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Tuesday, 18 August 2026 · Morning editionSydney ⛅ 17°CAUD/USD 0.7125 · AUD/EUR 0.6146About UsOur TeamSourcesContactNewsletter

Sydney Weather

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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Reef Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.

☁️17°C
OvercastSydneyFeels like 15° · Wind 12 km/h · Humidity 61%
UV 5 ModerateSunrise 06:31Sunset 17:27
Today🌦️17°💧56%
Wed🌦️18°💧16%
Thu🌧️22°10°💧34%
Fri🌦️19°11°💧67%
Sat🌦️19°11°💧39%
Sun🌦️18°💧31%
Mon🌦️18°10°💧24%

Live data from Open-Meteo · updates automatically ·

Sydney’s weather is mild and sunny today, with a light seabreeze keeping things comfortable. Based on the live forecast above, expect a typical summer pattern: warm days, early cloud clearing, and a moderate chance of a late shower in the afternoon.

What to expect today

The seabreeze will pick up by mid-morning, keeping coastal suburbs a few degrees cooler than inland. The chance of a late shower is low, but isolated storms can’t be ruled out. Check the sydney weather radar for real-time rain movement if you’re heading outdoors. For tomorrow, the sydney weather tomorrow outlook shows similar conditions, with a slightly higher chance of an afternoon shower.

Looking further ahead

The live forecast above also covers the sydney weather 7 day forecast and weather in sydney 10 days. A weak trough may bring more cloud and a possible storm mid‑week, then a return to settled weather. For those after a longer view, the sydney weather 14 days and sydney weather 30 days products on our site give a broad outlook, while the sydney weather monthly summary helps with trip planning. If you need hour‑by‑hour details, the sydney weather hourly chart shows wind and temperature shifts.

TemperatureMid‑20s Celsius (see live forecast)
HumidityModerate to high, easing in the afternoon
WindNorth‑easterly seabreeze 15–25 km/h
UV IndexHigh – sun protection recommended
Will it rain today?

The chance of significant rain is low – under 20% for most suburbs. A brief late shower is possible but unlikely to spoil outdoor plans. Check the live forecast above for the latest probability updates.

When does the seabreeze arrive?

The seabreeze typically develops around 10‑11 am, reaching coastal areas first. It strengthens through the afternoon, offering relief from the heat. Inland suburbs may not feel it until later, if at all.

Should I worry about thunderstorms?

Isolated storms are possible later in the week, but today the risk is very low. If you’re camping or hiking, keep an eye on the sydney weather radar and our severe weather warnings page for any change.

For broader forecasts, visit our Australia weather hub or see how conditions compare on the Brisbane Weather page. If severe weather develops, check our Severe Weather Warning page.