Climate and Average Weather Year Round in Pearce Western Australia, Australia

In Pearce, the summers are hot and dry; the winters are long, wet, and cool; and it is mostly clear and windy year round. Over the course of the year, the temperature typically varies from 47°F to 90°F and is rarely below 39°F or above 101°F.

Based on the tourism score, the best time of year to visit Pearce for warm-weather activities is from late November to early April.

The hot season lasts for 3.0 months, from December 17 to March 18, with an average daily high temperature above 85°F. The hottest month of the year in Pearce is February, with an average high of 89°F and low of 65°F.

The cool season lasts for 4.0 months, from May 26 to September 26, with an average daily high temperature below 68°F. The coldest month of the year in Pearce is July, with an average low of 48°F and high of 63°F.

In Pearce, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Pearce begins around August 18 and lasts for 7.0 months, ending around March 18.

The clearest month of the year in Pearce is January, during which on average the sky is clear, mostly clear, or partly cloudy 86% of the time.

The cloudier part of the year begins around March 18 and lasts for 5.0 months, ending around August 18.

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

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

The wetter season lasts 4.6 months, from May 7 to September 25, with a greater than 22% chance of a given day being a wet day. The month with the most wet days in Pearce is July, with an average of 12.0 days with at least 0.04 inches of precipitation.

The drier season lasts 7.4 months, from September 25 to May 7. The month with the fewest wet days in Pearce is December, 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 Pearce is July, with an average of 12.0 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 40% on July 22.

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. Pearce experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 10 months, from January 14 to November 24, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Pearce is July, with an average rainfall of 3.9 inches.

The rainless period of the year lasts for 1.7 months, from November 24 to January 14. The month with the least rain in Pearce is December, with an average rainfall of 0.3 inches.

The length of the day in Pearce varies significantly over the course of the year. In 2026, the shortest day is June 21, with 10 hours, 5 minutes of daylight; the longest day is December 22, with 14 hours, 13 minutes of daylight.

The earliest sunrise is at 5:03 AM on December 5, and the latest sunrise is 2 hours, 13 minutes later at 7:16 AM on July 1. The earliest sunset is at 5:19 PM on June 11, and the latest sunset is 2 hours, 6 minutes later at 7:25 PM on January 8.

Daylight saving time (DST) is not observed in Pearce during 2026.

The figure below presents a compact representation of key lunar data for 2026. 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 Pearce, 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 2% of 2% 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 Pearce experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.6 months, from November 3 to March 22, with average wind speeds of more than 11.8 miles per hour. The windiest month of the year in Pearce is January, with an average hourly wind speed of 13.2 miles per hour.

The calmer time of year lasts for 7.4 months, from March 22 to November 3. The calmest month of the year in Pearce is May, with an average hourly wind speed of 10.5 miles per hour.

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

The wind is most often from the east for 4.3 months, from February 4 to June 13, with a peak percentage of 46% on March 6. The wind is most often from the west for 3.6 months, from June 13 to October 1, with a peak percentage of 41% on September 7. The wind is most often from the south for 4.1 months, from October 1 to February 4, with a peak percentage of 47% on January 1.

Pearce 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 3.9 months, from January 16 to May 14, with an average temperature above 71°F. The month of the year in Pearce with the warmest water is March, with an average temperature of 72°F.

The time of year with cooler water lasts for 3.2 months, from July 30 to November 7, with an average temperature below 67°F. The month of the year in Pearce with the coolest water is September, with an average temperature of 66°F.

To characterize how pleasant the weather is in Pearce 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 time of year to visit Pearce for general outdoor tourist activities is from late November to early April, with a peak score in the third week of January.

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 Pearce for hot-weather activities is from mid January to early 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 Pearce 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 3.5 months, from November 3 to February 17, with an average daily incident shortwave energy per square meter above 7.6 kWh. The brightest month of the year in Pearce is December, with an average of 8.7 kWh.

The darker period of the year lasts for 3.6 months, from May 2 to August 21, with an average daily incident shortwave energy per square meter below 3.9 kWh. The darkest month of the year in Pearce is June, with an average of 2.8 kWh.

For the purposes of this report, the geographical coordinates of Pearce are -31.667 deg latitude, 116.017 deg longitude, and 125 ft elevation.

The topography within 2 miles of Pearce contains only modest variations in elevation, with a maximum elevation change of 446 feet and an average elevation above sea level of 144 feet. Within 10 miles contains only modest variations in elevation (1,188 feet). Within 50 miles also contains very significant variations in elevation (1,932 feet).

The area within 2 miles of Pearce is covered by cropland (44%), sparse vegetation (34%), and trees (13%), within 10 miles by trees (40%) and sparse vegetation (33%), and within 50 miles by cropland (26%) and trees (24%).