(Adds updated records, Polish central banker comment)
PRAGUE, July 14 (Reuters) - The Czech crown and Polish zloty inched up to new highs on Monday, extending record gains over the past month that have spread to other regional currencies helped by interest rate hike expectations.
The crown <EURCXZK=> hit a record 23.280 against the euro, up from 23.425 at Friday's close.
The zloty <EURPLN=> firmed to a new high of 3.2540 to the euro in the afternoon before pulling back to 3.2565 after the central bank said it would not intervene to slow the currency's appreciation. The zloty closed at 3.258 per euro on Friday.
"It's a continuation of the trend from the past few weeks where we've seen strong outperformance from regional currencies," said Martin Blum, head of emerging macroeconomic research at Unicredit in Vienna.
The region's currencies have firmed in the past month to record highs as risk averse investors sought alternatives to usual high-return investments and the market bet central banks would further combat inflation with interest rate hikes.
Blum said the region has been boosted by investors shifting positions from what are perceived as more risky Asian assets.
"It's an ongoing reallocation," he said.
STAYING CLEAR
Central bankers have become increasingly concerned with the impact of currency strength on economies that are already slowing due to lower demand from western trade partners.
However, that strength has also helped combat price growth, bringing about prospects for a pause in rate tightening, and policymakers have stopped short of intervening in markets.
Poland's central bank Governor Slawomir Skrzypek said on Monday his bank did "not expect to intervene on the foreign exchange market".
The Czech currency has added 3.5 percent against the euro in the past four weeks and 11.4 percent since Jan. 1. The zloty has firmed 3.8 percent and 9.8 percent in the same periods.
The Slovak crown, which will be switched for euros on January 1, 2009, has also gained 9.9 percent since the start of the year, and traders say its steep appreciation has brought regional neighbours' prospects for euro zone entry more to the forefront, boosting investor interest.
"It is sort of a knee-jerk reaction," one trader with a London bank said.
Hungary's forint <EURHUF=> has done better that the Czech and Polish currencies, strengthening 6.3 percent in the past month and 9.2 percent for the year. It traded near an all-time high of 229.55 to the euro on Monday.
The Romanian leu <EURRON=> is up 2.4 percent in the past month. It was at 3.57 per euro on Monday, near its 2008 high.
Analysts say there are still a chance for further interest rate rises in the region due to demand-led inflationary pressures. Data in the past week from the Czech Republic, Slovakia, Hungary and Romania showed inflation in June was nearing predicted peak levels but likely to remain elevated.
"The strength of the currencies, if it persists, will have an impact," Societe Generale wrote in its weekly Emerging Weekly on Friday. "Does it mean that the rate hike cycle has come to an end in eastern Europe? We do not think so."
(Reporting by Jason Hovet and Dagmara Leszkowicz; Editing by Ian Jones)