Weather in Coimbatore in December

Prime time. If you get to pick your dates, December is the one. Highs average 28.8 °C, lows 18.2 °C, and rain falls on 5 days — nothing in the month is working against you.

December is the highest-scoring month of the twelve. The nearest rival is January, and the month at the other end of the year is May.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 28.8 °C days and 18.2 °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: 8 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest December day reached 34.1 °C and the coldest night fell to 13 °C, and the wettest single day dropped 35 mm — roughly 125% of the month's rain in one day.

This is the volatile part. December rainfall has ranged from 2 mm to 74 mm across the twenty years measured — a 72 mm spread around an average of 28 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 6.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 79%, high enough to notice on the warm days without dominating them.

How December sits in the year

Temperatures hold steady either side: 28.2 °C in November, 28.8 here, 31.3 in January. Nothing about the timing within the month matters much. Rain has already shifted: 11 days fewer than November had.

Daylight in December

Coimbatore sits close enough to the equator that daylight barely moves all year — 11.5 hours in December, against a range of just 1.3 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 18.9 °C between the year's warmest afternoons and coldest nights.

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 Coimbatore versus nearby

If Coimbatore is one option among several, the nearby comparison is worth making. Tiruppur is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Munnar is close enough to be a coin toss — 7.8 °C cooler, 1 day more rain.

So: December is the answer for Coimbatore. If it is booked out or priced out, January is the next best thing at 4 points behind, and May is the month to keep off the shortlist.

Every month in Coimbatore

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