Average Weather in Salerno Italy
In Salerno, the summers are short, hot, humid, dry, and mostly clear and the winters are long, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 43°F to 90°F and is rarely below 36°F or above 96°F.
Based on the beach/pool score, the best time of year to visit Salerno for hot-weather activities is from mid June to early September.
The hot season lasts for 2.9 months, from June 16 to September 11, with an average daily high temperature above 83°F. The hottest day of the year is August 5, with an average high of 90°F and low of 72°F.
The cool season lasts for 4.0 months, from November 21 to March 21, with an average daily high temperature below 62°F. The coldest day of the year is February 8, with an average low of 43°F and high of 55°F.
Average High and Low Temperature
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
Buxton, North Carolina, United States (4,712 miles away); Feiluan, China (5,756 miles); and Ijūin, Japan (5,977 miles) are the far-away foreign places with temperatures most similar to Salerno (view comparison).
In Salerno, 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 Salerno begins around June 8 and lasts for 3.2 months, ending around September 14. On July 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 91% of the time, and overcast or mostly cloudy 9% of the time.
The cloudier part of the year begins around September 14 and lasts for 8.8 months, ending around June 8. On January 13, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Salerno varies throughout the year.
The wetter season lasts 7.6 months, from September 17 to May 3, with a greater than 21% chance of a given day being a wet day. The chance of a wet day peaks at 35% on December 4.
The drier season lasts 4.4 months, from May 3 to September 17. The smallest chance of a wet day is 8% on July 7.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 35% on December 4.
Daily Chance of Precipitation
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. Salerno experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Salerno. The most rain falls during the 31 days centered around November 19, with an average total accumulation of 3.4 inches.
The least rain falls around July 7, with an average total accumulation of 0.5 inches.
Average Monthly Rainfall
The length of the day in Salerno varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 15 minutes of daylight; the longest day is June 21, with 15 hours, 5 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:29 AM on June 14, and the latest sunrise is 1 hour, 56 minutes later at 7:25 AM on October 27. The earliest sunset is at 4:33 PM on December 8, and the latest sunset is 4 hours, 3 minutes later at 8:36 PM on June 28.
Daylight saving time (DST) is observed in Salerno during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
Salerno experiences extreme seasonal variation in the perceived humidity.
The muggier period of the year lasts for 3.5 months, from June 12 to September 27, during which time the comfort level is muggy, oppressive, or miserable at least 13% of the time. The muggiest day of the year is August 10, with muggy conditions 53% of the time.
The least muggy day of the year is February 23, when muggy conditions are essentially unheard of.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Salerno experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.7 months, from October 23 to April 14, with average wind speeds of more than 7.6 miles per hour. The windiest day of the year is December 21, with an average hourly wind speed of 9.3 miles per hour.
The calmer time of year lasts for 6.3 months, from April 14 to October 23. The calmest day of the year is August 6, with an average hourly wind speed of 5.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Salerno varies throughout the year.
The wind is most often from the west for 8.3 months, from March 2 to November 11 and for 4.0 weeks, from November 18 to December 16, with a peak percentage of 52% on June 29. The wind is most often from the south for 1.0 weeks, from November 11 to November 18, with a peak percentage of 28% on November 12. The wind is most often from the north for 2.5 months, from December 16 to March 2, with a peak percentage of 30% on January 1.
Salerno 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 2.9 months, from June 28 to September 24, with an average temperature above 75°F. The day of the year with the warmest water is August 13, with an average temperature of 79°F.
The time of year with cooler water lasts for 4.2 months, from December 20 to April 28, with an average temperature below 62°F. The day of the year with the coolest water is February 27, with an average temperature of 57°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Salerno 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 Salerno for general outdoor tourist activities are from early May to early July and from early September to mid October, with a peak score in the first week of June.
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 Salerno for hot-weather activities is from mid June to early September, with a peak score in the first week of July.
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.
While it does not do so every year, freezing temperatures are seen in Salerno over some winters. The day least likely to be in the growing season is January 12, with a 64% chance.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Salerno should appear around February 14, only rarely appearing before January 27 or after March 9.
Growing Degree Days
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 3.2 months, from May 11 to August 18, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is July 6, with an average of 7.7 kWh.
The darker period of the year lasts for 3.6 months, from October 29 to February 16, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest day of the year is December 23, with an average of 1.8 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Salerno are 40.675 deg latitude, 14.793 deg longitude, and 331 ft elevation.
The topography within 2 miles of Salerno contains very significant variations in elevation, with a maximum elevation change of 1,243 feet and an average elevation above sea level of 282 feet. Within 10 miles contains very significant variations in elevation (5,226 feet). Within 50 miles also contains extreme variations in elevation (6,260 feet).
The area within 2 miles of Salerno is covered by artificial surfaces (35%), cropland (24%), water (23%), and trees (16%), within 10 miles by water (31%) and trees (30%), and within 50 miles by water (36%) and cropland (34%).
This report illustrates the typical weather in Salerno, 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 Salerno.
For each station, the records are corrected for the elevation difference between that station and Salerno 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 Salerno is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Salerno and a given station.
The stations contributing to this reconstruction are: Capri (35%, 48 kilometers, west); Naples International Airport (38%, 49 kilometers, northwest); Trevico (11%, 56 kilometers, northeast); and Capo Palinuro (16%, 84 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .