Climate and average weather in Forest Lake

In Forest Lake, the summers are humid, hot, showery, and partly cloudy and the winters are mild and mostly clear.

Best: early April to early November

Over the course of the year, the temperature in Forest Lake typically varies from 8°C to 30°C, and is rarely below 3°C or above 33°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Forest Lake for warm-weather activities is from early April to early November.

Hottest
Jan
30°
Coldest
Jul
Wettest
Feb
116 mm
Driest
Jul
26 mm
Rain / yr
785 mm
90 wet days
Daylight
10.3–13.7 h
shortest–longest
Elevation
57 m
27.6°S
Clearest
Aug
29% cloud

Forest Lake is suburb of Brisbane, Queensland, Australia.

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

Forest Lake 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 April to early November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.5 months, from November 11 to March 28, with daily high temperatures above 27°C. The hottest month of the year in Forest Lake is January, with an average high of 30°C and low of 20°C.

The cool season lasts 2.8 months, from May 27 to August 19, with daily high temperatures below 22°C. The coldest month of the year in Forest Lake is July, with an average low of 8°C and high of 21°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 14°C) in August.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3020
Feb2920
Mar2818
Apr2615
May2312
Jun219
Jul218
Aug228
Sep2511
Oct2614
Nov2817
Dec2919

Average hourly temperature in Forest Lake

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 30°C, and coldest before dawn in July, near C.

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

Forest Lake 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
Jan30° / 20°11511.913.65.0
Feb29° / 20°11611.1135.2
Mar28° / 18°819.212.26.3
Apr26° / 15°356.611.47.4
May23° / 12°525.610.77.8
Jun21° / 475.310.37.5
Jul21° / 263.810.47.9
Aug22° / 323.9118.3
Sep25° / 11°334.711.88.2
Oct26° / 14°67812.77.3
Nov28° / 17°779.113.46.4
Dec29° / 19°10410.713.75.4

Chance of rain

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

Forest Lake gets about 785 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 5.9 months, from around Oct 10 to Apr 7, peaking in January at about 41% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 7.

February is the wettest month by volume, with 116 mm over about 11 wet days; July is the driest, with 26 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 31 · 41%Aug 7 · 8%
Rain on a day (%)Rain days
Jan3812
Feb3911
Mar309
Apr227
May196
Jun175
Jul124
Aug134
Sep165
Oct258
Nov319
Dec3511

Monthly rainfall

Over a full year, Forest Lake collects about 785 mm of rain across 90 wet days — roughly 65 mm in an average month.

It doesn’t fall evenly. February is the wettest month with 116 mm, while July is the driest at just 26 mm. The three wettest months alone bring about 43% of the year’s total.

0255075100125150JanFebMarAprMayJunJulAugSepOctNovDec115116813552472632336777104
Rainfall (mm)Rain days
Jan11512
Feb11611
Mar819
Apr357
May526
Jun475
Jul264
Aug324
Sep335
Oct678
Nov779
Dec10411

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Forest Lake, 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 14 and lasts for 4.1 months, ending around October 16. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 84% of the time on average.

The cloudier part of the year begins around October 17 and lasts for 5.0 months, ending around March 16. The cloudiest month is January, when it is overcast or mostly cloudy 44% 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 10 · 88%Feb 3 · 55%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5644
Feb5743
Mar6733
Apr7327
May7129
Jun7129
Jul7921
Aug8416
Sep8020
Oct7030
Nov6238
Dec5842

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 13 h 42 min of light; the shortest, around June 5, only 10 h 18 min — a swing of roughly 3 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.65:106:45
Feb13.05:336:32
Mar12.25:526:04
Apr11.46:085:29
May10.76:255:04
Jun10.36:404:56
Jul10.46:415:06
Aug11.06:225:23
Sep11.85:475:38
Oct12.75:135:53
Nov13.44:526:15
Dec13.74:526:36

Sunny days

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

Forest Lake averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 23 days.

The sunnier stretch runs 6.0 months, from around Apr 15 to Oct 15. The sunniest month is August, with roughly 21 sunny days (bright).

The greyest month is February, down near 9 sunny days — about 56% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 923 daysFeb 269 days
Sunny daysSky
Jan10Mixed
Feb9Mixed
Mar11Mixed
Apr14Mixed
May16Bright
Jun17Bright
Jul20Bright
Aug21Bright
Sep19Bright
Oct15Mixed
Nov11Mixed
Dec10Mixed

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 Forest Lake, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.5 months, from around October 31 to April 15. The muggiest month is February, when the air feels humid, muggy or worse about 96% of the time.

The most comfortable stretch runs from around April 16 to October 30, and August is the most comfortable month — the air is dry or comfortable 98% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 9 · 99%Feb 16 · 3%oppressivemuggydrycomfortablehumidhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan182744210
Feb033143211
Mar212453570
Apr163935910
May533313200
Jun78184000
Jul8992000
Aug88102000
Sep66258000
Oct363622500
Nov1527362120
Dec417343690

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 Forest Lake is steady company: average speeds sit near 9 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeMar 3 · 9 km/hMay 23 · 8 km/h
Wind speed (km/h)Feels
Jan9calm
Feb9calm
Mar9calm
Apr8calm
May8calm
Jun8calm
Jul8calm
Aug8calm
Sep8calm
Oct9calm
Nov9calm
Dec9calm

Hazard calendar for Forest Lake

In seasonPeak

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

Forest Lake sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Forest Lake's rainy season runs October–March, when most of the year's rain falls.

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

Best time to visit Forest Lake

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid April, Forest Lake is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Forest Lake for general outdoor tourist activities is from late March to early November, with a peak score in the second week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 9 · 8.5

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
Jan5.0fair
Feb5.2fair
Mar6.3good
Apr7.4good
May7.8ideal
Jun7.6ideal
Jul7.9ideal
Aug8.3ideal
Sep8.1ideal
Oct7.3good
Nov6.4good
Dec5.5fair

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 Forest Lake for hot-weather activities is from late August to late May, with a peak score in the last week of September.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationSep 25 · 7.5

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 Forest Lake, 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 30°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 21°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Forest Lake sees daytime highs around 30°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

Sea temperature near Forest Lake

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 27°C and coldest in August near 20°C.

It's comfortable for a long swim from Sep 1 to Jul 23 — about 10.7 months when the water holds above 20°C.

20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar26Warm
Apr24Warm
May23Refreshing
Jun21Refreshing
Jul20Refreshing
Aug20Cool
Sep20Refreshing
Oct22Refreshing
Nov24Refreshing
Dec25Warm

UV index (midday) in Forest Lake 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 Forest Lake peaks around February 8 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeFeb 8UV 13Jun 19UV 4
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct10Very high
Nov11Extreme
Dec13Extreme

Average hourly UV index in Forest Lake

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 February the burn window is concentrated in the middle of the day: about 8.5 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)
Jan97
Feb8.56.5
Mar7.55.5
Apr6.54
May50
Jun3.50
Jul40
Aug5.50.5
Sep6.53.5
Oct7.55
Nov8.56
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Forest Lake 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
Jun990
Jul990
Aug990
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. Forest Lake banks about 3,628 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan463
Feb409
Mar409
Apr314
May231
Jun151
Jul131
Aug160
Sep238
Oct318
Nov371
Dec432

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.

Forest Lake receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.1 and 6.6 kWh/m².

The brighter stretch of the year lasts 6.4 months, from around Sep 7 to Mar 20. The brightest month is December, averaging about 6.5 kWh/m² (intense).

The dimmest month is June, down near 3.1 kWh/m² — roughly 52% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 286.6 kWhJun 113.1 kWh
Solar energy (kWh/m²)Level
Jan6.3Intense
Feb5.5Bright
Mar4.9Bright
Apr4.3Bright
May3.5Moderate
Jun3.1Moderate
Jul3.4Moderate
Aug4.3Bright
Sep5.3Bright
Oct5.8Bright
Nov6.3Intense
Dec6.4Intense

Where is Forest Lake?

Forest Lake sits at 27.6°S, 153.0°E, 57 m above sea level, in Australia. The nearest listed city is Springfield Lakes, 6.0 km away.

Topography around Forest Lake

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

Within 3 km, the terrain around Forest Lake has only modest variations in elevation — a maximum elevation change of 89 m around an average of 52 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 368 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,330 m.

The land around Forest Lake is covered by trees (56%) and artificial surfaces (36%) within 3 km, trees (54%) and artificial surfaces (31%) within 16 km, and trees (45%), water (25%) and grassland (22%) within 80 km.

3 km
89 m
16 km
368 m
80 km
1,330 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
Nearby: Springfield Lakes 6.0 km · Calamvale 8.0 km · Sunnybank Hills 9.0 km · Redbank Plains 11 km · Eight Mile Plains 14 km · Logan City 14 km · Rochedale South 16 km · Coorparoo 17 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 Forest Lake (-27.6256°, 152.9688°, elevation 57 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).