Climate averages 1991–2020
Arakkonam weather
in September.
A hot, wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Arakkonam: daytime highs average 33.2°C and nights cool to about 25.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 118 mm of rain on roughly 17 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.
The nearest other city in this atlas is Kanchipuram (28 km away). In September its highs average 33.3°C, about as warm as Arakkonam, with 120 mm of rain.
Among the 692 cities listed in India, Arakkonam ranks joint 55th of 692 for the warmest September highs and joint 215th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Arakkonam is 2.5°C warmer than that mean.
From September to October, average highs fall by 2.1°C to 31.1°C, and monthly rainfall rises from 118 mm to 174 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Arakkonam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C18.5°C | 18.5°C | 11 | 2.7 | 11.411 h |
| February | 31.6°C19.2°C | 19.2°C | 6.3 | 1.6 | 11.712 h |
| March | 34.8°C21.7°C | 21.7°C | 10 | 1.6 | 12.112 h |
| April | 36.8°C25.3°C | 25.3°C | 19 | 3.4 | 12.412 h |
| May | 38.3°C27.5°C | 27.5°C | 46 | 7.3 | 12.713 h |
| June | 36.1°C27.2°C | 27.2°C | 83 | 13.7 | 12.913 h |
| July | 34.7°C26.4°C | 26.4°C | 90 | 15.4 | 12.813 h |
| August | 33.8°C25.8°C | 25.8°C | 107 | 16.3 | 12.613 h |
| September, selected | 33.2°C25.1°C | 25.1°C | 118 | 16.9 | 12.212 h |
| October | 31.1°C23.6°C | 23.6°C | 174 | 18.5 | 11.812 h |
| November | 28.8°C21.8°C | 21.8°C | 152 | 15.4 | 11.512 h |
| December | 27.7°C19.9°C | 19.9°C | 81 | 7.7 | 11.411 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Kanchipuram in SeptemberIndia · 28 kmHigh 33.3°C · Low 25.3°C · 120 mm rain
- Rānipet in SeptemberIndia · 41 kmHigh 33.2°C · Low 24.7°C · 135 mm rain
- Avadi in SeptemberIndia · 48 kmHigh 33.0°C · Low 25.6°C · 118 mm rain
- Maraimalainagar in SeptemberIndia · 50 kmHigh 32.7°C · Low 25.7°C · 121 mm rain
- Tambaram in SeptemberIndia · 53 kmHigh 32.7°C · Low 25.9°C · 102 mm rain
- Pallāvaram in SeptemberIndia · 54 kmHigh 32.4°C · Low 26.0°C · 102 mm rain
- Vellore in SeptemberIndia · 61 kmHigh 32.8°C · Low 24.4°C · 135 mm rain
- Chittoor in SeptemberIndia · 64 kmHigh 32.0°C · Low 23.7°C · 118 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Arakkonam) is explained once on the Arakkonam year overview and on the Sources, method and limits page.