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September Weather in Kerema Papua New Guinea

Daily high temperatures are around 85°F, rarely falling below 81°F or exceeding 90°F.

Daily low temperatures are around 76°F, rarely falling below 73°F or exceeding 78°F.

For reference, on November 18, the hottest day of the year, temperatures in Kerema typically range from 78°F to 87°F, while on August 5, the coldest day of the year, they range from 74°F to 83°F.

Average High and Low Temperature in September in Kerema

Average High and Low Temperature in September in KeremaSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303072°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°FAugOctSep 185°FSep 185°F75°F75°FSep 3086°FSep 3086°F76°F76°FSep 1185°FSep 1185°F75°F75°FSep 2186°FSep 2186°F76°F76°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 temperatures for the quarter of the year centered on September. 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 September in Kerema

Average Hourly Temperature in September in KeremaSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctcomfortablewarmhot
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.

Bathsheba, Barbados (10,693 miles away) and Fortaleza, Brazil (11,589 miles) are the far-away foreign places with temperatures most similar to Kerema (view comparison).

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The month of September in Kerema experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 73% to 78%.

The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 27% of the time.

For reference, on January 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 92%, while on August 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 29%.

Cloud Cover Categories in September in Kerema

Cloud Cover Categories in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 127%Sep 127%Sep 3022%Sep 3022%Sep 1124%Sep 1124%Sep 2123%Sep 2123%mostly clearpartly cloudymostly cloudyovercastclear
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 Kerema, the chance of a wet day over the course of September is essentially constant, remaining around 19% throughout.

For reference, the year's highest daily chance of a wet day is 48% on February 29, and its lowest chance is 18% on July 14.

Probability of Precipitation in September in Kerema

Probability of Precipitation in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%22%22%24%24%AugOctSep 120%Sep 120%Sep 3019%Sep 3019%Sep 1120%Sep 1120%Sep 2120%Sep 2120%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 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 September in Kerema is essentially constant, remaining about 2.4 inches throughout, and rarely exceeding 7.5 inches or falling below -0.0 inches.

The lowest average 31-day accumulation is 2.4 inches on September 17.

Average Monthly Rainfall in September in Kerema

Average Monthly Rainfall in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 inAugOctSep 172.4 inSep 172.4 inSep 12.5 inSep 12.5 inSep 302.5 inSep 302.5 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 September in Kerema, the length of the day is essentially constant. The shortest day of the month is September 1, with 11 hours, 57 minutes of daylight and the longest day is September 30, with 12 hours, 10 minutes of daylight.

Hours of Daylight and Twilight in September in Kerema

Hours of Daylight and Twilight in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 6 minSep 2212 hr, 6 mindaydaydaydaynightSep 111 hr, 57 minSep 111 hr, 57 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 latest sunrise of the month in Kerema is 6:18 AM on September 1 and the earliest sunrise is 16 minutes earlier at 6:01 AM on September 30.

The latest sunset is 6:15 PM on September 1 and the earliest sunset is 4 minutes earlier at 6:11 PM on September 30.

Daylight saving time is not observed in Kerema during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:57 AM and sets 12 hours, 35 minutes later, at 6:32 PM, while on June 20, the shortest day of the year, it rises at 6:28 AM and sets 11 hours, 40 minutes later, at 6:08 PM.

Sunrise & Sunset with Twilight in September in Kerema

Sunrise & Sunset with Twilight in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct6:01 AM6:01 AMSep 306:11 PMSep 306:11 PM6:18 AM6:18 AMSep 16:15 PMSep 16:15 PM6:12 AM6:12 AMSep 116:14 PMSep 116:14 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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 September in Kerema

Solar Elevation and Azimuth in September in KeremaSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct00101020202030304040505050606070800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 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 September in Kerema

Moon Rise, Set & Phases in September in KeremaSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 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 PM6:12 AM6:12 AM6:09 PM6:09 PM5:51 PM5:51 PM6:38 AM6:38 AM6:16 AM6:16 AM6:25 PM6:25 PM6:24 PM6:24 PM6:48 AM6:48 AM6:04 AM6:04 AM6:31 PM6:31 PM5:57 PM5:57 PM6:10 AM6:10 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.
Sep 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
4%4:55 AMENE4:54 PMWNW-10:56 AMN248,104 mi
2
1%5:37 AMENE5:41 PMWNW-11:40 AMN249,718 mi
3
0%6:16 AME6:25 PMW-12:21 PMN250,988 mi
4
1%6:53 AME7:08 PMW-1:00 PMN251,884 mi
5
4%7:28 AME7:50 PMW-1:39 PMN252,353 mi
6
8%8:04 AME8:32 PMW-2:17 PMN252,326 mi
7
15%8:40 AMESE9:16 PMWSW-2:57 PMS251,729 mi
8
22%9:19 AMESE10:02 PMWSW-3:39 PMS250,491 mi
9
31%10:00 AMESE10:52 PMWSW-4:25 PMS248,566 mi
10
41%10:46 AMESE11:44 PMWSW-5:14 PMS245,950 mi
11
50%11:37 AMESE--6:08 PMS242,700 mi
12
62%-12:40 AMWSW12:32 PMESE7:05 PMS238,951 mi
13
72%-1:38 AMWSW1:31 PMESE8:04 PMS234,927 mi
14
82%-2:35 AMWSW2:31 PMESE9:03 PMS230,928 mi
15
90%-3:31 AMWSW3:32 PMESE9:59 PMS227,310 mi
16
96%-4:23 AMWSW4:30 PMESE10:53 PMS224,431 mi
17
100%-5:13 AMWSW5:28 PME11:45 PMN222,598 mi
18
100%-6:01 AMW6:24 PME--
19
100%-6:48 AMW7:20 PME12:36 AMN222,008 mi
20
97%-7:36 AMW8:16 PMENE1:27 AMN222,711 mi
21
90%-8:25 AMWNW9:15 PMENE2:20 AMN224,601 mi
22
82%-9:18 AMWNW10:16 PMENE3:15 AMN227,441 mi
23
72%-10:13 AMWNW11:17 PMENE4:14 AMN230,912 mi
24
61%-11:11 AMWNW-5:14 AMN234,673 mi
25
50%12:17 AMENE12:10 PMWNW-6:13 AMN238,413 mi
26
39%1:14 AMENE1:07 PMWNW-7:11 AMN241,888 mi
27
29%2:06 AMENE2:01 PMWNW-8:05 AMN244,938 mi
28
20%2:54 AMENE2:52 PMWNW-8:54 AMN247,476 mi
29
13%3:37 AMENE3:39 PMWNW-9:39 AMN249,479 mi
30
7%4:16 AMENE4:24 PMW-10:21 AMN250,960 mi

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 Kerema is essentially constant during September, remaining within 1% of 98% throughout.

For reference, on January 3, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 13, the least muggy day of the year, there are muggy conditions 97% of the time.

Humidity Comfort Levels in September in Kerema

Humidity Comfort Levels in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 198%Sep 198%Sep 3099%Sep 3099%Sep 1198%Sep 1198%Sep 2198%Sep 2198%miserablemiserableoppressiveoppressivemuggymuggyhumidhumid
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 Kerema is essentially constant during September, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.

For reference, on August 1, the windiest day of the year, the daily average wind speed is 5.6 miles per hour, while on March 14, the calmest day of the year, the daily average wind speed is 3.5 miles per hour.

Average Wind Speed in September in Kerema

Average Wind Speed in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mphAugOctSep 15.2 mphSep 15.2 mphSep 304.9 mphSep 304.9 mphSep 115.2 mphSep 115.2 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Kerema throughout September is predominantly from the south, with a peak proportion of 93% on September 15.

Wind Direction in September in Kerema

Wind Direction in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctsoutheastwest
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).

Kerema 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 Kerema is essentially constant during September, remaining within 1°F of 80°F throughout.

Average Water Temperature in September in Kerema

Average Water Temperature in September in KeremaSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303076°F76°F77°F77°F78°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FAugOctSep 179°FSep 179°FSep 3080°FSep 3080°FSep 1179°FSep 1179°FSep 2180°FSep 2180°F
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 Kerema 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 September in Kerema

Time Spent in Various Temperature Bands and the Growing Season in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct100%Sep 16100%Sep 16comfortablewarmhot
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 Kerema are rapidly increasing during September, increasing by 846°F, from 1,746°F to 2,592°F, over the course of the month.

Growing Degree Days in September in Kerema

The average growing degree days accumulated over the course of September, 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 Kerema is essentially constant during September, remaining around 5.6 kWh throughout.

The highest average daily incident shortwave solar energy during September is 5.6 kWh on September 15.

Average Daily Incident Shortwave Solar Energy in September in Kerema

Average Daily Incident Shortwave Solar Energy in September in KeremaSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhAugOctSep 155.6 kWhSep 155.6 kWhSep 15.5 kWhSep 15.5 kWhSep 305.6 kWhSep 305.6 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 Kerema are -7.963 deg latitude, 145.779 deg longitude, and 59 ft elevation.

The topography within 2 miles of Kerema contains only modest variations in elevation, with a maximum elevation change of 390 feet and an average elevation above sea level of 38 feet. Within 10 miles contains only modest variations in elevation (2,014 feet). Within 50 miles contains large variations in elevation (8,898 feet).

The area within 2 miles of Kerema is covered by water (49%) and trees (48%), within 10 miles by trees (52%) and water (42%), and within 50 miles by water (48%) and trees (45%).

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

Kerema 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 Kerema, 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.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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