In a sudden surge, rainfall has gone up from 4 per cent below average in the week ending Sunday (August 18) to 26 per cent above average. This week-to-week increase in average rainfall was a result of rain mainly lashing eastern India.
The monsoon is expected to remain active and above average next week too over eastern India and adjoining central parts.
As per predictions, total rainfall is likely to be at least 10 per cent above average across the country for the full period. Rains are here to stay in Delhi as well with light/ moderate intermittent showers predicted at least till the end of this month.
According to sources in Indian Meteorological Department (IMD), rain may, however, ease in September, even then the country as a whole is likely to end up with an excess over at least 5 per cent-10 per cent of average rain this year.
As per Indian Meteorological Department figures, the country has already received 728.8 mm of rain, which is 14 per cent above the average. Nearly 87per cent area of the country has received excess/normal rainfall so far this season.
Explaining this sudden burst of monsoon this month, IMD experts said this was because of regular development of low pressure systems over northwest Bay of Bengal and its movement across the country.
Due to oscillation of the monsoon trough from south to north, Northwest India, including Delhi, is also likely to see light to moderate rain till the next few days.
The weather officials added that an upper air cyclonic circulation would develop over northwest Bay of Bengal around August 27.
As a result, rain/thundershowers would occur at many places along west coast and North-Eastern States on many days of the week with slight increase in intensity during the second half. This spell is likely to extend over east Rajasthan, Gujarat region, Madhya Pradesh and the adjoining regions during the next few days.
Even the eastern States -- Jharkhand and Bihar, which had begun with rain lesser than its average during the season -- have also picked up. IMD has predicted heavy rainfall in parts of West-Bengal, Odisha and parts of Jharkhand till early next week. The adjoining central parts of the country will also be affected as a result.
As per figures from IMD, the eastern and North-Eastern part of the country has narrowed its monsoon deficit from the earlier 32 per cent to 30 per cent. There are predictions of rainfall in the States of Assam, Sikkim and Meghalaya, next week.
The figures from IMD further indicate that Central India continues to lead with 33 per cent above average rains this season with 941.2 mm. North-west India has received 568.2 mm which is 28 per cent above average.