Saku's winters are cold and unpredictable, with temperatures fluctuating between freezing lows of -12°C in January and mild highs of 16°C. The city's spring is marked by gradual warming, with March experiencing the first significant rise in temperature, averaging around 7°C. Summer brings warmth, with July and August often seeing temperatures soar above 30°C, peaking at 36°C. Autumn is characterized by a return to cooler temperatures, with October experiencing a slight drop before November's chill sets in. The year's coldest months are December and January, while the warmest are June, July, and August.