Simplify the formula. You now know enough to find the surface area of any rectangular prism. You can do it faster if you've learned some basic algebra. Start with our equation above: Area of a rectangular prism = lw + lw + wh + wh + lh + lh.
Check the Weather in Perissa, Santorini in September before you book your next holiday. This gives the best indication of the weather in September and includes figures for temperature, sunshine and rainfall. 1  25Â°C max day temperature.
Weather lowdown. October is a great time of year to visit Santorini, Greece, when the weather is superb and the island is relatively quiet. During this month, the temperatures are pleasantly mild, as is the average sea temperature which retains the heat from summer.