Thunderstorms have rumbled their way across Sydney for the ninth consecutive day, with more thunder and lightning on the horizon throughout Monday morning and into the afternoon.

Sydneysiders can expect rising humidity in coming days, making the apparently endless summer seem a bit more uncomfortable.

Going to Sea World isn't a walk in the park for the animals kept in captivity, say campaigners.

They said it would never fill. Now it has spilled.

Federal Water Minister Keith Pitt says the government remains determined to build new dams in the Murray-Darling Basin, rejecting comments from a leading researcher that climate change would reduce the likelihood that they would fill. 

Spring's full bloom will be on show this week in ways that hay fever sufferers will be all too aware.

In a town regarded as one of the world's hottest, Marble Bar locals are still reminded to take care as the mercury hit 48 degrees Celsius on Monday.

Sydney will likely come close to notching its hottest day this late in the summer for 12 years - and there won't be much early relief.

After 16 years of observations, the world's new lightning capital has been named.

Unless you've been inside a 200kmh blast of wind it's hard to imagine the tremendous natural force behind it.

May and autumn will come close to being a record warm ones for Sydney, the state and the rest of Australia as the giant El Nino added a hot overlay to temperatures that are rising in the background here and in most parts of the world.

Unprecedented rain in Japan unleashed heavy floods that tore houses from their foundations, uprooted trees and forced thousands from their homes.

Sydney awoke to a frigid Saturday morning, with temperatures dipping to a brisk 7.3 degrees in the CBD at 7:15am.

Sydneysiders look set for a soggy commute to end the working week, as an intense low pressure system off the coast delivers widespread showers, wind and large and powerful surf conditions to the city.

Wild weather across the country has claimed three lives following three incidents of cars being swept away in flood waters.

On a sunny Friday morning grower David McIntyre packed his walnuts and set out from the tiny Victorian town of Stanley to plead with beer giant Asahi to stop buying the water from beneath him.

Temperatures in Canberra reached 38.5 degrees as the region's first heatwave of the year peaked on Wednesday.

A fierce blast of winter has prompted a severe weather warning for most of southern NSW, including Sydney.

Canberrans still wringing themselves out from the wettest June on record shouldn't put away their gumboots just yet.

Sydney is in for a hot few days but the mercury should ease back to milder conditions on Christmas Day.