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Summer Weather in Tari Papua New Guinea

Daily high temperatures are around 71°F, rarely falling below 68°F or exceeding 73°F. The lowest daily average high temperature is 70°F on February 22.

Daily low temperatures are around 59°F, rarely falling below 56°F or exceeding 61°F. The highest daily average low temperature is 59°F on December 15.

For reference, on October 30, the hottest day of the year, temperatures in Tari typically range from 59°F to 71°F, while on August 6, the coldest day of the year, they range from 57°F to 70°F.

Average High and Low Temperature in the Summer in Tari

Average High and Low Temperature in the Summer in TariDecJanFeb56°F56°F58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°FSpringFallFeb 1370°FFeb 1370°F59°F59°FDec 171°FDec 171°F59°F59°FFeb 2870°FFeb 2870°F58°F58°FJan 171°FJan 171°F59°F59°FFeb 170°FFeb 170°F59°F59°F
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 summer 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 Summer in Tari

Average Hourly Temperature in the Summer in TariDecJanFeb12 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 AMSpringFallcoolcoolcomfortable
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.
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The summer in Tari experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 95% throughout the season. The highest chance of overcast or mostly cloudy conditions is 96% on January 19.

The clearest day of the summer is December 2, with clear, mostly clear, or partly cloudy conditions 6% of the time.

For reference, on January 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 96%, while on August 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 9%.

Cloud Cover Categories in the Summer in Tari

Cloud Cover Categories in the Summer in TariDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallAug 159%Aug 159%Dec 16%Dec 16%Feb 285%Feb 285%Jan 15%Jan 15%Feb 15%Feb 15%overcastpartly cloudy
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 Tari, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 43% and ending it at 52%.

For reference, the year's highest daily chance of a wet day is 57% on February 8, and its lowest chance is 27% on July 30.

Probability of Precipitation in the Summer in Tari

Probability of Precipitation in the Summer in TariDecJanFeb0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%60%60%SpringFallFeb 857%Feb 857%Dec 143%Dec 143%Feb 2852%Feb 2852%Jan 149%Jan 149%rain
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 summer in Tari is increasing, starting the season at 9.2 inches, when it rarely exceeds 15.1 inches or falls below 3.6 inches, and ending the season at 9.7 inches, when it rarely exceeds 15.8 inches or falls below 4.6 inches.

Average Monthly Rainfall in the Summer in Tari

Average Monthly Rainfall in the Summer in TariDecJanFeb0 in0 in5 in5 in10 in10 in15 in15 inSpringFallDec 19.2 inDec 19.2 inFeb 289.7 inFeb 289.7 inJan 19.5 inJan 19.5 inFeb 19.9 inFeb 19.9 in
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 summer in Tari, the length of the day is essentially constant. The shortest day of the summer is February 28, with 12 hours, 13 minutes of daylight and the longest day is December 22, with 12 hours, 28 minutes of daylight.

Hours of Daylight and Twilight in the Summer in Tari

Hours of Daylight and Twilight in the Summer in TariDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallDec 2112 hr, 28 minDec 2112 hr, 28 mindaydaydaydaynightFeb 2812 hr, 13 minFeb 2812 hr, 13 minFeb 112 hr, 22 minFeb 112 hr, 22 min
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 earliest sunrise of the summer in Tari is 6:04 AM on December 1 and the latest sunrise is 30 minutes later at 6:34 AM on February 26.

The earliest sunset is 6:30 PM on December 1 and the latest sunset is 22 minutes later at 6:52 PM on February 1.

Daylight saving time is not observed in Tari during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:12 AM and sets 12 hours, 28 minutes later, at 6:40 PM, while on June 20, the shortest day of the year, it rises at 6:36 AM and sets 11 hours, 47 minutes later, at 6:23 PM.

Sunrise & Sunset with Twilight in the Summer in Tari

Sunrise & Sunset with Twilight in the Summer in TariDecJanFeb2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSpringFall6:04 AM6:04 AMDec 16:30 PMDec 16:30 PM6:30 AM6:30 AMFeb 16:52 PMFeb 16:52 PM6:34 AM6:34 AMFeb 266:48 PMFeb 266:48 PM6:17 AM6:17 AMJan 16:45 PMJan 16:45 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. 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 Summer in Tari

Solar Elevation and Azimuth in the Summer in TariDecJanFeb12 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 AMSpringFall0010202030304050506060708000101020303040405060607070
northeastsouthwest
Solar elevation and azimuth in the the summer 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 summer 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 Summer in Tari

Moon Rise, Set & Phases in the Summer in TariDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallNov 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 AMJan 148:28 AMJan 148:28 AMJan 2910:37 PMJan 2910:37 PMFeb 1211:54 PMFeb 1211:54 PMFeb 2810:45 AMFeb 2810:45 AMMar 144:55 PMMar 144:55 PMMar 298:58 PMMar 298:58 PM5:32 AM5:32 AM5:45 PM5:45 PM5:55 AM5:55 AM5:40 AM5:40 AM6:30 PM6:30 PM6:34 PM6:34 PM6:38 AM6:38 AM7:09 PM7:09 PM6:20 PM6:20 PM6:24 AM6:24 AM6:47 PM6:47 PM6:44 PM6:44 PM6:52 AM6:52 AM6:30 AM6:30 AM7:03 PM7:03 PM6:41 PM6:41 PM7:00 AM7:00 AM
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 Tari is essentially constant during the summer, remaining around 1% throughout.

For reference, on May 6, the muggiest day of the year, there are muggy conditions 2% of the time, while on July 22, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Summer in Tari

Humidity Comfort Levels in the Summer in TariDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallDec 11%Dec 11%Feb 280%Feb 280%Jan 11%Jan 11%Feb 10%Feb 10%humidhumidcomfortablecomfortabledrydry
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 Tari is gradually increasing during the summer, increasing from 2.5 miles per hour to 3.0 miles per hour over the course of the season.

For reference, on February 26, the windiest day of the year, the daily average wind speed is 3.0 miles per hour, while on June 7, the calmest day of the year, the daily average wind speed is 2.0 miles per hour.

The highest daily average wind speed during the summer is 3.0 miles per hour on February 27.

Average Wind Speed in the Summer in Tari

Average Wind Speed in the Summer in TariDecJanFeb0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mphSpringFallFeb 273.0 mphFeb 273.0 mphDec 12.5 mphDec 12.5 mphJan 12.8 mphJan 12.8 mphFeb 12.9 mphFeb 12.9 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Tari during the summer is predominantly out of the south from December 1 to December 6 and the west from December 6 to February 28.

Wind Direction in the Summer in Tari

Wind Direction in the Summer in TariSWDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%SpringFallwestsouthnortheast
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).

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 Tari 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 Summer in Tari

Time Spent in Various Temperature Bands and the Growing Season in the Summer in TariDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jan 15100%Jan 15coolcomfortable
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 Tari are very rapidly increasing during the summer, increasing by 1,222°F, from 2,057°F to 3,280°F, over the course of the season.

Growing Degree Days in the Summer in Tari

Growing Degree Days in the Summer in TariDecJanFeb2,000°F2,000°F2,200°F2,200°F2,400°F2,400°F2,600°F2,600°F2,800°F2,800°F3,000°F3,000°F3,200°F3,200°FSpringFallDec 12,057°FDec 12,057°FFeb 283,280°FFeb 283,280°FJan 12,491°FJan 12,491°F
The average growing degree days accumulated over the course of the summer, 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 Tari is essentially constant during the summer, remaining within 0.1 kWh of 4.7 kWh throughout.

The highest average daily incident shortwave solar energy during the summer is 4.8 kWh on February 25.

Average Daily Incident Shortwave Solar Energy in the Summer in Tari

Average Daily Incident Shortwave Solar Energy in the Summer in TariDecJanFeb0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhSpringFallFeb 254.8 kWhFeb 254.8 kWhDec 14.5 kWhDec 14.5 kWhJan 14.6 kWhJan 14.6 kWhFeb 14.7 kWhFeb 14.7 kWh
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 Tari are -5.902 deg latitude, 142.935 deg longitude, and 5,276 ft elevation.

The topography within 2 miles of Tari contains very significant variations in elevation, with a maximum elevation change of 1,342 feet and an average elevation above sea level of 5,531 feet. Within 10 miles contains very significant variations in elevation (4,265 feet). Within 50 miles also contains extreme variations in elevation (12,175 feet).

The area within 2 miles of Tari is covered by trees (93%), within 10 miles by trees (89%), and within 50 miles by trees (89%).

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

Tari 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 Tari, 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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