Nea Smyrni's weather is mild and temperate, with warm summers and cool winters. Spring arrives in April with temperatures rising rapidly, often reaching up to 28°C, while autumn brings a gentle decline, with September being the warmest month of the season. Winters are chilly but not freezing, with January averaging around 10°C, and summers are hot, especially July and August, when temperatures can soar above 40°C. The temperature range is relatively narrow throughout the year, with only a few degrees difference between the coldest and warmest months. Overall, Nea Smyrni's climate is characterized by moderate temperatures and low seasonal extremes.