Weather in Mount Gambier in January

Prime time. If you get to pick your dates, January is the one. Highs average 22 °C, lows 14 °C, and rain falls on 5 days — nothing in the month is working against you.

January is the highest-scoring month of the twelve. The nearest rival is February, and the month at the other end of the year is July.

Rain falls on only 5 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

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest January day reached 37.9 °C and the coldest night fell to 10.2 °C, and the wettest single day dropped 72 mm — roughly 225% of the month's rain in one day.

This is the volatile part. January rainfall has ranged from 2 mm to 122 mm across the twenty years measured — a 120 mm spread around an average of 32 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 13.7 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 69%.

How January sits in the year

Temperatures hold steady either side: 20 °C in December, 22 here, 21.9 in February. Nothing about the timing within the month matters much.

Daylight in January

January is at or near the longest days of Mount Gambier's year: 14.5 hours of daylight, losing 0.7 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 17.4 °C in January — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. This is the warmest the water gets all year.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

January in Mount Gambier versus nearby

If Mount Gambier is one option among several, the nearby comparison is worth making. Warrnambool is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Ballarat is close enough to be a coin toss — 6.1 °C warmer, 1 day more rain.

So: January is the answer for Mount Gambier. If it is booked out or priced out, February is the next best thing at 0 points behind, and July is the month to keep off the shortlist.

Every month in Mount Gambier

See all twelve months in Mount Gambier, or where else to go in January.