Deception Bay in Winter
In winter (June, July and August), Deception Bay sees average daytime highs around 21°C and overnight lows near 10°C, with 130 mm of rain over about 17 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 21°C. The sky is clear or mostly clear about 63% of the time across winter, and the air most often feels dry.
Winter is Deception Bay's best season of the year to visit on our travel score. For the whole year in context, see Deception Bay's year-round climate.
- Avg daytime high
- 21°C
- coldest season of the year
- Avg overnight low
- 10°C
- Rainfall
- 130 mm
- 17 wet days
- Avg wind
- 10 km/h
- Travel score
- 7.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Deception Bay in Winter
Across winter, daytime highs hold fairly steady around 21°C.
A typical winter day in Deception Bay reaches about 21°C and drops to 10°C overnight. The warmest of the three months is August, the coolest July.
Deception Bay weather by month
How the three winter months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 22° | 130 | 13.6 | 13.5 | 5.6 |
| Feb | 28° / 21° | 143 | 13.7 | 13 | 5.6 |
| Mar | 27° / 20° | 110 | 14.7 | 12.2 | 6.1 |
| Apr | 25° / 17° | 55 | 10.4 | 11.4 | 7.0 |
| May | 22° / 14° | 69 | 8.3 | 10.7 | 7.3 |
| Jun | 20° / 11° | 58 | 7.4 | 10.3 | 7.1 |
| Jul | 20° / 10° | 31 | 4.4 | 10.5 | 7.7 |
| Aug | 22° / 10° | 40 | 4.8 | 11 | 8.0 |
| Sep | 24° / 13° | 37 | 5.9 | 11.8 | 8.1 |
| Oct | 25° / 16° | 77 | 8.6 | 12.7 | 7.4 |
| Nov | 26° / 19° | 87 | 9.8 | 13.3 | 6.7 |
| Dec | 28° / 20° | 115 | 12 | 13.7 | 6.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 63% of the time across winter.
Chance of precipitation in Winter
Deception Bay gets around 130 mm of rain over 17 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 10 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 24 min in early June to 11 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.6 kWh/m².
Hazard calendar for Deception Bay
None of Deception Bay's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Deception Bay sits in the South Indian Ocean cyclone belt; the season peaks January–March.
Deception Bay's rainy season runs October–March, when most of the year's rain falls.
Is winter a good time to visit Deception Bay?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Deception Bay for general sightseeing.
What to pack for Deception Bay in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Deception Bay sees daytime highs around 21°C and nights near 10°C. Little to plan around — just the basics. About 17 days see rain.
Sea temperature near Deception Bay in Winter
The nearest coast averages about 20°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in February at about 27°C and coldest in August near 20°C.
It's comfortable for a long swim from Aug 27 to Jul 31 — about 11.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 27 | 26 | 24 | 23 | 21 | 20 | 20 | 20 | 22 | 24 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Cool | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 27 | Warm |
| Mar | 26 | Warm |
| Apr | 24 | Warm |
| May | 23 | Refreshing |
| Jun | 21 | Refreshing |
| Jul | 20 | Refreshing |
| Aug | 20 | Cool |
| Sep | 20 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 24 | Refreshing |
| Dec | 25 | Warm |
UV index in Deception Bay in Winter
Clear-sky midday UV across winter averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Deception Bay peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 14 | 11 | 8 | 5 | 4 | 5 | 6 | 8 | 10 | 11 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | High |
| Jun | 4 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 10 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Where is Deception Bay?
Deception Bay sits at 27.2°S, 153.0°E, 13 m above sea level, in Australia. The nearest listed city is North Lakes, 3.0 km away.
Topography around Deception Bay
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Deception Bay.
Within 3 km, the terrain around Deception Bay has only modest variations in elevation — a maximum elevation change of 42 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 335 m; within 80 km, large variations in elevation — a maximum elevation change of 903 m.
The land around Deception Bay is covered by artificial surfaces (32%), trees (27%) and water (22%) within 3 km, water (34%) and trees (31%) within 16 km, and trees (39%) and water (35%) within 80 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
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 Deception Bay (-27.1935°, 153.0263°, elevation 13 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.