Weather in Makassar

Makassar is in Indonesia at 5.1°S. The 2001–2020 NASA POWER daily record describes a monsoon climate with a sharp wet-dry split. October is the warmest month (average 28.9°C, high 31.9°C) and January is the coolest (average 26.9°C, low 25.8°C).

Rain is the monsoon runs from November to April, inside an annual total of 1767 mm. The wettest month is December at 370 mm; the driest is August at 12 mm. On this site the months that score closest to a 22°C day, lighter rain, and moderate humidity are July, August, and September.

When the score favours a visit

The three months with the highest comfort score are July, August, and September: July (27.3°C average, 27 mm, 76% humidity); August (27.6°C average, 12 mm, 72% humidity); September (28.2°C average, 26 mm, 69% humidity). They fall in calendar order. The score rewards averages near 22°C, lower rainfall, and humidity near 60%. It is a climate score, not a festival or price calendar.

If you want the monsoon itself — fewer crowds, greener landscape, heavier rain — aim at November–April instead of the score.

Hot and cool months in Makassar

The heat peaks in October, when the typical afternoon is 31.9°C. The opposite pole is January, when mornings average 25.8°C.

Across the year the mean afternoon high is 29.8°C. If you want the smallest day–night shock, look at months where the high and low sit close together; October nights still hold 25.9°C.

When Makassar gets wet

The monsoon in Makassar starts in November and ends in April (November, December, January, February, March, and April). December is the core of it at 370 mm. August is the other extreme, with 12 mm.

Humidity peaks near 86%. That usually lines up with the wetter months rather than the hottest ones.

Distinctive months in Makassar

The year bottoms out in January. Plan for 25.8°C at night and 27.9°C in the afternoon. February stands apart from the months beside it: 28.1°C / 25.8°C and 249 mm. April closes the monsoon: 156 mm over 24 rainy days, then the calendar dries. May: 30.0°C high, 26.0°C low, 83 mm rain, 80% humidity.

August is the driest month, averaging only 12 mm across 2 rainy days. Highs sit near 30.6°C. Peak heat arrives in October: 31.9°C by day, 25.9°C at night, and 69% humidity. November is when the monsoon typically starts in Makassar: highs near 30.8°C, and rainfall jumps to 151 mm (22 rainy days). December is the wettest month — 370 mm and 29 rainy days, with 83% humidity.

Makassar and other cities in Indonesia

Bali is about 607 km away: Makassar is 2.0°C warmer than Bali in its hottest month and 175 mm wetter over the year than Bali. Bali’s wettest month is January (316 mm) versus December here.

Surabaya is about 775 km away: Makassar is 1.3°C cooler than Surabaya in its hottest month and 114 mm drier over the year than Surabaya. Surabaya’s wettest month is January (337 mm) versus December here.

Jepara is about 982 km away: Makassar is about as warm as Jepara at the hot peak and 370 mm drier over the year than Jepara. Jepara’s wettest month is January (382 mm) versus December here.