Hot-Humid Weekend For Mumbai: Mercury May Reach 35 Degrees
Representational Image: AI-Skymet
Key Takeaways:
- Mumbai temperatures remain below normal so far in April
- Mercury to rise above 35°C over the weekend
- Weak sea breeze may drive hotter and more humid conditions
- No heatwave expected despite rising discomfort
The month of April has remained moderately warm for Mumbai so far. The day temperatures were normal or below normal. The maximum temperature hovered between 31°–32°C, which was below normal by a degree or two. The maximum temperature rose to 33°C yesterday, the highest so far this month, but still below normal by a whisker. A rise in mercury is likely around the weekend, triggering perspiring and sultry conditions.
The coastal city of Mumbai has a monthly average of about 33°C during March, April, and May. Even on the hottest days, the day temperature gets arrested below 40°C. Being a coastal station with perpetual moist westerly winds from the sea, it remains heavily humid. A heat wave starts as the temperature breaches the 37°C mark. Earlier, in the starting days of March this year, the city witnessed two rounds of heat wave conditions.
The day temperature of Mumbai is strictly dictated by the pattern of sea breeze. Over the last couple of days, there has been unrestricted sea breeze over the city and suburbs. The day temperatures were suppressed to figures in the low 30s. On days when there is land breeze in the morning and forenoon hours, the temperature keeps rising. At the time of onset of sea breeze, any further rise gets arrested. Occasionally, the temperature may even fall by a notch or so after the onset of sea breeze.
The wind pattern is likely to get altered over the Konkan region for the next 3–4 days. Two factors will contribute to this change. A cyclonic circulation in the lower levels over Rajasthan will arrest the free flow of westerly winds along the Konkan Coast. Also, a cyclonic circulation is likely to come up over parts of Madhya Maharashtra and Marathwada. A north-south trough is likely to extend from the circulation across the interiors of Maharashtra and further up to Kerala, keeping proximity to the lee side of the Western Ghats. This may obstruct the early onset of sea breeze. Resultantly, the day temperature may rise above 35°C over the coming weekend. Hot and humid weather conditions are expected to raise heat stress. However, heat wave conditions are unlikely during this period.
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