Climate Insights for Pekalongan

The climate in Pekalongan is warm and mild. The average annual temperature is 23°C and approximately 225mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Pekalongan sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperatures in Pekalongan vary considerably across the year, with a 24°C difference between the coldest and warmest months. July is the hottest month, with daytime highs reaching 38°C and an average of 30°C. June is the coolest month, with minimum temperatures around 14°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between April and May, with a 6°C shift in average temperatures.

Pekalongan is a quite dry location, receiving approximately 225mm of precipitation annually, which averages out to around 19mm per month. The wettest month is April, averaging 33mm of rainfall. September and October also tend to see above-average precipitation. The driest month is May, with just 0mm. That's 33mm less than April, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Pekalongan is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 9km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 3km/h in winter, 4km/h in spring, 8km/h in summer, 5km/h in autumn.

It is currently winter in Pekalongan, which began on June 21, 2026. Pekalongan sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in July at around 38°C, while the coldest stretch bottoms out in June near 14°C. Spring is next, beginning on September 23, 2026 — 23 days from now.

The best time to visit Pekalongan is during January, February, March, April, May, June and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 16mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 38°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Pekalongan based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.