August Weather at Honiara-Henderson International Airport Solomon Islands

Daily high temperatures are around 86°F, rarely falling below 84°F or exceeding 89°F.

Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 75°F. The lowest daily average low temperature is 72°F on August 18.

For reference, on November 30, the hottest day of the year, temperatures at Honiara-Henderson International Airport typically range from 74°F to 88°F, while on August 17, the coldest day of the year, they range from 72°F to 86°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Quevedo, Ecuador (8,288 miles away); Padang, Indonesia (4,149 miles); and Yogyakarta, Indonesia (3,397 miles) are the far-away foreign places with temperatures most similar to Honiara-Henderson International Airport (view comparison).

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The month of August at Honiara-Henderson International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 73% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 71% on August 21.

The clearest day of the month is August 21, with clear, mostly clear, or partly cloudy conditions 29% of the time.

For reference, on February 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on August 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 29%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Honiara-Henderson International Airport, the chance of a wet day over the course of August is essentially constant, remaining around 24% throughout.

For reference, the year's highest daily chance of a wet day is 47% on February 15, and its lowest chance is 21% on July 22.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during August at Honiara-Henderson International Airport is essentially constant, remaining about 2.7 inches throughout, and rarely exceeding 5.5 inches or falling below 0.4 inches.

Over the course of August at Honiara-Henderson International Airport, the length of the day is essentially constant. The shortest day of the month is August 1, with 11 hours, 42 minutes of daylight and the longest day is August 31, with 11 hours, 55 minutes of daylight.

The latest sunrise of the month at Honiara-Henderson International Airport is 6:34 AM on August 1 and the earliest sunrise is 12 minutes earlier at 6:22 AM on August 31.

The earliest sunset is 6:17 PM on August 1 and the latest sunset is 55 seconds later at 6:18 PM on August 18.

Daylight saving time is not observed at Honiara-Henderson International Airport during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:57 AM and sets 12 hours, 41 minutes later, at 6:38 PM, while on June 20, the shortest day of the year, it rises at 6:34 AM and sets 11 hours, 34 minutes later, at 6:08 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for August 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 chance that a given day will be muggy at Honiara-Henderson International Airport is essentially constant during August, remaining around 100% throughout.

The lowest chance of a muggy day during August is 99% on August 17.

For reference, on January 20, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 31, the least muggy day of the year, there are muggy conditions 99% of the time.

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 at Honiara-Henderson International Airport is essentially constant during August, remaining within 0.1 miles per hour of 13.5 miles per hour throughout.

For reference, on August 23, the windiest day of the year, the daily average wind speed is 13.6 miles per hour, while on December 9, the calmest day of the year, the daily average wind speed is 7.4 miles per hour.

The highest daily average wind speed during August is 13.6 miles per hour on August 24.

The hourly average wind direction at Honiara-Henderson International Airport throughout August is predominantly from the east, with a peak proportion of 78% on August 31.

Honiara-Henderson International Airport 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 surface water temperature at Honiara-Henderson International Airport is essentially constant during August, remaining around 83°F throughout.

The lowest average surface water temperature during August is 83°F on August 26.

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 at Honiara-Henderson International Airport 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.

The average accumulated growing degree days at Honiara-Henderson International Airport are rapidly increasing during August, increasing by 856°F, from 882°F to 1,738°F, over the course of the month.

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 at Honiara-Henderson International Airport is essentially constant during August, remaining within 0.2 kWh of 4.8 kWh throughout.

For the purposes of this report, the geographical coordinates of Honiara-Henderson International Airport are -9.428 deg latitude, 160.055 deg longitude, and 16 ft elevation.

The topography within 2 miles of Honiara-Henderson International Airport contains only modest variations in elevation, with a maximum elevation change of 154 feet and an average elevation above sea level of 23 feet. Within 10 miles contains only modest variations in elevation (3,310 feet). Within 50 miles also contains extreme variations in elevation (7,638 feet).

The area within 2 miles of Honiara-Henderson International Airport is covered by water (38%), trees (28%), and cropland (22%), within 10 miles by water (52%) and trees (29%), and within 50 miles by water (75%) and trees (20%).