Under Different Skies: Coffee Farming in September

September is a turning point for coffee farmers, though its meaning depends on where they live. In Indonesia, the month signals the heart of the harvest season. On islands like Sumatra, Java, and Sulawesi, families rise early to handpick ripe cherries on steep, muddy slopes. Most farms are small, usually less than two hectares, and have been passed down through generations. The work is slow and demanding, but it carries deep heritage and family pride.

Weather is the greatest challenge in these regions. September brings humid air and sudden downpours, which can ruin drying beans if they aren’t covered quickly. Farmers spread their harvest across tarps near homes or roadsides, ready to pull them in at the first sign of rain. These unpredictable conditions gave rise to Indonesia’s unique wet-hulled process, which produces the earthy, full-bodied flavor the country’s coffee is known for.

A farmer’s day often stretches from dawn to dusk walking hillsides, handpicking cherries, sorting through the fruit, and drying beans with constant watchfulness. Families balance this work with tending other crops that help supplement income. For many, coffee is more than an economic lifeline; it is a family story told across generations. Children often join the process, learning techniques their grandparents perfected decades earlier.

In South America, September looks very different. Brazil’s main harvest is usually finished by August, so farmers turn to fieldwork such as pruning trees, fertilizing soil, and preparing for the next season. In Colombia, with its varied microclimates, certain regions still pick in September, but many spend this time focused on caring for younger trees and planning for the next wave of cherries. The weather also contrasts sharply with Indonesia’s; September often brings drier skies in South America, giving farmers steadier conditions and fewer risks during drying and storage.

These climate differences shape not only daily routines but also the character of the coffee itself. Indonesian humidity pushes farmers toward wet-hulled processing, yielding coffees with earthy, bold notes. South America’s sun-drying and longer harvest windows create brighter, fruitier flavors. Climate, tradition, and necessity come together to form a flavor map that is as diverse as the farmers themselves.

What unites both regions is the resilience and creativity of farmers who adapt to their environment. Whether it is rushing to cover beans in a sudden Indonesian rainstorm or preparing fields in the dry hills of Colombia, farmers carry forward a tradition of care and endurance. Each cup of coffee reflects not just terroir but the hands and choices of those who nurture it under very different skies.