Sunshine Coast beaches will be packed for the remainder of the school holidays and heatwave conditions set to reach new peaks by Thursday.
Sunshine Coast beaches will be packed for the remainder of the school holidays and heatwave conditions set to reach new peaks by Thursday. John McCutcheon

New heatwave about to hit Coast as weather records tumble

RECORD-breaking temperatures, strong winds and not a hint of rain are set for this week to see off one of the driest Septembers on record for the Sunshine Coast.

How hot coastal areas get this week will be dependent on the strength and timing of sea breezes, however Bureau of Meteorology forecaster Adam Blazak said there was no doubt there would be no rain through to the end of the month.

Coastal areas of the Sunshine Coast are expected to hit 35 degrees on Thursday and 33 degrees on Friday and Saturday, while further inland Nambour - which will reach 32 degrees today - can expect to reach 37 degrees on Thursday and then stay at 36 for both Friday and Saturday.

Further north at Gympie it will get to 38 degrees on Friday after reaching 37 on Thursday, before a day time maximum of 37 degrees on Saturday.

Mr Blazak said an upper level ridge with warm air in the upper atmosphere was pushing warm air down to surface level, conditions he said were the exact opposite to those that would produce rainfall.

The system, he said, would remain in place for the entire week.

Compounding that north-westerlies were dragging hot air from inland into south-east Queensland.

A line of temperature demarcation is expected to be drawn, dependent on the strength of the sea breeze and how early in the day it kicks in.

An example of that came yesterday as Brisbane peaked at 30 degrees due to the cooling effect of the sea breeze while Ipswich sweltered in 38 degree heat.

Gatton reached its warmest September temperature yesterday while Urandangi and Toowoomba have both experienced their warmest September night on record.

The forecast of dry weather to the end of the month means that since the end of May the Sunshine Coast will have received only 60mm over four months compared with the average 317.8mm expected for the period.

Mr Blazak said there remained no clear indication of what the next three months would hold, with the climate outlook in neutral making rainfall forecasts difficult.

Forecasters are looking for stronger indicators than they are seeing to date before firming on what is likely.

It would be a coolish 27 degrees on the coast tomorrow on a partly cloudy day with light winds early increasing to 15-25kmh from the east north-east before swinging north north-east to 20kmh.

A hot, sunny Thursday with northerlies to 25kmh before swinging north-west at 25-40kmh shapes as the week's hottest day along the coastal strip and potentially also the day of highest fire threat.

While it will be 35 degrees on the coast, Nambour is expected to climb to 37 degrees.

The west north-westerlies will continue into Friday at a weaker 20kmh before swinging north-west to south-west in the evening.

Winds will remain from the south south-west through the weekend with temperatures falling away to a 28 degree maximum on Sunday after peaking at 33 degrees on Saturday.