Climate and average weather in Corio

In Corio, the summers are warm, fairly dry, and partly cloudy and the winters are cool, breezy, and partly cloudy.

Best: early January to late April

Over the course of the year, the temperature in Corio typically varies from 8°C to 22°C, and is rarely below 6°C or above 29°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Corio for warm-weather activities are from early January to late April and mid November to late December.

Hottest
Jan
22°
Coldest
Jul
Wettest
Nov
59 mm
Driest
Mar
31 mm
Rain / yr
538 mm
97 wet days
Daylight
9.4–14.6 h
shortest–longest
Elevation
9 m
38.1°S
Clearest
Jan
53% cloud

Corio is suburb of Geelong, Victoria, Australia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Corio weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to late April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Corio, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.6 months, from December 10 to March 27, with daily high temperatures above 20°C. The hottest month of the year in Corio is January, with an average high of 22°C and low of 15°C.

The cool season lasts 3.4 months, from May 30 to September 9, with daily high temperatures below 14°C. The coldest month of the year in Corio is July, with an average low of 8°C and high of 13°C.

Days typically run about 6°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2215
Feb2216
Mar2114
Apr1812
May1611
Jun139
Jul138
Aug138
Sep159
Oct1710
Nov1912
Dec2013

Average hourly temperature in Corio

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on January afternoons, near 22°C, and coldest before dawn in July, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Corio weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 15°43614.37.4
Feb22° / 16°425.713.57.4
Mar21° / 14°315.612.37.1
Apr18° / 12°427116.2
May16° / 11°398.1104.9
Jun13° / 479.49.43.8
Jul13° / 389.59.63.5
Aug13° / 431010.53.7
Sep15° / 5110.511.74.4
Oct17° / 10°559.3135.4
Nov19° / 12°598.714.16.1
Dec20° / 13°497.514.66.7

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Corio gets about 538 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 6.3 months, from around May 25 to Dec 3, peaking in September at about 35% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Mar 11.

November is the wettest month by volume, with 59 mm over about 9 wet days; March is the driest, with 31 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetSep 11 · 35%Mar 11 · 17%
Rain on a day (%)Rain days
Jan196
Feb206
Mar196
Apr247
May268
Jun319
Jul3110
Aug3310
Sep3411
Oct319
Nov289
Dec248

Monthly rainfall

Over a full year, Corio collects about 538 mm of rain across 97 wet days — roughly 45 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 59 mm, while March is the driest at just 31 mm. The three wettest months alone bring about 31% of the year’s total.

0255075JanFebMarAprMayJunJulAugSepOctNovDec434231423947384351555949
Rainfall (mm)Rain days
Jan436
Feb426
Mar316
Apr427
May398
Jun479
Jul3810
Aug4310
Sep5111
Oct559
Nov599
Dec498

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Corio, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around December 23 and lasts for 3.1 months, ending around March 26. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 56% of the time on average.

The cloudier part of the year begins around March 27 and lasts for 2.9 months, ending around June 23. The cloudiest month is May, when it is overcast or mostly cloudy 61% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJan 24 · 58%May 4 · 37%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan5644
Feb5545
Mar4951
Apr4258
May3961
Jun4456
Jul4753
Aug4852
Sep4357
Oct4258
Nov4159
Dec4555

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 14 h 36 min of light; the shortest, around June 8, only 9 h 24 min — a swing of roughly 5 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.36:218:43
Feb13.56:538:21
Mar12.37:237:41
Apr11.07:526:53
May10.08:206:17
Jun9.48:426:04
Jul9.68:406:16
Aug10.58:116:42
Sep11.77:247:10
Oct13.06:377:38
Nov14.16:058:11
Dec14.66:008:38

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Corio averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 12 days.

The sunnier stretch runs 4.5 months, from around Nov 27 to Apr 12. The sunniest month is January, with roughly 12 sunny days (mixed).

The greyest month is June, down near 5 sunny days — about 56% fewer than the January peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedJan 2312 daysJun 115 days
Sunny daysSky
Jan12Mixed
Feb11Mixed
Mar9Mixed
Apr7Gloomy
May5Gloomy
Jun5Gloomy
Jul6Gloomy
Aug6Gloomy
Sep6Gloomy
Oct6Gloomy
Nov7Gloomy
Dec8Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Corio, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.9 months, from around November 26 to March 24. The muggiest month is February, when the air feels humid, muggy or worse about 20% of the time.

The most comfortable stretch runs from around March 25 to November 25, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 16 · 100%Feb 3 · 77%humidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan5530122
Feb4833173
Mar652780
Apr891100
May98200
Jun100000
Jul100000
Aug100000
Sep100000
Oct97300
Nov861230
Dec752050

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Corio is typically light breeze, near 18 km/h, and varies little with the seasons.

The windier part of the year lasts 5.1 months, from around Jun 8 to Nov 9. The windiest month is August, averaging about 19 km/h (light breeze).

The calmer part of the year runs from around Nov 10 to Jun 7, with April the calmest month at about 16 km/h.

0510152025JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezyAug 11 · 20 km/hApr 17 · 16 km/h
Wind speed (km/h)Feels
Jan17light breeze
Feb17light breeze
Mar16light breeze
Apr16light breeze
May17light breeze
Jun18light breeze
Jul19light breeze
Aug19light breeze
Sep19light breeze
Oct18light breeze
Nov17light breeze
Dec17light breeze

Best time to visit Corio

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Corio throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid April, Corio is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Corio for general outdoor tourist activities is from mid November to late April, with a peak score in the third week of January.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJan 18 · 7.5

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan7.4good
Feb7.4good
Mar7.1good
Apr6.2good
May4.9fair
Jun3.8fair
Jul3.5poor
Aug3.7fair
Sep4.4fair
Oct5.4fair
Nov6.1good
Dec6.7good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Corio for hot-weather activities is from late December to mid March, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJan 23 · 5.4

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Corio, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around January (highs near 22°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 13°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Corio sees daytime highs around 22°C and nights near 15°C. Pack sun protection. Worth having: light clothes. About 6 days see rain.

Sea temperature near Corio

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 32 km away) is warmest in February at about 19°C and coldest in August near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan18Cool
Feb19Cool
Mar19Cool
Apr17Cool
May16Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep13Bracing
Oct14Bracing
Nov15Cool
Dec17Cool

UV index (midday) in Corio by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Corio peaks around December 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateLowModerateVery highExtremeDec 19UV 12Jun 18UV 2
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar8Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep4Moderate
Oct7Very high
Nov10Very high
Dec12Extreme

Average hourly UV index in Corio

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in December the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan96.5
Feb85.5
Mar74
Apr4.50
May00
Jun00
Jul00
Aug1.50
Sep4.50
Oct73.5
Nov85.5
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Corio is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Corio banks about 1,597 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

05001,0001,500JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan267
Feb247
Mar237
Apr158
May93
Jun33
Jul9
Aug20
Sep57
Oct107
Nov157
Dec213

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Corio receives about 4.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 7.3 kWh/m².

The brighter stretch of the year lasts 5.8 months, from around Sep 26 to Mar 22. The brightest month is January, averaging about 7.0 kWh/m² (intense).

The dimmest month is June, down near 1.8 kWh/m² — roughly 74% less than the January peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseJan 27.3 kWhJun 171.8 kWh
Solar energy (kWh/m²)Level
Jan7.1Intense
Feb6.1Intense
Mar4.8Bright
Apr3.3Moderate
May2.3Moderate
Jun1.8Dim
Jul2.0Moderate
Aug2.8Moderate
Sep3.9Moderate
Oct5.2Bright
Nov6.3Intense
Dec6.9Intense

Where is Corio?

Corio sits at 38.1°S, 144.4°E, 9 m above sea level, in Australia. The nearest listed city is Lara, 7.0 km away.

Topography around Corio

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Corio.

Within 3 km, the terrain around Corio has only modest variations in elevation — a maximum elevation change of 28 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, large variations in elevation — a maximum elevation change of 1,046 m.

The land around Corio is covered by water (38%) and artificial surfaces (30%) within 3 km, grassland (36%), cropland (21%) and water (20%) within 16 km, and grassland (34%) and water (29%) within 80 km.

3 km
28 m
16 km
366 m
80 km
1,046 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Lara 7.0 km · Geelong 7.0 km · Highton 12 km · Torquay 28 km · Wyndham Vale 30 km · Werribee 32 km · Hoppers Crossing 36 km · Tarneit 37 km

Australia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$65,130
2025
Happiness
6.9 / 10
World Happiness, 2025
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
Religion
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Corio (-38.0833°, 144.3833°, elevation 9 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).