For a city that is usually scrambling for umbrellas, battling traffic snarls, and posting dramatic rain videos by this time of the year, the relative lack of monsoon activity has left many residents wondering where the rain is.
The southwest monsoon weather system, that brings nearly 70 per cent of India's annual rainfall, has made progress across parts of the country, but its advance has slowed over Maharashtra.
While Mumbai has experienced a few pre-monsoon showers and cloudy spells, the sustained, city-soaking rain that signals the true arrival of the monsoon remains elusive.
Under normal circumstances, the southwest monsoon reaches Kerala around June 1 and arrives in Mumbai by June 11. This year, however, the journey northward has hit a speed bump.
According to the India Meteorological Department (IMD), the monsoon has already covered parts of Goa, South Konkan and southern Maharashtra. However, its advance further has slowed due to unfavourable atmospheric conditions.
One of the main reasons for this is the influence of the western disturbances—weather systems that originate over the Mediterranean region and move across northwestern India. These systems have interfered with the normal flow of moisture-laden monsoon winds, effectively slowing the monsoon's progress.
Think of it as traffic congestion in the atmosphere. The monsoon is moving, but not as smoothly or as quickly as we'd like.
As a result, rainfall over Mumbai and several parts of Maharashtra has remained below normal so far this month.
The delay is being closely watched because the monsoon is far more than a weather event. It is the lifeline for drinking water reservoirs, agriculture, and groundwater recharge across the state.
Mumbai depends on monsoon rains to replenish the lakes that supply water to the city. Farmers across Maharashtra, meanwhile, time their sowing activities around the arrival of the rains.
While parts of coastal Maharashtra have received some rainfall, several interior regions, including parts of Marathwada, continue to await more substantial showers.
The good news is that meteorologists are not talking about a failed monsoon, just a delayed one.
Weather experts expect conditions to gradually become more favourable over the coming days as monsoon winds strengthen over the Arabian Sea. Scattered showers and thunderstorms are likely to continue, but the widespread, persistent rainfall associated with the full monsoon onset may take a little longer to establish itself.
Current indications suggest Mumbai could see a more decisive monsoon arrival around the middle of June or shortly thereafter.
Monsoons are naturally variable, but what matters more is how rainfall performs over the season as a whole.
For now, Mumbai finds itself in an unusual waiting game even with the humidity, the clouds gathering, and the monsoon knocking on the door.
Mumbaikars may have to hold on to their umbrellas a little longer, say experts. The rains are coming. They're simply running late.
