Bali is slowly transitioning out of the rainy season, but the change of seasons can bring surprises in the form of storms and thunderstorms. The Meteorology, Climatology, and Geophysics Agency (BMKG) has issued a warning about the possibility of high waves in the waters around Bali from March 18 to March 21, 2025.
The worsening weather conditions are caused by Tropical Cyclone 91S, which is approaching from Java. Preliminary estimates suggest that wave heights in the waters south of Bali may reach 1 to 3 meters. In the Bali Strait and Lombok Strait, waves are also expected to be high. Meanwhile, in the waters north of Bali, waves will range between 0.5 to 1.5 meters.
Tourists are advised to postpone water activities such as surfing and diving in areas with strong winds and waves. Extra caution is also recommended when visiting beaches.
High-Risk Areas
Coastal regions of the island, including Uluwatu, Nusa Dua, Sanur, Jimbaran, Kuta, Legian, Seminyak, and Canggu, are in the risk zone. Travelers planning trips to Nusa Penida, the Gili Islands, or Lombok should be aware that even waves of 0.5–1.5 meters can make sea journeys hazardous.
Moist air masses over the ocean surface are also influencing atmospheric conditions. Heavy rain and strong winds blowing from the southwest to northwest at speeds of 6 to 43 km/h are likely in many areas of Bali.
Rainy and Dry Season Patterns in Bali
Bali’s rainy season usually lasts from November to mid-March, with occasional heavy rains still possible in April. According to forecasts, the dry season will begin:
• Mid to late March – in the Nusa Penida area.
• Mid-May – in central Bali.
Currently, rainfall across the province is gradually decreasing. This year’s dry season is expected to have moderate temperatures, and no severe droughts are predicted.
Extreme Weather Conditions During the Seasonal Transition
During the shift between seasons, extreme weather events may occur, including:
• Heavy rain that can start suddenly, accompanied by strong winds and lightning.
• Storms that pose dangers in open areas such as rice fields and coastal zones.
During thunderstorms, it is crucial to avoid open spaces and stay away from tall trees, which may be struck by lightning or uprooted by strong winds.
Tourists can stay updated on the latest weather forecasts via smartphone weather apps or by following the official Instagram page of Bali’s Meteorology, Climatology, and Geophysics Agency (BMKG) (@BMKGBali). The agency regularly posts local weather alerts and forecasts for popular tourist destinations in Bali.
Sources: nusabali
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