KATHMANDU: Nepal is beginning to experience a gradual shift in its weather pattern as the southwest monsoon approaches its seasonal withdrawal, with the influence of westerly winds now becoming noticeable in the western parts of the country.
According to the Weather Forecasting Division under the Department of Hydrology and Meteorology, the partial influence of westerly winds has started in western Nepal since September 17.
The Division said the westerly winds are currently affecting parts of Sudurpashchim and Karnali provinces, alongside the remaining influence of the monsoon winds.
Now, the monsoon winds will gradually withdraw while the influence of the westerly winds will increase, according to the Division, and as this transition progresses, temperatures will also gradually decrease.
The changing wind pattern has already brought some variation in temperatures across the country. According to the Division, temperatures have declined slightly in some areas, although conditions remain relatively unchanged in other parts of Nepal.
Nepal’s average date for the withdrawal of the monsoon is October 2. With the country now approaching that period, the monsoon is expected to gradually weaken in the coming days. However, October 2 is only the long-term average date, and the actual withdrawal can occur several days earlier or later depending on prevailing atmospheric conditions.
The transition from monsoon to post-monsoon conditions generally brings a gradual change in Nepal’s weather, including reduced monsoon activity and cooler temperatures in many areas. Post-monsoon conditions begin once the monsoon has fully withdrawn from the country.
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