Colac Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
26.1 28.3 23.9 19.8 16.2 13.7 13.3 14.5 17.1 19.0 20.2 23.7 19.6
Mean Min (°C)
12.4 13.6 10.8 7.3 7.0 4.9 4.0 4.3 6.0 7.1 7.1 10.4 8.0
Mean Rain (mm)
38.6 28.3 30.6 43.7 52.2 58.0 64.7 68.6 61.1 63.2 48.1 36.7 602.2
Median Rain (mm)
24.8 32.0 20.8 31.6 43.6 64.2 58.6 64.8 61.4 72.6 49.6 30.1 584.7
Mean Rain Days
6.8 6.1 8.1 11.2 15.4 17.4 20.0 18.7 16.4 14.2 10.9 9.6 155.5

Colac Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
37.8 39.2 39.2 27.1 24.0 17.9 17.9 22.9 25.0 27.0 33.5 41.5 41.5
Low Max (°C)
16.6 18.8 14.4 13.2 7.3 8.7 8.9 9.8 11.8 12.3 13.7 15.8 7.3
High Min (°C)
17.9 21.1 17.7 15.8 11.8 10.4 9.0 10.7 17.0 14.7 18.3 20.0 21.1
Low Min (°C)
4.6 5.5 4.0 -1.8 -1.2 -2.1 -2.5 -0.2 0.7 0.2 0.4 4.7 -2.5
High Rain (mm)
61.2 66.0 42.6 42.0 53.0 26.4 24.8 26.0 48.2 38.6 34.4 60.2 66.0

Colac Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
27.2 29.6 25.3 20.7 17.2 13.8 13.8 15.0 17.1 19.0 20.2 23.7 19.6
Low Mn. Max (°C)
25.0 27.1 22.4 18.9 15.3 13.6 12.8 14.0 17.1 19.0 20.1 23.6 19.6
High Mn. Min (°C)
12.9 13.7 11.4 8.2 7.0 5.3 4.6 5.2 6.0 7.1 7.6 10.4 8.0
Low Mn. Min (°C)
11.9 13.5 10.1 6.4 6.9 4.4 3.5 3.4 6.0 7.1 6.5 10.3 8.0
High Rain (mm)
148.6 86.8 90.0 105.2 116.0 101.2 126.4 128.4 130.6 150.2 93.4 102.0 845.3
Low Rain (mm)
1.2 0.2 2.0 6.4 15.4 13.4 14.8 29.4 24.0 14.6 16.4 12.2 392.2

Colac Annual Temperatures & Rainfall

Colac annual climate

Colac Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 0.0
≥ 35°C
2.5 5.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 8.0
≥ 30°C
8.5 10.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 6.0 26.0
≤ 2°C
0.0 0.0 0.0 2.5 1.5 5.5 7.0 7.5 6.0 1.0 1.5 0.0 29.0
≤ 0°C
0.0 0.0 0.0 1.5 1.0 2.5 2.5 1.0 0.0 0.0 0.0 0.0 6.0

Colac 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
33.8 36.6 29.0 25.3 19.3 15.5 15.2 17.5 21.2 21.7 25.2 32.7 26.5
Low Max
19.5 22.2 19.6 15.7 13.4 11.8 11.7 12.2 13.5 14.6 15.9 17.6 13.5
High Min
16.5 18.9 14.6 10.8 10.8 8.1 6.4 7.6 10.7 9.9 10.9 14.5 13.2
Low Min
8.5 8.8 7.3 3.0 3.3 0.5 1.2 1.4 1.3 3.4 3.3 5.8 3.2

Colac Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
2 2 2 2 2 2 2 2 1 1 2 2 1.0
Earliest Entry
1999 1999 1999 1999 1999 1999 1999 1999 1999 1998 1998 1998 1998
Latest Entry
2000 2000 2000 2000 2000 2000 2000 2000 1999 1999 1999 1999 2000
Years of Maxima
2 2 2 2 2 2 2 2 1 1 2 2 1.0
Earliest Entry
1999 1999 1999 1999 1999 1999 1999 1999 1999 1998 1998 1998 1998
Latest Entry
2000 2000 2000 2000 2000 2000 2000 2000 1999 1999 1999 1999 2000
Years of Rainfall
26 26 26 25 26 26 25 26 26 26 27 26 25.0
Earliest Entry
1999 1999 1999 1999 1999 1999 1999 1999 1999 1998 1998 1998 1998
Latest Entry
2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024 2024

Station Details

COLAC AIRPORT
South West, Victoria
38.2798°S 143.6613°E 122m AMSL
Commenced 1998

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First Tropical Cyclone of 2025

13:01 AEDT Tropical Cyclone (TC) Dikeledi was declared at 11:00am AEDT on Saturday 11th of January just off the northeast coast of Madagascar, after having been a tropical storm in the southwest Indian Ocean for the last 6 days.    Though TC Dikeledi is the first cyclone of 2025, it isn’t the first tropical cyclone of the South West Indian Ocean 2024-2025 season.

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