Average Weather in Melbourne Florida, United States
Melbourne has a warm humid temperate climate with hot summers and no dry season. The temperature typically varies from 54°F to 89°F over the course of the year, and is rarely below 39°F or above 93°F.
The hot season lasts for 124 days, from May 28 to September 29, with an average daily high temperature above 86°F. The hottest day of the year is July 23, with an average high of 89°F and low of 76°F.
The cool season lasts for 87 days, from December 5 to March 2, with an average daily high temperature below 75°F. The coldest day of the year is January 15, with an average low of 54°F and high of 71°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
The length of the day in Melbourne varies over the course of the year. In 2017, the shortest day is December 21, with 10 hours, 22 minutes of daylight; the longest day is June 21, with 13 hours, 56 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:25 AM on June 10, and the latest sunrise is 1 hour, 11 minutes later at 7:36 AM on November 4. The earliest sunset is at 5:26 PM on December 1, and the latest sunset is 2 hours, 57 minutes later at 8:23 PM on July 1.
Daylight saving time (DST) is observed in Melbourne during 2017, starting in the spring on March 12, lasting 237 days, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
In Melbourne, 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 Melbourne begins around October 2 and lasts for 247 days, ending around June 6. On May 1, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 64% of the time, and overcast or mostly cloudy 36% of the time.
The cloudier part of the year begins around June 6 and lasts for 118 days, ending around October 2. On July 7, the cloudiest day of the year, the sky is overcast or mostly cloudy 69% of the time, and clear, mostly clear, or partly cloudy 31% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Melbourne varies significantly throughout the year.
The wetter season lasts 133 days, from May 28 to October 8, with a greater than 38% chance of a given day being a wet day. The chance of a wet day peaks at 59% on August 24.
The drier season lasts 232 days, from October 8 to May 28. The smallest chance of a wet day is 18% on December 28.
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 59% on August 24.
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 in the year. Melbourne experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Melbourne. The most rain falls during the 31 days centered around August 21, with an average total accumulation of 5.9 inches.
The least rain falls around December 23, with and average total accumulation of 1.9 inches.
Average Monthly Rainfall
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.
Melbourne experiences very significant seasonal variation in the perceived humidity.
The muggier period of the year lasts for 227 days, from April 15 to November 28, during which time the comfort level is muggy, oppressive, or miserable at least 36% of the time. The muggiest day of the year is August 4, with muggy conditions 100% of the time.
The least muggy day of the year is January 30, with muggy conditions 14% of the time.
Humidity Comfort Levels
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 Melbourne experiences mildly seasonal variation over the course of the year.
The windier part of the year lasts for 245 days, from September 25 to May 28, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is March 14, with an average hourly wind speed of 6.1 miles per hour.
The calmer time of year lasts for 120 days, from May 28 to September 25. The calmest day of the year is August 4, with an average hourly wind speed of 3.7 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Melbourne varies throughout the year.
The wind is most often from the east for 124 days, from February 21 to June 25 and for 135 days, from August 10 to December 23, with a peak percentage of 53% on September 24. The wind is most often from the south for 46 days, from June 25 to August 10, with a peak percentage of 43% on July 19. The wind is most often from the north for 60 days, from December 23 to February 21, with a peak percentage of 34% on November 21.
Melbourne 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 some seasonal variation over the course of the year.
The time of year with warmer water lasts for 126 days, from June 13 to October 17, with an average temperature above 80°F. The day of the year with the warmest water is September 1, with an average temperature of 83°F.
The time of year with cooler water lasts for 103 days, from December 26 to April 8, with an average temperature below 73°F. The day of the year with the coolest water is February 6, with an average temperature of 71°F.
Average Water Temperature
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 significant seasonal variation over the course of the year.
The brighter period of the year lasts for 61 days, from April 3 to June 3, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is May 2, with an average of 6.8 kWh.
The darker period of the year lasts for 84 days, from November 8 to January 31, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is December 22, with an average of 3.4 kWh.
Average Daily Incident Shortwave Solar Energy
The area within 2 miles of Melbourne is covered by artificial surfaces (67%) and water (32%), within 10 miles by water (44%) and artificial surfaces (42%), and within 50 miles by water (48%) and herbaceous vegetation (20%).
The topography within 2 miles of Melbourne is essentially flat, with a maximum elevation change of 23 feet, and an average elevation above sea level of 9 feet. Within 10 miles is also essentially flat (33 feet). Within 50 miles contains only modest variations in elevation (131 feet).
This report illustrates the typical weather in Melbourne, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Melbourne.
For each station, the records are are corrected for the elevation difference between that station and Melbourne 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 Melbourne is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Melbourne and a given station.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .