The in-form striker joins up to begin his preparations for this summer’s UEFA European Championship Finals after being given a week off following the end of his season with Spurs.
And, added to Saido Berahino and Danny Ings to form the squad’s strike-force, Southgate is pleased to welcome him back.
England v Belarus
A Vauxhall International
7.45pm, Thursday 11 June 2015
Oakwell, Barnsley FC
Live on BT Sport
Call 0871 2266777 for tickets
"He’s joining up today, after Calum [Chambers] and Ruben [Loftus-Cheek] met up on Monday," said Southgate.
"He’s the last one to join us, as I gave them all a week off after they’d finished with their clubs.
"We need to look exactly where he is [fitness-wise] and what we do over the next couple of days to get him ready.
"Some of the other players needed minutes when we played Ireland last week, which was a good work out as some hadn’t played since 2 May.
"But Harry’s not in that situation, he doesn’t need the minutes, so we have to think about what’s right to get him ready for the next couple of weeks."
Along with Berahino and Ings, who also had impressive campaigns in the top-flight, Southgate is confident there won’t be any shortage of goals in his team.
And after playing with the likes of Alan Shearer, Ian Wright, Teddy Sheringham amongst others in his career, Southgate believes he’s seen enough from the trio to know they can cause problems at the highest level.
"We’ve got three strikers in confidence," he said.
"It’s quite unusual in that the three boys here have all performed extremely well in the Premier League.
"So we are very fortunate to have strikers with that ability to score goals but also the work ethic and desire to be the best they can be.
"They’re team players, I’ve played with a few goalscorers who were just about scoring goals but these three are different, so they’re a pleasure to work with."
Ings, Berahino and Kane will all be hoping to lead the line on Thursday when England face Belarus in their final Euro warm-up.
The game takes place at Oakwell in Barnsley and tickets are on sale now, priced at £10 for adults and £5 for concessions. Click here to buy tickets online.