Climate averages 1991–2020
Tirunelveli weather
in September.
A very hot, moderately wet month: the 4th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Tirunelveli: daytime highs average 34.7°C and nights cool to about 24.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 50 mm of rain on roughly 8 days, which makes September a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 11 min on an average September day.
The nearest other city in this atlas is Thenkasi (48 km away). In September its highs average 30.3°C, 4.5°C cooler than Tirunelveli, with 135 mm of rain.
Among the 692 cities listed in India, Tirunelveli ranks joint 23rd of 692 for the warmest September highs and joint 21st of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Tirunelveli is 4.1°C warmer than that mean.
From September to October, average highs fall by 2.2°C to 32.5°C, and monthly rainfall rises from 50 mm to 189 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
Tirunelveli climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 30.0°C20.4°C | 20.4°C | 32 | 5.8 | 11.712 h |
| February | 32.5°C21.1°C | 21.1°C | 29 | 5.5 | 11.812 h |
| March | 35.1°C22.6°C | 22.6°C | 40 | 6.5 | 12.112 h |
| April | 36.1°C24.9°C | 24.9°C | 59 | 9.7 | 12.312 h |
| May | 36.2°C25.9°C | 25.9°C | 54 | 8.3 | 12.513 h |
| June | 34.1°C25.4°C | 25.4°C | 35 | 6.0 | 12.613 h |
| July | 33.8°C25.0°C | 25.0°C | 28 | 6.3 | 12.613 h |
| August | 34.2°C24.7°C | 24.7°C | 35 | 6.6 | 12.412 h |
| September, selected | 34.7°C24.6°C | 24.6°C | 50 | 8.1 | 12.212 h |
| October | 32.5°C23.8°C | 23.8°C | 189 | 17.1 | 11.912 h |
| November | 29.4°C22.5°C | 22.5°C | 245 | 20.8 | 11.712 h |
| December | 28.7°C21.3°C | 21.3°C | 125 | 13.2 | 11.612 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
- Thenkasi in SeptemberIndia · 48 kmHigh 30.3°C · Low 22.2°C · 135 mm rain
- Thoothukudi in SeptemberIndia · 50 kmHigh 32.3°C · Low 26.2°C · 13 mm rain
- Kovilpatti in SeptemberIndia · 53 kmHigh 35.6°C · Low 24.7°C · 47 mm rain
- Kadayanallur in SeptemberIndia · 54 kmHigh 30.8°C · Low 22.6°C · 135 mm rain
- Nāgercoil in SeptemberIndia · 67 kmHigh 29.6°C · Low 24.4°C · 62 mm rain
- Neyyāttinkara in SeptemberIndia · 75 kmHigh 27.8°C · Low 24.1°C · 172 mm rain
- Sivakasi in SeptemberIndia · 81 kmHigh 34.9°C · Low 24.3°C · 69 mm rain
- Rajapalayam in SeptemberIndia · 82 kmHigh 34.2°C · Low 23.4°C · 126 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 Tirunelveli) is explained once on the Tirunelveli year overview and on the Sources, method and limits page.