One-eighth acre (50 ft x 100 ft with 50 cannabis plants) would use 24,000 gallons per season (8 months = 240 days) to produce 50 two-pound plants (2 gal per day x 240 days x 50 plants) or 480 gallons per plant. A two pound plant divided into 1/8ths of an ounce yields 256 eighths.
Rhodes: Weather forecast in October. As expected with a Mediterranean island, Rhodes enjoys very lovely October weather at the height of an Indian summer. The temperature only drops to around 15 degrees Celsius during the nights, while the days still reach a comfortably warm 25 degrees, even right at the end of the month.
Visiting and Travel in Greece. The weather in late Oct / early Nov is usually warm but you'll have about 1/3 rainy days. There is nothing special going on, apart from a national holiday (28th of October) and it being the olive harvest season (perhaps you will be interested if you are into agrotourism). If you want to come to the beach, come in September, because you 'll find the warmest waters, not very hot weather and empty beaches.