* Pound falls to $1.2558, 89.77 pence per euro
* Traders prepare for labour market data on Tuesday
* Graphic: World FX rates in 2019 tmsnrt.rs/2egbfVh
* Graphic: Trade-weighted sterling since Brexit vote tmsnrt.rs/2hwV9Hv
LONDON, July 15 (Reuters) - The British pound fell back towards six month lows against the dollar and the euro on Monday, with sterling traders still nervous about a loss of momentum in the UK economy, the prospect of an interest rate cut and a new prime minister.
Sterling recovered slightly at the end of last week, ending a nine week losing streak against the euro and inching away from the low of $1.2439 hit at the end of June.
However, analysts are largely bearish on the currency after a run of poor economic data and signals from the Bank of England that its next move may be to cut interest rates rather than hike them, as it had previously flagged.
On Tuesday, employment and wage growth data for the month of May will show how the British labour market is holding up. Many economists expect the UK economy will have contracted in the second quarter.
Investors are also waiting for the outcome of the Conservative party leadership contest to replace Prime Minister Theresa May. Eurosceptic Boris Johnson is the favourite to win against Jeremy Hunt in a vote of Conservative party members. The winner will be crowned leader - and prime minister - by the end of July.
Nomura FX strategist Jordan Rochester said the bank’s analysts had concluded that sterling was “in the value zone for now, vols are cheap and a lot of bad news is priced in but that’s just for the next six weeks or so.
“In September, hard Brexit risks will once again be priced in by markets,” he wrote in a research note.
Britain is scheduled to leave the European Union on Oct. 31.
David Madden, analyst at CMC Markets, noted that on a technical basis, sterling/dollar “has been driving lower since mid-March, and if the bearish move continues it might encounter support at $1.2365 region.”
The pound weakened 0.2% to $1.2556 by 0830 GMT, while against the euro it declined 0.2% to 89.785.
Sterling had hit a six-month low of 90.10 pence per euro last week. (Reporting by Tommy Wilkes; Editing by Jon Boyle)