Ocean Currents Effecting Temperature?

Actually, your wrong, it has nothing to do with ocean currents. It has to do with the Earth being tilted on it's axis. The Eraths tilt never changes, so when it's on one hlaf of it's revolution, the southern hemisphere will be tilted towards the sun. And when the Earth is at the other half of it's revolution around the sun, the northen hemisphere will be tilted towards the sun. This causes less daylight hours in winter because the sun doesn't shine on the hemisphere having winter during that time as long, which also means there's less insulation happening, causeing the temperature to be cooler. Ocean currents do have to with temperature though. An example would be, the cooling currents from the Gulf of Mexico go towards England, and keep it a mild temperature year round.