In Jainism, Chaturmas (Chomasa) refers to a four-month period of increased spiritual activity, fasting, and staying in one place, traditionally observed during the Indian monsoon season. The primary reason for this tradition is to avoid harm to countless tiny living beings that flourish during the rains, as well as to provide an opportunity for greater spiritual practices.

Regarding Chaturmas in places like Dubai (or other countries without a typical monsoon season):

• The observance of Chaturmas is not strictly dependent on local rainfall but rather on the lunar calendar, specifically from Ashadha Shukla Ekadashi (around June-July) to Kartika Shukla Ekadashi (around October-November).
• Jains living outside India, including in Dubai and other countries without monsoon rains, still observe Chaturmas according to the traditional Jain calendar.
• The spiritual significance—such as avoiding travel, increased sadhana, and vows—is maintained, regardless of the local weather conditions.

In summary: Yes, Chaturmas is counted and observed by Jains in Dubai and across the world, even if there is no rain, because its observance is based on the Jain lunar calendar and spiritual principles, not solely on the presence of monsoon rains.