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Spring Weather in Aitape Papua New Guinea

Daily high temperatures are around 84°F, rarely falling below 81°F or exceeding 87°F. The highest daily average high temperature is 84°F on October 22.

Daily low temperatures are around 78°F, rarely falling below 77°F or exceeding 80°F. The highest daily average low temperature is 79°F on November 26.

For reference, on October 20, the hottest day of the year, temperatures in Aitape typically range from 78°F to 84°F, while on July 31, the coldest day of the year, they range from 78°F to 83°F.

Average High and Low Temperature in the Spring in Aitape

Average High and Low Temperature in the Spring in AitapeSepOctNov76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°FWinterSummerOct 2084°FOct 2084°F78°F78°FSep 184°FSep 184°F78°F78°FNov 3084°FNov 3084°F79°F79°FOct 184°FOct 184°F78°F78°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average spring 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.

Average Hourly Temperature in the Spring in Aitape

Average Hourly Temperature in the Spring in AitapeSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummerNowNowwarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Banana Village, Kiribati (4,182 miles away); Fernando de Noronha (Distrito Estadual), Pernambuco, Brazil (11,847 miles); and Camayenne, Guinea (10,747 miles) are the far-away foreign places with temperatures most similar to Aitape (view comparison).

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The spring in Aitape experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 78% to 89%.

The clearest day of the spring is September 1, with clear, mostly clear, or partly cloudy conditions 22% of the time.

For reference, on December 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 90%, while on August 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 22%.

Cloud Cover Categories in the Spring in Aitape

Cloud Cover Categories in the Spring in AitapeSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerSep 122%Sep 122%Nov 3011%Nov 3011%Oct 116%Oct 116%Nov 114%Nov 114%NowNowpartly cloudymostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Aitape, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 40% and ending it at 49%.

For reference, the year's highest daily chance of a wet day is 54% on February 9, and its lowest chance is 38% on September 17.

Probability of Precipitation in the Spring in Aitape

Probability of Precipitation in the Spring in AitapeSepOctNov0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%WinterSummerSep 1738%Sep 1738%Sep 140%Sep 140%Nov 3049%Nov 3049%Oct 139%Oct 139%Nov 145%Nov 145%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To 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 spring in Aitape is rapidly increasing, starting the season at 4.4 inches, when it rarely exceeds 8.5 inches or falls below 1.2 inches, and ending the season at 5.7 inches, when it rarely exceeds 9.0 inches or falls below 2.7 inches.

The lowest average 31-day accumulation is 4.2 inches on September 22.

Average Monthly Rainfall in the Spring in Aitape

Average Monthly Rainfall in the Spring in AitapeSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inWinterSummerSep 214.2 inSep 214.2 inSep 14.4 inSep 14.4 inNov 305.7 inNov 305.7 inNov 15.2 inNov 15.2 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of the spring in Aitape, the length of the day is essentially constant. The shortest day of the spring is September 1, with 12 hours, 3 minutes of daylight and the longest day is November 30, with 12 hours, 17 minutes of daylight.

Hours of Daylight and Twilight in the Spring in Aitape

Hours of Daylight and Twilight in the Spring in AitapeSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerSep 2212 hr, 6 minSep 2212 hr, 6 mindaydaydaydaynightSep 112 hr, 3 minSep 112 hr, 3 minNov 3012 hr, 17 minNov 3012 hr, 17 minNov 112 hr, 13 minNov 112 hr, 13 minNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the spring in Aitape is 6:29 AM on September 1 and the earliest sunrise is 22 minutes earlier at 6:07 AM on November 9.

The latest sunset is 6:32 PM on September 1 and the earliest sunset is 11 minutes earlier at 6:20 PM on October 26.

Daylight saving time is not observed in Aitape during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:19 AM and sets 12 hours, 18 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, 56 minutes later, at 6:30 PM.

Sunrise & Sunset with Twilight in the Spring in Aitape

Sunrise & Sunset with Twilight in the Spring in AitapeSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer6:07 AM6:07 AMNov 96:21 PMNov 96:21 PM6:29 AM6:29 AMSep 16:32 PMSep 16:32 PM6:10 AM6:10 AMNov 306:27 PMNov 306:27 PM6:16 AM6:16 AMOct 16:24 PMOct 16:24 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the spring. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in the Spring in Aitape

Solar Elevation and Azimuth in the Spring in AitapeSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummer001020203030405050606070800010102030304040506060707080NowNow
northeastsouthwest
Solar elevation and azimuth in the the spring of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the spring 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.

Moon Rise, Set & Phases in the Spring in Aitape

Moon Rise, Set & Phases in the Spring in AitapeSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerAug 49:14 PMAug 49:14 PMAug 204:26 AMAug 204:26 AMSep 311:56 AMSep 311:56 AMSep 1812:35 PMSep 1812:35 PMOct 34:50 AMOct 34:50 AMOct 179:27 PMOct 179:27 PMNov 110:48 PMNov 110:48 PMNov 167:29 AMNov 167:29 AMDec 14:22 PMDec 14:22 PMDec 157:02 PMDec 157:02 PMDec 318:27 AMDec 318:27 AM6:31 PM6:31 PM6:11 PM6:11 PM6:47 AM6:47 AM6:26 AM6:26 AM6:42 PM6:42 PM6:38 PM6:38 PM7:03 AM7:03 AM6:42 PM6:42 PM6:08 PM6:08 PM6:29 AM6:29 AM5:37 AM5:37 AM6:05 PM6:05 PM5:43 PM5:43 PM6:02 AM6:02 AM5:48 AM5:48 AM6:27 PM6:27 PM6:30 PM6:30 PM6:47 AM6:47 AM7:06 PM7:06 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 in Aitape is essentially constant during the spring, remaining around 100% throughout.

Humidity Comfort Levels in the Spring in Aitape

Humidity Comfort Levels in the Spring in AitapeSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%WinterSummerOct 16100%Oct 16100%Sep 1100%Sep 1100%Nov 30100%Nov 30100%Oct 1100%Oct 1100%Nov 1100%Nov 1100%NowNowmiserablemiserableoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Aitape is essentially constant during the spring, remaining within 0.3 miles per hour of 4.3 miles per hour throughout.

For reference, on March 2, the windiest day of the year, the daily average wind speed is 5.5 miles per hour, while on October 21, the calmest day of the year, the daily average wind speed is 4.0 miles per hour.

The lowest daily average wind speed during the spring is 4.0 miles per hour on October 22.

Average Wind Speed in the Spring in Aitape

Average Wind Speed in the Spring in AitapeSepOctNov0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mphWinterSummerOct 224.0 mphOct 224.0 mphSep 14.5 mphSep 14.5 mphNov 304.5 mphNov 304.5 mphOct 14.3 mphOct 14.3 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Aitape during the spring is predominantly out of the east from September 1 to November 6 and the north from November 6 to November 30.

Wind Direction in the Spring in Aitape

Wind Direction in the Spring in AitapeENSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%WinterSummerNowNowwesteastnorthsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Aitape 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 Aitape is essentially constant during the spring, remaining within 1°F of 84°F throughout.

The highest average surface water temperature during the spring is 85°F on November 11.

Average Water Temperature in the Spring in Aitape

Average Water Temperature in the Spring in AitapeSepOctNov82°F82°F83°F83°F84°F84°F85°F85°F86°F86°F87°F87°FWinterSummerNov 1185°FNov 1185°FSep 184°FSep 184°FNov 3085°FNov 3085°FOct 184°FOct 184°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Aitape 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.

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Aitape

Time Spent in Various Temperature Bands and the Growing Season in the Spring in AitapeSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummer100%Oct 16100%Oct 16NowNowwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 Aitape are very rapidly increasing during the spring, increasing by 2,765°F, from 1,850°F to 4,615°F, over the course of the season.

Growing Degree Days in the Spring in Aitape

Growing Degree Days in the Spring in AitapeSepOctNov2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FWinterSummerSep 11,850°FSep 11,850°FNov 304,615°FNov 304,615°FOct 12,763°FOct 12,763°FNov 13,719°FNov 13,719°FNowNow
The average growing degree days accumulated over the course of the spring, with 25th to 75th and 10th to 90th percentile bands.

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 in Aitape is essentially constant during the spring, remaining within 0.3 kWh of 4.4 kWh throughout.

The highest average daily incident shortwave solar energy during the spring is 4.7 kWh on September 8.

Average Daily Incident Shortwave Solar Energy in the Spring in Aitape

Average Daily Incident Shortwave Solar Energy in the Spring in AitapeSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhWinterSummerSep 84.7 kWhSep 84.7 kWhNov 304.2 kWhNov 304.2 kWhOct 14.6 kWhOct 14.6 kWhNov 14.5 kWhNov 14.5 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Aitape are -3.153 deg latitude, 142.363 deg longitude, and 39 ft elevation.

The topography within 2 miles of Aitape contains only modest variations in elevation, with a maximum elevation change of 246 feet and an average elevation above sea level of 33 feet. Within 10 miles contains only modest variations in elevation (1,450 feet). Within 50 miles contains very significant variations in elevation (6,385 feet).

The area within 2 miles of Aitape is covered by water (47%), trees (34%), and cropland (13%), within 10 miles by water (54%) and trees (40%), and within 50 miles by water (57%) and trees (39%).

This report illustrates the typical weather in Aitape, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Aitape 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 Aitape, 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.

Disclaimer

The 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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