Hi there, thanks for writing to us on AskGuru.
Unfortunately, the minimum rental period for an HDB flat and private property are 3 and 6 months respectively.
A better option is to rent a serviced apartment.
You may refer to our listings here for a range of serviced apartments that suit your budget: https://www.propertyguru.com.sg/search/serviced-apartments/property-listings
Hope this answers your question.