Weather in Alappuzha in December

A good month. December works. It is not the peak, but nothing about it fights you. Highs average 29.6 °C, lows 25.9 °C, and rain falls on 7 days — nothing in the month is working against you.

December ranks 2 of 12 in Alappuzha. Only January scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29.6 °C days and 25.9 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 11 days top 30 °C — hot spells arrive, but they break; the day barely swings — 3.6 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest December day reached 32.3 °C and the coldest night fell to 22.9 °C, and the wettest single day dropped 76 mm — roughly 162% of the month's rain in one day.

This is the volatile part. December rainfall has ranged from 1 mm to 150 mm across the twenty years measured — a 149 mm spread around an average of 47 mm. The average is real but almost no individual December looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 7.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 70%.

How December sits in the year

Temperatures hold steady either side: 29.1 °C in November, 29.6 here, 30 in January. Nothing about the timing within the month matters much. Rain is the thing that moves: January brings 5 days less of it, so pushing the dates later buys drier weather.

Daylight in December

Alappuzha sits close enough to the equator that daylight barely moves all year — 11.6 hours in December, against a range of just 1.1 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 28.8 °C in December — warm enough that the water offers no relief from the heat. The sea peaks at 30.2 °C in April and bottoms out at 27.2 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

December in Alappuzha versus nearby

If Alappuzha is one option among several, the nearby comparison is worth making. Munnar is a better bet in December — 8.6 °C cooler, 1 day less rain. Teni is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: December works, with January the better month by 7 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Alappuzha

See all twelve months in Alappuzha, or where else to go in December.