Tamil Nadu · India
Chennai in December
In December, Chennai averages a daytime high of 30 °C and a night-time low of 22 °C, with about 135 mm of rain over the month. Chennai has no month that is both mild and dry by the measure used here.
- Average high
- 30 °C
- Average low
- 22 °C
- Rain in the month
- 135 mm
- Daylight on 15 Dec
- 11 h 20 min
- Comfortable month
- No
- Places to stay
- 491
When to go
How December compares with the rest of the year in Chennai
December is tied for the coolest month in Chennai by average daytime high; across the year the highs run from 30 °C to 39 °C and the lows from 20 °C to 28 °C. By day, December is 1 °C cooler than November, and January is 1 °C warmer than December.
December brings 135 mm of rain, more than the monthly average of 107 mm (1281 mm a year); it is the 4th wettest month.
On 15 December the sun is up for about 11 h 20 min, against 11 h 20 min at the shortest and 12 h 50 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 30 °C | 20 °C | 16 mm | |
| February | 32 °C | 21 °C | 11 mm | |
| March | 34 °C | 23 °C | 3 mm | |
| April | 36 °C | 26 °C | 11 mm | |
| May | 39 °C | 28 °C | 41 mm | |
| June | 38 °C | 28 °C | 72 mm | |
| July | 36 °C | 27 °C | 104 mm | |
| August | 35 °C | 26 °C | 147 mm | |
| September | 35 °C | 26 °C | 133 mm | |
| October | 33 °C | 25 °C | 287 mm | |
| November | 30 °C | 23 °C | 320 mm | |
| December | 30 °C | 22 °C | 135 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is December a good time to visit Chennai?
Not by the measure used here: the average high of 30 °C is above 29 °C and about 135 mm of rain is 80 mm or more. No month in Chennai meets it.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in India in December
Nationwide public holidays; shops and offices may close on these dates.
When to go
Destinations near Chennai that are comfortable in December
Within 300 km, nearest first, by the same measure.
Where to stay
Where to stay in Chennai
This guide lists 491 places to stay in Chennai, hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 17; 1–3 km, 59; 3–10 km, 180; 10 km or more, 235.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from python-holidays (MIT); places to stay from each operator's own public pages and Wikidata. How this guide is made.