BharatSangraha

Marava & Ramnad · Eastern Coastal Plains

Terrain and eco-zones

The driest belt in Tamil Nadu, taking 750–850 mm almost entirely from the northeast monsoon between October and December, with a hot dry stretch from March to June and a second dry season in the southwest monsoon when the Ghats take everything. It is directly exposed to Bay of Bengal cyclones with no delta and no forest to absorb them, which is the whole meaning of December 1964 here.

Landforms

Teri — deep red aeolian sand dunes, ancient, acidic and almost useless for cultivationChained kanmois, several thousand of them, each overflowing into the nextSalt pans and saline backwater flats behind the Ramanathapuram coastThe Gulf of Mannar chain of twenty-one low coral islands, from Mandapam to TuticorinAdam's Bridge — a forty-eight-kilometre line of shoals and sandbars running to MannarThe Rameswaram sand spit, ending at Dhanushkodi where the two seas meet

Rivers and waters

No perennial river — the region's defining hydrological factVaigai, arriving spent and seasonal at its tail endGundar, Vaippar and Pambar, which flow only after rainThe tank chains, which do the work a river does elsewhere

Through the year

SeasonMonthsTypicalWhat it is like
KodaiMarch–June30–40 °CTanks bottom out, salt pans work at capacity, and the vathal and karuvadu drying season runs on the terraces and the sand.
Dry southwestJune–September28–36 °CRain-shadow months with strong wind and almost no rainfall. Palmyra tapping and dried-fish trade fill the gap.
Northeast monsoon and cyclone seasonOctober–December24–32 °CThe year's rain and the year's risk arrive together. Every tank fills or the year is lost, and every serious storm in the region's memory has made landfall in these ten weeks.
Cool seasonJanuary–February22–31 °CBathing festivals at Rameswaram and Devipattinam, the chilli harvest, and the best month to walk through Chettinad.

Best time to visitDecember to February. Rameswaram is a pilgrimage town year-round and busiest at Thai Amavasai and Maha Shivaratri; Chettinad is best in the cool months, when the mansion courtyards are usable and the heritage houses are open.

The climate, landforms, rivers and seasons of Marava & Ramnad, and the best time of year to visit. (4)