Poland has a transitional climate influenced by both maritime and continental air masses due to its central European location. The climate varies regionally, with cloudier conditions in northern lake districts and mountainous areas, and sunnier weather in the lowlands. Precipitation is highest in western mountain slopes and lowest in eastern regions, while the most snow falls in the mountains. Winds are predominantly westerly in summer and easterly in winter. Temperature varies significantly by region as well, with the warmest area being the Silesian Lowland and coldest Suwalszczyzna in the northeast.