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Mount Gambier, South Australia climate
Csb Warm-summer Mediterranean
Mount Gambier has a mildly seasonal mild-temperate climate (Warm-summer Mediterranean, Köppen Csb). The hottest month is February with an average daily high near 26°C, while the coldest is July averaging around 5°C at night. Precipitation totals about 713 mm a year and is strongly seasonal — July alone averages 100 mm while February barely receives 25 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 countsMount Gambier climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 26 | 24 | 20 | 17 | 14 | 14 | 15 | 16 | 19 | 22 | 24 |
| Avg temp (°C) | 18 | 19 | 17 | 15 | 12 | 10 | 9 | 10 | 11 | 13 | 15 | 17 |
| Avg low (°C) | 10 | 11 | 10 | 8 | 7 | 5 | 5 | 5 | 5 | 6 | 8 | 9 |
| Precipitation (mm) | 34 | 25 | 33 | 51 | 71 | 90 | 100 | 98 | 75 | 53 | 44 | 39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 26 | 24 | 20 | 17 | 14 |
| Avg temp (°C) | 18 | 19 | 17 | 15 | 12 | 10 |
| Avg low (°C) | 10 | 11 | 10 | 8 | 7 | 5 |
| Precipitation (mm) | 34 | 25 | 33 | 51 | 71 | 90 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 14 | 15 | 16 | 19 | 22 | 24 |
| Avg temp (°C) | 9 | 10 | 11 | 13 | 15 | 17 |
| Avg low (°C) | 5 | 5 | 5 | 6 | 8 | 9 |
| Precipitation (mm) | 100 | 98 | 75 | 53 | 44 | 39 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 7 | 10 | 13 | 18 | 18 | 21 | 20 | 18 | 14 | 11 | 11 |
| Days with high ≥ 32°C (days) | 4 | 4 | 3 | 0.3 | — | — | — | — | — | 0.3 | 2 | 3 |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.2 | 0.6 | 0.7 | 0.6 | 0.3 | 0.2 | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 7 | 10 | 13 | 18 | 18 |
| Days with high ≥ 32°C (days) | 4 | 4 | 3 | 0.3 | — | — |
| Days with low ≤ 0°C (days) | — | — | — | — | 0.2 | 0.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 21 | 20 | 18 | 14 | 11 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | 0.3 | 2 | 3 |
| Days with low ≤ 0°C (days) | 0.7 | 0.6 | 0.3 | 0.2 | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 54 | 56 | 60 | 63 | 61 | 61 | 60 | 64 | 64 | 64 | 59 |
| Clear days (≤ 30% cloud) | 8 | 7 | 7 | 5 | 3 | 4 | 3 | 3 | 2 | 4 | 4 | 7 |
| Partly cloudy days (30–70%) | 12 | 12 | 12 | 13 | 15 | 15 | 16 | 17 | 14 | 12 | 11 | 12 |
| Cloudy days (≥ 70%) | 11 | 9 | 12 | 12 | 13 | 11 | 12 | 11 | 13 | 15 | 15 | 13 |
| Relative humidity (%) | 70 | 71 | 72 | 74 | 78 | 81 | 81 | 79 | 78 | 76 | 74 | 71 |
| Wind speed (km/h) | 14.0 | 13.8 | 12.9 | 12.3 | 13.2 | 14.4 | 15.3 | 15.9 | 14.9 | 14.0 | 13.6 | 14.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 54 | 54 | 56 | 60 | 63 | 61 |
| Clear days (≤ 30% cloud) | 8 | 7 | 7 | 5 | 3 | 4 |
| Partly cloudy days (30–70%) | 12 | 12 | 12 | 13 | 15 | 15 |
| Cloudy days (≥ 70%) | 11 | 9 | 12 | 12 | 13 | 11 |
| Relative humidity (%) | 70 | 71 | 72 | 74 | 78 | 81 |
| Wind speed (km/h) | 14.0 | 13.8 | 12.9 | 12.3 | 13.2 | 14.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 61 | 60 | 64 | 64 | 64 | 59 |
| Clear days (≤ 30% cloud) | 3 | 3 | 2 | 4 | 4 | 7 |
| Partly cloudy days (30–70%) | 16 | 17 | 14 | 12 | 11 | 12 |
| Cloudy days (≥ 70%) | 12 | 11 | 13 | 15 | 15 | 13 |
| Relative humidity (%) | 81 | 79 | 78 | 76 | 74 | 71 |
| Wind speed (km/h) | 15.3 | 15.9 | 14.9 | 14.0 | 13.6 | 14.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 17 years of daily observations at Mount Gambier Post Office, a weather station, inside the city. 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.