Climate and average weather in Umina Beach

In Umina Beach, the summers are warm, showery, and partly cloudy and the winters are mild and mostly clear.

Best: mid July to late December

Over the course of the year, the temperature in Umina Beach typically varies from 9°C to 26°C, and is rarely below 7°C or above 31°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 Umina Beach for warm-weather activities are from early January to early June and mid July to late December.

Hottest
Jan
26°
Coldest
Jul
Wettest
Feb
101 mm
Driest
Aug
49 mm
Rain / yr
863 mm
112 wet days
Daylight
9.8–14.2 h
shortest–longest
Elevation
10 m
33.5°S
Clearest
Aug
34% cloud

Umina Beach is suburb of Central Coast, New South Wales, Australia.

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

Umina Beach 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 mid July to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.9 months, from November 26 to March 25, with daily high temperatures above 24°C. The hottest month of the year in Umina Beach is January, with an average high of 26°C and low of 19°C.

The cool season lasts 2.9 months, from May 29 to August 25, with daily high temperatures below 18°C. The coldest month of the year in Umina Beach is July, with an average low of 9°C and high of 17°C.

Days typically run about 7°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2619
Feb2520
Mar2418
Apr2215
May1913
Jun1711
Jul179
Aug1810
Sep2012
Oct2214
Nov2316
Dec2518

Average hourly temperature in Umina Beach

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 26°C, and coldest before dawn in July, near C.

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

Umina Beach 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
Jan26° / 19°7810.5146.7
Feb25° / 20°10111.113.26.5
Mar24° / 18°891212.36.8
Apr22° / 15°7710.211.26.8
May19° / 13°709.110.36.5
Jun17° / 11°869.69.85.7
Jul17° / 497.2105.9
Aug18° / 10°496.510.86.7
Sep20° / 12°516.811.87.1
Oct22° / 14°628.512.87.0
Nov23° / 16°811013.76.8
Dec25° / 18°7010.314.27.0

Chance of rain

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

Umina Beach gets about 863 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.9 months, from around Nov 3 to May 2, peaking in February at about 41% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 9.

February is the wettest month by volume, with 101 mm over about 11 wet days; August is the driest, with 49 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 13 · 41%Aug 9 · 19%
Rain on a day (%)Rain days
Jan3411
Feb4011
Mar3812
Apr3410
May319
Jun3110
Jul237
Aug217
Sep237
Oct279
Nov3310
Dec3310

Monthly rainfall

Over a full year, Umina Beach collects about 863 mm of rain across 112 wet days — roughly 72 mm in an average month.

It doesn’t fall evenly. February is the wettest month with 101 mm, while August is the driest at just 49 mm. The three wettest months alone bring about 32% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec7810189777086494951628170
Rainfall (mm)Rain days
Jan7811
Feb10111
Mar8912
Apr7710
May709
Jun8610
Jul497
Aug497
Sep517
Oct629
Nov8110
Dec7010

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Umina Beach, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around June 18 and lasts for 4.0 months, ending around October 16. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 78% of the time on average.

The cloudier part of the year begins around October 17 and lasts for 5.3 months, ending around March 25. The cloudiest month is December, when it is overcast or mostly cloudy 48% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 8 · 81%Dec 8 · 51%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5446
Feb5446
Mar6040
Apr6535
May6535
Jun6337
Jul7327
Aug7822
Sep7426
Oct6238
Nov5347
Dec5248

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 12 min of light; the shortest, around June 9, only 9 h 48 min — a swing of roughly 4 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.06:048:04
Feb13.26:327:47
Mar12.36:577:12
Apr11.27:206:30
May10.37:435:59
Jun9.88:015:49
Jul10.08:016:00
Aug10.87:366:21
Sep11.86:556:43
Oct12.86:147:05
Nov13.75:477:33
Dec14.25:457:57

Sunny days

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

Umina Beach averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 20 days.

The sunnier stretch runs 3.9 months, from around Jun 15 to Oct 11. The sunniest month is August, with roughly 19 sunny days (bright).

The greyest month is November, down near 10 sunny days — about 47% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 920 daysNov 2710 days
Sunny daysSky
Jan12Mixed
Feb10Mixed
Mar12Mixed
Apr13Mixed
May15Mixed
Jun14Mixed
Jul18Bright
Aug19Bright
Sep17Bright
Oct13Mixed
Nov10Mixed
Dec11Mixed

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 Umina Beach, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.8 months, from around November 14 to April 9. The muggiest month is January, when the air feels humid, muggy or worse about 77% of the time.

The most comfortable stretch runs from around April 10 to November 13, and June 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 27 · 100%Jan 29 · 17%oppressivemuggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan81633395
Feb51533416
Mar112440231
Apr35402230
May7421500
Jun937000
Jul973000
Aug982000
Sep8811100
Oct6427900
Nov35342650
Dec162639190

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.

Wind in Umina Beach is steady company: average speeds sit near 14 km/hlight breeze — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeAug 11 · 15 km/hApr 14 · 12 km/h
Wind speed (km/h)Feels
Jan14light breeze
Feb14light breeze
Mar13light breeze
Apr12light breeze
May13light breeze
Jun14light breeze
Jul14light breeze
Aug14light breeze
Sep14light breeze
Oct14light breeze
Nov14light breeze
Dec14light breeze

Hazard calendar for Umina Beach

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Umina Beach sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Umina Beach

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late December, Umina Beach 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 Umina Beach for general outdoor tourist activities is from mid July to early June, with a peak score in the last week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationSep 24 · 7.3

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
Jan6.7good
Feb6.5good
Mar6.8good
Apr6.8good
May6.5good
Jun5.8good
Jul5.9good
Aug6.7good
Sep7.1good
Oct7.0good
Nov6.8good
Dec6.9good

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 Umina Beach for hot-weather activities is from mid November to early April, with a peak score in the second week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 9 · 6.4

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 Umina Beach, 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 26°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 17°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Umina Beach sees daytime highs around 26°C and nights near 19°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

Sea temperature near Umina Beach

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 13 km away) is warmest in February at about 23°C and coldest in August near 18°C.

It's comfortable for a long swim from Nov 16 to Jun 4 — about 6.6 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar23Refreshing
Apr22Refreshing
May21Refreshing
Jun20Cool
Jul19Cool
Aug18Cool
Sep18Cool
Oct19Cool
Nov20Refreshing
Dec21Refreshing

UV index (midday) in Umina Beach 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 Umina Beach peaks around January 16 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 16UV 12Jun 19UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr6High
May4Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov10Very high
Dec12Extreme

Average hourly UV index in Umina Beach

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 January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 6.5 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
Feb8.56
Mar74.5
Apr5.50
May30
Jun00
Jul00
Aug40
Sep5.50
Oct74
Nov85.5
Dec96.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Umina Beach 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. Umina Beach banks about 2,886 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan390
Feb347
Mar342
Apr257
May182
Jun113
Jul92
Aug117
Sep177
Oct241
Nov282
Dec347

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.

Umina Beach receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.5 and 6.8 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Sep 10 to Mar 18. The brightest month is December, averaging about 6.6 kWh/m² (intense).

The dimmest month is June, down near 2.5 kWh/m² — roughly 62% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 316.8 kWhJun 122.5 kWh
Solar energy (kWh/m²)Level
Jan6.5Intense
Feb5.5Bright
Mar4.7Bright
Apr3.8Moderate
May3.0Moderate
Jun2.5Moderate
Jul2.8Moderate
Aug3.8Moderate
Sep4.9Bright
Oct5.7Bright
Nov6.2Intense
Dec6.5Intense

Where is Umina Beach?

Umina Beach sits at 33.5°S, 151.3°E, 10 m above sea level, in Australia. The nearest listed city is Central Coast, 12 km away.

Topography around Umina Beach

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

Within 3 km, the terrain around Umina Beach has only modest variations in elevation — a maximum elevation change of 196 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 288 m; within 80 km, large variations in elevation — a maximum elevation change of 921 m.

The land around Umina Beach is covered by trees (45%), water (26%) and artificial surfaces (25%) within 3 km, trees (51%) and water (41%) within 16 km, and trees (55%) and water (32%) within 80 km.

3 km
196 m
16 km
288 m
80 km
921 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: Central Coast 12 km · Pittwater 16 km · Dee Why 25 km · Saint Ives 27 km · Hornsby 28 km · Wahroonga 28 km · Manly 31 km · Chatswood 33 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 Umina Beach (-33.5231°, 151.3133°, elevation 10 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).