Climate averages 1991–2020
Mayiladuthurai weather
in September.
A hot, moderately wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Mayiladuthurai: daytime highs average 32.5°C and nights cool to about 26.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 72 mm of rain on roughly 14 days, which makes September a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is Kāraikāl (28 km away). In September its highs average 31.8°C, 0.7°C cooler than Mayiladuthurai, with 72 mm of rain.
Among the 692 cities listed in India, Mayiladuthurai ranks joint 95th of 692 for the warmest September highs and joint 49th of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Mayiladuthurai is 1.9°C warmer than that mean.
From September to October, average highs fall by 2.2°C to 30.4°C, and monthly rainfall rises from 72 mm to 200 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
Mayiladuthurai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.1°C22.6°C | 22.6°C | 34 | 5.8 | 11.612 h |
| February | 28.8°C23.1°C | 23.1°C | 16 | 3.2 | 11.812 h |
| March | 31.2°C24.5°C | 24.5°C | 19 | 2.7 | 12.112 h |
| April | 33.0°C26.8°C | 26.8°C | 31 | 5.6 | 12.412 h |
| May | 34.6°C27.9°C | 27.9°C | 41 | 6.1 | 12.613 h |
| June | 34.2°C27.6°C | 27.6°C | 36 | 7.9 | 12.813 h |
| July | 33.5°C27.0°C | 27.0°C | 40 | 9.9 | 12.713 h |
| August | 33.0°C26.6°C | 26.6°C | 58 | 11.7 | 12.512 h |
| September, selected | 32.5°C26.3°C | 26.3°C | 72 | 13.9 | 12.212 h |
| October | 30.4°C25.2°C | 25.2°C | 200 | 19.4 | 11.912 h |
| November | 27.9°C24.0°C | 24.0°C | 328 | 20.6 | 11.612 h |
| December | 26.9°C23.1°C | 23.1°C | 194 | 14.1 | 11.511 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
- Kāraikāl in SeptemberIndia · 28 kmHigh 31.8°C · Low 26.8°C · 72 mm rain
- Kumbakonam in SeptemberIndia · 33 kmHigh 34.4°C · Low 25.8°C · 96 mm rain
- Nagapattinam in SeptemberIndia · 43 kmHigh 31.7°C · Low 26.8°C · 80 mm rain
- Virudhachalam in SeptemberIndia · 58 kmHigh 34.1°C · Low 25.3°C · 116 mm rain
- Neyveli in SeptemberIndia · 59 kmHigh 33.8°C · Low 25.4°C · 117 mm rain
- Thanjavur in SeptemberIndia · 67 kmHigh 34.8°C · Low 25.7°C · 108 mm rain
- Cuddalore in SeptemberIndia · 74 kmHigh 31.7°C · Low 26.4°C · 92 mm rain
- Pattukkottai in SeptemberIndia · 84 kmHigh 33.9°C · Low 25.6°C · 116 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 Mayiladuthurai) is explained once on the Mayiladuthurai year overview and on the Sources, method and limits page.
Kāraikāl lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.