Weather in Mackay in October
Australia · 20-year averages, October
Prime time. October is about as good as Mackay gets. Highs average 25.4 °C, lows 22.7 °C, and rain falls on 6 days — nothing in the month is working against you.
October ranks 4 of 12 in Mackay: past the worst of the year but short of August, which is the month to book if the dates are open.
Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average October reaches 30 °C; the day barely swings — 2.7 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest October day reached 30.6 °C and the coldest night fell to 18.9 °C, and the wettest single day dropped 41 mm — roughly 124% of the month's rain in one day.
This is the volatile part. October rainfall has ranged from 2 mm to 126 mm across the twenty years measured — a 124 mm spread around an average of 33 mm. The average is real but almost no individual October looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 14.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.
How October sits in the year
Temperatures hold steady either side: 23.7 °C in September, 25.4 here, 26.7 in November. Nothing about the timing within the month matters much.
Daylight in October
12.5 hours of daylight, gaining 0.6 hours across the month. That is between Mackay's extremes of 13.4 and 10.9 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 25 °C in October — warm enough to stay in as long as you like. The sea peaks at 28.5 °C in February and bottoms out at 23 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
October in Mackay versus nearby
If Mackay is one option among several, the nearby comparison is worth making. Airlie Beach is close enough to be a coin toss — 2.7 °C warmer, 1 day less rain. Rockhampton is the weaker option in October — 5.2 °C warmer, 1 day more rain.
So: October is effectively as good as it gets here — 6 points behind August, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Mackay
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 28.2 | 26.2 | 18 | 224 | 79 | 13.3 | 28.2 | 60 |
| February | 28.2 | 26.4 | 19 | 254 | 80 | 12.8 | 28.5 | 60 |
| March | 27.6 | 25.8 | 17 | 197 | 79 | 12.2 | 28.2 | 63 |
| April | 26.1 | 24.2 | 13 | 87 | 77 | 11.6 | 27.1 | 76 |
| May | 24.2 | 22 | 11 | 54 | 73 | 11.1 | 25.8 | 81 |
| June | 22.3 | 19.8 | 9 | 50 | 74 | 10.9 | 24.4 | 84 |
| July | 21.5 | 18.9 | 5 | 31 | 73 | 11 | 23.3 | 91 |
| August | 21.9 | 19.2 | 3 | 20 | 72 | 11.4 | 23 | 95 |
| September | 23.7 | 20.9 | 3 | 21 | 74 | 11.9 | 23.8 | 95 |
| October | 25.4 | 22.7 | 6 | 33 | 74 | 12.5 | 25 | 89 |
| November | 26.7 | 24.2 | 9 | 64 | 74 | 13.1 | 26.2 | 83 |
| December | 28 | 25.6 | 13 | 136 | 77 | 13.4 | 27.5 | 69 |
See all twelve months in Mackay, or where else to go in October.
Planning the rest of the trip
- Where to eat & stay in Mackay every café, restaurant and hotel
- Flight time to Mackay how long you are actually in the air
- Mackay time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Mackay keep training while you are there