WanderWhen

Chennai weather in December

December is a fair shoulder-season month in Chennai — decent conditions with some trade-offs. Expect highs around 28°C, lows near 23°C, and about 15 days with rain.

6.8 · Fairtravel score for December
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg high
28°C
Avg low
23°C
Rainfall
209 mm
Rain days
15
Sunshine
9.2 h/day
Daylight
11.2 h

What to pack for Chennai in December

  • light, breathable clothing
  • sun protection (hat, SPF 50)
  • a compact umbrella or rain shell — rain is frequent
  • expect humid, sticky conditions

Humidity averages 79%; max daily wind around 20 km/h.

How December compares

January: 8.9/10 JFebruary: 8.8/10 FMarch: 7.1/10 MApril: 5.4/10 AMay: 3.4/10 MJune: 2.2/10 JJuly: 2.0/10 JAugust: 2.2/10 ASeptember: 2.6/10 SOctober: 3.9/10 ONovember: 5.3/10 NDecember: 6.8/10 D

Best months in Chennai: January–February. See the full best time to visit Chennai guide.

Chennai in December: the details

In December, Chennai sees average daytime highs of 28°C (82°F) and overnight lows of 23°C (74°F). Rainfall totals roughly 209 mm across 15 rainy days, and the sun shines about 9.2 hours per day with 11.2 hours of daylight mid-month. Relative humidity averages 79%.

These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Chennai, India (13.09, 80.28) — see our methodology. Actual conditions vary year to year.

Where should you go next month?

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