The best times to visit Heron Island for ideal weather are

April 30th to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Heron Island Travel Info

Weather in Heron Island


Average temperatures in Heron Island vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 58th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Heron Island, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid June where highs are regularly around 86.3°F (30.2°C) with temperatures rarely dropping below 67.5°F (19.7°C) at night.

Heron Island Temperatures (Fahrenheit)


Heron Island Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Heron Island Perceived Temperature (F)


Heron Island Perceived Temperature (C)



Average Heron Island Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 32.6 24.5 17.7
Feb 28.4 18.3 9.4
Mar 46.7 36 28.2
Apr 61.5 51.5 42.6
May 76.7 65.5 55.7
Jun 78.5 68.8 62.1
Jul 81.6 71.1 62.4
Aug 80.5 69.7 60.4
Sep 77.6 65.9 56.5
Oct 63.4 53.1 44.7
Nov 51.3 42.2 35
Dec 45.8 38.9 33.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.3 -4.2 -7.9
Feb -2 -7.6 -12.6
Mar 8.2 2.2 -2.1
Apr 16.4 10.8 5.9
May 24.8 18.6 13.2
Jun 25.8 20.4 16.7
Jul 27.6 21.7 16.9
Aug 26.9 20.9 15.8
Sep 25.3 18.8 13.6
Oct 17.4 11.7 7.1
Nov 10.7 5.7 1.7
Dec 7.7 3.8 0.9


Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Heron Island.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Heron Island (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 0% 0 0
Mar 0% 0 0
Apr 0% 0 0
May 0% 0 0
Jun 0% 0 0
Jul 0% 0 0
Aug 0% 0 0
Sep 0% 0 0
Oct 0% 0 0
Nov 0% 0 0
Dec 0% 0 0

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 0 0 0
Mar 0 0 0
Apr 0 0 0
May 0 0 0
Jun 0 0 0
Jul 0 0 0
Aug 0 0 0
Sep 0 0 0
Oct 0 0 0
Nov 0 0 0
Dec 0 0 0


Humidity and Wind

Heron Island has some very humid months, with other comfortably humid months. The least humid month is April (54.7% relative humidity), and the most humid month is December (78.9%).

Wind in Heron Island is usually calm. The windiest month is November, followed by February and January. November’s average wind speed of around 7.1 knots (8.1 MPH or 13.1 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid April where average top sustained speeds reach 16.7 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Heron Island.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 6.7 Light breeze 13.4 Significant breeze
Feb 6.9 Light breeze 13 Significant breeze
Mar 6.4 Light breeze 13.4 Significant breeze
Apr 6.7 Light breeze 14.1 Significant breeze
May 5.2 Light breeze 12.3 Significant breeze
Jun 5.2 Light breeze 13 Significant breeze
Jul 4 Light breeze 9.8 Significant breeze
Aug 3.9 Barely noticeable 9.7 Gentle breeze
Sep 4.3 Light breeze 10.4 Significant breeze
Oct 6.2 Light breeze 13 Significant breeze
Nov 7.1 Gentle breeze 14.1 Significant breeze
Dec 6.4 Light breeze 12.8 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 69.1%
Feb 60.8%
Mar 59.8%
Apr 54.7%
May 60.2%
Jun 77.9%
Jul 73.6%
Aug 70.4%
Sep 68.3%
Oct 66.4%
Nov 61.1%
Dec 78.9%


Is it Safe to Travel to Heron Island?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Australia; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Heron Island, QL, Australia is July, followed by September and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Heron Island in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 58.3 in December means 58.3% of the tourists vs. July.



Overall Heron Island Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 79.6°F (26.4°C) and 31.4°F (-0.3°C) with far warmer temperatures in the later months. Fall is the second busiest for tourism, which makes it a good time for those looking for things to do.

Winter (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. June – August is the busiest season for tourism in Heron Island, so lodging and other accommodations may cost more than usual.

Spring (September through November)

Spring daily highs range from 84.7°F (29.3°C) and 46.7°F (8.2°C), which will feel chilly given the humidity and wind. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Summer (December through February)

Weather is far too cold this time of year in Heron Island to be enjoyable for warm weather travelers. The average high during this season is between 51.3°F (10.7°C) and 20.4°F (-6.4°C). These times of year are the slowest with tourists.


Best Times to TravelAustralia › Heron Island, QL, Australia