Reef Health Updates

Reef health update | June 2026

Reef health update | June 2026 While heat stress has eased across the Great Barrier Reef Marine Park from summer, sea surface temperatures remain slightly above average

Reef health update | 7 May 2026

Reef health update | 07 May 2026 Sea surface temperatures continued to ease across the Marine Park this week. Queensland’s wet season has also come to an end, ranking a

Reef health update | 30 April 2026

Reef health update | 30 April 2026 Sea surface temperatures continue to ease across the Marine Park, and with the changing of seasons we are seeing the last of the turtl

Reef health update | 23 April 2026

Reef health update | 23 April 2026 Ex-Tropical Cyclone Maila crossed Cape York Peninsula as a tropical low on 15 April, bringing moderate rainfall of up to 50mm to coast

Reef health update | 16 April 2026

Sea surface temperatures continued to cool, dropping by a further 0.4–0.6°C this week across the Marine Park. Ex-Tropical Cyclone Maila has weakened and was downgraded

Reef health update | 9 April 2026

Reef health update | 9 April 2026 Sea surface temperatures continued to cool this week, dropping by 0.2–0.4°C across most of the Marine Park. Tropical Cyclone Maila (37

Reef health update | 2 April 2026

Sea surface temperatures continue to ease across the Marine Park this week, dropping by around 0.1–0.2°C. Heavy rainfall from ex-Tropical Cyclone Narelle caused a major

Reef health update | 26 March 2026

We are thinking of communities in the Far Northern region affected by Tropical Cyclone Narelle. Tropical Cyclone Narelle passed through the Far Northern region of the Ma

Reef health update | 19 March 2026

Tropical Cyclone Narelle (currently Category 5) has developed in the Coral Sea and is forecast to decrease to a Category 4 before crossing the Far Northern region of the

Reef Health Update | 12 March

Reef health update - 12 March 2026 Sea surface temperatures eased slightly across the Marine Park over the past week. A tropical low crossed the Marine Park on 5–6 Marc

Reef Health Update | 5 March 2026

A tropical low is developing in the Coral Sea off the east coast of North Queensland. The Bureau of Meteorology advises there is currently a low to moderate chance of it

Reef Health Update | 26 February 2026

Over the past week, sea surface temperatures across the Marine Park have remained relatively stable. However now that we are well into summer, there is heat build-up in

Reef Health Update | 12 February 2026

Sea surface temperatures have increased slightly across the Far North, North and Central regions over the past week, with little change in the southern region. Temperatur

Reef Health Update | 5 February 2026

Reef health update | 5 February 2026 Sea surface temperatures remain stable across the Marine Park and are only slightly above average for this time of year. Above-av

Reef Health Update | 22 January 2026

Reef health update | 22 January 2026 Heavy rainfall over the past few weeks has led to flood plumes flowing into the Marine Park in the Northern, Central and Southern re

Reef Health Update | 29 January 2026

Sea surface temperatures remain relatively stable across the Marine Park and slightly above the long-term average for this time of year. We’ve moved some of our crown-of

Reef Health Update | 15 January 2026

Ex-Tropical Cyclone Koji formed on 10 January 2026 and made landfall between Ayr and Bowen on 11 January as a category 1 system. The system moved through the Central regi

Reef Health Update | 8 January 2026

Following recent rainfall across parts of northern Queensland, the Reef Authority is working closely with our partners to monitor conditions across the Marine Park. The