1. WeatherSpark.com
  2. Indonesia
  3. Central Java
  4. Pekalongan

August Weather in Pekalongan Indonesia

Daily high temperatures are around 88°F, rarely falling below 86°F or exceeding 90°F. The lowest daily average high temperature is 88°F on August 6.

Daily low temperatures are around 76°F, rarely falling below 72°F or exceeding 79°F. The lowest daily average low temperature is 76°F on August 10.

For reference, on May 16, the hottest day of the year, temperatures in Pekalongan typically range from 79°F to 89°F, while on August 9, the coldest day of the year, they range from 76°F to 88°F.

Average High and Low Temperature in August in Pekalongan

Average High and Low Temperature in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313172°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°F92°F92°F94°F94°F96°F96°F98°F98°FJulSepAug 488°FAug 488°F76°F76°FAug 3188°FAug 3188°F76°F76°FAug 2188°FAug 2188°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 August. 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 August in Pekalongan

Average Hourly Temperature in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSepwarmwarmhot
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.

São Luís, Brazil (10,539 miles away) is the far-away foreign place with temperatures most similar to Pekalongan (view comparison).

Map
Marker
© OpenStreetMap contributors

Compare Pekalongan to another city:

Map

The month of August in Pekalongan experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 58% to 63%. The lowest chance of overcast or mostly cloudy conditions is 58% on August 5.

The clearest day of the month is August 5, with clear, mostly clear, or partly cloudy conditions 42% of the time.

For reference, on January 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 91%, while on August 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 42%.

Cloud Cover Categories in August in Pekalongan

Cloud Cover Categories in August in PekalonganAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepJan 199%Jan 199%Aug 142%Aug 142%Aug 3137%Aug 3137%Aug 1142%Aug 1142%Aug 2140%Aug 2140%clearmostly clearpartly cloudymostly cloudyovercast
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 Pekalongan, the chance of a wet day over the course of August is essentially constant, remaining around 14% throughout.

For reference, the year's highest daily chance of a wet day is 81% on February 1, and its lowest chance is 12% on August 10.

Probability of Precipitation in August in Pekalongan

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 August in Pekalongan is gradually increasing, starting the month at 1.3 inches, when it rarely exceeds 3.6 inches, and ending the month at 1.6 inches, when it rarely exceeds 5.8 inches or falls below -0.0 inches.

The lowest average 31-day accumulation is 1.2 inches on August 8.

Average Monthly Rainfall in August in Pekalongan

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 August in Pekalongan, the length of the day is essentially constant. The shortest day of the month is August 1, with 11 hours, 49 minutes of daylight and the longest day is August 31, with 11 hours, 58 minutes of daylight.

Hours of Daylight and Twilight in August in Pekalongan

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 Pekalongan is 5:53 AM on August 1 and the earliest sunrise is 11 minutes earlier at 5:42 AM on August 31.

The latest sunset is 5:42 PM on August 8 and the earliest sunset is 1 minute, 42 seconds earlier at 5:40 PM on August 31.

Daylight saving time is not observed in Pekalongan during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:23 AM and sets 12 hours, 32 minutes later, at 5:55 PM, while on June 20, the shortest day of the year, it rises at 5:51 AM and sets 11 hours, 43 minutes later, at 5:34 PM.

Sunrise & Sunset with Twilight in August in Pekalongan

Sunrise & Sunset with Twilight in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMJulSep5:42 AM5:42 AMAug 315:40 PMAug 315:40 PM5:51 AM5:51 AMAug 85:42 PMAug 85:42 PM5:46 AM5:46 AMAug 215:41 PMAug 215:41 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of August. 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 August in Pekalongan

Solar Elevation and Azimuth in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSep0010102020203030404050505060607080000101020203030304040505060606070
northeastsouthwest
Solar elevation and azimuth over the course of August 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 August 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 August in Pekalongan

Moon Rise, Set & Phases in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepJul 65:58 AMJul 65:58 AMJul 215:18 PMJul 215:18 PMAug 46:14 PMAug 46:14 PMAug 201:26 AMAug 201:26 AMSep 38:56 AMSep 38:56 AMSep 189:35 AMSep 189:35 AM6:03 AM6:03 AM6:01 PM6:01 PM5:40 PM5:40 PM6:34 AM6:34 AM5:39 AM5:39 AM5:40 PM5:40 PM5:22 PM5:22 PM6:06 AM6:06 AM5:43 AM5:43 AM5:55 PM5:55 PM4:58 PM4:58 PM5:30 AM5:30 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.
Aug 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
12%2:58 AMENE2:55 PMWNW-8:57 AMN239,541 mi
2
6%3:55 AMENE3:53 PMWNW-9:54 AMN241,784 mi
3
2%4:49 AMENE4:48 PMWNW-10:50 AMN243,973 mi
4
0%5:39 AMENE5:40 PMWNW-11:41 AMN246,060 mi
5
1%6:24 AMENE6:29 PMWNW-12:27 PMN247,974 mi
6
3%7:06 AMENE7:14 PMW-1:10 PMN249,621 mi
7
7%7:44 AME7:57 PMW-1:51 PMN250,890 mi
8
13%8:21 AME8:39 PMW-2:30 PMN251,660 mi
9
21%8:57 AME9:21 PMW-3:08 PMN251,814 mi
10
29%9:33 AME10:03 PMWSW-3:47 PMS251,258 mi
11
38%10:11 AMESE10:48 PMWSW-4:28 PMS249,931 mi
12
50%10:51 AMESE11:36 PMWSW-5:12 PMS247,824 mi
13
58%11:36 AMESE--6:00 PMS244,995 mi
14
68%-12:27 AMWSW12:26 PMESE6:53 PMS241,575 mi
15
78%-1:23 AMWSW1:20 PMESE7:50 PMS237,776 mi
16
87%-2:21 AMWSW2:19 PMESE8:51 PMS233,886 mi
17
94%-3:20 AMWSW3:21 PMESE9:51 PMS230,244 mi
18
98%-4:19 AMWSW4:23 PMESE10:50 PMS227,193 mi
19
100%-5:14 AMWSW5:22 PMESE11:46 PMS225,026 mi
20
100%-6:06 AMWSW6:20 PME--
21
99%-6:55 AMW7:15 PME12:39 AMS223,933 mi
22
94%-7:42 AMW8:09 PME1:29 AMN223,975 mi
23
87%-8:29 AMW9:03 PME2:19 AMN225,078 mi
24
78%-9:16 AMWNW9:58 PMENE3:09 AMN227,058 mi
25
67%-10:06 AMWNW10:55 PMENE4:01 AMN229,668 mi
26
50%-10:58 AMWNW11:54 PMENE4:56 AMN232,643 mi
27
44%-11:54 AMWNW-5:53 AMN235,740 mi
28
33%12:53 AMENE12:51 PMWNW-6:52 AMN238,768 mi
29
23%1:51 AMENE1:48 PMWNW-7:50 AMN241,593 mi
30
15%2:45 AMENE2:43 PMWNW-8:45 AMN244,139 mi
31
8%3:36 AMENE3:36 PMWNW-9:37 AMN246,372 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 Pekalongan is essentially constant during August, remaining around 98% throughout.

The lowest chance of a muggy day during August is 98% on August 28.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on August 26, the least muggy day of the year, there are muggy conditions 98% of the time.

Humidity Comfort Levels in August in Pekalongan

Humidity Comfort Levels in August in PekalonganAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepAug 2898%Aug 2898%Aug 199%Aug 199%Aug 1198%Aug 1198%miserablemiserableoppressiveoppressivemuggymuggy
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 Pekalongan is essentially constant during August, remaining within 0.1 miles per hour of 6.1 miles per hour throughout.

For reference, on January 28, the windiest day of the year, the daily average wind speed is 8.2 miles per hour, while on November 8, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.

The highest daily average wind speed during August is 6.3 miles per hour on August 8.

Average Wind Speed in August in Pekalongan

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 Pekalongan throughout August is predominantly from the south, with a peak proportion of 54% on August 29.

Wind Direction in August in Pekalongan

Wind Direction in August in PekalonganESAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepsoutheastnorth
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).

Pekalongan 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 Pekalongan is essentially constant during August, remaining around 83°F throughout.

The lowest average surface water temperature during August is 83°F on August 16.

Average Water Temperature in August in Pekalongan

Average Water Temperature in August in PekalonganAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313181.5°F81.5°F82.0°F82.0°F82.5°F82.5°F83.0°F83.0°F83.5°F83.5°F84.0°F84.0°F84.5°F84.5°F85.0°F85.0°F85.5°F85.5°F86.0°F86.0°FJulSepAug 1683°FAug 1683°FAug 183°FAug 183°FAug 3183°FAug 3183°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 Pekalongan 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 August in Pekalongan

Time Spent in Various Temperature Bands and the Growing Season in August in PekalonganAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSep100%Aug 16100%Aug 16100%Jul 2100%Jul 2warmhotcomfortable
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 Pekalongan are very rapidly increasing during August, increasing by 932°F, from 974°F to 1,906°F, over the course of the month.

Growing Degree Days in August in Pekalongan

The average growing degree days accumulated over the course of August, 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 Pekalongan is gradually increasing during August, rising by 0.5 kWh, from 5.9 kWh to 6.5 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in August in Pekalongan

Average Daily Incident Shortwave Solar Energy in August in PekalonganAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhJulSepAug 15.9 kWhAug 15.9 kWhAug 316.5 kWhAug 316.5 kWhAug 116.2 kWhAug 116.2 kWhAug 216.3 kWhAug 216.3 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 Pekalongan are -6.889 deg latitude, 109.675 deg longitude, and 33 ft elevation.

The topography within 2 miles of Pekalongan is essentially flat, with a maximum elevation change of 56 feet and an average elevation above sea level of 21 feet. Within 10 miles is essentially flat (784 feet). Within 50 miles contains significant variations in elevation (11,240 feet).

The area within 2 miles of Pekalongan is covered by artificial surfaces (81%) and cropland (13%), within 10 miles by water (46%) and cropland (24%), and within 50 miles by water (54%) and trees (23%).

This report illustrates the typical weather in Pekalongan, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Pekalongan.

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

The estimated value at Pekalongan is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pekalongan and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Pekalongan and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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.

Please review our full terms contained on our Terms of Service page.