Weather in Ballarat in May
Australia · 20-year averages, May
A good month. May is a solid month to be in Ballarat. Highs sit at 14.6 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
May ranks 8 of 12 in Ballarat: past the worst of the year but short of February, which is the month to book if the dates are open.
Rain on 10 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 14.6 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest May day reached 24.1 °C and the coldest night fell to -0.9 °C, and the wettest single day dropped 38 mm — roughly 84% of the month's rain in one day.
May is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest May on record still delivered 84 mm against 14 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 45 mm average is a reasonable planning figure, not a promise.
Wind is light at 9.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 82%, which at 14.6 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How May sits in the year
The month is on the way down: 4.7 °C cooler than April, with June dropping another 3.2 °C. The first week and the last are not the same trip.
Daylight in May
May sits at the dark end of Ballarat's year — 10.1 hours of daylight against 14.7 at midsummer, losing 0.8 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
Despite being inland, the year stays fairly even: 24.9 °C between the year's warmest afternoons and coldest nights.
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.
May in Ballarat versus nearby
If Ballarat is one option among several, the nearby comparison is worth making. Bendigo is a better bet in May — 2 °C warmer, 2 days less rain. Melbourne is close enough to be a coin toss — 2.1 °C warmer, 2 days more rain.
So: May is a compromise. February is 24 points better and is what Ballarat 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 Ballarat
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 28.1 | 11.8 | 6 | 39 | 56 | 14.5 | 84 |
| February | 26.8 | 11.8 | 6 | 39 | 61 | 13.5 | 89 |
| March | 24 | 10.5 | 6 | 34 | 64 | 12.4 | 89 |
| April | 19.3 | 7.9 | 7 | 43 | 72 | 11.2 | 85 |
| May | 14.6 | 5.8 | 10 | 45 | 82 | 10.1 | 65 |
| June | 11.4 | 4 | 12 | 54 | 88 | 9.6 | 52 |
| July | 10.5 | 3.4 | 12 | 55 | 88 | 9.8 | 49 |
| August | 11.5 | 3.2 | 13 | 57 | 85 | 10.6 | 51 |
| September | 14.4 | 4.3 | 11 | 52 | 79 | 11.8 | 63 |
| October | 18.1 | 5.8 | 9 | 47 | 73 | 13 | 78 |
| November | 22.2 | 8.2 | 9 | 56 | 67 | 14.1 | 83 |
| December | 25 | 9.7 | 7 | 43 | 60 | 14.7 | 87 |
See all twelve months in Ballarat, or where else to go in May.
Planning the rest of the trip
- Where to eat & stay in Ballarat every café, restaurant and hotel
- Flight time to Ballarat how long you are actually in the air
- Ballarat time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Ballarat keep training while you are there