Weather in Bali during December

December in Bali sits right at the start of the monsoon season, and mornings arrive thick with humidity and occasional showers that clear by mid-afternoon. Highs average 19.8°C (67.6°F) while nights cool to 14.5°C (58.1°F)—warm enough for the ocean but cool enough that you'll want a light layer after sunset. Rainfall totals 338.3mm across roughly 30 days, which sounds dramatic until you realize most rain falls in short, intense bursts rather than all-day downpours. You'll still get 8.9 hours of sunshine daily, enough for beach time if you pick your windows carefully.

The island shifts gears in December. Balinese prepare for the new year with temple ceremonies and family gatherings; streets quieter than November but busier than January. Rice fields turn emerald green from all that rain, and local warungs fill with families rather than tourists. Prices edge down from the November peak but haven't hit January's bargain basement yet. If you're here during this month, you're swimming against the seasonal tide—which means fewer crowds, better deals on accommodation, and restaurants that actually need your business.

December's conditions align closely with the ten-year average, though climate data suggests slightly longer dry spells between rain events than historical norms. 2026 should follow the typical pattern: warm, humid, wet but manageable. No extreme departures expected.

December suits travelers comfortable with rain: photographers drawn to moody skies and lush landscapes, budget hunters willing to trade perfect weather for lower prices, and families who don't mind indoor rainy-day plans. Book accommodation with good wifi and covered work areas. Pack quick-dry clothes, a compact rain jacket, and plan water activities (diving, surfing) for the drier mornings. Hiking and trekking work fine if you start early and embrace mud. For 2026 visits, consider travel insurance that covers weather disruptions.