather in 3 representative places: Rome, Fiumicino-Isola Sacra, and Guidonia Montecelio.

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Average High and Low Temperature in Latium

Average High and Low Temperature in LatiumJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F66378953408432913532NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Rome 54°F56°F60°F66°F74°F81°F87°F87°F80°F72°F62°F55°F
Fiumicino-Isola Sacra 55°F56°F59°F64°F71°F78°F83°F83°F78°F71°F63°F57°F
Guidonia Montecelio 54°F56°F61°F67°F75°F83°F89°F89°F81°F72°F62°F56°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Rome 37°F38°F42°F47°F54°F60°F65°F65°F60°F53°F45°F39°F
Fiumicino-Isola Sacra 40°F41°F44°F48°F55°F62°F66°F67°F62°F56°F49°F43°F
Guidonia Montecelio 37°F38°F42°F47°F53°F60°F64°F65°F59°F53°F45°F39°F

Rome

Average Hourly Temperature in RomeJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolwarmhotvery coldvery coldvery cold

Fiumicino-Isola Sacra

Average Hourly Temperature in Fiumicino-Isola SacraJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolwarm

Guidonia Montecelio

Average Hourly Temperature in Guidonia MontecelioJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolwarmhotvery coldvery 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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Latium

Chance of Clearer Skies in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%885254NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Rome 53%56%56%57%61%75%87%82%68%57%53%54%
Fiumicino-Isola Sacra 55%58%58%58%62%75%88%83%69%58%55%56%
Guidonia Montecelio 52%54%54%55%60%74%86%82%67%56%51%52%

Daily Chance of Precipitation in Latium

Daily Chance of Precipitation in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%347Guidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Rome 7.0d7.3d6.8d7.0d5.9d4.1d2.6d3.2d6.9d8.6d9.5d7.7d
Fiumicino-Isola Sacra 7.3d7.3d6.8d7.1d5.7d3.8d2.5d3.2d7.2d9.0d10.3d8.6d
Guidonia Montecelio 6.8d7.1d6.6d6.9d6.2d4.4d3.4d3.5d6.9d8.5d9.3d7.7d

Average Monthly Rainfall in Latium

Average Monthly Rainfall in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in3.70.64.03.4NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Rome 2.1″2.4″1.9″1.9″1.5″1.0″0.7″0.9″2.4″3.4″3.7″2.8″
Fiumicino-Isola Sacra 2.3″2.4″2.0″2.1″1.6″1.0″0.6″0.9″2.5″3.6″4.0″3.0″
Guidonia Montecelio 2.0″2.3″1.8″1.8″1.5″1.1″0.7″0.9″2.2″3.1″3.4″2.6″

Hours of Daylight in Latium

Hours of Daylight in LatiumJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.29.1NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Rome 9.5h10.6h12.0h13.4h14.6h15.2h14.8h13.8h12.4h11.0h9.8h9.2h
Fiumicino-Isola Sacra 9.6h10.6h12.0h13.4h14.6h15.2h14.8h13.8h12.4h11.0h9.8h9.2h
Guidonia Montecelio 9.5h10.6h12.0h13.4h14.6h15.2h14.9h13.8h12.4h11.0h9.8h9.2h

Chance of Muggy Conditions in Latium

Chance of Muggy Conditions in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%516842NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Rome 0.0d0.0d0.0d0.0d0.5d4.9d12.7d14.3d6.9d1.9d0.1d0.0d
Fiumicino-Isola Sacra 0.0d0.0d0.0d0.0d1.4d9.1d18.5d19.3d9.8d3.0d0.2d0.0d
Guidonia Montecelio 0.0d0.0d0.0d0.0d0.4d3.7d9.7d11.8d5.4d1.8d0.2d0.0d

Average Wind Speed in Latium

Average Wind Speed in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph11 mph11 mph8.56.810.27.47.66.3NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Rome 7.78.18.28.17.37.07.06.97.17.68.18.1
Fiumicino-Isola Sacra 9.59.89.69.38.27.77.67.58.08.89.910.1
Guidonia Montecelio 6.77.17.37.26.66.46.56.46.46.67.17.0

Average Water Temperature in Latium

Average Water Temperature in LatiumJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F7857NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Rome 58°F57°F57°F60°F65°F71°F76°F77°F74°F70°F65°F61°F
Fiumicino-Isola Sacra 58°F57°F57°F59°F65°F71°F76°F77°F74°F70°F65°F61°F
Guidonia Montecelio 58°F57°F57°F59°F65°F71°F76°F77°F74°F70°F65°F61°F

Tourism Score in Latium

Tourism Score in LatiumJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.61.28.1NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Latium

Beach/Pool Score in LatiumJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.5NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola Sacra
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Latium

Growing Season in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The percentage chance that a given day is within the growing season, defined 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).

Growing Degree Days in Latium

Growing Degree Days in LatiumJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FNowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Latium

Average Daily Incident Shortwave Solar Energy in LatiumJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh7.71.7NowNowGuidonia MontecelioGuidonia MontecelioFiumicino-Isola SacraFiumicino-Isola SacraRomeRome
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Rome 2.03.04.35.66.87.57.56.54.93.42.21.8
Fiumicino-Isola Sacra 2.03.04.45.76.87.67.66.55.03.42.31.8
Guidonia Montecelio 2.02.94.35.56.77.57.56.54.93.42.21.7

This report illustrates the typical weather for Rome, Fiumicino-Isola Sacra, and Guidonia Montecelio year round, 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 on this page vary between places and are discussed in detail on each place's dedicated 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.

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