Despite the fact that the Iberian Peninsula is almost completely surrounded by the sea, in the central part of it the influence of water masses on climatic conditions is coming to naught. Mountain ranges, stretching practically along the entire coastline, protect the inner part of the peninsula from external influences. Almost throughout Spain (with the exception of mountain regions), the average monthly temperature is positive. The coldest period is from December to February, the warmest is from June to September.
In general, the country is dominated by a subtropical climate of the Mediterranean type, although in its pure form it can be ascertained only on the south-eastern coast of Spain (Andalusia and Extremadura). On all coast of Mediterranean sea soft and short winter and a dry and hot summer. On the east coast of the country in the period from December to February the average minimum air temperature is +5: +8, the average maximum is +12: +17. In the period from June to September the average minimum temperature is +16: +21, the average maximum +25: +30.