Weather and Nature

Whyalla weather

Temperature, rain and wind in Whyalla (South Australia, Australia), a city of about 20,880 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, 13:30 (Australia/Adelaide)

24 °C

Partly cloudy

Feels like

24 °C

Humidity

28%

Wind

7 km/h

E · Beaufort 2

Dew point

5 °C

Cloud cover

74%

Pressure

1,021 hPa

Hour by hour

Next 24 hours, in the city’s local time.

TimeConditionsTemperatureRainWind
12:30Cloudy22 °C0.0 mm11 km/h
13:30Partly cloudy24 °C0.0 mm7 km/h
14:30Fair25 °C0.0 mm11 km/h
15:30Clear sky25 °C0.0 mm13 km/h
16:30Clear sky25 °C0.0 mm14 km/h
17:30Clear sky25 °C0.0 mm14 km/h
18:30Fair24 °C0.0 mm14 km/h
19:30Clear sky21 °C0.0 mm16 km/h
20:30Clear sky21 °C0.0 mm21 km/h
21:30Clear sky20 °C0.0 mm22 km/h
22:30Clear sky19 °C0.0 mm21 km/h
23:30Clear sky17 °C0.0 mm17 km/h
00:30Clear sky16 °C0.0 mm9 km/h
01:30Clear sky14 °C0.0 mm4 km/h
02:30Clear sky14 °C0.0 mm5 km/h
03:30Clear sky14 °C0.0 mm7 km/h
04:30Clear sky14 °C0.0 mm9 km/h
05:30Clear sky14 °C0.0 mm9 km/h
06:30Clear sky13 °C0.0 mm9 km/h
07:30Clear sky15 °C0.0 mm10 km/h
08:30Clear sky18 °C0.0 mm10 km/h
09:30Clear sky21 °C0.0 mm8 km/h
10:30Clear sky23 °C0.0 mm7 km/h
11:30Clear sky25 °C0.0 mm9 km/h

Next 7 days

DayConditionsLowHighRain outlook
Fri 16/10Cloudy14 °C25 °Cno rain expected · 0.0 mm
Sat 17/10Clear sky13 °C27 °Cno rain expected · 0.0 mm
Sun 18/10Clear sky16 °C30 °Cno rain expected · 0.0 mm
Tue 20/10Partly cloudy17 °C23 °Crain possible · 1.6 mm
Wed 21/10Clear sky16 °C25 °Cno rain expected · 0.0 mm
Thu 22/10Rain20 °C31 °Crain likely · 6.2 mm
Fri 23/10Fair13 °C21 °Crain possible · 0.6 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.

Low, high and rain for the next 7 days in WhyallaChart of the next 7 days in Whyalla: each day’s vertical band runs from the low to the high (from 13 °C to 31 °C across the week) and the bar at the base shows forecast rain, 8.4 mm in total.101520253035°Cmm2514Fri 16/102713Sat 17/103016Sun 18/1023171.6Tue 20/102516Wed 21/1031206.2Thu 22/1021130.6Fri 23/10

Australia/Adelaide

Our own chart, drawn from the 7-day forecast for Whyalla shown above.

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, Whyalla averages 18 °C and about 16 mm of rain over the month, on the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology.

Warmest month

January

Coldest month

July

Wettest month

June

Driest month

January

MonthMean temperatureRainMean humidity
January25 °C16 mm49%
February25 °C17 mm51%
March23 °C16 mm54%
April19 °C22 mm58%
May15 °C27 mm67%
June12 °C32 mm73%
July11 °C26 mm73%
August12 °C25 mm68%
September15 °C29 mm61%
October18 °C16 mm55%
November21 °C18 mm52%
December23 °C20 mm50%
Average temperature and rainfall month by month in WhyallaChart of the Whyalla normals over 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025): the line is each month’s mean temperature, peaking in January and bottoming out in July, and the bars are the month’s average rainfall. The current month is highlighted.1015202530°Cmm010203040JanFebMarAprMayJunJulAugSepOctNovDec
Our own chart, from the NASA POWER 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology for the coordinates of Whyalla.

Frequently asked questions

Will it rain tomorrow in Whyalla?
no rain expected. Rain: 0.0 mm. Low 13 °C, High 27 °C.
What is the temperature in Whyalla right now?
24 °C, partly cloudy. Feels like: 24 °C. Humidity: 28%.
What will the weather be like at the weekend in Whyalla?
Sat 17/10: clear sky, 13 °C / 27 °C, no rain expected. Sun 18/10: clear sky, 16 °C / 30 °C, no rain expected.
Which is the wettest month in Whyalla?
June — ~32 mm (25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025), NASA POWER).
How far ahead does this Whyalla forecast go?
This page shows 7 days. The model run used here is from 16/10/2026, 01:17 UTC, and the page fetches a new one every 30 minutes.

Nearby cities

Forecasts for places near Whyalla:

How to read this page

How to read the min and the max

The week’s high (31 °C) arrives in the afternoon, about two hours after solar noon; the low (13 °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 Whyalla forecast comes from MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS, run of 16/10/2026, 01:17 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 Whyalla 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 Whyalla, go to your national weather service through the World Meteorological Organization warning portal.

WMO Severe Weather Information Centre

Understanding the weather and climate of Whyalla

Is this week in Whyalla above or below the October normal?

The average of the next 7 days in Whyalla works out at 21 °C, against a normal of 18 °C for October over 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). That is 3 °C above typical — a small gap, the size the atmosphere wanders from one week to the next.

Within the week the highest maximum lands on Thu 22/10 (31 °C) and the lowest minimum on Fri 23/10 (13 °C). Forecast rain adds up to 8.4 mm, roughly 53% of everything Whyalla gets in an average October (16 mm). The wettest day is Thu 22/10, with 6.2 mm.

When is the wettest and the driest month in Whyalla?

On the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology, the wettest month in Whyalla is June, at about 32 mm, and the driest is January, at 16 mm. The two extremes differ by only 2 times, which means rain is spread fairly evenly across the year in Whyalla. For October, the month you are reading this in, the average is 16 mm.

What does the dew point say about how Whyalla feels?

Right now in Whyalla the air is at 24 °C with a dew point of 5 °C and relative humidity of 28%. The two are far apart, the signature of dry air: heat feels milder than the reading, but throat, eyes and skin dry out fast.

What is the climate of Whyalla like through the year?

The warmest month in Whyalla is January (25 °C on average) and the coldest is July (11 °C), a swing of about 14 °C around an annual mean of 18 °C. A swing of this size means a genuinely temperate climate: summer and winter call for different clothes, different housing and different habits.

Because Whyalla lies in the southern hemisphere, at 33.03° 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 Whyalla from Adelaide?

The nearest large city to Whyalla is Adelaide, about 231 km away in a straight line, to the south-east, with 1,469,163 inhabitants. With more than two hundred kilometres between them, using the Adelaide forecast for Whyalla is a common mistake: these are weather regimes that can diverge for days. Being larger, Adelaide shows up in more searches, and plenty of people end up reading its forecast assuming it covers Whyalla.

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.

Apparent temperature

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.

Dew point

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

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

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

See the full weather glossary

Source, model and licence

Model
MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS
Model run
16/10/2026, 01:17 UTC
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.