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April Weather in Ketapang Indonesia

Daily high temperatures are around 88°F, rarely falling below 85°F or exceeding 91°F.

Daily low temperatures are around 77°F, rarely falling below 76°F or exceeding 79°F.

For reference, on May 17, the hottest day of the year, temperatures in Ketapang typically range from 77°F to 89°F, while on August 8, the coldest day of the year, they range from 76°F to 88°F.

Average High and Low Temperature in April in Ketapang

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 April. 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 April in Ketapang

Average Hourly Temperature in April in KetapangApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMaywarmwarmhot
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.

Barranquilla, Colombia (11,739 miles away); Vigia, Pará, Brazil (10,926 miles); and Fortaleza, Ceará, Brazil (10,241 miles) are the far-away foreign places with temperatures most similar to Ketapang (view comparison).

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The month of April in Ketapang experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 80% throughout the month.

The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 21% of the time.

For reference, on December 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on June 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 37%.

Cloud Cover Categories in April in Ketapang

Cloud Cover Categories in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 119%Apr 119%Apr 3021%Apr 3021%Apr 1120%Apr 1120%Apr 2119%Apr 2119%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 Ketapang, the chance of a wet day over the course of April is essentially constant, remaining around 62% throughout.

For reference, the year's highest daily chance of a wet day is 76% on November 22, and its lowest chance is 24% on August 10.

Probability of Precipitation in April in Ketapang

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 April in Ketapang is increasing, starting the month at 8.6 inches, when it rarely exceeds 13.9 inches or falls below 4.2 inches, and ending the month at 9.5 inches, when it rarely exceeds 14.8 inches or falls below 4.6 inches.

The highest average 31-day accumulation is 9.5 inches on April 25.

Average Monthly Rainfall in April in Ketapang

Average Monthly Rainfall in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 in16 in16 inMarMayApr 249.5 inApr 249.5 inApr 18.6 inApr 18.6 inApr 119.1 inApr 119.1 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 April in Ketapang, the length of the day is essentially constant. The shortest day of the month is April 30, with 12 hours, 3 minutes of daylight and the longest day is April 1, with 12 hours, 5 minutes of daylight.

Hours of Daylight and Twilight in April in Ketapang

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 Ketapang is 5:41 AM on April 1 and the earliest sunrise is 5 minutes earlier at 5:35 AM on April 30.

The latest sunset is 5:46 PM on April 1 and the earliest sunset is 8 minutes earlier at 5:38 PM on April 30.

Daylight saving time is not observed in Ketapang during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:31 AM and sets 12 hours, 14 minutes later, at 5:45 PM, while on June 20, the shortest day of the year, it rises at 5:41 AM and sets 12 hours, 1 minute later, at 5:42 PM.

Sunrise & Sunset with Twilight in April in Ketapang

Sunrise & Sunset with Twilight in April in KetapangApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMMarMay5:35 AM5:35 AMApr 305:38 PMApr 305:38 PM5:41 AM5:41 AMApr 15:46 PMApr 15:46 PM5:38 AM5:38 AMApr 115:43 PMApr 115:43 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of April. 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 April in Ketapang

Solar Elevation and Azimuth in April in KetapangApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay00101020202030304040505050606070708000010102020303030404050506060607080
northeastsouthwest
Solar elevation and azimuth over the course of April 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 April 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 April in Ketapang

Moon Rise, Set & Phases in April in KetapangApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayMar 104:01 PMMar 104:01 PMMar 252:01 PMMar 252:01 PMApr 91:22 AMApr 91:22 AMApr 246:50 AMApr 246:50 AMMay 810:23 AMMay 810:23 AMMay 238:54 PMMay 238:54 PM5:30 AM5:30 AM5:58 PM5:58 PM5:53 PM5:53 PM6:13 AM6:13 AM5:51 AM5:51 AM6:15 PM6:15 PM5:10 PM5:10 PM5:35 AM5:35 AM5:24 AM5:24 AM5:47 PM5:47 PM5:23 PM5:23 PM5:56 AM5:56 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.
Apr 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
63%-11:03 AMWSW11:24 PMESE4:45 AMS239,498 mi
2
50%-12:02 PMWSW-5:44 AMS236,230 mi
3
41%12:24 AMESE1:01 PMWSW-6:43 AMS232,839 mi
4
29%1:22 AMESE1:57 PMWSW-7:41 AMS229,551 mi
5
19%2:19 AMESE2:51 PMWSW-8:37 AMS226,649 mi
6
10%3:14 AMESE3:43 PMW-9:30 AMS224,436 mi
7
4%4:07 AME4:33 PMW-10:21 AMS223,185 mi
8
1%4:59 AME5:23 PMW-11:11 AMN223,086 mi
9
0%5:51 AME6:15 PMWNW-12:02 PMN224,201 mi
10
3%6:45 AMENE7:08 PMWNW-12:55 PMN226,448 mi
11
9%7:41 AMENE8:03 PMWNW-1:51 PMN229,609 mi
12
17%8:39 AMENE9:01 PMWNW-2:49 PMN233,367 mi
13
26%9:39 AMENE10:00 PMWNW-3:49 PMN237,366 mi
14
36%10:37 AMENE10:57 PMWNW-4:47 PMN241,260 mi
15
47%11:32 AMENE11:51 PMWNW-5:42 PMN244,762 mi
16
50%12:24 PMENE--6:34 PMN247,666 mi
17
66%-12:41 AMWNW1:11 PMENE7:21 PMN249,852 mi
18
75%-1:28 AMWNW1:54 PMENE8:04 PMN251,277 mi
19
83%-2:11 AMWNW2:35 PMENE8:44 PMN251,960 mi
20
90%-2:52 AMW3:14 PME9:23 PMN251,967 mi
21
95%-3:32 AMW3:52 PME10:02 PMN251,390 mi
22
98%-4:12 AMW4:31 PME10:41 PMS250,336 mi
23
100%-4:53 AMW5:10 PMESE11:22 PMS248,906 mi
24
100%-5:35 AMWSW5:53 PMESE--
25
99%-6:20 AMWSW6:39 PMESE12:05 AMS247,187 mi
26
97%-7:09 AMWSW7:28 PMESE12:53 AMS245,245 mi
27
92%-8:02 AMWSW8:22 PMESE1:44 AMS243,123 mi
28
86%-8:59 AMWSW9:19 PMESE2:40 AMS240,849 mi
29
77%-9:56 AMWSW10:18 PMESE3:38 AMS238,447 mi
30
67%-10:54 AMWSW11:16 PMESE4:37 AMS235,954 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 Ketapang is essentially constant during April, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 3, the least muggy day of the year, there are muggy conditions 100% of the time.

Humidity Comfort Levels in April in Ketapang

Humidity Comfort Levels in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%MarMayApr 16100%Apr 16100%Apr 1100%Apr 1100%Apr 30100%Apr 30100%miserablemiserableoppressiveoppressive
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 Ketapang is essentially constant during April, remaining within 0.1 miles per hour of 3.7 miles per hour throughout.

For reference, on August 10, the windiest day of the year, the daily average wind speed is 6.1 miles per hour, while on April 25, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.

The lowest daily average wind speed during April is 3.7 miles per hour on April 25.

Average Wind Speed in April in Ketapang

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Ketapang during April is predominantly out of the west from April 1 to April 21 and the south from April 21 to April 30.

Wind Direction in April in Ketapang

Wind Direction in April in KetapangWSApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%MarMaywestsoutheastnorth
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).

Ketapang 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 Ketapang is essentially constant during April, remaining within 1°F of 86°F throughout.

Average Water Temperature in April in Ketapang

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 Ketapang 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 April in Ketapang

Time Spent in Various Temperature Bands and the Growing Season in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMay100%Apr 16100%Apr 16warmhot
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 Ketapang are very rapidly increasing during April, increasing by 914°F, from 8,453°F to 9,367°F, over the course of the month.

Growing Degree Days in April in Ketapang

Growing Degree Days in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930308,400°F8,400°F8,600°F8,600°F8,800°F8,800°F9,000°F9,000°F9,200°F9,200°F9,400°F9,400°FMarMayApr 18,453°FApr 18,453°FApr 309,367°FApr 309,367°FApr 118,770°FApr 118,770°F
The average growing degree days accumulated over the course of April, 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 Ketapang is essentially constant during April, remaining within 0.2 kWh of 4.4 kWh throughout.

The lowest average daily incident shortwave solar energy during April is 4.2 kWh on April 29.

Average Daily Incident Shortwave Solar Energy in April in Ketapang

Average Daily Incident Shortwave Solar Energy in April in KetapangApr1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhMarMayApr 294.2 kWhApr 294.2 kWhApr 14.6 kWhApr 14.6 kWhApr 114.4 kWhApr 114.4 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 Ketapang are -1.839 deg latitude, 109.977 deg longitude, and 13 ft elevation.

The topography within 2 miles of Ketapang is essentially flat, with a maximum elevation change of 62 feet and an average elevation above sea level of 17 feet. Within 10 miles is essentially flat (121 feet). Within 50 miles contains only modest variations in elevation (3,757 feet).

The area within 2 miles of Ketapang is covered by cropland (43%), trees (26%), grassland (13%), and shrubs (12%), within 10 miles by water (60%) and trees (23%), and within 50 miles by water (63%) and trees (24%).

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

Temperature and Dew Point

There is only a single weather station, Ketapang / Rahadi Usmaman, in our network suitable to be used as a proxy for the historical temperature and dew point records of Ketapang.

At a distance of 3 kilometers from Ketapang, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Ketapang according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

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.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . 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.

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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