When To Go · Destination Guide

Brisbane and Moreton Island (Mulgumpin)

City convenience meets a sand-island marine park of wrecks, reefs, and whale-season lookouts

Updated Jan 23, 2026 • 11 sources

When to go

Best time to visit Brisbane and Moreton Island (Mulgumpin)

Brisbane is subtropical: summers are hot and humid with afternoon storms, while winters are mild and typically drier.

Best overall window

Milder air, generally drier weather, and more comfortable days for city exploring. Water often sits around 20°C to 23°C.

Outside that window

Hot, humid, and stormprone. Heavy rain and stronger winds can reduce visibility and disrupt ferry schedules.

Start with the overall answer, then switch only when scuba, freedive, snorkel, or topside timing changes the trip in a meaningful way.

The overall row stays visible so you can compare it against the currently selected scope.

BestGoodTradeoffsMore variable

Scope	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Overall	Overall - Jan: Tradeoffs	Overall - Feb: Tradeoffs	Overall - Mar: Tradeoffs	Overall - Apr: Good	Overall - May: Best	Overall - Jun: Best	Overall - Jul: Best	Overall - Aug: Best	Overall - Sep: Best	Overall - Oct: Best	Overall - Nov: Good	Overall - Dec: Tradeoffs

These do not replace the overall planner. Use them only if a specific animal or event is driving your trip dates.

Humpback whale migration viewpoints
Best for Topside, Scuba, Snorkel
Jun to Oct
JanFebMarAprMayJunJulAugSepOctNovDec
Watch for breaches and spouts from Cape Moreton lookouts and during oceanside cruises.
Sea turtle nesting on sand islands
Best for Topside
Nov to Feb
JanFebMarAprMayJunJulAugSepOctNovDec
Turtle nesting activity on Queensland beaches can overlap this period.
Turtle hatchlings season
Best for Topside
Jan to Mar
JanFebMarAprMayJunJulAugSepOctNovDec
Hatchlings can emerge on some Queensland beaches in late summer.
Summer storms and runoff
Best for Scuba, Freedive, Snorkel, Topside
Dec to Mar
JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon storms and heavy rain can reduce bay visibility and increase debris.
Ekka (Royal Queensland Show)
Best for Topside
Aug
JanFebMarAprMayJunJulAugSepOctNovDec
Brisbane's biggest show week draws crowds and can lift accommodation prices.
Brisbane Festival and Riverfire weekend
Best for Topside
Sep
JanFebMarAprMayJunJulAugSepOctNovDec
A peak city weekend with fireworks and high demand.

For island stays, book transport and permits early during Australian school holiday periods.

Apr, Nov: Warm shoulder months. Mix of calm mornings and afternoon sea breezes around 20 km/h.
Dec to Mar: Hot, humid, and storm-prone. Heavy rain and stronger winds can reduce visibility and disrupt ferry schedules.

Built from climate references, access rules, and destination operators. Wildlife timing and route flexibility can shift year to year.