Sydney in August
In August, Sydney averages 18°C (64°F) during the day and 9°C (48°F) at night, with around 9 days of rain (81 mm total).
High seasonConditions are comfortable for sightseeing without being sweltering. Occasional showers are likely but won't dominate.
August is a great month to visit Sydney: pleasant temperatures and relatively few wet days.
How August compares to the rest of the year in Sydney
August is one of the coolest months in Sydney (10th of 12) and one of the driest months (11th of 12). Daytime temperature runs 4°C below the annual average (22°C). August runs 1°C warmer than July (17°C) and warms a further 2°C into September (20°C).
August sunrise & sunset in Sydney
Times shown for Sydney local time (Australia/Sydney), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Sydney — August
Golden-hour and blue-hour windows for the 15th of August, in Sydney's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Sydney in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (High season) and Sydney's popularity.
Crowds & pricing — August in Sydney
This is a busy month in Sydney — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — August in Sydney
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Sydney — August
Across the year Sydney's sea swings from 17.7°C (July) to 23.4°C (February) — August sits at 17.7°C.
Sydney in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 26°C / 79°F | 19°C / 66°F | 102 mm | 11 | — |
| February | 26°C / 79°F | 19°C / 66°F | 117 mm | 11 | — |
| March | 25°C / 77°F | 17°C / 63°F | 130 mm | 12 | — |
| April | 22°C / 72°F | 14°C / 57°F | 127 mm | 11 | — |
| May | 19°C / 66°F | 11°C / 52°F | 121 mm | 11 | — |
| June | 17°C / 63°F | 9°C / 48°F | 131 mm | 11 | — |
| July | 17°C / 63°F | 8°C / 46°F | 98 mm | 9 | — |
| August | 18°C / 64°F | 9°C / 48°F | 81 mm | 9 | — |
| September | 20°C / 68°F | 11°C / 52°F | 69 mm | 9 | — |
| October | 22°C / 72°F | 13°C / 55°F | 77 mm | 10 | — |
| November | 24°C / 75°F | 16°C / 61°F | 84 mm | 10 | — |
| December | 25°C / 77°F | 18°C / 64°F | 78 mm | 11 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Sydney in August →
Frequently asked questions
How hot is Sydney in August?
In August, Sydney averages a high of 18°C (64°F) and a low of 9°C (48°F) — generally mild and pleasant.
Does it rain a lot in Sydney in August?
August sees occasional rain in Sydney, with about 9 rainy days on average.
Is August a good time to visit Sydney?
August is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Sydney in August?
Pack light layers for warm days and cooler evenings. See the full August packing list for Sydney for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.