Swietochlowice's winters are typically cold and unpredictable, with temperatures fluctuating between -6°C and 8°C on average around 2°C. Spring is a slow warming period, with March being particularly chilly, averaging just 1°C, while April and May gradually bring warmer days, peaking at an average of 11°C in May. Summers are mild to warm, with July and August temperatures hovering around 20°C, though still reaching highs of up to 30°C. Autumn brings a more gradual decline, with September being the warmest month at 15°C on average, before cooling down to around 5°C in November. Winters return with December averaging near-freezing temperatures between -12°C and 12°C.