Climate and Average Weather Year Round in Melville Australia

In Melville, the summers are sweltering; the winters are cool; and it is dry, windy, and mostly clear year round. Over the course of the year, the temperature typically varies from 44°F to 102°F and is rarely below 37°F or above 110°F.

Based on the tourism score, the best times of year to visit Melville for warm-weather activities are from mid February to late April and from late October to late January.

The hot season lasts for 3.3 months, from December 2 to March 13, with an average daily high temperature above 95°F. The hottest month of the year in Melville is January, with an average high of 102°F and low of 71°F.

The cool season lasts for 3.3 months, from May 22 to September 1, with an average daily high temperature below 74°F. The coldest month of the year in Melville is July, with an average low of 44°F and high of 67°F.

In Melville, 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 Melville begins around June 13 and lasts for 7.3 months, ending around January 22.

The clearest month of the year in Melville is September, during which on average the sky is clear, mostly clear, or partly cloudy 94% of the time.

The cloudier part of the year begins around January 22 and lasts for 4.7 months, ending around June 13.

The cloudiest month of the year in Melville is April, during which on average the sky is overcast or mostly cloudy 30% 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 Melville varies throughout the year.

The wetter season lasts 6.9 months, from January 16 to August 13, with a greater than 11% chance of a given day being a wet day. The month with the most wet days in Melville is June, with an average of 5.1 days with at least 0.04 inches of precipitation.

The drier season lasts 5.1 months, from August 13 to January 16. The month with the fewest wet days in Melville is October, with an average of 1.4 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 Melville is June, with an average of 5.1 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 18% on June 16.

Rainfall

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. Melville experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.3 months, from December 20 to August 29, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Melville is June, with an average rainfall of 1.1 inches.

The rainless period of the year lasts for 3.7 months, from August 29 to December 20. The month with the least rain in Melville is October, with an average rainfall of 0.2 inches.

The length of the day in Melville varies over the course of the year. In 2024, the shortest day is June 21, with 10 hours, 21 minutes of daylight; the longest day is December 21, with 13 hours, 56 minutes of daylight.

The earliest sunrise is at 5:08 AM on December 1, and the latest sunrise is 1 hour, 57 minutes later at 7:05 AM on July 2. The earliest sunset is at 5:24 PM on June 9, and the latest sunset is 1 hour, 50 minutes later at 7:14 PM on January 11.

Daylight saving time (DST) is not observed in Melville during 2024.

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.

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 perceived humidity level in Melville, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 3% of 3% throughout.

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 Melville experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from October 2 to March 27, with average wind speeds of more than 11.2 miles per hour. The windiest month of the year in Melville is December, with an average hourly wind speed of 12.5 miles per hour.

The calmer time of year lasts for 6.2 months, from March 27 to October 2. The calmest month of the year in Melville is July, with an average hourly wind speed of 9.7 miles per hour.

The predominant average hourly wind direction in Melville varies throughout the year.

The wind is most often from the east for 7.2 months, from January 15 to August 21, with a peak percentage of 50% on March 4. The wind is most often from the south for 4.8 months, from August 21 to January 15, with a peak percentage of 41% on January 1.

To characterize how pleasant the weather is in Melville 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 Melville for general outdoor tourist activities are from mid February to late April and from late October to late January, with a peak score in the last week of November.

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 Melville for hot-weather activities is from mid December to mid March, with a peak score in the second week of February.

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 Melville 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.

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.

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 3.7 months, from October 20 to February 11, with an average daily incident shortwave energy per square meter above 7.7 kWh. The brightest month of the year in Melville is December, with an average of 8.8 kWh.

The darker period of the year lasts for 3.4 months, from April 29 to August 10, with an average daily incident shortwave energy per square meter below 4.6 kWh. The darkest month of the year in Melville is June, with an average of 3.6 kWh.

For the purposes of this report, the geographical coordinates of Melville are -28.183 deg latitude, 116.733 deg longitude, and 1,243 ft elevation.

The topography within 2 miles of Melville contains only modest variations in elevation, with a maximum elevation change of 253 feet and an average elevation above sea level of 1,209 feet. Within 10 miles contains only modest variations in elevation (545 feet). Within 50 miles contains significant variations in elevation (1,234 feet).

The area within 2 miles of Melville is covered by sparse vegetation (87%) and grassland (11%), within 10 miles by sparse vegetation (71%) and grassland (20%), and within 50 miles by sparse vegetation (77%) and grassland (16%).