Climate averages 1991–2020
Thanjavur weather
in September.
A very hot, wet month: the 7th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Thanjavur: daytime highs average 34.8°C and nights cool to about 25.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 108 mm of rain on roughly 16 days, which makes September a 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 Kumbakonam (34 km away). In September its highs average 34.4°C, about as warm as Thanjavur, with 96 mm of rain.
Among the 692 cities listed in India, Thanjavur ranks joint 18th of 692 for the warmest September highs and joint 173rd of 692 for the driest September (rainfall, lowest first). The mean September high of those 692 cities is 30.7°C; Thanjavur is 4.2°C warmer than that mean.
From September to October, average highs fall by 2.9°C to 31.9°C, and monthly rainfall rises from 108 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
Thanjavur climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.2°C20.4°C | 20.4°C | 20 | 4.0 | 11.612 h |
| February | 32.0°C21.0°C | 21.0°C | 14 | 2.8 | 11.812 h |
| March | 35.1°C23.0°C | 23.0°C | 19 | 3.3 | 12.112 h |
| April | 36.7°C25.9°C | 25.9°C | 37 | 7.2 | 12.412 h |
| May | 37.8°C27.4°C | 27.4°C | 60 | 11.1 | 12.613 h |
| June | 36.6°C27.0°C | 27.0°C | 57 | 11.5 | 12.713 h |
| July | 35.9°C26.5°C | 26.5°C | 57 | 12.3 | 12.713 h |
| August | 35.3°C26.1°C | 26.1°C | 84 | 14.7 | 12.512 h |
| September, selected | 34.8°C25.7°C | 25.7°C | 108 | 16.2 | 12.212 h |
| October | 31.9°C24.4°C | 24.4°C | 174 | 20.3 | 11.912 h |
| November | 29.2°C22.8°C | 22.8°C | 199 | 18.2 | 11.612 h |
| December | 28.1°C21.4°C | 21.4°C | 109 | 10.5 | 11.512 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
- Kumbakonam in SeptemberIndia · 34 kmHigh 34.4°C · Low 25.8°C · 96 mm rain
- Pattukkottai in SeptemberIndia · 45 kmHigh 33.9°C · Low 25.6°C · 116 mm rain
- Tiruchirappalli in SeptemberIndia · 48 kmHigh 35.2°C · Low 25.4°C · 94 mm rain
- Pudukkottai in SeptemberIndia · 57 kmHigh 34.3°C · Low 25.2°C · 101 mm rain
- Mayiladuthurai in SeptemberIndia · 67 kmHigh 32.5°C · Low 26.3°C · 72 mm rain
- Nagapattinam in SeptemberIndia · 77 kmHigh 31.7°C · Low 26.8°C · 80 mm rain
- Kāraikāl in SeptemberIndia · 77 kmHigh 31.8°C · Low 26.8°C · 72 mm rain
- Virudhachalam in SeptemberIndia · 84 kmHigh 34.1°C · Low 25.3°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 Thanjavur) is explained once on the Thanjavur year overview and on the Sources, method and limits page.