CLIMATE: Ensenada and Rosarito Beach's climate is best described as "Mediterranean". It is very similar to San Diego, and people there think it is just about perfect. Temperatures rarely go above 85 degrees F., or below 50 degrees F., year round. The cool pacific waters moderate temperatures here along the Baja Gold Coast, but go inland a few miles and temperatures can climb quite high in the Summer.     Summary of monthly average temperature and precipitation. Month: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec High Temp. 66 68 68 70 72 73 75 77 77 75 72 66 Low Temp. 48 50 50 55 57 59 63 66 63 57 54 50 Precipitation 1.9 1.5 1.5 0.8 0.2 0 0 0 0.1 0.3 1.2 1.7