Pollen Count & Forecast for Bali

Bali has a year-round allergy season; the dry season (April-October) is dominated by Bermuda Grass and Acacia pollen; Bermuda Grass (Cynodon dactylon) prolific in rice terraces near Tegalalang; Earleaf Acacia (Acacia auriculiformis) common in West Bali National Park. Whistling Pine (Casuarina equisetifolia) occurs along Sanur and Nusa Dua beaches. The wet season (November-March) sees high Mango (Mangifera indica) and Cogon Grass (Imperata cylindrica) pollen levels, originating from village groves and the Ayung River.

High humidity and volcanic slopes near Mount Batukaru trap airborne particles; coastal winds carry allergens across the island. The wet season has high Mould (Aspergillus, Penicillium) spore counts; these are common in the Ubud Monkey Forest and damp agricultural zones.