Quick Answers
When is the best time to visit?
The dry season, roughly June to October, has comfortable temperatures, low humidity and usually excellent visibility. It’s also the busiest time, so book ahead.
What is the wet season like?
November to April is hotter and more humid, with short tropical storms, warmer water and fewer visitors.
When is stinger season?
Around November to May, when a full-body stinger suit is recommended. Check conditions on the day.
“Green Island has weather — all tropical islands do. The difference is that almost every kind of weather here is somehow beautiful.”
When to Visit Green Island: A Seasonal Guide
Green Island is open year-round, and each season has its own character. Understanding the differences helps visitors choose a time that matches what they are looking for — whether that is the most stable diving conditions, the warmest water, the quietest crowds, or simply the most convenient time to travel.
The Dry Season (May to October)
The dry season is widely considered the best time to visit Green Island. Temperatures are comfortable (20 to 28 degrees Celsius), humidity is low, and the south-east trade winds provide a reliable and pleasant breeze without creating difficult sea conditions. Visibility on the reef is typically excellent, often 10 to 20 metres, and the water is calm in the mornings before afternoon winds increase. This is the peak tourist season, and advance booking is strongly recommended, particularly in June, July, and August.
The Wet Season (November to April)
The wet season brings higher temperatures (28 to 35 degrees Celsius), higher humidity, and the possibility of tropical rain showers and storms. Sea conditions can be less consistent, and reef visibility is sometimes reduced after rain events that introduce freshwater and sediment into coastal waters. However, the wet season also brings warmer water (excellent for snorkelling), fewer visitors, lower accommodation prices, and the possibility of encountering species more active in summer, including manta rays in some years. Tropical storms are typically short and dramatic rather than sustained.
Monthly Highlights
June to August offer the most stable and comfortable conditions for most visitors. October and November provide warmth with gradually reducing crowds after the peak winter period. January and February are the heart of the wet season, hot, humid, and prone to afternoon storms, but with extraordinarily warm water and genuine tropical drama. March and April are pleasant shoulder season months with warm water, moderate crowds, and improving conditions as the wet season eases.
What to Expect on the Day
Regardless of season, mornings are almost always better for reef activities than afternoons. Trade winds typically increase through the day, and morning snorkelling conditions are consistently calmer and clearer. If rain comes, it is usually brief, and the reef is beautiful in soft light after a shower. Green Island day tours operate in most weather conditions; operators will advise if conditions are unsuitable for the crossing.
A Hot Getaways destination. Where Care is Our Compass.
Frequently Asked Questions
What is the weather like on Green Island?
Green Island has a tropical climate, warm year-round. The dry season (roughly June to October) brings milder, comfortable conditions and lower humidity, while the wet season (around November to April) is hotter and more humid with the chance of tropical rain.
What is the best time to visit Green Island?
Many visitors prefer the dry season from June to October for its pleasant, mild conditions. The warmer months offer very warm water for swimming but coincide with stinger season, when a stinger suit is recommended. Green Island is enjoyable year-round.
How warm is the water at Green Island?
The water around Green Island is warm all year, becoming especially warm in the summer months. A rash vest or stinger suit adds comfort and sun protection, and is recommended during stinger season for safety.
When is stinger season at Green Island?
Marine stinger season in the Cairns and Green Island region generally runs from around November to May, during the warmer months. A full-body stinger suit is recommended during this period, and conditions should always be checked on the day.
Does it rain a lot on Green Island?
The wet season (roughly November to April) can bring tropical downpours, often short-lived, along with higher humidity. The dry season is generally sunnier and more settled. Weather can change quickly, so it’s worth checking the forecast before your visit.
Travel Kindly
At Hot Getaways, care is our compass — and a little kindness makes every journey better. When you visit Green Island, we gently ask you to:
- Protect the reef — wear reef-safe sunscreen and never touch or stand on the coral.
- Respect the wildlife — admire the turtles, seabirds and marine life from a distance, and take your rubbish home with you.
- Support local — choosing local operators, cafés and guides helps this beautiful place thrive.
- Honour Country — we travel on the traditional lands and sea Country of Australia’s First Peoples, with gratitude and respect to the Traditional Custodians past and present.
- Be kind to each other — a smile, a little patience and a helping hand make the day lovelier for everyone.
Small acts of care add up to something wonderful. Thank you for travelling kindly.
