I have land in India (the tropics), in the hills, on a slope from 6800 feet - 5200 ft altitude (roughly). At that lowest point there's a stream of about 10-15m across. On one side is our land, on the other side, a steep thickly forested slope upwards. Generally my entire land is a very sunny area, high radiation, though not hot like the tropical plains (it rarely crosses 28C even in summer, usually hangs around 20-25C during the day. In Winter, it drops to a minimum of 7C, and hangs around 13-19C during the day).
This stream portion of my land is as yet unexplored and unused. I have rudimentary equipment to measure the microclimate (min-max thermometer, hygrometer), but I don't want to waste a year measuring things if possible.. so are there likely to be any appreciable microclimactic differences one can expect along a stream so small?