The Arabica coffee plant will grow in hotter areas but is not well suited for higher temperature. The Robusta coffee plant is typically located in hotter and more humid areas at lower altitudes around 600 to 1500 feet. Frost will kill every variety of coffee plant known. Thus, it limits the altitude and latitude at which this plant can thrive. The coffee plant is susceptible to changes in temperature.
Temperature affects the color of the coffee leaf, the hotter the lighter the color green.
The longer periods of deep green, the healthier the coffee plant. Generally, the coffee growing area takes at least 75 inches of rain fall per year. The rainfall should be spread over a 9 month period, with about 2-3 months of only a few inches of rain. The dry spell is needed to allow coffee buds, flowering, and new growth. Erosion aside, the coffee plant will grow well with much more water so long as it does not sit in water.