Climate

Geography:
Along East, there are off-shoots of Parsik Hills running in North-South direction. The narrow belt of land between Thane Creek and the Parsik Hill range is about 2 kms in width. It starts at Digha in North and ends at Belapur in South. It is 2,560 hectares in area, 20 km long and about 2.0 km wide.

Geology:
The rock formations in the region are derived mainly from Deccan Basalt and also from Granites, Gneisses and Laterite. The gently sloping coastal lowlands are observed in patches and are covered with moderately shallow to deep soils, mostly lateritic in nature, sometimes Oxidised to yellow Murram. The soils of this region are highly saline in the vicinity of creeks and non-saline at other places.

Temperature:
The mean annual temperature ranges from 25°C to 28°C. The mean maximum temperature of the hottest month in this area varies from 30°C to 33°C in April-May while mean minimum temperature of coldest month varies from 16°C to 20°C. Extremes of temperatures, like 39°C in summer and l4°C in winter has been recorded.

Rainfall
Navi Mumbai experiences average annual rainfall from 2500-3000 mm which may extend to 5000 mm considering the catchment areas of hill ranges. The rainy season is mostly confined to South-West monsoon with 80 per cent of the rainfall received during June to October (60-70 days). Relative humidity varies from 41 to 97%.