Winter Weather in Ambunti Papua New GuineaDaily high temperatures are around 85°F, rarely falling below 80°F or exceeding 92°F. The lowest daily average high temperature is 83°F on July 6. Daily low temperatures are around 75°F, rarely falling below 73°F or exceeding 77°F. The lowest daily average low temperature is 74°F on July 26. For reference, on September 25, the hottest day of the year, temperatures in Ambunti typically range from 75°F to 87°F, while on July 24, the coldest day of the year, they range from 74°F to 84°F. The figure below shows you a compact characterization of the hourly average winter temperatures. 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. Siusega, Samoa (3,164 miles away) and Quebrada Bonita Adentro, Panama (9,510 miles) are the far-away foreign places with temperatures most similar to Ambunti (view comparison). CloudsThe winter in Ambunti experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 82% throughout the season. The highest chance of overcast or mostly cloudy conditions is 85% on June 22. The lowest chance of overcast or mostly cloudy conditions is 79% on August 24. The clearest day of the winter is August 24, with clear, mostly clear, or partly cloudy conditions 21% of the time. For reference, on December 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 91%, while on August 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 21%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ambunti, the chance of a wet day over the course of the winter is gradually decreasing, starting the season at 35% and ending it at 31%. For reference, the year's highest daily chance of a wet day is 47% on April 6, and its lowest chance is 28% on July 30. RainfallTo show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during the winter in Ambunti is rapidly decreasing, starting the season at 5.4 inches, when it rarely exceeds 8.5 inches or falls below 2.2 inches, and ending the season at 4.1 inches, when it rarely exceeds 7.0 inches or falls below 1.3 inches. The lowest average 31-day accumulation is 3.8 inches on August 12. SunOver the course of the winter in Ambunti, the length of the day is essentially constant. The shortest day of the winter is June 21, with 11 hours, 53 minutes of daylight and the longest day is August 31, with 12 hours, 2 minutes of daylight. The latest sunrise of the winter in Ambunti is 6:37 AM on July 19 and the earliest sunrise is 10 minutes earlier at 6:28 AM on August 31. The earliest sunset is 6:23 PM on June 1 and the latest sunset is 10 minutes later at 6:33 PM on August 2. Daylight saving time is not observed in Ambunti during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 6:15 AM and sets 12 hours, 22 minutes later, at 6:37 PM, while on June 20, the shortest day of the year, it rises at 6:33 AM and sets 11 hours, 53 minutes later, at 6:26 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. MoonThe figure below presents a compact representation of key lunar data for the winter of 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. HumidityWe 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 in Ambunti is essentially constant during the winter, remaining around 100% throughout. For reference, on January 28, the muggiest day of the year, there are muggy conditions 100% of the time, while on September 22, the least muggy day of the year, there are muggy conditions 99% of the time. WindThis 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 Ambunti is essentially constant during the winter, remaining within 0.1 miles per hour of 1.5 miles per hour throughout. For reference, on March 3, the windiest day of the year, the daily average wind speed is 1.8 miles per hour, while on June 23, the calmest day of the year, the daily average wind speed is 1.4 miles per hour. The lowest daily average wind speed during the winter is 1.4 miles per hour on June 23. The wind direction in Ambunti during the winter is predominantly out of the east from June 1 to July 21 and from August 3 to August 31 and the north from July 21 to August 3. Water TemperatureAmbunti 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 in Ambunti is essentially constant during the winter, remaining within 1°F of 84°F throughout. The lowest average surface water temperature during the winter is 83°F on August 8. Growing SeasonDefinitions 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 Ambunti 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 in Ambunti are very rapidly decreasing during the winter, decreasing by 8,106°F, from 9,850°F to 1,743°F, over the course of the season. Solar EnergyThis 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 in Ambunti is gradually increasing during the winter, rising by 0.7 kWh, from 4.3 kWh to 4.9 kWh, over the course of the season. The lowest average daily incident shortwave solar energy during the winter is 4.0 kWh on June 27. TopographyFor the purposes of this report, the geographical coordinates of Ambunti are -4.217 deg latitude, 142.818 deg longitude, and 95 ft elevation. The topography within 2 miles of Ambunti contains very significant variations in elevation, with a maximum elevation change of 1,486 feet and an average elevation above sea level of 334 feet. Within 10 miles also contains very significant variations in elevation (1,752 feet). Within 50 miles contains very significant variations in elevation (6,404 feet). The area within 2 miles of Ambunti is covered by trees (62%) and water (22%), within 10 miles by trees (72%) and water (15%), and within 50 miles by trees (80%). Data SourcesThis report illustrates the typical weather in Ambunti, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Ambunti is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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. The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Ambunti, according to the International Standard Atmosphere . All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. 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