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Bacchus Marsh, Victoria climate
Cfb Oceanic / temperate
Bacchus Marsh has a mildly seasonal mild-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is January with an average daily high near 27°C, while the coldest is July averaging around 6°C at night. Precipitation is fairly even year-round, totalling about 517 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsBacchus Marsh climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 24 | 21 | 17 | 14 | 13 | 15 | 17 | 20 | 23 | 25 |
| Avg temp (°C) | 21 | 21 | 19 | 15 | 13 | 10 | 10 | 10 | 12 | 14 | 17 | 19 |
| Avg low (°C) | 14 | 14 | 13 | 10 | 8 | 6 | 6 | 6 | 7 | 9 | 11 | 12 |
| Precipitation (mm) | 39 | 42 | 38 | 42 | 35 | 42 | 33 | 39 | 46 | 49 | 60 | 53 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 27 | 24 | 21 | 17 | 14 |
| Avg temp (°C) | 21 | 21 | 19 | 15 | 13 | 10 |
| Avg low (°C) | 14 | 14 | 13 | 10 | 8 | 6 |
| Precipitation (mm) | 39 | 42 | 38 | 42 | 35 | 42 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 15 | 17 | 20 | 23 | 25 |
| Avg temp (°C) | 10 | 10 | 12 | 14 | 17 | 19 |
| Avg low (°C) | 6 | 6 | 7 | 9 | 11 | 12 |
| Precipitation (mm) | 33 | 39 | 46 | 49 | 60 | 53 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 8 | 8 | 10 | 13 | 14 | 14 | 15 | 14 | 13 | 11 | 10 |
| Days with high ≥ 32°C (days) | 7 | 6 | 3 | 0.1 | — | — | — | — | — | 0.5 | 2 | 4 |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.1 | 0.5 | 0.3 | 0.1 | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 8 | 8 | 8 | 10 | 13 | 14 |
| Days with high ≥ 32°C (days) | 7 | 6 | 3 | 0.1 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | — | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 15 | 14 | 13 | 11 | 10 |
| Days with high ≥ 32°C (days) | — | — | — | 0.5 | 2 | 4 |
| Days with low ≤ 0°C (days) | 0.5 | 0.3 | 0.1 | — | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 55 | 56 | 56 | 60 | 61 | 62 | 60 | 62 | 63 | 64 | 60 |
| Clear days (≤ 30% cloud) | 7 | 6 | 7 | 6 | 4 | 4 | 3 | 4 | 4 | 5 | 4 | 6 |
| Partly cloudy days (30–70%) | 13 | 12 | 14 | 13 | 15 | 15 | 16 | 16 | 13 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 12 | 10 | 11 | 11 | 12 | 12 | 12 | 11 | 13 | 14 | 15 | 14 |
| Relative humidity (%) | 60 | 62 | 66 | 73 | 82 | 88 | 87 | 84 | 80 | 74 | 69 | 63 |
| Wind speed (mph) | 5.9 | 5.5 | 5.1 | 4.5 | 4.4 | 4.6 | 4.9 | 5.3 | 5.2 | 5.2 | 5.4 | 5.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 55 | 56 | 56 | 60 | 61 |
| Clear days (≤ 30% cloud) | 7 | 6 | 7 | 6 | 4 | 4 |
| Partly cloudy days (30–70%) | 13 | 12 | 14 | 13 | 15 | 15 |
| Cloudy days (≥ 70%) | 12 | 10 | 11 | 11 | 12 | 12 |
| Relative humidity (%) | 60 | 62 | 66 | 73 | 82 | 88 |
| Wind speed (mph) | 5.9 | 5.5 | 5.1 | 4.5 | 4.4 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 62 | 60 | 62 | 63 | 64 | 60 |
| Clear days (≤ 30% cloud) | 3 | 4 | 4 | 5 | 4 | 6 |
| Partly cloudy days (30–70%) | 16 | 16 | 13 | 12 | 11 | 11 |
| Cloudy days (≥ 70%) | 12 | 11 | 13 | 14 | 15 | 14 |
| Relative humidity (%) | 87 | 84 | 80 | 74 | 69 | 63 |
| Wind speed (mph) | 4.9 | 5.3 | 5.2 | 5.2 | 5.4 | 5.7 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Melbourne Airport, a weather station, about 35 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.