SF Prep Notes

IMD forecasts above-normal monsoon at 106% of LPA in updated 2025 forecast

The India Meteorological Department on 27 May 2025 forecast 2025 southwest monsoon rainfall (June–September) at 106% of the Long Period Average with a model error of ±4%, indicating above-normal rainfall.

Summary

The India Meteorological Department (IMD) issued its updated Long-Range Forecast for the 2025 southwest monsoon on 27 May 2025. Seasonal rainfall for the country as a whole is likely to be 106% of the Long Period Average (LPA), with a model error of ±4%, indicating a high probability of above-normal rainfall. Rainfall is most likely to be above normal over Central India and the South Peninsula, normal over Northwest India (92–108% of LPA) and below normal over Northeast India (below 94% of LPA). The Monsoon Core Zone, covering much of India's rainfed farmland, is also forecast to get above-normal rain.

Key facts

Issued
27 May 2025, IMD (Ministry of Earth Sciences)
Season
June–September 2025
All-India forecast
106% of LPA, model error ±4% (above normal)
Above normal
Central India, South Peninsula, Monsoon Core Zone
Normal
Northwest India (92–108% of LPA)
Below normal
Northeast India (<94% of LPA)

Practice MCQs 3 questions

Q1

In its updated forecast of May 2025, what did IMD forecast for the 2025 southwest monsoon seasonal rainfall over the country as a whole?

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Correct answer: C — 106% of LPA

IMD forecast 106% of the Long Period Average with a model error of ±4%.

Q2 Advanced

According to IMD's updated 2025 monsoon forecast, which region is likely to receive below-normal rainfall?

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Correct answer: A — Northeast India

Northeast India is likely to get below-normal rain (<94% of LPA); Central India and the South Peninsula above normal; Northwest India normal.

Q3 Advanced

Consider the following statements about IMD's updated 2025 southwest monsoon forecast: 1. The Monsoon Core Zone is forecast to receive above-normal rainfall. 2. Northwest India is expected to receive normal rainfall in the range of 92–108% of LPA. Which of the statements given above is/are correct?

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Correct answer: C — Both 1 and 2

Both are correct: the Monsoon Core Zone is forecast above normal and Northwest India normal (92–108% of LPA).

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