Koh Samui - July

I will be in Koh Samui in July. Will it be difficult to find accomodations in Chaweng Beach area without a reservation at this time of the year.

No, not difficult, but not cheap anymore .

Many bungalows available in rainy season, but 1000+ is now the standard rate for something decent.

'Many bungalows available in rainy season'
Yes, but July is not rainy season in Samui.
Rainy Season starts Sept/Oct./Nov. Sometimes end of August.