Weather in Townsville in March
Australia · 20-year averages, March
Shoulder season. March is shoulder season in Townsville — cheaper, quieter, and a genuine gamble. Highs average 30.8 °C, lows 23.7 °C, and rain falls on 14 days — nothing in the month is working against you.
March ranks 9 of 12 in Townsville: past the worst of the year but short of August, which is the month to book if the dates are open.
Rain on 14 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30.8 °C days and 23.7 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 20 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest March day reached 37.4 °C and the coldest night fell to 18.7 °C, and the wettest single day dropped 101 mm — roughly 77% of the month's rain in one day.
This is the volatile part. March rainfall has ranged from 27 mm to 488 mm across the twenty years measured — a 461 mm spread around an average of 131 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 is light at 11.5 km/h, so the temperature on the page is close to the temperature on your skin, 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: 31.7 °C in February, 30.8 here, 30 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 7 days less of it, so pushing the dates later buys drier weather.
Daylight in March
12.2 hours of daylight, losing 0.6 hours across the month. That is between Townsville's extremes of 13.3 and 11 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 28.5 °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
Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Townsville versus nearby
If Townsville is one option among several, the nearby comparison is worth making. Airlie Beach is close enough to be a coin toss — 2 °C cooler, 1 day more rain. Cairns is close enough to be a coin toss — within a degree on temperature, 9 days more rain.
So: March is a compromise. August is 41 points better and is what Townsville 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 Townsville
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 32.4 | 25.1 | 17 | 215 | 74 | 13.2 | 28.8 | 41 |
| February | 31.7 | 24.8 | 18 | 236 | 79 | 12.7 | 29 | 44 |
| March | 30.8 | 23.7 | 14 | 131 | 79 | 12.2 | 28.5 | 55 |
| April | 30 | 21.6 | 7 | 48 | 75 | 11.7 | 27.5 | 74 |
| May | 28.1 | 18.8 | 5 | 28 | 71 | 11.2 | 26.2 | 87 |
| June | 26.2 | 16.4 | 5 | 24 | 72 | 11 | 24.9 | 92 |
| July | 25.9 | 15.5 | 3 | 22 | 69 | 11.1 | 24.1 | 95 |
| August | 27.2 | 16.4 | 2 | 12 | 66 | 11.4 | 24 | 96 |
| September | 29.8 | 19.2 | 2 | 11 | 65 | 12 | 24.7 | 84 |
| October | 31.6 | 21.6 | 5 | 21 | 64 | 12.5 | 25.7 | 71 |
| November | 32.6 | 23.4 | 7 | 42 | 65 | 13 | 26.9 | 62 |
| December | 33.5 | 24.9 | 10 | 87 | 68 | 13.3 | 28.2 | 51 |
See all twelve months in Townsville, or where else to go in March.
Planning the rest of the trip
- Where to eat & stay in Townsville every café, restaurant and hotel
- Flight time to Townsville how long you are actually in the air
- Townsville time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Townsville keep training while you are there