Cairns weather in August
Cairns in August averages 19°C (66°F) and 12 mm of rain. It is one of the driest months of the year here.
Of the twelve months in Cairns, August is the third coldest and the second driest.
- Average temp
- 19°C (66°F)
13–25°C · 56–77°F
- Rainfall
- 12 mm
Not much rain
- Sunshine
- —
What is Cairns like in August?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Cairns in August?
A layer for the evening
The day swings about 12°C between its low and its high.
August compared with July and September
August in Cairns is 0.8°C warmer than July and about as wet as it, which averages 18°C (65°F).
August in Cairns is 2.1°C cooler than September and about as wet as it, which averages 21°C (70°F).
Daylight in Cairns in August
On 15 August the sun is up for 11 hours 32 minutes in Cairns, rising about 06:35 and setting about 18:07 local time.
August ends 24 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 36 minutes short of December, the longest-lit month here.
Where to stay in Cairns
Dates are a starting point for August.
Travel guides for Cairns
What to read before you book.
Cairns weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 25°C / 77°F | 227 mm |
| February | 25°C / 77°F | 278 mm |
| March | 24°C / 75°F | 172 mm |
| April | 22°C / 72°F | 32 mm |
| May | 21°C / 69°F | 21 mm |
| June | 19°C / 66°F | 12 mm |
| July | 18°C / 65°F | 14 mm |
| August | 19°C / 66°F | 12 mm |
| September | 21°C / 70°F | 9 mm |
| October | 23°C / 74°F | 25 mm |
| November | 24°C / 76°F | 59 mm |
| December | 25°C / 78°F | 128 mm |
Check another month
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FAQs about Cairns in August
August climate averages for Cairns, 1991–2020.
Cairns averages 19°C (66°F) in August, ranging from about 13°C (56°F) at night to 25°C (77°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. August sees only about 12 mm, so rain is unlikely to affect your plans.
No. August averages 19°C (66°F) against 21°C (70°F) in September — 2.1°C cooler.
August is 0.8°C warmer than July, and about as wet.
Yes. August falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 11 hours 32 minutes of daylight in mid-August, against 13 hours 8 minutes in December and 11 hours 7 minutes in June.
On 15 August, sunrise is about 06:35 and sunset about 18:07 local time. Both shift across the month — the month ends 24 minutes longer than it starts.
