Israel Braces for Warmer Autumn with Increased Rainfall

While the calendar marks September 1st as the start of autumn in Israel, the weather often lags, with warm temperatures persisting well into the month. However, early signs of change are emerging, with forecasts for Tel Aviv on October 1st predicting temperatures around 22-28 degrees Celsius, gradually returning to seasonal norms. Localized forecasts also suggest a possibility of light rain in the north and along the coast early in October.

Despite these shifts, a sharp drop in temperature is not expected. The Israeli Meteorological Service's seasonal forecast indicates that average October temperatures in 2026 will be 1-1.5 degrees Celsius above the long-term average in the north and up to 1.5-2 degrees higher in the southern Negev. This suggests an "Israeli autumn" characterized by warm days, humidity, and intermittent heatwaves.

Conversely, rainfall in October is predicted to exceed the long-term average, with most areas expected to receive 170-200% of the norm, and some southern regions potentially exceeding 200%. While this forecast does not pinpoint specific rain dates, it serves as a timely reminder for homeowners to prepare their properties for potential heavy downpours.

The article advises proactive home maintenance before the first significant rains. This includes checking air conditioning units by cleaning or replacing filters and ensuring proper condensate drainage, as recommended by ENERGY STAR. It also stresses the importance of clearing balcony drains, gutters, and other rainwater pathways of leaves and debris to prevent water from entering homes.

Furthermore, homeowners are urged to inspect windows, shutters, and seals for cracks or worn-out gaskets, particularly in older coastal properties susceptible to salt air and humidity damage. Checking for and addressing indoor humidity levels, aiming for 30-50% relative humidity as recommended by the EPA, is also crucial to prevent mold growth. Finally, the article suggests testing heating systems, whether dedicated heaters or air conditioners in heating mode, before the colder evenings arrive, emphasizing the need for a quick transition between heating and cooling in Israel's variable autumn climate.