Yes, there are multiple flights from Ioannis Kapodistrias to Dubai International for under AED 2,571. The cheapest flight booked recently is on Multiple Airlines for just AED 2,240, but on average you can expect to pay AED 2,865.
There are no direct flights from Ioannis Kapodistrias to Dubai International, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Expected rainfall in Corfu is less than in Dubai. You can expect this to be the case over the next 13 days.
You can imagine temperatures to be in the 41 °C range in July. The weather in Dubai is generally hotter than Corfu's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.