Northern Australia's wet season: what travellers need to know

This guide is researched from official sources, including the Bureau of Meteorology and Parks Australia, rather than personal trip reports. Dates and conditions change every year, so treat the timings here as a general pattern and confirm the details with the agencies linked below.

When the wet season runs

Northern Australia has two main seasons rather than four. The wet generally runs from about November to April, and the dry follows from about May to October. The change is gradual: a hot, humid build-up comes first, then the monsoon rains, then storms that fade into the dry. The Bureau of Meteorology sets the official tropical cyclone season as 1 November to 30 April.

Some regions describe more than two seasons. Kakadu's Traditional Owners recognise six, and Parks Australia's Kakadu site explains each of them. Our general weather guide compares the northern wet and dry pattern with the southern four seasons.

What the wet season is like

• Heat and humidity. Temperatures stay high all year in the tropics, but the humidity in the wet makes it feel much heavier, especially during the build-up.
• Storms and heavy rain. Afternoon thunderstorms are common, and prolonged monsoon rain can arrive for days at a time.
• Cyclones. Tropical cyclones can bring destructive winds, heavy rain and storm surge to the coast. Follow Bureau of Meteorology warnings and your accommodation's instructions.
• Flooding. Rivers and creeks rise quickly, and low-lying roads can go under. Emergency services' long-standing advice is simple: if it's flooded, forget it.

How it affects travel by region

Top End and Kakadu

Darwin and the main sealed roads are usually accessible, but flooding can cut roads and trips off at short notice. In Kakadu, many unsealed roads and attractions close during the wet, and some of the best-known gorges and falls can stay hard to reach for months. Waterfalls are at their most dramatic, but swimming areas can be closed because of water flow and crocodiles. Check Parks Australia for current alerts and the NT Road Report for road status. Our 7 days in Kakadu and Litchfield itinerary shows what is normally on offer in the dry season.

The Kimberley and Gibb River Road

The Gibb River Road is mostly unsealed and crosses creeks and rivers that flood in the wet. It is generally closed or impassable for the wet season, and many stations and campgrounds close with it. The reopening date varies from year to year. Check Main Roads Western Australia, the Shire of Derby-West Kimberley and Parks and Wildlife Service WA for current information. Read our Gibb River Road page for route planning, and see 7 days from Broome for a trip that suits a wider range of conditions.

Far North Queensland

Cairns, Port Douglas and the Atherton Tablelands generally stay open year round, but heavy rain can close roads and affect tours, and cyclones can affect the whole coast. Marine stingers are usually present in coastal waters in the warmer months, so swim only at stinger-protected areas and follow local signs, as the beach and wildlife safety guide explains. Check Queensland Traffic for road conditions. See 5 days in Port Douglas and the Daintree and 5 days in Cairns for the region's main trips.

The upsides of the wet season

• Waterfalls and rivers at full flow. Falls that dwindle in the dry can be spectacular, though viewing points may be limited by access.
• Green landscapes. The tropics are lush, and the storms and skies can be dramatic.
• Fewer visitors. Popular places are usually quieter than in the dry season.
• Lower prices. Accommodation and tours are often cheaper, although that varies by place and year.

How to plan safely

• Stay flexible. Book refundable or changeable fares, accommodation and tours, and allow buffer days.
• Check insurance. Look at exclusions for cyclones, floods and named storms, and when cover starts.
• Stick to sealed roads. Unsealed roads can close or become unsafe with little notice. Read our outback driving guide if you are leaving the bitumen at any time of year.
• Check conditions every day. Use the Bureau of Meteorology for warnings and the relevant road and park authority for access.
• Take water safety seriously. Treat stingers and crocodiles as real risks, and swim only where the local signs say it is safe. See Beachsafe.
• Have a cyclone plan. Know where your accommodation's shelter is and follow official warnings and local emergency instructions if one forms.

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