Pekalongan weather in August

In August, Pekalongan sees average daytime highs of 28°C and overnight lows near 22°C, with 76 mm of rain across 11.8 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels muggy.

Daylight stretches from about 11 h 42 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is Pekalongan's 1st-clearest and 6th-windiest month. For the whole year in context, see Pekalongan's year-round climate.

Daytime high
28°
9th warmest
Overnight low
22°
1st coldest
Rainfall
76 mm
11.8 wet days
Daylight
11 h 48 min
5:52 AM – 5:39 PM
Cloud cover
58%
1st clearest
Wind
4 km/h
6th windiest
Solar energy
5.62 kWh/m²
Travel score
6.1
out of 10

Pekalongan is city in Central Java Province, Indonesia.

Density
7,173/km²
people per km²
Founded
1906

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Pekalongan reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, August runs on par with July and on par with September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72722
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

Pekalongan weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 23°41130.412.43.3
Feb27° / 23°38027.612.23.2
Mar28° / 23°41430.2123.2
Apr28° / 23°37728.411.93.2
May28° / 23°20223.311.74.0
Jun28° / 23°14817.211.65.1
Jul27° / 22°10314.411.65.8
Aug28° / 22°7611.811.86.1
Sep28° / 22°12314.8125.4
Oct28° / 23°29322.712.24.1
Nov28° / 23°46528.312.33.3
Dec28° / 23°51729.612.43.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 29% of August, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45743
55644
65644
75644
85743
95743
105644
115644
125644
135644
145644
155545
165446
175347
185446
195347
205347
215248
225149
235248
245248
255149
265149
275149
285149
295149
305149
315149

Chance of precipitation in August

Any precipitation

Pekalongan gets around 76 mm of rain over 11.8 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
334
434
534
634
735
835
936
1037
1138
1238
1339
1439
1540
1640
1740
1841
1941
2040
2140
2240
2340
2441
2541
2641
2742
2842
2943
3044
3144

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the muggy band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
146234
256233
356332
456332
566232
666232
766133
876033
976033
1085834
1185834
1285834
1385834
1485834
1585834
1675934
1775934
1875934
1975934
2075934
2175934
2266034
2366034
2465935
2565836
2655936
2755837
2855738
2955639
3055540
3155441

Wind in August

Winds average 4 km/h in August.

Across August, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 h 42 min at the start of August to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over August. Sunrise moves from 5:56 AM to 5:46 AM, and sunset from 5:38 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.75:565:38
211.75:565:38
311.75:565:38
411.75:565:38
511.75:565:39
611.75:555:39
711.75:555:39
811.75:555:39
911.75:555:39
1011.75:545:39
1111.75:545:39
1211.85:545:39
1311.85:535:39
1411.85:535:39
1511.85:535:39
1611.85:525:39
1711.85:525:39
1811.85:515:38
1911.85:515:38
2011.85:515:38
2111.85:505:38
2211.85:505:38
2311.85:495:38
2411.85:495:38
2511.85:485:38
2611.85:485:38
2711.85:475:38
2811.85:475:38
2911.85:475:37
3011.95:465:37
3111.95:465:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.62 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 5.99 kWh/m² in September across the year — August's 5.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for Pekalongan

In seasonPeak

None of Pekalongan's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Pekalongan sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Pekalongan's rainy season runs October–April, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Pekalongan?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.1
Sightseeing
1st-best month of the year
6.4
Beach & pool
1st-best month of the year

August is a reasonable time to visit Pekalongan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Pekalongan in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Pekalongan sees daytime highs around 28°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Pekalongan in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 30°C and coldest in February near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Pekalongan in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pekalongan peaks around March 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 15 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 14Nov 15UV 6
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov6High
Dec12Extreme

Air quality in Pekalongan in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Pekalongan is worst in May — around 42 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorModerateMay 1641 µg/m³Feb 1231 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb31Moderate
Mar37Poor
Apr38Poor
May42Poor
Jun38Poor
Jul35Moderate
Aug35Moderate
Sep36Poor
Oct37Poor
Nov34Moderate
Dec33Moderate
Location & terrain

Where is Pekalongan?

Pekalongan sits at 6.9°S, 109.7°E, 10 m above sea level, in Indonesia. The nearest listed city is Wiradesa, 6.0 km away.

Topography around Pekalongan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Pekalongan.

Within 3 km, the terrain around Pekalongan has only modest variations in elevation — a maximum elevation change of 15 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 254 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.

The land around Pekalongan is covered by artificial surfaces (60%) within 3 km, water (42%) and trees (24%) within 16 km, and trees (47%) and water (35%) within 80 km.

3 km
15 m
16 km
254 m
80 km
3,396 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Wiradesa 6.0 km · Kedungwuni 10 km · Wonopringgo 12 km · Comal 16 km · Buaran 23 km · Pemalang 32 km · Weleri 44 km · Randudongkal 45 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Pekalongan (-6.8886°, 109.6753°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).