Weather in Mackay in March
Australia · 20-year averages, March
Shoulder season. March sits in between. You will get good days and you will lose some. You should expect rain on 17 days of the month, which is more days wet than dry.
March ranks 10 of 12 — near the bottom of Mackay's year. August is the month that works, and the swing between the two is 35 points, which is a different holiday rather than a slightly better one.
Rain on 17 days, 5 of them heavy. Enough to need a plan B, not enough to need a plan around it. 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 March reaches 30 °C; the day barely swings — 1.8 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 30.7 °C and the coldest night fell to 21.9 °C, and the wettest single day dropped 163 mm — roughly 83% of the month's rain in one day.
This is the volatile part. March rainfall has ranged from 30 mm to 647 mm across the twenty years measured — a 617 mm spread around an average of 197 mm. The average is real but almost no individual March looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind sits around 17.2 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 79%, high enough to notice on the warm days without dominating them.
How March sits in the year
Temperatures hold steady either side: 28.2 °C in February, 27.6 here, 26.1 in April. Nothing about the timing within the month matters much.
Daylight in March
12.2 hours of daylight, losing 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 28.2 °C in March — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March 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 — within a degree on temperature, 2 days less rain. Rockhampton is close enough to be a coin toss — 2.9 °C warmer, 4 days less rain.
So: March is a compromise. August is 32 points better and is what Mackay is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
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 March.
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