Mount Gambier weather
Temperature, rain and wind in Mount Gambier (South Australia, Australia), a city of about 25,591 people: how it is right now, hour by hour into tomorrow, the next 7 days and what each month of the year is like.
This page is not in Google’s index: the city is small, or it gets the same forecast as a large city next to it.
Right now
Friday 16 October, 20:30 (Australia/Adelaide)
15 °C
Clear sky
Feels like
15 °C
Humidity
83%
Wind
10 km/h
ENE · Beaufort 2
Dew point
12 °C
Cloud cover
9%
Pressure
1,026 hPa
Hour by hour
Next 24 hours, in the city’s local time.
| Time | Conditions | Temperature | Rain | Wind |
|---|---|---|---|---|
| 20:30 | Clear sky | 15 °C | 0.0 mm | 10 km/h |
| 21:30 | Clear sky | 15 °C | 0.0 mm | 12 km/h |
| 22:30 | Clear sky | 15 °C | 0.0 mm | 13 km/h |
| 23:30 | Clear sky | 14 °C | 0.0 mm | 13 km/h |
| 00:30 | Clear sky | 14 °C | 0.0 mm | 12 km/h |
| 01:30 | Clear sky | 13 °C | 0.0 mm | 10 km/h |
| 02:30 | Fair | 13 °C | 0.0 mm | 9 km/h |
| 03:30 | Clear sky | 12 °C | 0.0 mm | 9 km/h |
| 04:30 | Clear sky | 12 °C | 0.0 mm | 10 km/h |
| 05:30 | Clear sky | 12 °C | 0.0 mm | 11 km/h |
| 06:30 | Clear sky | 12 °C | 0.0 mm | 12 km/h |
| 07:30 | Clear sky | 13 °C | 0.0 mm | 13 km/h |
| 08:30 | Clear sky | 16 °C | 0.0 mm | 13 km/h |
| 09:30 | Clear sky | 18 °C | 0.0 mm | 14 km/h |
| 10:30 | Clear sky | 20 °C | 0.0 mm | 15 km/h |
| 11:30 | Clear sky | 22 °C | 0.0 mm | 16 km/h |
| 12:30 | Clear sky | 23 °C | 0.0 mm | 17 km/h |
| 13:30 | Fair | 23 °C | 0.0 mm | 17 km/h |
| 14:30 | Fair | 23 °C | 0.0 mm | 18 km/h |
| 15:30 | Partly cloudy | 23 °C | 0.0 mm | 18 km/h |
| 16:30 | Fair | 23 °C | 0.0 mm | 16 km/h |
| 17:30 | Fair | 22 °C | 0.0 mm | 16 km/h |
| 18:30 | Fair | 21 °C | 0.0 mm | 9 km/h |
| 19:30 | Clear sky | 19 °C | 0.0 mm | 11 km/h |
Next 7 days
| Day | Conditions | Low | High | Rain outlook |
|---|---|---|---|---|
| Fri 16/10 | Clear sky | 12 °C | 15 °C | no rain expected · 0.0 mm |
| Sat 17/10 | Clear sky | 12 °C | 23 °C | no rain expected · 0.0 mm |
| Sun 18/10 | Fair | 13 °C | 24 °C | no rain expected · 0.0 mm |
| Tue 20/10 | Light rain | 13 °C | 21 °C | rain likely · 11 mm |
| Wed 21/10 | Cloudy | 11 °C | 21 °C | rain unlikely · 0.2 mm |
| Thu 22/10 | Cloudy | 12 °C | 28 °C | rain possible · 0.8 mm |
| Fri 23/10 | Clear sky | 9 °C | 19 °C | rain likely · 5.7 mm |
This column is our own reading: the global model does not publish a probability of precipitation for this region, so we classify the day from the forecast symbol and the total in millimetres. It is not an official probability figure.
Australia/Adelaide
What each number means
- Rain (mm)
- 1 millimetre of rain is 1 litre of water per square metre. Up to 2 mm in a day is drizzle; from 10 mm it is proper rain; more than 50 mm in a few hours is the amount that floods streets.
- Humidity
- Relative humidity is how much water vapour the air holds compared with the most it can hold at that temperature. Above 80% sweat evaporates slowly and heat feels worse; below 30% your throat and eyes dry out.
- Dew point
- The dew point is the temperature at which the air would start to condense. The closer it is to the air temperature, the muggier it feels. Above 20 °C the air already feels heavy.
- Feels like
- "Feels like" combines temperature, wind and humidity: strong wind carries heat away from the body, so it feels colder than the thermometer; high humidity in the heat makes it feel warmer.
- Wind
- Wind is given as a speed and the direction it blows from. Up to 20 km/h you barely notice it; at 40 km/h it moves branches and parasols; above 60 km/h it brings down trees and roof tiles.
- Cloud cover
- Cloud cover as a percentage is how much of the sky is covered. Up to 20% is a clear sky; above 80% the sun barely gets through.
- Chance of rain
- The model does not publish a probability of precipitation for this region. This column is our own reading: the global model does not publish a probability of precipitation for this region, so we classify the day from the forecast symbol and the total in millimetres. It is not an official probability figure.
Month-by-month climate
In October, Mount Gambier averages 13 °C and about 53 mm of rain over the month, on the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology.
Warmest month
February
Coldest month
July
Wettest month
July
Driest month
February
| Month | Mean temperature | Rain | Mean humidity |
|---|---|---|---|
| January | 18 °C | 32 mm | 69% |
| February | 18 °C | 27 mm | 71% |
| March | 17 °C | 38 mm | 72% |
| April | 15 °C | 48 mm | 75% |
| May | 13 °C | 69 mm | 78% |
| June | 12 °C | 89 mm | 80% |
| July | 11 °C | 95 mm | 81% |
| August | 11 °C | 95 mm | 79% |
| September | 12 °C | 69 mm | 77% |
| October | 13 °C | 53 mm | 75% |
| November | 15 °C | 50 mm | 74% |
| December | 16 °C | 43 mm | 71% |
Frequently asked questions
- Will it rain tomorrow in Mount Gambier?
- no rain expected. Rain: 0.0 mm. Low 12 °C, High 23 °C.
- What is the temperature in Mount Gambier right now?
- 15 °C, clear sky. Feels like: 15 °C. Humidity: 83%.
- What will the weather be like at the weekend in Mount Gambier?
- Sat 17/10: clear sky, 12 °C / 23 °C, no rain expected. Sun 18/10: fair, 13 °C / 24 °C, no rain expected.
- Which is the wettest month in Mount Gambier?
- July — ~95 mm (25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025), NASA POWER).
- How far ahead does this Mount Gambier forecast go?
- This page shows 7 days. The model run used here is from 16/10/2026, 09:22 UTC, and the page fetches a new one every 30 minutes.
Nearby cities
Forecasts for places near Mount Gambier:
- Warrnambool 162 km
- Horsham 177 km
- Ballarat 272 km
- Highton 312 km
- Torquay 315 km
- Geelong 316 km
- Corio 317 km
- Lara 319 km
How to read this page
How to read the min and the max
The week’s high (28 °C) arrives in the afternoon, about two hours after solar noon; the low (9 °C) just before sunrise. Both are air temperature in the shade, two metres above ground — in direct sun or over asphalt a thermometer reads higher.
Where this number comes from
The Mount Gambier forecast comes from MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS, run of 16/10/2026, 09:22 UTC. The month-by-month climate comes from NASA POWER, climatology of 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). Both are credited in full at the foot of this page.
What a forecast cannot promise
Out to two days accuracy is high; by day seven the trend matters more than the exact figure. For Mount Gambier the model publishes no rain probability, so the expectation column is our reading.
Severe weather warnings
This page is informational. For official warnings of storms, gales or flooding affecting Mount Gambier, go to your national weather service through the World Meteorological Organization warning portal.
Understanding the weather and climate of Mount Gambier
Is this week in Mount Gambier above or below the October normal?
The average of the next 7 days in Mount Gambier works out at 17 °C, against a normal of 13 °C for October over 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). That is 3 °C above typical: a warm week for the season, and anyone comparing with the same week last year will notice it.
Within the week the highest maximum lands on Thu 22/10 (28 °C) and the lowest minimum on Fri 23/10 (9 °C). Forecast rain adds up to 17 mm, roughly 33% of everything Mount Gambier gets in an average October (53 mm). The wettest day is Tue 20/10, with 11 mm.
When is the wettest and the driest month in Mount Gambier?
On the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology, the wettest month in Mount Gambier is July, at about 95 mm, and the driest is February, at 27 mm. July takes 3.5 times more than February, so rain in Mount Gambier has a real season even though it never stops altogether. For October, the month you are reading this in, the average is 53 mm.
What does the dew point say about how Mount Gambier feels?
Right now in Mount Gambier the air is at 15 °C with a dew point of 12 °C and relative humidity of 83%. With the two values that close, sweat evaporates slowly and the heat weighs more than the thermometer suggests — that is the working definition of muggy.
What is the climate of Mount Gambier like through the year?
The warmest month in Mount Gambier is February (18 °C on average) and the coldest is July (11 °C), a swing of about 7 °C around an annual mean of 14 °C. With a swing that size the seasons show up in the wardrobe, but none of them is severe.
Because Mount Gambier lies in the southern hemisphere, at 37.83° south, summer falls in December, January and February — which is why the warmest month shows up at either end of the calendar.
How far is Mount Gambier from Geelong?
The nearest large city to Mount Gambier is Geelong, about 316 km away in a straight line, to the east, with 282,809 inhabitants. With more than two hundred kilometres between them, using the Geelong forecast for Mount Gambier is a common mistake: these are weather regimes that can diverge for days. Being larger, Geelong shows up in more searches, and plenty of people end up reading its forecast assuming it covers Mount Gambier.
Words on this page
Apparent temperature
The temperature the body actually feels, rather than the one on the thermometer. It combines air temperature with wind, which carries heat away faster, and humidity, which slows the evaporation of sweat. That is why 30 °C in dry air with a breeze is easier than 28 °C in still, muggy air.
Dew point
The temperature air would have to cool to, at constant pressure and moisture, for water to start condensing. The closer the dew point sits to the air temperature, the less room the vapour has and the muggier the day feels.
Millimetre of rain
The depth of water rain would leave on a flat surface with no run-off. One millimetre is one litre per square metre, no matter how large the area measured is.
Standard definition by World Meteorological Organization (WMO) · Millimetre of rain
Relative humidity
How much water vapour the air holds compared with the most it could hold at that temperature, as a percentage. Because that ceiling rises with heat, the same amount of vapour reads high at dawn and low in the afternoon.
Beaufort scale
A 0-to-12 scale that describes wind strength by what it visibly does: smoke rising straight up at 0, leaves moving at 3, large branches bending at 6, roof damage at 9, devastation at 12. It began at sea in the nineteenth century and now has an official equivalence in metres per second.
Standard definition by World Meteorological Organization (WMO) · Beaufort scale
Forecast model
A program that solves the equations of the atmosphere on a grid of points and steps forward in time from the state observed now. Your city forecast is the model value at the nearest grid point, which is why two neighbouring towns get almost the same numbers.
Standard definition by MET Norway (Meteorologisk institutt) · Forecast model
Model run
The time the model was executed with the latest observations. Every forecast belongs to a run, and runs age: one from six hours ago knows nothing about the shower that started afterwards. It is the first thing to check when two sources disagree.
Standard definition by MET Norway (Meteorologisk institutt) · Model run
Climate normal
The average of a climate element — temperature, rainfall, humidity — computed over a long, standardised period, usually thirty years. It does not predict anything: it says what is typical for that place in that month, and gives you a ruler for calling a week warm or wet.
Standard definition by World Meteorological Organization (WMO) · Climate normal
Source, model and licence
- Model
- MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS
- Model run
- 16/10/2026, 09:22 UTC
- Source
- MET Norway (Meteorologisk institutt) — Locationforecast 2.0 — Based on data from MET Norway. Licence: CC BY 4.0 / NLOD 2.0.
- Month-by-month climate
- NASA POWER — Climatology (MERRA-2, 2001–2020) — The data was obtained from National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project — Climatology API v2. Dados públicos da NASA, citação obrigatória.
- Cities, coordinates and population
- Dados de cidades: GeoNames (CC BY 4.0)
The page fetches fresh data every 30 minutes. Informational content. For severe weather warnings, follow your country’s official weather service and civil protection authority.