The North Atlantic is experiencing an unusually calm start to September in the middle of the peak tropical cyclone season, which constitutes an abnormal situation for this time of year. Normally, September coincides with the peak of the tropical cyclone season in the North Atlantic, but this year activity has been surprisingly reduced.
The El Niño phenomenon may be contributing to this reduction in cyclonic activity in the Atlantic. El Niño makes it difficult for tropical cyclones to form and indirectly alters atmospheric circulation. This change in cyclone formation can have consequences that are felt remotely.
The effects of this situation may indirectly reach Portugal's weather. Although the connection is not direct, changes in atmospheric circulation caused by El Niño can influence the meteorological conditions that reach the country through the Atlantic.
September marks the beginning of the climatological autumn in Portugal, also coinciding with the period when the North Atlantic tropical cyclone season usually reaches its peak activity.
