Pekalongan climate
Pekalongan (Indonesia) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 27 °C81 °F, and about 2,170 mm85 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Pekalongan climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2985 | 2476 | 2780 | 33113 |
| Feb | 2984 | 2476 | 2780 | 33713 |
| Mar | 3085 | 2476 | 2781 | 2519.9 |
| Apr | 3086 | 2577 | 2882 | 1957.7 |
| May | 3187 | 2576 | 2882 | 1556.1 |
| Jun | 3086 | 2474 | 2780 | 1014.0 |
| Jul | 3086 | 2272 | 2679 | 662.6 |
| Aug | 3187 | 2271 | 2679 | 291.2 |
| Sep | 3290 | 2272 | 2781 | 652.6 |
| Oct | 3290 | 2475 | 2883 | 1214.8 |
| Nov | 3188 | 2576 | 2882 | 2168.5 |
| Dec | 3086 | 2476 | 2781 | 30212 |
| Year | 3290 | 2271 | 2781 | 2,17085 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 88% | 91% | 4.6 | 12:29 |
| Feb | 89% | 91% | 4.6 | 12:20 |
| Mar | 88% | 86% | 5.2 | 12:09 |
| Apr | 86% | 82% | 5.1 | 11:58 |
| May | 84% | 69% | 4.9 | 11:48 |
| Jun | 84% | 61% | 4.8 | 11:43 |
| Jul | 83% | 54% | 5.1 | 11:45 |
| Aug | 80% | 47% | 5.7 | 11:53 |
| Sep | 77% | 48% | 6.1 | 12:05 |
| Oct | 77% | 67% | 5.9 | 12:16 |
| Nov | 82% | 85% | 5.3 | 12:26 |
| Dec | 86% | 93% | 4.6 | 12:31 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Pekalongan is like
The warmest month is October, with an average high of 32 °C90 °F and a low of 24 °C75 °F. The coldest is August, when highs average 31 °C87 °F and lows 22 °C71 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2 °C3.5 °F.
It is very wet, receiving about 2,170 mm85 in of precipitation per year. The wettest three-month stretch is December–February, which brings 45% of the annual total. The wettest month is February (337 mm13 in), the driest is August (29 mm1.2 in).
Relative humidity ranges from 77% in October to 89% in February. The clearest skies (lowest average cloud amount, 47%) are typical of August. Average wind speed near the ground ranges from 5 km/h (3 mph) in April to 7 km/h (4 mph) in January.
Best time to visit Pekalongan
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July–September: average highs of 30 °C86 °F to 32 °C90 °F with 29 mm1.2 in to 66 mm2.6 in of precipitation per month.
The most challenging month is February, which is very wet (337 mm13 in) and humid (89% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Pekalongan
- Wetter months (November–April) — highs 2984 to 31 °C88 °F, lows 2476 to 25 °C77 °F, about 272 mm11 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (May–October) — highs 3086 to 32 °C90 °F, lows 2271 to 25 °C76 °F, about 90 mm3.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Pekalongan compares
Compared with Semarang, about 83 km to the east, Pekalongan is on average 0.5 °C1 °F cooler and receives 5% more precipitation (2,170 mm85 in vs 2,057 mm81 in). The difference is largest in September (2 °C3.6 °F cooler).
Of the 110 places in Indonesia covered by World Climates, Pekalongan is the 51st warmest by annual mean temperature and the 69th wettest by annual precipitation. See all of them on the Indonesia climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Pago Pago (American Samoa, Am), Apia (Samoa, Am) and Apartadó (Colombia, Am).
The same NASA POWER grid cell also contains Tegal (pop. 297,173), Pemalang (pop. 184,149), Adiwerna (pop. 134,188) and Kedungwuni (pop. 117,249). Their long-term averages in this dataset are essentially the same as for Pekalongan, so they do not have separate pages.
Nearby places
- Purwokerto 77 km · 26 °C79 °F · 2,608 mm103 in
- Semarang 83 km · 28 °C82 °F · 2,057 mm81 in
- Ungaran 85 km · 25 °C78 °F · 2,057 mm81 in
- Magelang 88 km · 25 °C76 °F · 2,330 mm92 in
- Jepara 115 km · 28 °C82 °F · 2,137 mm84 in
- Astanajapura 116 km · 27 °C80 °F · 2,311 mm91 in
- Cilacap 119 km · 26 °C79 °F · 2,672 mm105 in
- Cirebon 125 km · 28 °C82 °F · 2,361 mm93 in
Frequently asked questions
What is the warmest month in Pekalongan?
October is the warmest month in Pekalongan, with an average high of 32 °C (90 °F) and an average low of 24 °C (75 °F).
What is the coldest month in Pekalongan?
August is the coldest month, with an average high of 31 °C (87 °F) and an average low of 22 °C (71 °F).
When does it rain the most in Pekalongan?
February is the wettest month with about 337 mm (13.3 in) of precipitation; August is the driest with about 29 mm (1.2 in).
What is the best time to visit Pekalongan?
Judging by long-term averages, the most comfortable months are July–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 236 m, while Pekalongan lies at about 10 m. Temperatures on this page were therefore adjusted by +1.5 °C2.6 °F using the standard lapse rate of 6.5 °C per 1,000 m.