Update Date | 1‑10‑2026
WASM— High risk of flash floods in northwest Syria and Lebanon on Thursday and Friday, with increasing autumnal chill especially during the night and early morning. Temperatures will rise in the middle and end of next week, returning to typical autumn levels, but weather instability will continue. (Detailed forecast for each country and region in this report).
Temperatures drop below 40°C in many areas of Saudi Arabia, the Arabian Peninsula, Kuwait, the Arabian Gulf, and Iraq by the end of the week, with weather fluctuations over northwest Saudi Arabia, Al‑Jouf, Tabuk, and the highlands.
Weather instability intensifies over northwest Saudi Arabia and the Levant next week.
The detailed seasonal weather bulletin for the Arab region for 2026–2027 has been issued.
Detailed Weather Forecast for Each Region
Saudi Arabia, the Arabian Gulf, and the Arabian Peninsula
The weather remains hot across the region, tending toward coolness late at night in northern areas. Humidity levels are high and uncomfortable along the coastal regions of Saudi Arabia, the UAE, Qatar, Bahrain, and Kuwait, with cloud cover and dust‑raising winds in exposed areas of Riyadh and the Eastern Province.
Thunderstorms will affect parts of Al‑Jouf and Tabuk as part of the first wave of weather instability in northwest Saudi Arabia. Rain showers continue over the highlands of Asir, Jazan, Al‑Baha, Taif, and parts of Makkah, including some areas of the Holy Capital, with thunderclouds extending toward the highlands of Al‑Madinah.
Temperatures fall below 40°C by the end of the week in many Gulf and Saudi regions for the first time after summer, signaling the onset of early autumn influences. Expected highs: Riyadh ~38°C, Kuwait ~36°C, Baghdad ~34°C.
Weather instability increases progressively this month, especially over northern and northwestern Saudi Arabia, indicating an early start to the autumn “Wasmi” weather systems, which will intensify significantly by mid‑next month and become more widespread and stronger.
The Levant
The Levant continues to be affected by a rare, quasi‑winter low‑pressure system, bringing heavy rainfall to northwest Syria and Lebanon. Mountain temperatures will be around 21–22°C during the day and 12°C at night, which is 5–7°C below seasonal averages, with noticeable chill at night and early morning.
Rain showers are expected in parts of Jordan and Palestine, generally light.
Jordan
Autumnal weather prevails, tending toward coolness overall and cold at night. Daytime temperatures in the mountains are in the low twenties, dropping below 12°C at night in mountains and open plains. Scattered clouds appear at varying altitudes, with generally light rain showers. Weather instability continues next week, especially mid‑week.
Syria
Syria is affected by a rainy low‑pressure system, with heavy rainfall especially in the northwest and northern regions, and high flash‑flood risk on Thursday and Friday. Rain showers extend to various areas amid cold, quasi‑winter nighttime conditions.
Weather systems and instability continue this month and intensify progressively, especially mid‑month, becoming more widespread and stronger.
Palestine
Autumnal weather with generally mild temperatures, cold nights in mountainous areas, and rain showers in various regions, especially coastal areas. Weather instability continues next week, particularly mid‑week.
Lebanon
A low‑pressure system brings heavy rainfall, especially to coastal and mountainous regions, with high flash‑flood risk on Thursday and Friday. Temperatures drop noticeably, and colder autumn conditions intensify, especially at night.
Rainy weather systems continue next week and throughout the current month, intensifying progressively.
Iraq
Generally hot weather, with a noticeable temperature drop by the end of the week as autumn air masses begin to influence the region. Temperatures fall below 40°C in many areas during the day, with mild to cool nighttime conditions in some regions.
Weather instability is expected to begin with thunderstorm showers in parts of western Iraq, intensifying around mid‑month.
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